https://doi.org/10.25923/d79a-kg51

NOAA Technical Memorandum NMFS

OCTOBER 2022

SOURCES OF HUMAN-RELATED INJURY AND 

MORTALITY FOR U.S. PACIFIC WEST COAST

MARINE MAMMAL STOCK ASSESSMENTS, 2016-2020

James V.Carretta1, Justin Greenman2, Kristin Wilkinson3,

Lauren Saez2, Dan Lawson3, and Justin Viezbicke2

1 NOAA Fisheries, SWFSC Marine Mammal and Turtle Division

8901 La Jolla Shores Drive, La Jolla, California 92037

2 NOAA Fisheries, West Coast Region, Protected Resources Division

501 West Ocean Boulevard, Suite 4200, Long Beach, California 90802

3 NOAA Fisheries, West Coast Region, Protected Resources Division

7600 Sand Point Way NE, Seattle, Washington 98115

NOAA-TM-NMFS-SWFSC-670

U.S. DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration

National Marine Fisheries Service

Southwest Fisheries Science Center
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Recommended citation

Carretta, James V., Justin Greenman, Kristin Wilkinson, Lauren Saez, Dan Lawson, and 

Justin Viezbicke. 2022. Sources of human-related injury and mortality for U.S. Pacific 

west coast marine mammal stock assessments, 2016-2020. U.S. Department of 

Commerce, NOAA Technical Memorandum NMFS-SWFSC-670.

https://doi.org/10.25923/d79a-kg51
 

 

SOURCES OF HUMAN‐RELATED INJURY AND MORTALITY FOR

U.S. PACIFIC WEST COAST MARINE MAMMAL STOCK

ASSESSMENTS, 2016‐2020

James V. Carretta1, Justin Greenman2, Kristin Wilkinson3, 

Lauren Saez2, Dan Lawson3, and Justin Viezbicke2 

1 Southwest Fisheries Science Center Marine Mammal and Sea Turtle Division National

Marine Fisheries Service National Oceanic and Atmospheric Administration 8901 La Jolla 

Shores Drive La Jolla, CA 92037 

2 Protected Resources Division West Coast Regional Office National Marine Fisheries Service 

National Oceanic and Atmospheric Administration 501 West Ocean Boulevard, Suite 4200 

Long Beach, CA 90802 

3 Protected Resources Division West Coast Regional Office National Marine Fisheries Service 

National Oceanic and Atmospheric Administration 7600 Sand Point Way NE Seattle, WA 

98115 

1 
 

Table      of Contents

Summary ................................................................................................................................................................. 4 

Methods ................................................................................................................................................................... 5 

Prorating of serious injuries (large whales only) ............................................................................. 6 

Number of cases vs MSI totals ................................................................................................................... 6 

Results ...................................................................................................................................................................... 7 

Discussion............................................................................................................................................................... 9 

............................................................................................................................................ 10 

Data Availability ................................................................................................................................................... 9 

Acknowledgments

References ........................................................................................................................................................... 10 

Table 1. Species, number of mortality and injury cases assessed, and total mortality 

and serious injury (MSI.Total), 2016 - 2020.................................................................................... 14 

Table 2a. Matrix of initial (rows) and final (columns) injury determinations for 

pinnipeds. NSI=non-serious injury, SI=serious injury. Records with initial 

determinations of ‘ALIVE’ include individual California sea lions targeted for removal 

at Williamette Falls and Bonneville Dam to protect endangered salmon under 

authority of the MMPA Section 120. .................................................................................................... 15 

Table 2b. Matrix of initial (rows) and final (columns) injury determinations for large 

whales. NSI=non-serious injury, SI=serious injury. ...................................................................... 15 

Table 2c. Matrix of initial (rows) and final (columns) injury determinations for small 

cetaceans. NSI=non-serious injury, SI=serious injury. ................................................................ 15 

Table 3. California sea lion human-related injury and mortality sources, number of 

cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ............................. 16 

Table 4. Harbor seal human-related injury and mortality sources, number of cases, and 

total mortality and serious injury (MSI.Total), 2016 - 2020. ................................................... 17 

Table 5. Humpback whale human-related injury and mortality sources, number of 

cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ............................. 18 

Table 6. Gray whale human-related injury and mortality sources, number of cases, and 

total mortality and serious injury (MSI.Total), 2016 - 2020. ................................................... 19 

Table 7. Northern elephant seal human-related injury and mortality sources, number 

of cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ........................ 20 

Table 8. Guadalupe fur seal human-related injury and mortality sources, number of 

cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ............................. 20 

Table 9. Harbor porpoise human-related injury and mortality sources, number of 

cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ............................. 21 

2 
 

 

Table 10. Short-beaked Common dolphin human-related injury and mortality sources, 

number of cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ....... 21 

Table 11. Long-beaked Common dolphin human-related injury and mortality sources, 

number of cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ....... 21 

Table 12. Pacific white-sided dolphin human-related injury and mortality sources, 

number of cases, and total mortality and serious injury (MSI.Total), 2016 - 2020. ....... 22 

Table 13. Blue whale human-related injury and mortality sources, number of cases, 

and total mortality and serious injury (MSI.Total), 2016 - 2020............................................ 22 

Figure 1. Total human-caused mortality and serious injury (MSI.Total) of marine 

mammal species appearing in the Pacific Stock Assessment Reports, 2016-2020. ....... 23 

Figure 2. Total human-caused mortality and serious injury (MSI.Total) of pinnipeds by 

source, 2016-2020. ..................................................................................................................................... 24 

Figure 3. Total human-caused mortality and serious injury (MSI.Total) of large whales 

by source, 2016-2020. ............................................................................................................................... 25 

Figure 4. Total human-caused mortality and serious injury (MSI.Total) of small 

cetaceans by source, 2016-2020........................................................................................................... 26 

Appendix 1. Human-marine mammal interaction records reviewed for injury and 

mortality, 2016-2020................................................................................................................................. 27 

3 
 

Summary

The Marine Mammal Protection Act (MMPA) requires the National Marine Fisheries Service 

(NMFS) to document human-caused mortality, non-serious injury (NSI), and serious injury 

(SI) of marine mammals in marine mammal stock assessments and to compare these levels 

to potential biological removal (PBR) thresholds under the MMPA (Wade 1998). NMFS 

defines SI as “any injury that will likely result in mortality” (50 CFR 229.2). NMFS interprets

the regulatory definition of serious injury as any injury that is more likely than not to result 

in mortality, or any injury that presents a greater than 50 percent chance of death to a marine 

mammal (NMFS 2012b). The definition does not require that all such injured animals die,

but rather requires only that the animal is more likely than not to die (NMFS 2012b). 

While documenting observed mortality is straightforward (excluding undetected or ‘cryptic

mortality’, Pace et al. 2020), distinguishing NSI from SI requires data on injury severity and

animal condition, often derived from opportunistic observations where complete 

assessment of injuries or gear burdens is not possible (Carretta and Henry 2022). NMFS 

updated its SI designation and reporting process in 2012, using guidance from previous SI

workshops (Angliss and DeMaster 1998, Andersen et al. 2008), expert opinion, and analysis 

of historical injury cases to develop new criteria for distinguishing SI from NSI (NMFS 2012a, 

2012b; NOAA 2012; Moore et al. 2013). NMFS is currently proposing updates to pinniped 

and small cetacean injury categories (NMFS 2022, 87 FR 43247), while exploring potential 

improvements to large whale injury assessments with new data (Carretta and Henry 2022).

This report contains 1919 cases of human-caused injury (including non-serious injuries) and

mortality of marine mammals occurring in U.S. West Coast waters during 2016-2020 

(Appendix 1), for species included in Pacific region marine mammal stock assessment 

reports (SARs) (e.g. Carretta et al. 2022). Subsistence and directed takes, such as gray whales 

taken by Russian natives, are not included in this report, but are reported in SARs published 

by NMFS. Previous serious injury and mortality records, including cases from 2007 through 

2019, are published in previous reports (Carretta et al. 2013, 2014, 2015b, 2016a, 2017,

2018, 2019, 2020a, 2021). 

Sources of injury and mortality data include strandings, disentanglement networks, public

reports, commercial and recreational fishermen, researchers, and fishery observer 

programs. Records include observations of injured marine mammals at sea and ashore.

Injury sources include, but are not limited to, vessel strikes, gillnet entanglement, pot and 

trap gear entanglement, shootings, marine debris entanglement, research-related 

injuries/deaths, hook and line fishery interactions, and entrainment in power plant water

intakes. Most records originate from stranding networks in California, Oregon, and 

Washington, though a few Alaska records of Eastern North Pacific gray whales (Eschrichtius

robustus) and northern elephant seals (Mirounga angustirostris) are included, because these

species are assessed in the Pacific region SARs. Other marine mammals, such as Steller sea 

lions (Eumetopias jubatus), that occur in California, Oregon, and Washington waters are 

assessed in Alaska region SARs (e.g. Muto et al. 2022) and are included in injury reports 

produced by the Alaska region (e.g. Freed et al. 2022). Two stocks of northern fur seal 

(Callorhinus ursinus) overlap in U.S. West Coast waters seasonally from December through

May, the Eastern North Pacific stock (assessed in Alaska region SARs) and the California 

4 
 

stock (assessed in Pacific region SARs) and interactions that occur during that time period

are assigned to both stocks. Injury determinations for Pacific region species/stocks in the 

central Pacific from Hawaii westward are included in separate reports (e.g. Bradford 2021,

Bradford and Lyman 2022). 

Methods

The assessment of marine mammals for evidence of human-related injury or death requires

application of systematic forensic protocols, combined with expertise in diagnosing trauma 

(Moore et al. 2013). Stranding network personnel may have varying regional standards for 

assessing causes of death and injury and thorough examination of carcasses or injured

animals is not always possible. With respect to the uncertainties in determining whether

injuries or deaths are human-related, we reviewed stranding records, including at-sea

sightings, from NMFS West Coast and Alaska regional stranding networks. Records with 

human-related causes of injury were evaluated using SI/NSI criteria for three broad

taxonomic categories (pinnipeds, large whales, and small cetaceans) detailed in NMFS

2012b. Animals whose initial reporting condition was ‘dead’ were not evaluated for SI/NSI, 

but are also included in tabular summaries of this report and in Appendix 1. 

Injury determinations (excluding 965 records where an animal’s initial condition was ‘dead’) 

include 954 injury records from 2016-2020 (Table 2). Both initial and final injury 

determinations are given for each record. For example, a pinniped entangled in gillnet that 

is constricting or impeding movement is considered seriously injured. This animal may be 

captured, taken to a rehabilitation center, treated for injuries, and released back into the wild 

without serious injuries. In the context of categorizing commercial fisheries (based on levels

of SI and mortality) for the NMFS List of Fisheries (LOF), this pinniped is considered 

seriously injured. This designation allows evaluation of fishery-specific risk to marine 

mammals, even though the pinniped was released back into the wild with non-serious 

injuries. In cases where injured pinnipeds are transferred to public display facilities

(aquaria) or U.S. Navy marine mammal programs following treatment, because their survival 

in the wild is questionable, the final injury determination is termed ‘captivity’, as the animal

is permanently removed from the wild population. This is equivalent to a SI for the purposes 

of evaluating injuries against PBR. Similar cases involve large whales entangled in fishing 

gear and subsequent disentanglement efforts. The whale’s injuries may initially be 

considered serious, especially if the entanglement restricts movement. Successful

disentanglement of all gear from a whale without lingering evidence of an entanglementrelated health decline or SI may be designated as a NSI. For purposes of the LOF, initial injury 

assessments are used in evaluating individual fisheries. In the context of assessing SI and

mortality against PBR levels, the final injury assessment or condition is used.

Takes reported by the Northwest Indian Fisheries Commission (NWIFC) lack details on 

animal condition. However, the interactions reported here occurred primarily in drift and

set gillnet fisheries, gear types where survival of pinnipeds and cetaceans is rarely-observed

(Carretta 2022). In this report, we assume that reported NWIFC interactions represent 

serious injuries or deaths and thus, they are coded as ‘DEAD’ in this report. Serious injuries 

and deaths both represent a mortality and serious injury (MSI) value = 1 that is counted 

against PBR in marine mammal stock assessments, therefore, the coding of these cases as 

5 
 

             

           

either ‘SI’ or ‘DEAD’ results in the same level of removals that is compared to potential

biological removal (PBR).

Most records involve a single anthropogenic source of injury or death, but animals may show 

signs of trauma from multiple sources. For example, pinnipeds entangled in gillnets may also 

have evidence of gunshot wounds. Where multiple sources of injury or death are reported, 

we attempt to identify the primary cause of death or injury in this report. 

Prorating of serious injuries (large whales only)

Large whales offer the opportunity to track outcomes of human-caused injuries, due to the 

ability to recognize individuals over time. In addition to ‘NSI’ and ‘SI’ categories, a third 

category of prorated serious injury (‘SI prorate’) is used for large whales. Prorated SI 

categories are determined from large whale records where the outcome of the injury is 

known, based on a review of historical large whale injury cases (NMFS 2012b). For example, 

25 vessel-strike cases involving large whales with known outcomes were reviewed and 13

(52%) resulted in a decline in health status or death of the animal (NMFS 2012b). These data

are used to inform decision-making on current vessel-strike lacerations where the severity 

of the laceration (‘superficial’ versus ‘deep’) is unknown and the vessel’s size and speed are 

unknown. For these cases, SI is prorated by 0.52 to reflect the known outcomes of the 25

cases with vessel-strike lacerations. For cases with sufficient vessel-strike injury details,

other SI codes are applied. If a vessel-strike laceration is superficial and does not extend

below the blubber layer, this is considered a NSI. If the laceration extends below the blubber 

layer (‘deep’), the whale is considered seriously injured (equivalent to a SI prorate value of

1.0). An example of calculating annual human-caused SI and mortality for large whales as 

part of the SAR process might include 10 documented vessel-strike lacerations of large 

whales of unknown severity, where the vessel’s size and speed are unknown. Ten large 

whales with lacerations of unknown severity are counted as 10 x 0.52 = 5.2 cases of SI. If one 

of these cases were confirmed as a deep laceration, then the calculation would be 9 x 0.52 = 

4.7 + 1.0 = 5.7 cases of SI. 

Number of cases vs MSI totals

In this report, we distinguish between the number of cases documented, versus the sum of 

total mortality and serious injury (MSI) reported here and in marine mammal stock 

assessments. Using humpback whales as an example, the total number of cases assessed 

between 2016 and 2020 was n=153, whereas the sum of mortalities and serious injuries 

resulting from these cases was n=112.45 (Table 1). In this report, case totals for the pooled 

taxa of pinnipeds, large whales, and small cetaceans are summarized in Tables 2a, 2b, and 

2c, while individual cases for all species appear in Appendix 1. Species-specific MSI totals 

after cases are assessed and assigned as non-serious or serious injuries are shown in Figure

1. MSI totals by species and broad taxa are summarized in Tables 1-13 (for species with 10 

or more cases) and Figures 1-4 (all species and broad taxa). The reader should understand 

that human-caused MSI totals included in SARs may exceed totals summarized in this report.

This is because SARs may include statistical estimates of undetected MSI from fisheries 

bycatch (Carretta 2022, Jannot et al. 2021), estimates of vessel strike mortality (Rockwood 

et al. 2017), proration of unidentified whale injuries to species (Carretta 2018), and 

6 
 

corrected estimates of fishery-related stranding numbers from estimates of carcass recovery

(Carretta et al. 2016b). 

Results

For the five-year period 2016-2020, a total of 1919 human-related injury (n=954) and 

mortality (n=965) records are summarized by species and broad taxa in Tables 1-2 and

Figures 2-4. For species with 10 or more records, we summarize MSI totals by anthropogenic 

source in Tables 3-13. Approximately 82% of all records represent opportunistic reports of

beach strandings and at-sea sightings, while the remaining 18% represent 

systematic/monitored sources, including fishery observer programs (n=326), monitored 

research-related activities (n=19), or authorized removals of pinnipeds from Bonneville 

Dam and Willamette Falls under MMPA Section 120 (n=151). Pinnipeds (n=1513) were the 

most commonly documented injured or killed taxon due to human-related activities (Table

2a, Figure 2), followed by large whales (n=257) (Table 2b, Figure 3) and small cetaceans 

(n=149) (Table 2c, Figure 4). Animals initially encountered alive accounted for 954 records, 

which were evaluated and assigned SI/NSI determinations, including 745 pinnipeds, 200

large whales, and 9 small cetaceans (Tables 2a-c).

Pinnipeds were most commonly seriously injured or killed due to interactions with gillnet 

and trawl fisheries (n=555), shootings (n=172, and authorized removals under MMPA 

Section 120 (n=151), and harassment (n=109) (Figure 2). Pinniped injury and mortality

records included California sea lions (Zalophus californianus) (n=998) (Table 3), harbor seals 

(Phoca vitulina) (n=365) (Table 4), northern elephant seals (Mirounga angustirostris) (n=66)

(Table 7), Guadalupe fur seals (Arctocephalus townsendi) (n=61) (Table 8), unidentified 

pinnipeds (n=8), northern fur seals (n=8), unidentified fur seals (n=3), unidentified sea lions 

(n=2), unidentified otariids (n=1), and unidentified seals (n=1) (Table 2). Many pinniped

cases involve human intervention and treatment, either in the field or through capture and

care at a rehabilitation facility. For those pinnipeds treated at rehabilitation facilities and

subsequently released, it is assumed that they survived following treatment and their final

injury assessments were NSI. An exception to this involves dependent pups that are released

alone post-treatment, which are considered to be serious injuries. Pinniped records lacking 

details whether the animal was released following treatment are assumed to be seriously

injured. Some pinnipeds were treated and released on site, and their final injury status was

case-specific. A number of pinnipeds were euthanized due to their injuries (n=102), while 

others were sent to public display facilities (n=4) because their existing post-treatment

condition made survival in the wild unlikely or they were individuals targeted for removal 

to protect endangered salmon. Of the 1513 pinniped records, 1031 animals died as a result 

of their injuries and an additional 268 pinniped cases were assigned as serious injuries, likely 

to result in death (Table 2a). Increasing numbers of pinniped strandings in recent years have 

stretched the resources of rehabilitation facilities on the U.S. West Coast and have limited 

the ability to track the outcome of all cases. 

Large whale injury and mortality cases involved humpback whales (Megaptera

novaeangliae, n=153) (Table 5), gray whales (n=71) (Table 6), blue whales (Balaenoptera

musculus, n=13) (Table 13), unidentified large whales (n=11), fin whales (Balaenoptera

physalus, n=6), minke whale (Balaenoptera acutorostrata, n=2), and sperm whale (Physeter

7 
 

	 	

macrocephalus, n=1) (Table 1). Approximately 26.5% of large whale injury cases (excluding 

whales initially detected dead) involved human intervention to remove gear. The relatively 

low percentage of rescue attempts reflects that many entangled whales are only seen once 

and that adverse weather conditions often prohibit safe disentanglement attempts. Fourteen 

large whale records initially designated as SI resulted in a final injury status of NSI, the result

of successful disentanglement efforts or the animal freeing itself of gear over time (Table 2b).

Of the 257 large whale records of human-caused injuries and mortalities, 57 whales were 

initially reported as dead (+ 8 later died from their injuries) and the remaining 200 were 

assessed for NSI/SI (Table 2b). The 65 large whale records involving dead animals were

represented by vessel strikes (n=36), fishery-related entanglements (n=26), entanglement 

in marine debris (n=1), illegal hunts (n=1), and shootings (n=1). Of the 200 large whales 

evaluated for NSI/SI, fishery-related entanglements (n=182) were the most common cause 

of injury, followed by vessel strikes (n=14) and entanglement in marine debris (n=4). 

Humpback whale injuries and mortality (n=153) were most often reported from 

entanglements in pot/trap fisheries (n=70), followed by unidentified fishing gear (n=58),

vessel strikes (n=14), gillnet fisheries (n=9), hook and line fisheries (n=1) and marine debris 

(n=1) (Table 5). Many humpback whale records involving unidentified fishing gear are likely

to represent pot/trap fisheries, because they are the most commonly-identified source of

entanglement for the species. The sum of all non-serious, serious, and prorated serious 

injuries from the 153 humpback whale cases recorded during 2016-2020 was n=112.45 

(Table 2, Figure 1).

Gray whale injuries and mortality (n=71) included vessel strikes (n=21), unidentified fishing

gear (n=19), gillnet fisheries (n=15), pot/trap fisheries (n=11), marine debris (n=4), and an 

illegal hunt (n=1) (Table 6). Many of the unidentified fishing gear cases involving gray whales 

were likely pot/trap fisheries or entangling net fisheries, based on the percentages of known 

gear type records involving gray whales. The sum of all non-serious, serious, and prorated 

serious injuries from the 71 gray whale cases recorded during 2016-2020 was n=61.25 

(Table 1, Figure 1).

A total of 149 small cetacean records were reviewed but were rarely assessed for SI (n=9) 

because most were initially reported as dead (n=140) (Table 2c). Mortality in gillnets, trawls, 

and unidentified fisheries accounted for 138 small cetacean records, and 62 small cetacean 

records were derived from systematic observer programs or monitored activities. Most

records involved fishery-related deaths of harbor porpoise (Phocoena phocoena) (n=39)

(Table 9), short-beaked common dolphin (Delphinus delphis) (n=38) (Table 10), and longbeaked common dolphins (Delphinus delphis bairdii) (n= 33) (Table 11). Research-related 

entanglements of small cetaceans in scientific trawls or nets accounted for 14 records, all 

were Pacific white-sided dolphins (Lagenorhynchus obliquidens) (Table 12). Small cetaceans 

assessed for injury severity (excluding animals initially found dead) included long-beaked

common dolphin (n=2), unidentified common dolphin (n=2) (Delphinus sp.), Pacific whitesided dolphin (n=1), harbor porpoise (n=1), striped dolphin (Stenella coruleoalba) (n=2),

and unidentified dolphin (n=1). (Tables 1 and 2). Of the 9 small cetacean records assessed 

for injuries, 5 animals later died, 3 were determined to be serious injuries, and one was

determined to be a non-serious injury (Table 2c). In addition to delphinids and porpoises, 

there was one Blainville’s beaked whale (Mesoplodon densirostris, n=1) recorded dead as the 

8 
 

   

result of a gillnet fishery interaction, and one vessel strike death of a Baird’s beaked whale 

(Berardius bairdii, n=1). 

Discussion

Most records of human-related injuries and deaths to marine mammals represent 

opportunistic reports from strandings and at-sea sightings. Stranding data are considered

minimum counts of human-related injury and mortality because not all carcasses come 

ashore, are detected, or human-related causes are not recognized due to carcass

decomposition. Where evaluated, estimates of recovery rates of cetacean carcasses are 

consistently low (<1% to 33%) across different regions and species, highlighting that 

observed numbers underestimate true impacts (Kraus et al. 2005, Williams et al. 2011, Pace 

et al. 2021, Prado et al. 2013), even for extremely coastal species (Wells et al. 2015, Carretta 

et al. 2016b). Not all human-related impacts are represented in this report, such as military

sonars and other anthropogenic sounds that may impact beaked whales and the effects of

which would be unknown unless affected animals stranded (Cox et al. 2006). Variability in 

the assessment and determination of human-related injuries and mortality by responder or

region is an unavoidable situation because regional data-recording standards may differ and 

the ability to examine animals may be compromised by weather or accessibility to carcasses 

(Moore et al. 2013). We have made an effort to review only records that have unequivocal or 

probable human-related impacts and recognize that some cases may be missed because of a 

failure to recognize human-caused injuries and deaths. Some injuries and deaths attributed 

to marine debris involve derelict fishing gear that cannot be linked to a specific fishery. In

some cases, fishing gear originates from outside of U.S. waters (Carretta et al. 2014). Impacts

of commercial gillnet, pot, and trap fisheries are likely greater than the number of

observations because derelict gear may entangle new animals for long periods. Examples 

include ghost netting that contained harbor seal carcasses in varying states of

decomposition, evidence that the net had entangled animals over a long time (Carretta et al.

2013, 2014, 2015b, 2016b). A small percentage of pinnipeds died after an initial injury 

assessment of NSI. Nearly all of these animals died during treatment in rehabilitation

facilities, with hook-related injuries that appeared superficial (hooks in flippers and/or lip).

Post-mortem examinations often revealed causes of death that were unrelated to the visible 

injury. For example, a California sea lion with a hook in its back was found during necropsy 

to have sharp fragments of plastic in its stomach. Other cases involved bullets found postmortem or hooks in the esophagus/stomach, which were not apparent during the initial

examination. 

Data Availability

The data summarized in this report are available at Github for download as a CSV file. In the 

R-programming environment, run the following code, which will return a data frame: 

address<‐"https://raw.githubusercontent.com/JimCarretta/MSI‐data/main/2016_2020_5yr_MSI.csv"

MSI.data<‐read.csv(url(address))

9 
 

Acknowledgments

Many of the records in this report provided by those who devote their time to rescue and aid

marine mammals in the wild. We would like to thank the fishery observers, academic 

researchers, disentanglement and stranding network personnel, vessel skippers, and 

members of the public for their reports on dead and injured marine mammals. Thanks to 

Allison Henry, Nancy Young, James Freed, and the Pacific Scientific Review Group for 

reviewing our serious injury cases. 

References

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Table 1. Species, number of mortality and injury cases assessed, and total mortality and

serious injury (MSI.Total), 2016 ‐ 2020.

Species Cases MSI.Total 

BAIRD'S BEAKED WHALE 1 1.00 

BLAINVILLE'S BEAKED WHALE 1 1.00 

BLUE WHALE 13 10.50 

CALIFORNIA SEA LION 998 834.00 

COMMON DOLPHIN, LONG-BEAKED 33 33.00 

COMMON DOLPHIN, SHORT-BEAKED 38 38.00 

COMMON DOLPHIN, UNIDENTIFIED 3 2.00 

DALL'S PORPOISE 2 2.00 

FIN WHALE 6 6.00 

GRAY WHALE 71 61.25 

GUADALUPE FUR SEAL 61 47.00 

HARBOR PORPOISE 39 39.00 

HARBOR SEAL 365 358.00 

HUMPBACK WHALE 153 112.45 

MINKE WHALE 2 1.75 

NORTHERN ELEPHANT SEAL 66 53.00 

NORTHERN FUR SEAL 8 6.00 

NORTHERN RIGHT WHALE DOLPHIN 4 4.00 

PACIFIC WHITE-SIDED DOLPHIN 17 17.00 

RISSO'S DOLPHIN 1 1.00 

SPERM WHALE 1 1.00 

STRIPED DOLPHIN 5 5.00 

UNIDENTIFIED DOLPHIN 5 5.00 

UNIDENTIFIED FUR SEAL 3 1.00 

UNIDENTIFIED OTARIID 1 1.00 

UNIDENTIFIED PINNIPED 8 0.00 

UNIDENTIFIED SEA LION 2 2.00 

UNIDENTIFIED SEAL 1 1.00 

UNIDENTIFIED WHALE 11 7.59 

14 
Table 2a. Matrix of initial (rows) and final (columns) injury determinations for pinnipeds.

NSI=non‐serious injury, SI=serious injury. Records with initial determinations of ‘ALIVE’

include individual California sea lions targeted for removal at Williamette Falls and Bonneville

Dam to protect endangered salmon under authority of the MMPA Section 120.

CAPTIVITY DEAD NSI SI 

ALIVE 0 151 0 0 

DEAD 0 768 0 0 

NSI 0 11 96 26 

SI 4 101 114 242 

Table 2b. Matrix of initial (rows) and final (columns) injury determinations for large whales.

NSI=non‐serious injury, SI=serious injury.

DEAD NSI SI SI (PRORATE) 

DEAD 57 0 0 0 

NSI 0 12 0 0 

SI 8 6 52 3 

SI (PRORATE) 0 8 1 110 

Table 2c. Matrix of initial (rows) and final (columns) injury determinations for small

cetaceans. NSI=non‐serious injury, SI=serious injury.

 DEAD NSI SI 

DEAD 140 0 0 

SI 5 1 3 

15 
                           

           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 3. California sea lion human‐related injury and mortality sources, number of cases, and

total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

GILLNET FISHERY, TRIBAL 175 175 

HOOK AND LINE FISHERY 166 95 

AUTHORIZED MMPA SEC. 120 REMOVAL 151 151 

SHOOTING 135 131 

CATCHER PROCESSOR MIDWATER TRAWL 93 83 

MARINE DEBRIS 59 39 

CATCH SHARES BOTTOM TRAWL 34 13 

OPEN ACCESS CA HALIBUT BOTTOM TRAWL 34 31 

GILLNET FISHERY 30 19 

MS CATCHER VESSELS MIDWATER TRAWL 19 19 

UNIDENTIFIED FISHERY INTERACTION 17 13 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 15 15 

VESSEL STRIKE 13 13 

LIMITED ENTRY SABLEFISH HOOK AND LINE 8 2 

HARASSMENT 7 6 

CA SWORDFISH DRIFT GILLNET FISHERY 6 6 

OIL / TAR 6 3 

SCIENTIFIC RESEARCH 5 5 

TROLL FISHERY, TRIBAL 5 5 

WEST COAST GROUNDFISH FISHERY 4 4 

UNIDENTIFIED HUMAN INTERACTION 3 3 

VEHICLE COLLISION 3 3 

CATCH SHARES HOOK AND LINE 2 1 

RIDGEBACK PRAWN BOTTOM TRAWL 2 0 

BLUNT FORCE TRAUMA 1 1 

CA LOBSTER TRAP / POT ENTANGLEMENT 1 0 

HAKE MIDWATER TRAWL 1 0 

MIDWATER TRAWL ROCKFISH EM 1 1 

NEARSHORE HOOK AND LINE 1 1 

SEA CUCUMBER BOTTOM TRAWL 1 1 

16 
                           

         

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 4. Harbor seal human‐related injury and mortality sources, number of cases, and total

mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

GILLNET FISHERY, TRIBAL 119 119 

HARASSMENT 100 98 

SHOOTING 37 37 

GILLNET FISHERY 36 35 

VESSEL STRIKE 21 21 

HOOK AND LINE FISHERY 13 10 

MARINE DEBRIS 9 9 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 8 8 

DOG ATTACK 8 7 

UNIDENTIFIED FISHERY INTERACTION 5 5 

UNIDENTIFIED HUMAN INTERACTION 3 3 

OPEN ACCESS CA HALIBUT BOTTOM TRAWL 2 2 

VEHICLE COLLISION 2 2 

OIL / TAR 1 1 

POT FISHERY, TRIBAL 1 1 

17 
                         

           

 

Table 5. Humpback whale human‐related injury and mortality sources, number of cases, and

total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

UNIDENTIFIED FISHERY INTERACTION 58 43.75 

DUNGENESS CRAB POT FISHERY (CALIFORNIA) 34 23.75 

VESSEL STRIKE 14 13.20 

UNIDENTIFIED POT/TRAP FISHERY ENTANGLEMENT 13 9.50 

DUNGENESS CRAB POT FISHERY (WASHINGTON) 7 5.50 

GILLNET FISHERY 6 2.00 

CA SPOT PRAWN TRAP FISHERY 5 3.25 

GILLNET FISHERY, TRIBAL 3 2.50 

DUNGENESS CRAB POT FISHERY (COMMERCIAL) 2 2.00 

DUNGENESS CRAB POT FISHERY (OREGON) 2 1.75 

DUNGENESS CRAB POT FISHERY (RECREATIONAL) 2 1.00 

WA/OR/CA SABLEFISH POT FISHERY 2 1.50 

HOOK AND LINE FISHERY 1 0.75 

MARINE DEBRIS 1 1.00 

POT FISHERY, TRIBAL 1 1.00 

SPOT PRAWN TRAP/POT FISHERY (RECREATIONAL) 1 0.00 

WA/OR/CA SABLEFISH POT FISHERY AND CA COONSTRIPE SHRIMP POT FISHERY 1 0.00 

18 
                           

         

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 6. Gray whale human‐related injury and mortality sources, number of cases, and total

mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

VESSEL STRIKE 21 19.00 

UNIDENTIFIED FISHERY INTERACTION 19 16.00 

GILLNET FISHERY 11 9.25 

DUNGENESS CRAB POT FISHERY (WASHINGTON) 6 4.75 

MARINE DEBRIS 4 2.75 

DUNGENESS CRAB POT FISHERY (CALIFORNIA) 2 2.00 

UNIDENTIFIED POT/TRAP FISHERY ENTANGLEMENT 2 1.75 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 1 1.00 

CA SWORDFISH DRIFT GILLNET FISHERY 1 1.00 

DUNGENESS CRAB POT FISHERY (COMMERCIAL) 1 1.00 

GILLNET FISHERY, TRIBAL 1 1.00 

ILLEGAL HUNT 1 1.00 

SALMON GILLNET FISHERY 1 0.75 

19 
                         

             

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                           

           

 

 

 

 

 

 

 

 

 

 

Table 7. Northern elephant seal human‐related injury and mortality sources, number of cases,

and total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

OIL / TAR 

HARASSMENT 

16 

12 

15 

5 

MARINE DEBRIS 8 4 

CA SWORDFISH DRIFT GILLNET FISHERY 4 4 

HOOK AND LINE FISHERY 3 2 

SHOOTING 3 3 

CATCHER PROCESSOR MIDWATER TRAWL 2 2 

DOG ATTACK 2 2 

VESSEL STRIKE 2 2 

BERING SEA AND ALEUTIAN ISLANDS ATKA MACKEREL TRAWL 1 1 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 1 1 

CATCH SHARES BOTTOM TRAWL 1 1 

CATCH SHARES POT 1 1 

DUNGENESS CRAB POT FISHERY (CALIFORNIA) 

GULF OF ALASKA PACIFIC COD LONGLINE 

1 

1 

1 

1 

GULF OF ALASKA SABLEFISH LONGLINE 1 1 

MIDWATER HAKE TRAWL 1 1 

MIDWATER ROCKFISH TRAWL 1 1 

MS CATCHER VESSELS MIDWATER TRAWL 1 1 

OPEN ACCESS CA HALIBUT BOTTOM TRAWL 1 1 

UNIDENTIFIED HUMAN INTERACTION 1 1 

VEHICLE COLLISION 1 1 

WEST COAST GROUNDFISH TRAWL 1 1 

Table 8. Guadalupe fur seal human‐related injury and mortality sources, number of cases, and

total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

UNIDENTIFIED FISHERY INTERACTION 23 19 

MARINE DEBRIS 16 13 

HAWAII LONGLINE SHALLOW SET FISHERY 10 4 

GILLNET FISHERY 4 4 

SHOOTING 2 2 

TRAWL FISHERY UNIDENTIFIED 2 2 

UNIDENTIFIED HUMAN INTERACTION 2 2 

HOOK AND LINE FISHERY 1 0 

UNIDENTIFIED NET FISHERY 1 1 

20 
                         

           

 

 

 

 

 

 

                   

                   

 

 

 

 

                     

                 

 

 

 

 

 

 

 

Table 9. Harbor porpoise human‐related injury and mortality sources, number of cases, and

total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

GILLNET FISHERY 13 13 

GILLNET FISHERY, TRIBAL 10 10 

UNIDENTIFIED FISHERY INTERACTION 10 10 

UNIDENTIFIED NET FISHERY 4 4 

VESSEL STRIKE 2 2 

Table 10. Short‐beaked Common dolphin human‐related injury and mortality sources,

number of cases, and total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

CA SWORDFISH DRIFT GILLNET FISHERY 34 34 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 3 3 

GILLNET FISHERY 1 1 

Table 11. Long‐beaked Common dolphin human‐related injury and mortality sources, number

of cases, and total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

GILLNET FISHERY 23 23 

UNIDENTIFIED FISHERY INTERACTION 4 4 

CA HALIBUT AND WHITE SEABASS SET GILLNET FISHERY 2 2 

CA SWORDFISH DRIFT GILLNET FISHERY 2 2 

CA SPOT PRAWN TRAP FISHERY 1 1 

HOOK AND LINE FISHERY 1 1 

21 
                       

               

 

 

 

 

 

                           

         

 

 

 

 

Table 12. Pacific white‐sided dolphin human‐related injury and mortality sources, number of

cases, and total mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

SCIENTIFIC RESEARCH 14 14 

CATCH SHARES BOTTOM TRAWL 1 1 

CATCHER PROCESSOR MIDWATER TRAWL 1 1 

GILLNET FISHERY 1 1 

Table 13. Blue whale human‐related injury and mortality sources, number of cases, and total

mortality and serious injury (MSI.Total), 2016 ‐ 2020.

Source Cases MSI.Total 

UNIDENTIFIED FISHERY INTERACTION 6 3.75 

VESSEL STRIKE 4 4.00 

DUNGENESS CRAB POT FISHERY (CALIFORNIA) 3 2.75 

22 
                       

                         

                               

                                         

                               

Figure 1. Total human‐caused mortality and serious injury (MSI.Total) of marine mammal

species appearing in the Pacific Stock Assessment Reports, 2016‐2020. Some injury cases are

determined to be non‐serious (assigned a MSI value = 0) or are prorated (assigned a positive

MSI value > 0 and <1), thus, the sum of MSI values in this figure may not be a whole number

and may be less than the number of species‐specific cases noted in the text or Table 1.

23 
                         

                             

                 

Figure 2. Total human‐caused mortality and serious injury (MSI.Total) of pinnipeds by source,

2016‐2020. MSI totals shown may be less than the total number of cases evaluated, as non‐

serious injuries (NSI) are assigned a MSI value of zero.

24 
                         

                             

                               

                   

Figure 3. Total human‐caused mortality and serious injury (MSI.Total) of large whales by

source, 2016‐2020. MSI totals shown may be less than the total number of cases evaluated,

as non‐serious injuries (NSI) are assigned a MSI value of zero, while other cases may be

assigned prorated MSI values greater than 0 but less than 1.

25 
                         

                             

                   

Figure 4. Total human‐caused mortality and serious injury (MSI.Total) of small cetaceans by

source, 2016‐2020. MSI totals shown may be less than the total number of cases evaluated,

as non‐serious injuries (NSI) are assigned a MSI value of zero.

26 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

THE DISTAL END OF THE PEDUNCLE AND THE FLUKES 

BAIRD'S HAD BEEN SEVERED OFF, LIKELY PERIMORTEM. 

BEAKED CA-OR-WA 2016 8 29 VESSEL STRIKE MARIN CA DEAD STANDARD LENGTH MEASUREMENT IS TO THE SEVERED DEAD 

WHALE PEDUNCLE. LIMITED NECROPSY DUE TO THE LEVEL OF 

DECOMPOSITION. 

BLAINVILLE'S 

BEAKED CA-OR-WA 2016 10 9 GILLNET FISHERY CLALLAM WA DEAD 

WHALE 

DETERMINED VIA EXTERNAL AND INTERNAL EXAM, 

HISTOLOGY. SEVERAL EVENLY SPACED (5CM BETWEEN 

EACH "X") CROSSHATCH MARKS ON FRONT OF 

ROSTRUM AND SIDES OF HEAD. THIN INDENTATIONS ON 

LEFT AND RIGHT SIDES OF BEAK THAT APPEAR TO 

WRAP AROUND BEAK. DIFFUSE BRUISING THROUGHOUT 

HEAD BLUBBER, SEVERE ON RIGHT SIDE BEHIND DEAD 

BLOWHOLE, WITH EDEMATOUS MUSCLE BENEATH. 

BODY BRUISING, PARTICULARLY ON ENTIRE VENTRAL 

SIDE OF THE ANIMAL AND ALONG THE TIPS OF THE 

DORSAL VERTEBRAL PROCESSES. EVIDENCE OF 

POSSIBLE DROWNING, CONFIRMED VIA HISTOLOGY. 

ALSO INGESTED 15CM LONG PIECE OF BLACK KNOTTED 

ROPE (3CM DIAMETER). 

TRAILING 2 RED BULLET BUOYS WITH PURPLE T6 CDFW 

DUNGENESS CRAB BUOY TAG; LINE WRAPPED 

THROUGH MOUTH OR AROUND PECTORAL FIN. GEAR 

WAS ORIGINALLY SET OFF SAN LUIS OBISPO IN 40 - 70 DUNGENESS CRAB EASTERN N FATHOMS OF WATER. WHALE SEEN NEXT DAY, LOGGING BLUE WHALE 2016 6 26 POT FISHERY SAN DIEGO CA SI SI 

PACIFIC AT SURFACE, WHICH IS ABNORMAL BEHAVIOR FOR A (CALIFORNIA) BLUE WHALE. UNSUCCESSFUL ATTEMPT AT 

DISENTANGLING WHALE. FULL CONFIGURATION OF 

GEAR UNKNOWN. THIS IS A SERIOUS INJURY BECAUSE 

OF THE NOTED HEALTH DECLINE OF THE WHALE. 

TRAILING BUOYS AND LINE. MULTIPLE RESIGHTS AS FAR 

NORTH AS SANTA CRUZ COUNTY. SEEN ACTIVELY 

FEEDING WITH OTHER BLUE WHALES THROUGH EARLY 

OCTOBER. FINAL SIGHTING WAS IN OCTOBER OFF OF 

LOS ANGELES. WHALE BODY CONDITION WAS 

DESCRIBED AS 'EMACIATED' IN AUGUST AND 'FAIR' IN 

OCTOBER. LINE WRAPPED AROUND BODY, 2 YELLOW 

DUNGENESS CRAB BUOYS WITH BLUE TIPS, TRAILING 30 FEET BEHIND EASTERN N BLUE WHALE 2016 7 14 POT FISHERY LOS ANGELES CA SI WHALE, SPACED 1 FM APART, PURPLE CDFW SI 

PACIFIC (CALIFORNIA) DUNGENESS CRAB BUOY TAG VISIBLE, VIDEO SHOWS 

ALGAE AND BARNACLE GROWTH ON ROPE AND BUOYS, 

COMPRESSION OF BUOYS. UNCERTAINTY OVER 

WHETHER LINE EXTENDS THROUGH MOUTH OR JUST 

OVER PECTORAL FLIPPERS. HEALTH DECLINE AND TWO 

CRISS-CROSSED CONSTRICTING MULTIPLE WRAPS OF 

LINE POSTERIOR OF DORSAL AROUND BODY WARRANTS 

SERIOUS INJURY. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

BLUE WHALE EASTERN N PACIFIC 2016 8 15 UNIDENTIFIED FISHERY INTERACTION SAN FRANCISCO CA SI (PRORATE) REPORT OF AN ENTANGLED WHALE NEAR THE FARALLON ISLANDS. AMOUNT OF GEAR AND CONFIGURATION UNKNOWN. SI (PRORATE) 

BLUE WHALE EASTERN N PACIFIC 2016 8 28 UNIDENTIFIED FISHERY INTERACTION MONTEREY CA SI (PRORATE) TWO BLACK OR GREEN BUOYS WITH ABUNDANT MARINE GROWTH TRAILING BEHIND WHALE ABOUT 20-30 FEET. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

BLUE WHALE EASTERN N PACIFIC 2016 10 26 VESSEL STRIKE SAN MATEO CA DEAD 

MODERATELY DECOMPOSED 65-FOOT LONG BLUE 

WHALE NECROPSIED. FINDINGS OF BLUNT FORCE 

TRAUMA. SOME UNCERTAINTY WHETHER OR NOT 

VESSEL STRIKE WAS POST-MORTEM. 

DEAD 

BLUE WHALE EASTERN N PACIFIC 2017 5 25 VESSEL STRIKE MARIN CA DEAD 

NECROPSY. BLUNT FORCE TRAUMA DUE TO A BOAT 

STRIKE. LEFT SIDE OF BODY WAS DAMAGED. FINDINGS 

INCLUDED 10 BROKEN RIBS AND 10 FRACTURED 

VERTEBRAE NEAR THE TAIL AND MID-BODY. 

DEAD 

BLUE WHALE EASTERN N PACIFIC 2017 6 10 DUNGENESS CRAB POT FISHERY (CALIFORNIA) SAN FRANCISCO CA SI (PRORATE)

TWO BUOYS ON RIGHT SIDE OF BODY, WITH LINE 

POSSIBLY EXTENDING TO MOUTH. ONE BUOY HAD A 

RED/ORANGE TAG, THIS IS A CA DUNGENESS CRAB 

ENTANGLEMENT. ONE LARGER YELLOW BUOY WITH 

BLACK LONGITUDINAL STRIPE TRAILING OFF RIGHT 

SIDE, MID BODY, POSSIBLE MOUTH ENTANGLEMENT. 

ANIMAL LUNGING AT SURFACE, OBSERVERS REPORT IT 

MIGHT HAVE SELF-RELEASED, BUT BUOYS WERE NOT 

SEEN AGAIN. UNCERTAINTY REGARDING CONTINUED 

PRESENCE OF GEAR ON ANIMAL AND UNKNOWN 

CONFIGURATION WARRANTS PRORATED SERIOUS 

INJURY. 

SI 

(PRORATE) 

BLUE WHALE EASTERN N PACIFIC 2017 8 19 UNIDENTIFIED FISHERY INTERACTION SAN DIEGO CA SI (PRORATE) 

BLUE LINE DRAPED OVER BACK OF WHALE DIAGONALLY, 

FROM ANTERIOR TO DORSAL FIN, TOWARDS MIDBODY. 

PHOTOS SHOW THAT PRIVATE VESSEL RETRIEVED, VIA 

CUTTING, A LONG LENTGH OF BLUE LINE AND 2 LARGE 

BUMPER BUOYS. UNCLEAR IF GEAR REMAINS ON 

ANIMAL. GOOD BODY CONDITION. UNKNOWN GEAR 

CONFIGURATION AND AMOUNT. 

SI

(PRORATE) 

BLUE WHALE EASTERN N PACIFIC 2017 9 23 UNIDENTIFIED FISHERY INTERACTION SAN FRANCISCO CA SI (PRORATE) BLUE WHALE TRAILING A SINGLE BUOY APPROXIMATELY 1.5 BODY LENGTHS BEHIND TAIL. ANIMAL WAS ACTIVELY SWIMMING. GEAR CONFIGURATION AND AMOUNT UNKNOWN. SI (PRORATE) 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

BLUE WHALE EASTERN N PACIFIC 2018 6 16 VESSEL STRIKE SAN FRANCISCO CA DEAD 

NECROPSY: LARGE AREAS OF MUSCLE HEMORRHAGE 

ON THE LEFT AND RIGHT DORSO-LATERAL SIDES. 

HEMORRHAGED TISSUE OBSERVED CAUDAL TO THE 

GAPE ON THE LEFT SIDE. EXTENSIVE NECROTIC TISSUE 

WAS NOTED CAUDAL TO THE SKULL AT THE CERVICAL 

VERTEBRAE. BONE BRUISING WAS OBSERVED ON ALL 

OF THE RIBS THAT WERE VISUALIZED ON THE LEFT SIDE 

AND ON THE LEFT MANDIBLE. THERE WAS EXTENSIVE 

FREE-FLOWING BLOOD OBSERVED WHEN THE RIGHT 

THORAX WAS OPENED UP. THE FIRST THREE (3) 

LUMBAR VERTEBRAE WERE SURROUNDED BY 

NECROTIC TISSUE AND WERE SHATTERED INTO MANY 

PIECES, INCLUDING FRACTURED LATERAL PROCESSES, 

FRACTURED CENTRUMS, AND A FRACTURED 

EPIPHYSEAL PLATE. ALL OTHER VERTEBRAE THAT 

WERE VISUALIZED WERE INTACT. FINDINGS 

CONSISTENT WITH VESSEL STRIKE AS CAUSE OF 

DEATH. 

DEAD 

BLUE WHALE EASTERN N PACIFIC 2018 7 16 UNIDENTIFIED FISHERY INTERACTION SONOMA CA SI (PRORATE) WHALE TRAILING 2 YELLOW BUOYS APPROXIMATELY 40 FT. BEHIND ANIMAL. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

BLUE WHALE EASTERN N PACIFIC 2019 6 2 VESSEL STRIKE LOS ANGELES CA DEAD 

WHALE CAME IN ON THE BOW OF A CRUISE SHIP 

ENTERING LONG BEACH. VESSEL HAD LEFT MEXICO THE 

PREVIOUS NIGHT. LARGE AREA OF TRAUMA 

SURROUNDING A CREASE ON THE WHALES BACK JUST 

IN FRONT OF DORSAL FIN. CREASE WAS ALSO 

SURROUNDED BY BLUE PAINT. CREASE AND BLUE PAINT 

ARE LIKELY FROM ANIMAL BEING PINNED TO THE BOW 

OF THE SHIP. THERE IS HEMORRHAGING OBSERVED ON 

THE OPPOSITE SIDE OF THE BODY FROM WHERE THE 

CREASE WAS, IT IS BELIEVED THAT THE VESSEL 

COLLISION WAS ANTE-MORTEM. RIGHT PECTORAL 

FLIPPER BROKEN AT INSERTION AND JAWS WERE 

SEPARATED, BOTH OF THESE ARE BELIEVED TO BE 

POST-MORTEM. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

BLUE WHALE EASTERN N PACIFIC 2020 9 3 UNIDENTIFIED FISHERY INTERACTION SANTA BARBARA CA NSI 

BLUE WHALE WITH HEALING LINEAR SCAR POSTERIOR 

TO DORSAL FIN THAT APPEARS TO HAVE BEEN CAUSED 

BY LARGE DIAMETER ROPE OR OTHER ENTANGLING 

MATERIAL. THERE ARE ALSO RAW ABRASIONS THE 

LENGTH OF THE CAUDAL PEDUNCLE AND ON THE 

ANTERIOR MARGIN OF THE DORSAL FIN, INDICATING 

THAT ENTANGLING MATERIAL SHIFTED TOWARDS THE 

BACK OF THE WHALE AT SOME POINT. ANOTHER, 

LARGER DIAMETER INDENTATION IS VISIBLE MID-BODY 

FROM UAV FOOTAGE, PRESUMABLY FROM THE SAME 

ENTANGLEMENT. WHALE WAS FREE-SWIMMING WITH NO 

GEAR ATTACHED, IN APPARENT GOOD HEALTH, DESPITE 

EVIDENCE OF A PREVIOUS CONSTRICTING 

ENTANGLEMENT. ASSIGNED NON-SERIOUS INJURY AS 

THE WHALE IS GEAR FREE AND IN APPARENT GOOD 

HEALTH. . 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 1 1 SHOOTING PIERCE WA DEAD FRESH CARCASS WITH EVIDENCE OF SHOOTING / GUNSHOT. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 1 1 VESSEL STRIKE PIERCE WA DEAD 

FRESH DEAD. VESSEL TRAUMA (SHARP AND BLUNT)8 

ROUGHLY PARERALL LACERATION/ IMPRESSIONS 

EXTENDING FOR L SIDE TIP OF NOSE DOWN TO BASE OF 

TAIL. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 1 14 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISHING LINE WOUND AROUND DORSAL REGION. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 1 14 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH SWOLLEN LEFT FLIPPER WHERE FISHING HOOK HAD BEEN LOCATED. EUTHANIZED IN REHAB CENTER. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 1 20 GILLNET FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH GILLNET ENTANGLEMENT INJURY AROUND NECK. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 1 28 HOOK AND LINE FISHERY SAN DIEGO CA SI HOOK IN BOTTOM JAW. TAKEN TO REHAB, TREATED AND RELEASED NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 1 HOOK AND LINE FISHERY SAN DIEGO CA SI LETHARGIC AND EMACIATED ANIMAL WITH FISHING HOOK AND LINE IN MOUTH. INITIALLY SEEN ALIVE. LATER FOUND DEAD WITH FISHING LINE AROUND NECK. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 2 1 HOOK AND LINE FISHERY LOS ANGELES CA SI ANIMAL WITH CIRCUMFERENTIAL WOUNDS AROUND NECK. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 3 SHOOTING SAN LUIS OBISPO CA SI LETHARGIC AND EMACIATED ANIMAL EUTHANIZED IN REHAB. NECROPSY PERFORMED, DETAILS ON LOCATION OF GUNSHOT INJURY NOT GIVEN. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 2 4 HOOK AND LINE FISHERY SAN DIEGO CA SI EMACIATED ANIMAL WITH HOOK IN LEFT LOWER JAW, REMOVED EASILY BY RESCUERS. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 14 HARASSMENT SAN DIEGO CA NSI 

SEA LION PUP ON BEACH BEING HARASSED BY PUBLIC, 

REPORTEDLY BEING TOUCHED AND PINCHED. TAKEN TO 

REHAB FACILITY, TREATED AND RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 15 HOOK AND LINE FISHERY SAN DIEGO CA SI FISH HOOK IN RIGHT SIDE OF LOWER LIP. ANIMAL TREATED IN REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 15 MARINE DEBRIS CLATSOP OR SI 

CIRCUMFERENTIAL, CONSTRICTING WOUND AROUND 

NECK, POSSIBLY FROM PACKING BAND MATERIAL. NO 

RESCUE EFFORT INITIATED. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 2 16 MARINE DEBRIS CLATSOP OR SI 

CIRCUMFERENTIAL WOUND AROUND NECK FROM 

UNKNOWN MATERIAL. MATERIAL CUTTING INTO SKIN, 

SUBDERMAL LAYER EXPOSED. NO RESCUE EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 2 16 HOOK AND LINE FISHERY CLATSOP OR SI CIRCUMFERENTIAL CONSTRICTING WOUND AROUND NECK FROM WHAT APPEARS TO BE SINGLE STRAND OF MONOFILAMENT LINE. NO RESCUE EFFORT. SI 

CALIFORNIA 

SEA LION U.S. 2016 2 16 MARINE DEBRIS CLATSOP OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 2 16 MARINE DEBRIS CLATSOP OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 2 18 HOOK AND LINE FISHERY LOS ANGELES CA SI CIRCUMFERENTIAL WOUND AROUND NECK FROM FISHING LINE. TREATED AT REHAB FACILITY AND RELEASED. NSI 

APPARENT BULLET ENTRY WOUND AT DORSAL 

CALIFORNIA 

SEA LION U.S. 2016 2 23 SHOOTING LINCOLN OR DEAD INSERSION OF RIGHT FRONT FLIPPER; RADIUS AND ULNA SHATTERED; SURROUNDING TISSUED DEAD 

HEMORRHAGED 

CALIFORNIA 

SEA LION U.S. 2016 2 24 HOOK AND LINE FISHERY SAN DIEGO CA SI EMACIATED ANIMAL WITH HOOK IN MOUTH. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 24 HOOK AND LINE FISHERY SAN DIEGO CA SI EMACIATED ANIMAL WITH HOOK IN MOUTH. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 24 OIL / TAR SAN LUIS OBISPO CA SI EMACIATED ANIMAL WITH LACERATION NEAR EYE AND OIL / TAR ON BODY. DIED IN REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 2 25 HOOK AND LINE FISHERY SAN DIEGO CA SI 

SEVERELY EMACIATED. MONOFILAMENT FISHING LINE 

WRAPPED AROUND FACE AND BEHIND EYES. SEVERE 

POOR BODY CONDITION RESULTING FROM 

ENTRAPMENT WITH FISHING TACKLE, AND 

GASTROESOPHAGEAL WOUNDS ASSOCIATED WITH 

INGESTED FISHING TACKLE FOREIGN BODIES WAS 

CONSIDERED TO BE THE PRIMARY CAUSE OF DEATH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 2 26 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 2 27 HOOK AND LINE FISHERY SAN DIEGO CA SI EMACIATED ANIMAL WITH FISHING HOOK IN CHEEK. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 2 28 HOOK AND LINE FISHERY ORANGE CA SI MALNOURISHED ANIMAL WITH FISHING LINE IN MOUTH. TREATED AND DIED IN REHAB FACILITY. NECROPSY PERFORMED. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 2 28 MARINE DEBRIS SAN LUIS OBISPO CA SI MALNOURISHED ANIMAL ENTANGLED IN MARINE DEBRIS. ANIMAL EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 7 VEHICLE COLLISION LOS ANGELES CA DEAD HIT BY CAR. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 12 OIL / TAR MONTEREY CA SI 

EMACIATED ANIMAL WITH SMALL PATCH OF TAR ON 

ABDOMEN TAKEN INTO REHAB FACILITY, TREATED AND 

RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 3 13 MARINE DEBRIS VENTURA CA SI 

ANIMAL DISENTANGLED FROM EITHER MARINE DEBRIS 

OR FISHING GEAR. ENTANGLING MATERIAL WAS NOT 

DESCRIBED BY RESPONDERS. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 3 15 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISED ANIMAL WITH FISHING LINE ENTANGLEMENT SCAR AROUND NECK. ANIMAL DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 16 SHOOTING OR DEAD 

SEVERAL SUSPICIOUS HOLES AND HEMORRHAGE IN 

THE BODY; SKULL TOTALLY EXPOSED; KIDNEYS AND 

LUNGS ABNORMAL; A SUBSTANTIAL AMOUNT OF 

CLOUDY, PINK-TINGED FLUID IN THORACIC CAVITY; THE 

ANIMAL HAD GOOD BODY CONDITION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 17 HOOK AND LINE FISHERY SAN DIEGO CA SI 

MALNOURISHED PUP WITH FISHING LINE IN MOUTH THAT 

WRAPS AROUND BODY AND FLIPPER WITH ONE HOOK IN 

FLIPPER AND TWO HOOKS IN MOUTH. HOOKS AND LINE 

REMOVED IN REHAB FACILITY, ANIMAL RELEASED. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 3 19 HOOK AND LINE FISHERY LOS ANGELES CA SI FISH HOOK IN LOWER JAW AND LIP OF MALNOURISHED ANIMAL. DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 23 HOOK AND LINE FISHERY SAN DIEGO CA SI ANIMAL WITH GOOD BODY CONDITION WITH HOOK IN MOUTH, TREATED IN REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 3 24 HOOK AND LINE FISHERY SAN DIEGO CA NSI HOOK IN LEFT FRONT FLIPPER, REMOVED AT REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2016 3 27 HOOK AND LINE FISHERY SAN DIEGO CA SI 3 HOOKS ON FLIPPERS, OIL/TAR PATCH ON EMACIATED ANIMAL. DIED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 27 MARINE DEBRIS SANTA CRUZ CA SI EMACIATED ANIMAL WITH PLASTIC IN ITS STOMACH. DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 28 HOOK AND LINE FISHERY SAN DIEGO CA NSI FISHING HOOK ON RIGHT SIDE OF FACE NEAR EYE, EMACIATED ANIMAL. TREATED IN REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 3 28 SHOOTING OR DEAD 

ENTRANCE/EXIT HOLES WITH ASSOCIATED BONE 

DAMAGE, HEMORRHAGE, AND BLOOD CLOTTING; 

HEMORRHAGE ALSO IN OTHER AREAS OF BODY AND 

JUST ANTERIOR TO HEART; INTESTINES TIGHTLY 

TWISTED; THE SEA LION HAD EXCELLENT BODY 

CONDITION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 3 31 HOOK AND LINE FISHERY LOS ANGELES CA SI HOOK REMOVED FROM MOUTH AND ANIMAL RELEASED ON THE BEACH. NO INFORMATION ON CONDITION OF ANIMAL. NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 1 MARINE DEBRIS LOS ANGELES CA SI 

ANIMAL WITH WOUND AROUND NECK FROM UNKNOWN 

CAUSE. TREATED AND RELEASED FROM REHAB 

FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 2 HOOK AND LINE FISHERY MONTEREY CA SI ANIMAL WITH FISHING LINE WRAPPED AROUND NECK, DIED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 4 (ODFW SUMMARY): ONE OF TEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED ANIMAL WITH FISH HOOKS IN HEAD AND FLIPPERS, DIED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 SHOOTING OR DEAD 

OCCIPITAL BROKEN WITH ASSOCIATED HEMORRHAGE; 

TRACKS AND VARIOUS AREAS OF EXTENSIVE 

HEMORRHAGE IN BODY; SOME ORGANS 

HEMORRHAGED; THE ANIMAL HAD EXCELLENT BODY 

CONDITION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 4 SHOOTING PACIFIC WA DEAD 

TRACKS WITH ASSOCIATED HOLES AND HEMORRHAGE 

IN BODY; TWO BROKEN RIBS; ABDOMINAL CAVITY FILLED 

WITH BLOODY FLUID; LIVER LOBE RUPTURED WITH CLOTTING; INTESTINES TWISTED; THE ANIMAL HAD 

EXCELLENT BODY CONDITION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 5 HOOK AND LINE FISHERY SAN DIEGO CA SI UNDERWEIGHT ANIMAL WITH HOOK IN FLIPPER. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 6 HOOK AND LINE FISHERY ORANGE CA SI FISHING LINE GOING DOWN THROAT. DIED IN REHAB. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 4 6 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH FISHING LINE GOING DOWN THROAT, SUSPECTED INGESTED FISH HOOK. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 11 (ODFW SUMMARY): ONE OF SIX CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 12 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH MONOFILAMENT AROUND HEAD TREATED IN REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 12 OIL / TAR SAN DIEGO CA SI ANIMAL WITH OIL / TAR ON VARIOUS BODY PARTS FOUND IN GARAGE. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 13 MARINE DEBRIS MONTEREY CA SI EMACIATED ANIMAL WITH GLASS FOUND IN STOMACH. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 15 MARINE DEBRIS CLALLAM OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA DEAD 

SECTION 120. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

WEEK OF APRIL 18 (ODFW SUMMARY): ONE OF 

THIRTEEN CA SEA LIONS TARGETED FOR REMOVAL 

THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA 

SECTION 120. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 18 SHOOTING CLATSOP OR DEAD 

TREMENDOUS AND EXTENSIVE HEMORRHAGE IN BODY, 

ESP. AT NECK AND SCAPULAE AREAS; PERICARDIUM 

AND MEDIAL LUNGS HEMORRHAGED; INTESTINES 

TWISTED; ABDOMINAL CAVITY MODERATELY FILLED 

WITH BLOODY FLUID 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF APRIL 23 (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 24 HOOK AND LINE FISHERY LOS ANGELES CA SI 

MALNOURISHED ANIMAL WITH FISHING ENTANGLEMENT, 

HOOK IN NOSTRIL; BACK AND CHEST HAVE HOOKS WITH 

FLIES AND SINKER. TREATED AND RELEASED FROM 

REHAB. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 24 SHOOTING SAN LUIS OBISPO CA SI ANIMAL EUTHANIZED IN REHAB. NECROPSY SHOWED EVIDENCE OF SHOOTING. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 4 28 HOOK AND LINE FISHERY SAN MATEO CA SI 

MODERATELY UNDERWEIGHT, SINGLE MONOFILAMENT 

LINE AROUND NECK, TISSUE HEALING AROUND LINE, 

TRAUMA TO RIGHT REAR FLIPPER WITH BONE EXPOSED. 

TREATED AND RELEASED FROM REHAB FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 4 30 MARINE DEBRIS CLALLAM OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 4 30 MARINE DEBRIS CLALLAM OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 4 30 SHOOTING PACIFIC WA DEAD 

EVIDENCE OF HOLES WITH ASSOCIATED TRACKS, 

CLOTTING, AND HEMORRHAGE; ADDITIONAL 

HEMORRHAGE IN VARIOUS AREAS OF THE BODY; 

INTESTINES TWISTED; THE ANIMAL HAD EXCELLENT 

BODY CONDITION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 2ND (ODFW SUMMARY): ONE OF NINE CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 4 HOOK AND LINE FISHERY MONTEREY CA SI FISHING LINE 'IN' MUZZLE AND LEFT FOREFLIPPER , TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 4 SHOOTING ORANGE CA SI PELLET REMOVED FROM HEAD DURING NECROPSY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 7 MARINE DEBRIS LOS ANGELES CA SI GASTRIC DILATION DUE TO INGESTION OF LATEX GLOVES. DIED IN REHAB, NECROPSIED. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE WEEK OF MAY 9TH (ODFW SUMMARY): ONE OF SEVEN CA SEA LIONS TARGETED FOR REMOVAL THAT WERE TRAPPED AND EUTHANIZED UNDER MMPA SECTION 120. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 9 SHOOTING TILLAMOOK OR DEAD 

SUSPICIOUS GASHES AND HOLES W/ASSOCIATED 

TRACKS, CLOTTING, AND/OR HEMORRHAGE; 

ADDITIONAL EXTENSIVE HEMORRHAGE IN VARIOUS 

AREAS OF BODY; ORGANS HEMORRHAGED; THREE 

BROKEN RIBS; INTESTINES TWISTED; THE ANIMAL HAD 

EXCELLENT BODY CONDITION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 13 MARINE DEBRIS SAN DIEGO CA SI ANIMAL HAD INGESTED A SOCK AND PLASTIC PARTS. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 14 HOOK AND LINE FISHERY SAN DIEGO CA SI 

ANIMAL WITH GOOD BODY WEIGHT RESCUED BECAUSE 

OF MONOFILAMENT LINE AROUND NECK. ALSO HAD A 

HOOK IN CHEST. TREATED AND RELEASED FROM REHAB 

FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 14 SHOOTING MENDOCINO CA SI RADIOGRAPHS OF EUTHANIZED ANIMAL SHOWED EVIDENCE OF METALLIC FRAGMENTS. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 15 SHOOTING SANTA CRUZ CA DEAD STRANDED ANIMAL WITH DORSAL GUNSHOT ENTRY WOUND AND VENTRAL EXIT WOUND. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 16 HOOK AND LINE FISHERY SANTA CRUZ CA SI FISHING LINE, HOOK AND LURE ENTANGLED AROUND REAR FLIPPERS OF EMACIATED ANIMAL. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 17 SHOOTING SANTA CRUZ CA DEAD 

MARINE MAMMAL CENTER RESPONDED AND SEA LION 

WAS DECEASED WHEN THEY ARRIVED TO THE BEACH. 

WAS OBSERVED HAVING TROUBLE BREATHING, HEAD 

THRUSTS AND POSSIBLE SEIZURES. FOUND SMALL 

CALIBER BULLET RESTING AGAINST OPPOSITE KIDNEY 

WHICH HAD HEMORRHAGE. GUNSHOT CAUSE OF 

DEATH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 19 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED SEIZURING ANIMAL WITH FISH HOOKS IN FRONT AND REAR FLIPPERS AND EARS. ANIMAL DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 20 GILLNET FISHERY ORANGE CA SI GILLNET WOUND AROUND NECK, TREATED AND RELEASED FROM REHAB FACILITY. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 5 23 SHOOTING SAN LUIS OBISPO CA SI 

GOOD BODY CONDITION, SUPERFICIAL LACERATIONS 

NEAR HEAD AND LEFT SIDE, ALERT BUT NOT ACTIVE, 

OBSERVED OVERNIGHT AND FOUND IN THE SAME 

LOCATION NEXT DAY. RADIOGRAPHS SHOWED 

BUCKSHOT SCATTERED THROUGHOUT CERVICAL 

REGION. ANIMAL TREATED AND RELEASED FROM REHAB 

FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 23 SHOOTING CLATSOP OR DEAD 

EVIDENCE OF HOLES AND TRACKING WOUNDS WITH 

ASSOCIATED HEMORRHAGE IN BODY; OTHER AREAS OF 

HEMORRHAGE/DAMAGE IN BODY/ORGANS; THORACIC 

CAVITY FILLED WITH BLOODY FLUID; SEA LION HAD 

EXCELLENT BODY CONDITION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 5 26 HOOK AND LINE FISHERY MONTEREY CA SI DARTING CAPTURE, MONOFILAMENT ENTANGLEMENT AROUND NECK, MILDLY UNDERWEIGHT. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 27 MARINE DEBRIS MONTEREY CA SI TWINE AROUND NECK, TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 31 HOOK AND LINE FISHERY SAN DIEGO CA SI 

FISHING LINE JUST IN FRONT OF SHOULDER BLADE 

JOINT. LACERATION APPROXIMATELY 3/4 WAY AROUND 

BODY WHERE LINE WAS. TREATED AT REHAB AND 

RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 5 31 SHOOTING OR DEAD 

SUSPICIOUS HOLES W/ASSOC. HEMORRHAGE; POSSIBLE 

EVIDENCE TRACK ASSOC. W/BLACKENED BLUBBER; 

THORACIC CAVITY FILLED WITH CLOUDY, PINK-TINGED 

FLUID; ODD HOLE W/GELATINOUS TISSUE IN LUNG; 

THORACIC L.N.'S ABNORMAL; KIDNEY DAMAGED AND 

HEMORRHAGIC 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 6 2 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 4 HOOK AND LINE FISHERY SAN DIEGO CA SI 

FISHING HOOK CAUGHT IN LOWER LEFT LIP WITH ~70 

CENTIMETER FISHING LINE AND 8 OUNCE WEIGHT STILL 

ATTACHED. AREA OUTSIDE OF THE MOUTH AROUND 

HOOK IS SWOLLEN; INSIDE THE MOUTH IS BLEEDING 

FROM HOOK WOUND. THIN WITH HIPS AND SPINE 

VISIBLE. GOOD HYDRATION/WETNESS AROUND THE 

EYES. ALERT AND ACTIVE. TREATED AND RELEASED 

FROM REHAB FACILITY. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 6 5 HOOK AND LINE FISHERY MARIN CA SI 

RESTRAND. MODERATELY UNDERWEIGHT, HEAD 

WEAVING, DISORIENTED. FULL CIRCUMFERENCE 

CERVICAL SCAR FROM PREVIOUS MONOFILAMENT 

ENTANGLEMENT. TAGGED ON BOTH FLIPPERS DURING 

PREVIOUS STRAND BECAUSE OF ENTANGLEMENT. 

EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 6 14 HOOK AND LINE FISHERY LOS ANGELES CA SI EMBEDDED MONOFILAMENT LINE NEAR EAR. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 15 HOOK AND LINE FISHERY MONTEREY CA SI EMACIATED ANIMAL, FISH HOOKS IN MOUTH. ANIMAL DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 6 15 HOOK AND LINE FISHERY SAN DIEGO CA SI FISHING HOOK IN PECTORAL RIGHT FLIPPER WITH LINE WRAPPED AROUND. OTHERWISE GOOD BODY CONDITION. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 15 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 16 HOOK AND LINE FISHERY SANTA CRUZ CA SI EMACIATED ANIMAL WITH MONOFILAMENT ENTANGLEMENT AROUND NECK. DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 6 17 GILLNET FISHERY SAN DIEGO CA SI 

GOOD BODY CONDITION. ENTANGED WITH GILL NET 

AROUND NECK CAUSING LARGE OPEN GASHES. 

TREATED AND RELEASED FROM REHAB FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 19 MARINE DEBRIS CLALLAM OR SI 

CIRCUMFERENTIAL ENTANGLEMENT AROUND NECK, 

CONSTRICTING, MATERIAL UNKNOWN. NO RESCUE 

EFFORT. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 6 22 HOOK AND LINE FISHERY SAN DIEGO CA SI FISH HOOK ON LOWER LEFT LIP/MOUTH AREA. HOOK REMOVED AND ANIMAL RELEASED ON SITE. NO INFORMATION ON BODY CONDITION. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 22 HOOK AND LINE FISHERY SAN DIEGO CA NSI FISH HOOK ON LEFT FRONT FLIPPER. HOOK REMOVED AND ANIMAL RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2016 6 22 HOOK AND LINE FISHERY SAN DIEGO CA NSI FISH HOOK ON RIGHT FRONT FLIPPER. FISH HOOK WAS REMOVED AND ANIMAL WAS RELEASED ON SITE NSI 

CALIFORNIA 

SEA LION U.S. 2016 7 2 HOOK AND LINE FISHERY SAN DIEGO CA SI MONOFILAMENT LINE WRAPPED AROUND ANIMAL'S NECK. ANIMAL GOOD WEIGHT, ACTIVE,ALERT. DIED IN REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 7 4 MARINE DEBRIS LOS ANGELES CA SI 

EMACIATED ANIMAL WITH CIRCUMFERENTIAL 

ENTANGLEMENT WOUND AROUND NECK; DIED IN REHAB 

FACILITY. ENTANGLING MATERIAL NOT KNOWN. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 4 SHOOTING MONTEREY CA SI 

MODERATELY UNDERWEIGHT ANIMAL WITH DISPLACED 

JAW. EUTHANIZED IN REHAB FACILITY. BULLET FOUND IN 

NECK UPON NECROPSY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 9 SCIENTIFIC RESEARCH SAN MIGUEL ISLAND CA DEAD PUP DIED DURING CAPTURE EFFORTS DUE TO ASPHYXIATION. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 17 HOOK AND LINE FISHERY SAN DIEGO CA SI ANIMAL CAUGHT AT BEACH, REMOVED THREE HOOKS FROM NECK, MOUTH AND BOTTOM OF LEFT FRONT FLIPPER. ANIMAL RELEASED AT SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2016 7 24 SHOOTING OR DEAD 

BULLET/PELLET ENTRANCE HOLE IN SKULL; VARIOUS 

AREAS OF HEMORRHAGE IN BODY; TWO 

APPROXIMATELY 9 CM DIAMETER HOLES FILLED WITH 

SAND IN BODY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 27 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD ANIMAL KILLED IN GEAR. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 28 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD ANIMAL KILLED IN GEAR. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 28 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD ANIMAL KILLED IN GEAR. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 7 29 HOOK AND LINE FISHERY SAN DIEGO CA NSI SUPERFICIAL ENTRY OF FISHING HOOK WITH LURE ON STOMACH. GOOD BODY CONDITION AND ATTITUDE. REMOVED HOOK AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2016 7 30 HOOK AND LINE FISHERY ORANGE CA SI FISHING LINE AROUND NECK, SMALL WOUNDS REAR FLIPPERS. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 7 31 HOOK AND LINE FISHERY SAN DIEGO CA NSI LARGE FISH HOOK THROUGH RIGHT FRONT FLIPPER. REMOVED HOOK AND RELEASED ON SITE. GOOD BODY CONDITION. NSI 

CALIFORNIA 

SEA LION U.S. 2016 8 1 SHOOTING LOS ANGELES CA SI 

FISHING ENTANGLEMENT AROUND HEAD; LIMITED 

RANGE OF MOTION IN JAW; 2 SHOTGUN PELLETS 

BETWEEN SHOULDERS. EUTHANIZED AT REHAB 

FACILITY. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 8 2 VESSEL STRIKE SAN DIEGO CA SI 

TRAUMA TO LEFT FRONT FLIPPER. APPROXIMATELY 

HALF OF THE TIP OF THE FLIPPER HAD BEEN SLICED 

OFF WITH BONE EXPOSED. DEHYDRATED, MILD 

TREMORS. SUSPECTED PROPELLER WOUND. ANIMAL 

EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 8 8 GILLNET FISHERY VENTURA CA DEAD ENTANGLED IN GILLNET AROUND NECK. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 8 24 SHOOTING CLATSOP OR DEAD 

BLOOD CLOTTING, EXTENSIVE HEMORRHAGE, AND 

SUSPICIOUS HOLES IN NECK; HEMORRHAGE IN HEAD 

AND BODY; URINE BLOODY; THE ANIMAL HAD GOOD 

BODY CONDITION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 8 24 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 8 28 MARINE DEBRIS LINCOLN OR SI PACKING BAND CUTTING DEEPLY INTO NECK OF ANIMAL. SI 

CALIFORNIA 

SEA LION U.S. 2016 9 1 HOOK AND LINE FISHERY SAN DIEGO CA SI FISHING LINE AROUND NECK, RIGHT ABOVE SHOULDERS. EMBEDDED WITH PUS AND LACERATIONS. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 9 11 VESSEL STRIKE ORANGE CA SI 

ANIMAL HAS PROP STRIKES ACROSS MID SECTION. 

JUMPED INTO HARBOR PATROL BOAT AND ALLOWED 

TEAM TO NET WITH NO FIGHTING. WALKED INTO CAGE. 

PREVIOUSLY RELEASED TWICE BY PMMC. ON 7/21/16 AT 

CHANNEL ISLANDS AT 137.8 POUNDS. LOST 27.8 POUNDS 

IN 52 DAYS. TRANSFERRED TO PUBLIC DISPLAY 

FACILITY. 

CAPTIVITY 

CALIFORNIA 

SEA LION U.S. 2016 9 12 MARINE DEBRIS MONTEREY CA SI 

MILDLY UNDERWEIGHT ANIMAL WITH ENTANGLEMENT 

AROUND NECK TAKEN INTO REHAB, TREATED AND 

RELEASED. NO INFORMATION ON ENTANGLING 

MATERIAL. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 9 12 HOOK AND LINE FISHERY SAN DIEGO CA SI MONOFILAMENT LINE PREVIOUSLY AROUND NECK. UPON RESCUE, LINE WAS WRAPPED AROUND FLIPPER TAG. RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2016 9 12 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 9 13 GILLNET FISHERY SAN DIEGO CA SI 

GILL NET EMBEDDED/ENTANGLED AROUND NECK. GOOD 

WEIGHT, ACTIVE, ALERT, VOCAL. TREATED AND 

RELEASED FROM REHAB FACILITY. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 9 14 HOOK AND LINE FISHERY MONTEREY CA SI MONOFILAMENT AROUND NECK DEEP ENOUGH TO EXPOSE MUSCLE. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2016 9 20 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 9 21 HOOK AND LINE FISHERY ORANGE CA SI 

UNDERWEIGHT, FISH HOOK IN MOUTH RELEASED FROM 

PMMC ON 9/01/16 LOST 16.8 POUNDS IN 21 DAYS. 

ALTHOUGH ANIMAL WAS RELEASED FROM REHAB, 

WEIGHT LOSS WHILE IN REHAB CASTS DOUBT ON 

ABILITY OF ANIMAL TO SURVIVE POST-RELEASE. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 9 24 HOOK AND LINE FISHERY SAN DIEGO CA SI 

TWO INCH THREE HOOK FISHING LURE EMBEDDED IN 

THE TOP AND BOTTOM LIP OF THE OF THE ANIMAL 

MAKING HIM UNABLE TO OPEN HIS MOUTH. GOOD BODY 

CONDITION. ANIMAL WAS DE-HOOKED AND RELEASED 

ON SITE UNDER THE SUPERVISION OF A VETERINARIAN. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 10 2 SHOOTING PACIFIC OR DEAD 

EVIDENCE COLLECTED TO ENFORCEMENT, CLEAR 

EVIDENCE HOLE WITH TRACK, BONE DAMAGE, AND 

AREAS OF HEMORRHAGE IN HEAD AND/OR BODY 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 8 SHOOTING SANTA CRUZ CA SI 

BUCKSHOT IN HIS MUZZLE AND FACE AND A BULLET 

LODGED IN HIS LEFT SHOULDER, EMACIATED. 

HARASSED BY PEOPLE ON THE BEACH, PETTING. 

EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 12 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 16 SCIENTIFIC RESEARCH SAN MATEO CA DEAD ANO NUEVO ISLAND. ASPHYXIATION RESULTING FROM CAPTURE ACTIVITIES. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 18 SHOOTING CLATSOP OR DEAD 

CLEAR EVIDENCE HOLE IN OCCIPITAL BONE, VARIOUS 

AREAS OF HEMORRHAGE AND SUSPICIOUS HOLES IN 

ANIMAL, INCLUDING ABDOMEN 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 24 MARINE DEBRIS SAN DIEGO CA SI 

ACTIVE ANIMAL WITH GOOD BODY CONDITION HAD A 

PAIR OF SWIM GOGGLES AROUND MIDSECTION OF 

BODY. GOGGLES REMOVED AND ANIMAL RELEASED ON 

SITE. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 10 26 HOOK AND LINE FISHERY SAN DIEGO CA SI 

ANIMAL THAT HAD STRANDED MULTIPLE TIMES WITH 

FISH HOOK IN LEFT SIDE OF MOUTH AND IN LEFT REAR 

FLIPPER. VERY THIN BODY. TREATED AT REHAB 

FACILITY, BUT NO NOTES ON OUTCOME. TREATED AS 

SERIOUS INJURY, BASED ON MULTIPLE STRANDINGS 

AND BODY CONDITION. 

SI 

CALIFORNIA 

SEA LION U.S. 2016 10 27 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 28 VESSEL STRIKE MARIN CA SI EMACIATED. BLUNT FORCE TRAUMA TO PELVIS DUE TO BOAT STRIKE. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 28 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 10 28 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 29 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL CAPTURED IN NET. RELEASED ALIVE AFTER BEING BROUGHT ON BOARD. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 10 29 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 10 31 MARINE DEBRIS MONTEREY CA SI 

EMACIATED, ENTANGLEMENT CUTTING IN AROUND 

SHOULDERS. EUTHANIZED IN REHAB FACILITY. INITIALLY 

IDENTIFIED AS FISHERY INTERACTION, BUT TYPE OF 

ENTANGLING MATERIAL WAS NOT IDENTIFIED. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 3 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 5 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 7 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 7 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 7 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 9 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 10 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 11 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 14 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 14 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 14 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 14 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 14 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 15 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 16 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 16 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 16 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 16 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 16 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 11 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2016 11 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 18 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 18 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 18 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 18 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2016 11 18 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 12 3 GILLNET FISHERY SAN DIEGO CA SI 

GILL NET DEEPLY EMBEDDED AROUND NECK. BODY 

CONDITION GOOD, HYDRATION LEVEL GOOD. TREATED 

AT REHAB FACILITY AND RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2016 12 4 SHOOTING CLATSOP OR DEAD 

EVIDENCE HOLE AND FRACTURES IN SKULL W/ASSOC. 

HEMORRHAGE, AS WELL AS PALATE, SNOUT, AND 

TOOTH DAMAGE 

DEAD 

SUSPICIOUS 1-CM DIA. HOLE THROUGH SKIN AT DORSAL 

CALIFORNIA 

SEA LION U.S. 2016 12 12 SHOOTING CLATSOP OR DEAD SNOUT, WITH SNOUT SHATTERED; SIMILAR HOLE AT MANDIBLE; DEEP HEMORRHAGE IN VARIOUS AREAS OF DEAD 

BODY 

CALIFORNIA 

SEA LION U.S. 2016 12 14 SHOOTING CLATSOP OR DEAD 

SNOUT SHATTERED AND ADDITIONAL MANDIBULAR 

DAMAGE; SOME HEMORRHAGE IN BODY; THE SEA LION 

HAD EXCELLENT BODY CONDITION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2016 12 18 CATCH SHARES BOTTOM TRAWL OFFSHORE WA NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2016 12 28 

UNIDENTIFIED 

HUMAN 

INTERACTION 

KING WA DEAD CARCASS FOUND WITH ROPE AROUND IT. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 1 4 SHOOTING MONTEREY CA SI 

UNDERWEIGHT AND LETHARGIC ANIMAL. PRE-MORTEM 

RADIOGRAPHS SHOWED BUCKSHOT IN CERVICAL SPINE. 

EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 1 6 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 1 14 HOOK AND LINE FISHERY ORANGE CA SI 

UNDERWEIGHT ANIMAL ASSOCIATED WITH FISHING LINE 

AND LURE. TREATED AND RELEASED. NO DETAILS GIVEN 

ON EXTENT OF INJURY ASSOCIATED WITH GEAR. 

TREATED AS SERIOUS INJURY DUE TO LACK OF 

DETAILS. 

SI 

CALIFORNIA 

SEA LION U.S. 2017 1 27 SCIENTIFIC RESEARCH VENTURA CA DEAD ANIMAL STARTLED DURING RESEARCH ACTIVITIES AND FELL OVER CLIFF. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 1 31 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 2 4 HOOK AND LINE FISHERY SAN DIEGO CA NSI 

MALE ADULT CALIFORNIA SEA LION HAD ABOUT AN 8 

INCH FISHING LURE ATTACHED TO HIS RIGHT FLIPPER. 

HE SEEMED TO HAVE GOOD BODY CONDITION. THE 

LURE WAS SUCCESSFULLY REMOVED AND THE ANIMAL 

WAS RELEASED ON SITE. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 2 9 HOOK AND LINE FISHERY SAN DIEGO CA SI 

ANIMAL WITH GOOD BODY CONDITION AND A TREBLE 

HOOK IN LEFT CHEEK AND LURE AND HOOK IN LOWER 

RIGHT JAW. ANIMAL TREATED AND RELEASED FROM 

REHAB FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 2 13 MARINE DEBRIS SAN DIEGO CA SI 

ANIMAL IN GOOD BODY CONDITION HAD RUBBER 

GASKET AROUND HEAD LOCATED BEHIND EARS AND 

UNDER CHIN. REMOVED GASKET AND RELEASED ON 

SITE. RUBBER GASKET APPROXIMATELY 8 INCHES IN 

DIAMETER. BEFORE RESCUE, ANIMAL WAS SEEN 

FREQUENTLY IN ORANGE COUNTY BY PACIFIC MARINE 

MAMMAL CENTER AS WELL AS SAN DIEGO. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 2 14 SHOOTING LINCOLN OR DEAD DEAD ANIMAL WITH LARGE CALIBER COPPER BULLET BULLET FOUND IN CAUDAL LUMBAR AREA. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 2 22 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE 

CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 2 25 HOOK AND LINE FISHERY LOS ANGELES CA SI WOUND AROUND NECK DUE TO MONOFILAMENT LINE AROUND NECK. ANIMAL TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 3 17 SHOOTING SOLANO CA SI GUNSHOT TRAUMA, BLIND ANIMAL. DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 3 20 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 3 20 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 3 22 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2017 3 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA SI MONOFILAMENT LINE REMOVED FROM ANIMAL IN GOOD BODY CONDITION. NSI 

CALIFORNIA 

SEA LION U.S. 2017 3 31 SHOOTING ORANGE CA SI 

ANIMAL SHOT WITH ARROW THROUGH NECK. MEMBERS 

OF PUBLIC / FISHERMEN REMOVED ARROW FROM 

ANIMAL, WHICH THEN DEPARTED SCENE. EXTENT OF 

INJURY UNKNOWN, CONSIDERED SERIOUS INJURY. 

SI 

CALIFORNIA 

SEA LION U.S. 2017 4 9 MARINE DEBRIS LOS ANGELES CA SI ANIMAL INGESTED AN UNKNOWN MATERIAL, EUTHANIZED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 10 VEHICLE COLLISION ORANGE CA SI PREGNANT FEMALE HIT BY CAR, EUTHANIZED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 15 NEARSHORE HOOK AND LINE OFFSHORE CA SI ANIMAL GRABBED GEAR WITH 7 HOOKS ATTACHED AND DEPARTED TRAILING GEAR. OBSERVER PROGRAM. SI 

CALIFORNIA 

SEA LION U.S. 2017 4 16 HOOK AND LINE FISHERY ORANGE CA SI FISH HOOKS IN FLIPPER AND MOUTH. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 4 19 SHOOTING ORANGE CA SI ANIMAL SHOT IN RIGHT SHOULDER. EUTHANIZED AT REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 4 19 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 20 SHOOTING CLATSOP OR DEAD 

ANIMAL WITH TREMENDOUS HEMORRHAGE AT HEAD 

AND NECK, WITH APPARENT BULLET EXIT HOLE IN 

ABDOMEN. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 21 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 21 HOOK AND LINE FISHERY SAN DIEGO CA SI LETHARGIC ANIMAL WITH FISHING LINE AROUND FLIPPER AND POSSIBLE INGESTED FISHING HOOK. ANIMAL TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 4 24 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH FISHING HOOK AND LINE AROUND FLIPPER. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 4 27 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 3 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 4 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 4 HOOK AND LINE FISHERY MONTEREY CA SI MONOFILAMENT LINE AROUND FISHING NECK. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 4 MARINE DEBRIS SAN LUIS OBISPO CA SI MEMBER OF PUBLIC DISENTANGLED ANIMAL FROM UNKNOWN CONSTRICTING MATERLAL. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 7 GILLNET FISHERY LOS ANGELES CA SI ANIMAL WITH GILLNET WOUND TAKEN INTO REHAB FACILITY, TREATED AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 10 MARINE DEBRIS LOS ANGELES CA SI INGESTED HARD PLASTIC TRASH. EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 10 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 10 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 5 11 MARINE DEBRIS LOS ANGELES CA SI INGESTED FOREIGN BODY. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 16 SHOOTING MONTEREY CA SI GUNSHOT AND LACERATIONS. DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 16 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 17 MARINE DEBRIS LOS ANGELES CA SI WOODEN BLOCK MATERIAL FOUND IN STOMACH. ANIMAL DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 17 MARINE DEBRIS MONTEREY CA SI PACKING STRAP ENTANGLEMENT. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 17 HOOK AND LINE FISHERY SANTA BARBARA CA DEAD FISHING LINE AROUND HEAD AND NECK. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 17 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 5 18 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH FISH HOOKS IN CHEST, HIP, AND REAR FLIPPER. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 22 MARINE DEBRIS LINCOLN OR SI 

LARGE CONSTRICTING INJURY AROUND NECK WITH 

PROTRUDING TISSUE. ANIMAL WAS NOT PRESENT NEXT 

DAY. 

SI 

CALIFORNIA 

SEA LION U.S. 2017 5 23 MARINE DEBRIS SAN DIEGO CA SI 

BALLOON FOUND IN FECAL MATERIAL OF 

UNDERWEIGHT, LETHARGIC ANIMAL. TREATED AT 

REHAB AND RLEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 26 HOOK AND LINE FISHERY LOS ANGELES CA SI FISH HOOK IN LIP AND REAR FLIPPER. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 28 HOOK AND LINE FISHERY SAN DIEGO CA SI FISHING LINE AROUND NECK. SWOLLEN FACE ON BOTH SIDES FROM STING RAY BARB INJURY FOUND DURING SURGERY. EUTHANIZED IN REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 5 28 SHOOTING LOS ANGELES CA SI 

BULLET WOUND ACROSS NOSE AND EYE, SECOND 

BULLET IN NECK. TREATED AND RELEASED FROM 

REHAB FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 28 HOOK AND LINE FISHERY LINCOLN OR SI SALMON FLASHER LURE AND SEVERAL FEET OF LINE HANGING OUT OF MOUTH. TRAUMA EVIDENT AT LEFT SIDE OF MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2017 5 29 HOOK AND LINE FISHERY ORANGE CA NSI FISH HOOK IN BACK. PUBLIC FEEDING AND HOLDING ANIMAL. TREATED AT REHAB AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 29 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA NSI 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND 

ANIMAL EXITED VESSEL UNDER ITS OWN POWER. 

OBSERVER PROGRAM. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 5 31 MARINE DEBRIS LOS ANGELES CA SI GASTRIC IMPACTION WITH INGESTED PLASTIC AND ROCKS. ANIMAL DIED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 1 MARINE DEBRIS LOS ANGELES CA SI ANIMAL INGESTED METALLIC FOIL MATERIAL. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 3 SHOOTING LOS ANGELES CA SI 

PELLET LODGED BEHIND RIGHT EYE INSIDE SKULL 

DETERMINED VIA RADIOGRAPH. NO DETAILS ON FINAL 

OUTCOME OF CASE, ASSIGNED AS SERIOUS INJURY. 

SI 

CALIFORNIA 

SEA LION U.S. 2017 6 4 SHOOTING LOS ANGELES CA SI 

ANIMAL WITH PELLET INSIDE HEAD AND MISSING EYE 

TREATED AT REHAB AND TRANSFERRED TO PUBLIC 

DISPLAY FACILITY 

CAPTIVITY 

CALIFORNIA 

SEA LION U.S. 2017 6 6 SHOOTING CLALLAM WA SI 

CARCASS AND SKELETION COLLECTED FOR SCIENTIFIC 

RESEARCH. A CROSSBOLT ARROW WAS FOUND IN THE 

THORACIC CAVITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 6 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CA HALIBUT AND 

CALIFORNIA 

SEA LION U.S. 2017 6 7 WHITE SEABASS SET GILLNET VENTURA CA DEAD OBSERVER PROGRAM DEAD 

FISHERY 

CALIFORNIA 

SEA LION U.S. 2017 6 7 SHOOTING SAN LUIS OBISPO CA SI MALNOURISHED ANIMAL WITH GUNSHOT WOUND TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 6 7 HOOK AND LINE FISHERY ORANGE CA SI ANIMAL WITH SEIZURES CAPTURED WITH FISH HOOK IN MOUTH. TREATED AND RELEASED FROM REHAB FACILITY. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 6 9 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 9 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 15 SHOOTING LOS ANGELES CA SI ANIMAL WITH PELLET SHOTS AND A BRAIN HEMORRHAGE EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 16 MARINE DEBRIS LOS ANGELES CA SI 

MARINE DEBRIS INGESTION AND DOMOIC ACID 

TOXICITY. ANIMAL CHASING MEMBERS OF PUBLIC. 

EUTHANIZED AT REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 23 SHOOTING LOS ANGELES CA SI 

HUMAN INTERACTION WITH GUNSHOT; SPINAL 

PERFORATION BETWEEN APPARENT ENTRY WOUND 

AND BULLET. EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 6 24 MARINE DEBRIS MONTEREY CA SI 

MALNOURISHED ANIMAL WITH GREEN NYLON ROPE 

AROUND NECK, BUT NOT EMBEDDED IN TISSUE. 

EUTHANIZED IN REHAB DUE TO RENAL FAILURE. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 7 1 HOOK AND LINE FISHERY SAN DIEGO CA SI 

ANIMAL WAS ENTANGLED IN FISHING LINE WITH ONE 

LARGE HOOK IN HIS NECK AND ONE LARGE HOOK IN HIS 

LOWER JAW. EXCELLENT BODY CONDITION. TREATED IN 

REHAB FACILITY AND RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 7 6 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 7 7 HOOK AND LINE FISHERY SANTA BARBARA CA SI TWO FISH HOOKS REMOVED FROM MOUTH OF ANIMAL. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 7 8 HOOK AND LINE FISHERY SAN LUIS OBISPO CA SI MALNOURISHED ANIMAL WITH MONOFILAMENT LINE ENTANGLED AROUND THE HEAD AND EARS. SI 

CALIFORNIA 

SEA LION U.S. 2017 7 18 HOOK AND LINE FISHERY SAN DIEGO CA SI 

ANIMAL WITH MONOFILAMENT LINE WRAPPED AROUND 

HIS NECK ABOUT 5 CENTIMETERS FROM HIS 

FOREFLIPPERS, CAUSING LACERATIONS. TREATED AND 

RELEASED FROM REHAB FACILITY. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 7 19 MARINE DEBRIS LOS ANGELES CA SI 

CIRCUMFERENTIAL WOUND AROUND NECK. 

ENTANGLING MATERIAL UNKNOWN. TREATED AND 

RELEASED FROM REHAB FACILITY. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 7 26 HOOK AND LINE FISHERY SAN MATEO CA SI MALNOURISHED ANIMAL WITH FISHING HOOK EMBEDDED IN MAXILLARY BUCCAL MUCOSA. EUTHANIZED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 7 26 HOOK AND LINE FISHERY SANTA CRUZ CA SI ONE TO TWO-INCH FISH HOOK WITH RED/YELLOW FEATHERS FOUND IN PYLORIC REGION OF STOMACH. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 8 SHOOTING SAN MATEO CA SI GUNSHOT TRAUMA TO JAW. EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 8 SHOOTING SAN DIEGO CA DEAD 

FRESH DEAD ANIMAL WITH ENTANGLEMENT INJURY 

AROUND NECK AND CONFIRMED (VIA X-RAY) BULLET 

AND SEVERE SKULL FRACTURES. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 8 GILLNET FISHERY SAN DIEGO CA DEAD FISHERY INTERACTION INDICATED BY LINEAR ABRASIONS AROUND BODY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 11 HOOK AND LINE FISHERY LOS ANGELES CA SI FISH HOOK IN LIP. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 8 15 HOOK AND LINE FISHERY MONTEREY CA SI EMACIATED, ALERT BUT NOT ACTIVE, FISH HOOK AND LINE FELL OUT OF CORNER OF MOUTH DURING RESCUE. TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 8 15 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 18 VESSEL STRIKE SAN DIEGO CA DEAD ANIMAL REPORTED WITH PROPELLER WOUNDS UNDERNEATH A DOCK. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 18 SCIENTIFIC RESEARCH SAN DIEGO CA DEAD ANIMAL REMOTELY SEDATED AND DROWNED. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 8 23 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 8 23 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 8 23 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 8 23 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 8 23 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 9 3 HOOK AND LINE FISHERY SAN DIEGO CA SI 

HEALTHY ANIMAL WITH MONOFILAMENT LINE WRAPPED 

AROUND NECK, CUTTING INTO ANIMAL APPROXIMATELY 

1-INCH DEEP. 3 FEET OF TRAILING LINE. TREATED AT 

REHAB FACILITY AND RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 9 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 12 HOOK AND LINE FISHERY LOS ANGELES CA SI FISH HOOK IN STOMACH. EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 17 VESSEL STRIKE VENTURA CA DEAD CARCASS NEAR ANACAPA ISLAND WITH EVIDENCE OF A PROPELLER STRIKE. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 17 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 20 SHOOTING LOS ANGELES CA SI 

LIVE ANIMAL BROUGHT TO REHAB CENTER WHERE 

RADIOGRAPHIC EVIDENCE INDICATED A BULLET. 

EUTHANIZED IN REHAB FACILITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 22 HOOK AND LINE FISHERY SANTA BARBARA CA SI MONOFILAMENT LINE AROUND NECK. ANIMAL DIED IN REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 22 HOOK AND LINE FISHERY KITSAP WA SI LURE FLASHER COMING OUT OF MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2017 9 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA DEAD

 0.3 CM WIDE TAN/YELLOW ROPE WRAPPED TWICE 

AROUND IT'S NECK, CREATING A SEVERE 

CIRCUMFERENTIAL LACERATION EXTENDING INTO 

MUSCLE LAYER, WITH ASSOCIATED POOL OF BLOOD 

UNDERNEATH VENTRAL SIDE OF LACERATION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 28 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 9 29 HOOK AND LINE FISHERY LOS ANGELES CA SI RECORDS INDICATE ANIMAL DIED ON ITS WAY TO REHAB FACILITY WITH A HOOK AND LINE FISHERY INJURY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 9 29 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 1 HOOK AND LINE FISHERY MARIN CA SI DETAILS LACKING, BUT A SEA LION WITH A HOOK AND LINE INJURY WAS TREATED AT A REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 10 4 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 5 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 6 SHOOTING SAN DIEGO CA SI ANIMAL WITH GUNSHOT WOUND EUTHANIZED AT REHAB FACILITY. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 9 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 14 BLUNT FORCE TRAUMA MONTEREY CA SI ANIMAL DESCRIBED WITH INJURIES CONSISTENT WITH BEING CLUBBED TO DEATH WAS EUTHANIZED IN REHAB FACILITY DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 16 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 20 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 23 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 10 23 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 23 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 24 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 24 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 24 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 24 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 24 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 27 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 28 SHOOTING KITSAP WA DEAD 

RADIOGRAPH SHOWED HALF A DOZEN PELLETS IN 

NECK. C1 AND C2 VERTEBRAE WERE FRACTURED. 

SEVERAL WERE RETRIEVED ON NECROPSY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 31 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND 

ANIMAL EXITED VESSEL UNDER ITS OWN POWER. 

OBSERVER PROGRAM. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 10 31 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 10 31 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 11 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA SI 

ANIMAL OBSERVED WITH CIRCUMFERENTIAL FISHERY 

ENTANGLEMENT AROUND NECK. RESCUE ATTEMPT WAS 

MADE, ANIMAL DARTED DUE TO SIZE AND LOCATION, 

BUT NOT SEEN AGAIN. 

SI 

CALIFORNIA 

SEA LION U.S. 2017 11 5 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 6 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 9 GILLNET FISHERY LOS ANGELES CA SI 

DETAILS LACKING ON AN ANIMAL DESCRIBED AS HAVING 

A GILLNET INJURY. TREATED AT REHAB FACILITY AND 

RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 11 9 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 9 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 9 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 9 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 10 SHOOTING LANE OR DEAD 

GUNSHOT WOUNDS ON RIGHT SIDE OF BODY; THROUGH 

FRONT FLIPPER, ENTRY AND EXIT WOUNDS THROUGH 

ABDOMEN. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR SI 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND 

ANIMAL EXITED VESSEL UNDER ITS OWN POWER. 

OBSERVER PROGRAM. 

NSI 

CALIFORNIA 

SEA LION U.S. 2017 11 18 SHOOTING CLATSOP OR DEAD 

THE SNOUT WAS CUT OFF; OBVIOUS BULLET HOLE ON 

VENTRAL BODY BY FOREFLIPPER (POSSIBLE EXIT 

HOLE); THE SEA LION HAD EXCELLENT BODY CONDITION 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 18 SHOOTING CLATSOP OR DEAD TWO OBVIOUS BULLET HOLES IN THE ABDOMEN. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 25 SHOOTING LOS ANGELES CA SI RADIOGRAPH SHOWED BULLET IN NECK. ANIMAL TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 11 25 CATCH SHARES BOTTOM TRAWL OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 28 SHOOTING PACIFIC WA DEAD ANIMAL WITH GOOD BODY CONDITION AND OBVIOUS BULLET ENTRY INJURY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2017 11 29 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2017 11 29 RIDGEBACK PRAWN BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2017 11 29 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2017 12 1 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD MORTALITY SELF-REPORT FROM VESSEL OPERATOR. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 12 6 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD MORTALITY SELF-REPORT FROM VESSEL OPERATOR. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 12 10 HOOK AND LINE FISHERY SAN DIEGO CA SI ANIMAL HAD FISH HOOKS IN THE RIGHT SIDE OF MOUTH AND UPPER FRONT FLIPPER. TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2017 12 10 MARINE DEBRIS PACIFIC WA DEAD PLASTIC BAG FOUND IN STOMACH OF CARCASS THAT HAD BEEN SCAVENGED ON BEACH BY BALD EAGLES. DEAD 

SUBCUTANEOUS BULLET FOUND IN BLUBBER. CAUSE OF 

CALIFORNIA 

SEA LION U.S. 2017 12 10 SHOOTING LINCOLN OR NSI DEATH LISTED AS LEPTOSPIROSIS. STRANDING PROGRAM SAID BULLET WAS NOT A FACTOR IN CAUSE DEAD 

OF DEATH. 

CALIFORNIA 

SEA LION U.S. 2017 12 15 OIL / TAR SAN MATEO CA NSI ANIMAL WITH OIL / TAR AND A DORSAL PUNCTURE WOUND TREATED AT REHAB FACILITY AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2017 12 16 SHOOTING SANTA BARBARA CA SI LEAD PELLET (0.177 INCH CALIBER) UNDER SKIN BETWEEN EAR FLAPS. NO ASSOCIATED SKELETAL DAMAGE. ANIMAL DIED IN REHAB. DEAD 

CALIFORNIA 

SEA LION U.S. 2017 12 18 SHOOTING CLATSOP OR DEAD 

ANIMAL IN GOOD BODY CONDITION WITH OBVIOUS 

BULLET WOUND AT MID-ABDOMEN AND POSSIBLY 

THROUGH HEAD, BASED ON DAMAGE TO SKULL. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2017 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA CATCH SHARES U.S. 2017 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SEA LION BOTTOM TRAWL 

CALIFORNIA HOOK AND LINE EMACIATED ANIMAL WITH FISH HOOK IN UPPER RIGHT U.S. 2018 1 1 ORANGE CA SI SI 

SEA LION FISHERY LIP. OUTCOME UNKNOWN. 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND CALIFORNIA CATCH SHARES U.S. 2018 1 2 OFFSHORE OR NSI ANIMAL EXITED VESSEL UNDER ITS OWN POWER. NSI 

SEA LION BOTTOM TRAWL OBSERVER PROGRAM. 

CALIFORNIA HOOK AND LINE EMACIATED ANIMAL WITH FISH HOOK IN UPPER RIGHT U.S. 2018 1 9 SAN DIEGO CA SI SI 

SEA LION FISHERY LIP. OUTCOME UNKNOWN. 

CALIFORNIA U.S. 2018 1 15 SHOOTING KING WA DEAD SEA LION 

ANIMAL IN EXCELLENT BODY CONDITION WITH 

PENETRATING WOUND TO HEAD FOUND DEAD ON 

BEACH. MULTIPLE PELLETS / BULLETS FOUND IN HEAD 

AND NECK ON RADIOGRAPHS. DUE TO FRESHNESS 

SUSPECT THAT SEA LION WAS LETHALLY SHOT IN 

CLOSE PROXIMITY TO QUARTERMASTER HARBOR, LESS DEAD 

THEN 2 DAYS PRIOR TO INITIAL REPORT DATE. 

RECOVERED OF BULLET #1 WAS SUFFICIENT TO KILL 

THE SEA LION. OTHER PROJECTILE IS FROM PREVIOUS 

HUMAN INTERACTIONS AND APPEARS TO HAVE BEEN IN 

THE SEA LION FOR A WHILE NOT CONSIDERED PART OF 

THE CAUSE OF DEATH. 

UNDERWEIGHT ANIMAL WITH WHITE PACKING STRAP CALIFORNIA U.S. 2018 1 20 MARINE DEBRIS SONOMA CA SI WRAPPED LOOSELY AROUND NECK, STRANDED AND SI 

SEA LION RELEASED, LATER RESTRANDED. OUTCOME UNKNOWN. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 1 26 HARASSMENT MONTEREY CA SI 

UNAUTHORIZED PICKUP OF MALNOURISHED PUP - 

MATERNAL SEPARATION. REPORTING PARTY DROVE TO 

MONTEREY BAY AQUARIUM RESEARCH INSTITUTE WITH 

ANIMAL AND WAITED FOR TMMC TO PICK UP. FINAL 

OUTCOME UKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 1 30 RIDGEBACK PRAWN BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2018 1 30 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 6 SHOOTING SAN DIEGO CA SI 

LETHARGIC AND SLIGHTLY THIN. VERY WEAK. BULLET 

FOUND IN DIAGNOSTIC RADIOGRAPHS, LOCATED NEAR 

THE SPINE AT THE NECK, DORSALLY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 6 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 2 7 HOOK AND LINE FISHERY SAN DIEGO CA SI SEA LION WITH FISHING LURE IN THE LOWER RIGHT SIDE OF MOUTH. ATTEMPTED A RESCUE, BUT EVADED THE TEAM. SI 

CALIFORNIA 

SEA LION U.S. 2018 2 7 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 7 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 7 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 8 SHOOTING PIERCE WA DEAD 

PENETRATING WOUND IN CHEEK WITH TRACKING 

HEMORRHAGE. HEMORRHAGE TRACKED TO BULLET IN 

MUSCLE JUST ANTERIOR TO C4 VERTRABRAE. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 2 13 MARINE DEBRIS MARIN CA SI 

MARINE DEBRIS INGESTION; BUBBLE WRAP IN STOMACH 

AND DOMOIC ACID TOXICITY. ANIMAL ORIGINALLY 

STRANDED IN SAN LUIS OBISPO ON 1/7/18 AND 

RELEASED ON 1/26/18 AT CHIMNEY ROCK POINT REYES 

NATIONAL SEASHORE. ANIMAL WAS RESIGHTED AT 

DRAKES BEACH ON 2/13 AND RESTRANDED ON 2/17 IN 

POINT REYES NATIONAL SEASHORE. ANIMAL WAS 

EUTHANIZED. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 14 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 17 SHOOTING SAN DIEGO CA DEAD 

UNRESPONSIVE THIN AND LETHARGIC ANIMAL FOUND 

ON BEACH. BULLETS FOUND UPON X-RAY IN HIS LOWER 

RIGHT JAW. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 2 21 MARINE DEBRIS SAN DIEGO CA SI 

ANIMAL HAD A RUBBER BAND AROUND ITS MOUTH, 

SECURING THE MOUTH CLOSED. RUBBER BAND WAS 

REMOVED ON SITE AND THE ANIMAL WAS RELEASED 

IMMEDIATELY AFTER. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 3 9 SHOOTING GRAYS HARBOR WA DEAD 

PENETRATING PUNCTURE WOUNDS AT BOTH SIDES OF 

CHEST, ABLE TO TRACK AT LEAST ONE WOUND INTO 

CHEST CAVITY AND THROUGH LUNG. SMALL 1-2CM 

BULLET (PELLET) RECOVERED FROM INSIDE OF CHEST 

CAVITY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 3 12 OIL / TAR LOS ANGELES CA SI MALNOURISHED ANIMAL WITH OIL/TAR ON BODY. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2018 3 29 HOOK AND LINE FISHERY ORANGE CA SI 

EMACIATED AND DEHYDRATED ANIMAL WITH MULTIPLE 

FISH HOOKS. LOCATION OF HOOKS NOT REPORTED. 

OUTCOME UNKNOWN. BASED ON ANIMAL'S CONDITION, 

ASSUMPTION IS THAT HOOKS WERE LOCATED IN HEAD / 

MOUTH, POSSIBLY INTERFERING WITH FEEDING. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 4 4 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 10 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 4 10 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 11 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 13 HOOK AND LINE FISHERY SAN DIEGO CA SI 

FISHING LURE HANGING FROM MOUTH. APPEARS TO 

HAVE SWALLOWED HOOK. THIN. VERY ACTIVE AND 

AGGRESSIVE. .22 GAUGE BULLET FOUND ON X-RAY. 

LOCATED TO THE LEFT OF THE SPINE, MID-BODY, HALFWAY DOWN THE BODY IN LENGTH. TWO ANIMALS 

DISTURBED DURING RESCUE. NO DETAILS ON WHETHER 

FINAL CONDITION WAS DEAD OR RELEASED POSTTREATMENT. ASSUMED TO BE A SERIOUS INJURY BASED 

ON DETAILS PROVIDED. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 4 17 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 17 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 4 18 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 19 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 19 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 20 HOOK AND LINE FISHERY ORANGE CA SI FISH HOOK IN RIGHT SIDE OF MOUTH. ANIMAL EMACIATED AND DEHYDRATED. SI 

CALIFORNIA 

SEA LION U.S. 2018 4 21 SHOOTING CLATSOP OR DEAD 

ANIMAL WITH EXCELLENT BODY CONDITION WITH 

OBVIOUS HEMORRHAGE PATTERN ON HEAD AND NECK -

LIKELY SHOOTING. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 24 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2018 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 4 28 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED AND DEHYDRATED ANIMAL WITH FISH HOOK IN MOUTH. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2018 4 28 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 1 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 1 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 2 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 3 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD ANIMAL KILLED IN GEAR. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 3 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 5 3 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 3 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 9 HOOK AND LINE FISHERY LOS ANGELES CA SI 

MALNOURISHED ANIMAL DESCRIBED AS HAVING 

INTERACTED WITH HOOK AND LINE FISHERY. NO 

DETAILS ON INJURY TYPE OR SEVERITY, OR OUTCOME. 

ASSUMING HOOKS WERE IN OR NEAR MOUTH DUE TO 

CONDITION OF ANIMAL. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 5 9 SHOOTING PACIFIC WA DEAD BULLET RETRIEVED FROM A SEA LION WITH EXCELLENT BODY CONDITION. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 9 HOOK AND LINE FISHERY SAN DIEGO CA SI UNDERWEIGHT PUP WITH FISHING HOOK IN NOSE TRANSFERRED TO CAPTIVE DISPLAY FACILITY. CAPTIVITY 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 5 9 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 11 SHOOTING PACIFIC WA DEAD ANIMAL SHOT IN HEAD; BULLET/PELLET FRAGMENTS RETRIEVED. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 14 SHOOTING PACIFIC WA DEAD BULLET RECOVERED FROM A SEA LION WITH EXCELLENT BODY CONDITION. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 15 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 22 VESSEL STRIKE CLACKAMAS OR DEAD 

ANIMAL HAD PROPELLER CUTS ON LATERAL MID-BODY 

AND ONE CUT BEING QUITE DEEP AT THE 

FOREFLIPPER/FOREARM; THIS DEEP CUT WAS 

ASSOCIATED WITH BONE DAMAGE, INFECTION, AND 

NECROSIS AND IS LIKELY THE CUT THAT CONTRIBUTED 

TO THE SEA LION'S DEATH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 23 HOOK AND LINE FISHERY LOS ANGELES CA SI 

MALNOURISHED ANIMAL DESCRIBED AS HAVING 

INTERACTED WITH HOOK AND LINE FISHERY. NO 

DETAILS ON INJURY TYPE OR SEVERITY, OR OUTCOME. 

ASSUMING HOOKS WERE IN OR NEAR MOUTH DUE TO 

CONDITION OF ANIMAL. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 5 23 HOOK AND LINE FISHERY LOS ANGELES CA SI 

MALNOURISHED ANIMAL DESCRIBED AS HAVING 

INTERACTED WITH HOOK AND LINE FISHERY. NO 

DETAILS ON INJURY TYPE OR SEVERITY, OR OUTCOME. 

ASSUMING HOOKS WERE IN OR NEAR MOUTH DUE TO 

CONDITION OF ANIMAL. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 5 24 SHOOTING CLATSOP OR DEAD 

ANIMAL WITH EXTENSIVE HEMORRHAGE CLEARLY SHOT 

MID-ABDOMEN. ANIMAL ALSO HAD GILLNET IN THROAT, 

WHICH WAS PACKED WITH PINKISH REGURGITATION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 5 24 MARINE DEBRIS SANTA BARBARA CA SI ANIMAL ENTANGLED IN LINE OF UNKNOWN TYPE, TREATED AT REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2018 5 25 GILLNET FISHERY SAN DIEGO CA SI 

MONOFILAMENT NET AROUND NECK, TIGHTLY CUTTING 

INTO SKIN. 15 ANIMALS WERE DISTURBED DURING THE 

RESCUE. NO DETAILS ON OUTCOME. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 5 28 HOOK AND LINE FISHERY ORANGE CA NSI SUNKEN LEFT EYE, FISH HOOK IN CHEST AND LEFT REAR FLIPPER. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 5 31 HARASSMENT SAN DIEGO CA SI 

HUMAN-INDUCED ABANDONMENT. TEAM OBSERVED THE 

PUBLIC APPROACHING AND TOUCHING THE PUP ON 

5/31/18. ABANDONED NEONATAL PUP. DEEMED NONRELEASEABLE AND TRANSFERRED TO PUBLIC DISPLAY 

FACILITY. 

CAPTIVITY 

CALIFORNIA 

SEA LION U.S. 2018 6 1 HOOK AND LINE FISHERY SAN DIEGO CA NSI FISHING HOOK AND LINE IN LEFT FLIPPER, REMOVED AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2018 6 13 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH TREBLE HOOK IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2018 6 14 GILLNET FISHERY SAN LUIS OBISPO CA SI 

MALNOURISHED ANIMAL FOUND ON BEACH WITH GREEN 

NETTING AROUND NECK, PATIENT WAS LETHARGIC AND 

THIN WITH DIAGNOSED DOMOIC ACID TOXICITY. 

OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 6 18 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 6 21 SHOOTING SAN DIEGO CA SI 

EMACIATED, LETHARGIC. SUSPICIOUS WOUND ABOUT 

THE SIZE OF A HALF DOLLAR FOUND OVER RIGHT 

SHOULDER. GUNSHOT WOUND. BULLETS FOUND IN 

SKULL UPON XRAY PRIOR TO NECROPSY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 6 21 SCIENTIFIC RESEARCH OFFSHORE CA DEAD ANIMAL KILLED IN SCIENTIFIC RESEARCH TRAWL. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 6 25 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 6 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI 

ACTIVE LESION AROUND NECK SUGGESTING 

ENTANGLEMENT, LETHARGIC AND EMACIATED. NO 

OTHER DETAILS, OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 7 2 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA SI 

SURFERS DISTENTANGLED ANIMAL FROM GREEN 

NYLON NETTING. ONE SURFER WAS BITTEN. NO DETAILS 

ON ANIMAL'S CONDITION. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 7 5 VESSEL STRIKE MONTEREY CA DEAD POSSIBLE BOAT STRIKE - GASH ON BODY ABOVE RIGHT FLIPPER; BLOOD BY FLIPPER. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 7 6 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA SI 

ANIMAL HAD A GAFF IN HIS FACE. HE WAS POLE 

SEDATED, JUMPED IN THE WATER, AND SOMETIME 

DURING THE RESCUE EFFORTS THE GAFF FELL OFF. 

ANIMAL WAS RELEASED ON SITE. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 7 11 HOOK AND LINE FISHERY SAN DIEGO CA DEAD 

MONOFILAMENT FISHING LINE WAS WRAPPED AROUND 

THE NECK IN A SINGLE LOOP (NO LONG PIECES 

TRAILING) WITH AN ASSOCIATED LACERATION WHICH 

EXTENDS INTO THE MUSCLE LAYER. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 7 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA DEAD 

UNKNOWN FISHERY____MESSAGE CAME THROUGH TO 

NOAA WCR NMFS-LONG BEACH FROM PRIVATE CITIZEN. 

PHOTOS DETERMINED SPECIES, ESTIMATED LENGTH, 

AND HUMAN INTERACTION (LINE AROUND NECK). 

PHOTOS ATTACHED TO THIS RECORD.__ 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 7 16 VESSEL STRIKE VENTURA CA SI SEVERELY INJURED SEA LION WITH EXPOSED SKULL. INJURIES CONSISTENT WITH A VESSEL STRIKE. SI 

CALIFORNIA 

SEA LION U.S. 2018 7 19 GILLNET FISHERY SAN LUIS OBISPO CA SI 

PATIENT WAS FOUND WITH MONOFILAMENT NETTING 

CUTTING INTO NECK, PEOPLE SURROUNDING THE 

PATIENT ON THE BEACH, AND ANIMAL LETHARGIC. 

ENTANGLEMENT FILED AWAY AT TMMC. ANIMAL ALSO 

HAD DOMOIC ACID TOXICITY. NO DETAILS ON OUTCOME. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 7 19 VESSEL STRIKE ORANGE CA SI PROPELLER WOUND TO FACE, SHARK BITE ON RIGHT FLIPPER. NO DETAILS ON OUTCOME. SI 

CALIFORNIA 

SEA LION U.S. 2018 7 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA 

BARBARA CA SI ENTANGLEMENT SCAR AROUND HEAD, LOWER JAW AND TEETH MISSING. EUTHANIZED ON SITE. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 7 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

VENTURA CA SI 

ENTANGLED ANIMAL SEEN, ATTEMPTED CAPTURE 

FAILED BECAUSE ANIMAL SWAM AWAY. AMOUNT AND 

CONFIGURATION OF ENTANGLING GEAR UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 8 1 HOOK AND LINE FISHERY SAN DIEGO CA NSI 

FISHING HOOK EMBEDDED IN REAR LEFT FLIPPER. LINE 

EXTENDING FROM HOOK WRAPPED AROUND NATIONAL 

MARINE FISHERIES SERVICE TAG ON FRONT LEFT 

FLIPPER. TAG REMOVED DUE TO ENTANGLEMENT AND 

HOOK REMOVED. RETAGGED AND RELEASED ON SITE. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 8 1 HARASSMENT MONTEREY CA SI 

_HARASSMENT_MALNUTRITION, 

LEPTOSPIROSIS__PATIENT FOUND LETHARGIC, 

UNRESPONSIVE, AND IN A BAD LOCATION. REPORTED 

THAT THE PATIENT WAS SHOT BY A PAINTBALL GUN AND 

A PASSERBY WAS FLICKING CIGARETTES AT 

PATIENT._LEPTOSPIROSIS_ 

SI 

CALIFORNIA 

SEA LION U.S. 2018 8 2 GILLNET FISHERY SAN FRANCISCO CA DEAD SCAR AROUND NECK FROM PREVIOUS ENTANGLEMENT. NO MONOFILAMENT PRESENT WHEN SCAR WAS EXAMINED. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 8 2 HOOK AND LINE FISHERY SANTA CRUZ CA SI EMACIATED AND LETHARGIC ANIMAL FOUND WITH HOOK IN THE MOUTH AND IN THE HIND FLIPPER. SI 

CALIFORNIA 

SEA LION U.S. 2018 8 5 MARINE DEBRIS SAN LUIS OBISPO CA SI 

PATIENT WAS FOUND WITH ENTANGLEMENT AROUND 

NECK, POTENTIALLY A PACKING STRAP/ ZIP TIE. PATIENT 

WAS NOTED TO BE LETHARGIC AND DRINKING FROM 

TIDEPOOLS WITH PEOPLE AND DOGS PRESENT. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 8 6 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 9 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 10 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA SI MALNOURISHED ANIMAL FOUND WITH LARGE ENTANGLEMENT SCAR AROUND NECK. SI 

CALIFORNIA 

SEA LION U.S. 2018 8 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI MALNOURISED ANIMAL WITH ENTANGLEMENT WOUND ON NECK. SI 

CALIFORNIA 

SEA LION U.S. 2018 8 14 SHOOTING MENDOCINO CA DEAD BULLET HOLE IN SIDE OF ANIMAL AND ASSOCIATED INJURIES TO INTERNAL ORGANS. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 15 SHOOTING SAN DIEGO CA SI 

COMATOSE, FOAMING AT THE MOUTH. GOOD WEIGHT 

AND BODY CONDITION. REPORTED BY LIFEGUARDS 

THAT SHE CAME ONTO THE BEACH AT 7PM ON 8/14/2018. 

RESCUED AT 9AM ON 8/15/2018. BULLET FOUND IN SKULL 

ON X-RAY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 15 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 18 HOOK AND LINE FISHERY SANTA BARBARA CA SI SEA LION ENTANGLED IN LINE SEDATED AND DISENTANGLED. NO FURTHER DETAILS. NSI 

CALIFORNIA 

SEA LION U.S. 2018 8 21 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE OR NSI 

DETERRENCE USED TO SCARE OFF 5 SEA LIONS 

FEEDING ON CATCH. NO INJURIES REPORTED. 

OBSERVER PROGRAM 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 8 24 HOOK AND LINE FISHERY SAN DIEGO CA SI MONOFILAMENT LINE WRAPPED AROUND NECK. LINE REMOVED AND ANIMAL RELEASED ON SITE. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 8 24 MARINE DEBRIS SAN DIEGO CA SI 

THIN ROPE EMBEDDED AROUND NECK. ROPE WAS 

REMOVED AND ANIMAL RELEASED ON SITE. GOOD BODY 

CONDITION. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 8 24 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 8 31 SHOOTING LANE OR DEAD 

HOLE IN RIGHT ABDOMEN APPEARS TO BE A BULLET 

EXIT WOUND; END OF RIGHT FRONT FLIPPER APPEARS 

TORN AS IF SHOT OFF; TOP OF HEAD "SCALPED"; SKULL 

EXPOSED TO BARE BONE. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 9 4 SHOOTING LOS ANGELES CA NSI SHOT WITH PAINT BALL GUN. NO DETAILS ON ANIMAL CONDITION. NSI 

CALIFORNIA 

SEA LION U.S. 2018 9 8 HOOK AND LINE FISHERY SANTA CRUZ CA SI 

PATIENT NOTED TO HAVE FISHING NET HANGING OUT 

OF MOUTH WITH A HOOK EMBEDDED IN THE MOUTH. 

THE PATIENT WAS ALSO LETHARGIC, EMACIATED, AND 

UNRESPONSIVE AT THE TIME OF RESCUE. OUTCOME 

UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 9 10 GILLNET FISHERY SAN MATEO CA DEAD 

ENTANGLED AROUND THE NECK. SKULL, VIBRISSAE, 

BACULUM AND ENTANGLEMENT COLLECTED FOR CAS 

ARCHIVES. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 9 11 GILLNET FISHERY SAN LUIS OBISPO CA SI 

PATIENT FOUND WITH MONOFILAMENT NETTING 

AROUND NECK CUTTING INTO THE SKIN, BODY 

CONDITION WAS NOTED TO BE GOOD AND THE PATIENT 

WAS ALERT AND ACTIVE. PEOPLE WERE HARASSING 

THE PATIENT ON THE BEACH. OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 9 14 GILLNET FISHERY VENTURA CA SI 

ON BOAT DOCK IN CHANNEL ISLANDS HARBOR WITH 

GILLNET AROUND NECK. SEDATED REMOTELY, 

REMOVED GILLNET AND RELEASED IMMEDIATELY 

FOLLOWING DISENTANGLEMENT. 

NSI 

CALIFORNIA 

SEA LION U.S. 2018 9 15 HOOK AND LINE FISHERY SANTA CRUZ CA SI MANOURISHED PATIENT FOUND WITH FISH HOOK AND CLEAR LINE COMING OUT OF MOUTH. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2018 9 25 SHOOTING KING WA DEAD RADIOGRAPH CONFIRMED SEA LION WAS SHOT. THREE PROJECTILES RECOVERED. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 1 HOOK AND LINE FISHERY MONTEREY CA SI ANIMAL FOUND WITH GREEN MONOFILAMENT NETTING EMBEDDED IN TISSUE AROUND NECK. OUTCOME UNKNOWN. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 10 3 CATCH SHARES HOOK AND LINE OFFSHORE OR SI ANIMAL BROKE LINE AND HAD TRAILING GEAR OF UNKNOWN LENGTH. OBSERVER PROGRAM SI 

CALIFORNIA 

SEA LION U.S. 2018 10 4 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 7 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 8 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH HOOK AND LINE FISHERY INTERACTION TREATED AND RELEASED FROM REHAB FACILITY. NSI 

CALIFORNIA 

SEA LION U.S. 2018 10 12 HOOK AND LINE FISHERY SAN DIEGO CA SI 

LETHARGIC ANIMAL HAD LARGE GAFF HOOK IN RIGHT 

UPPER LIP. GAFF WAS REMOVED. WAS ABLE TO USE 

REAR FLIPPERS. RELEASED ON SITE. OUTCOME 

UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 10 12 CATCH SHARES HOOK AND LINE OFFSHORE OR NSI DETERRENCE USED TO SCARE OFF 5 SEA LIONS FEEDING ON CATCH. NO INJURIES REPORTED. OBSERVER PROGRAM NSI 

CALIFORNIA 

SEA LION U.S. 2018 10 15 HOOK AND LINE FISHERY LOS ANGELES CA SI ANIMAL WITH LEFT FRONT FLIPPER FRACTURE DESCRIBED AS HAVING INTERACTED WITH HOOK AND LINE FISHERY. NO FURTHER DETAILS. SI 

CALIFORNIA 

SEA LION U.S. 2018 10 16 MARINE DEBRIS SAN MATEO CA SI 

PATIENT FOUND WITH A BLACK, BELT-LIKE 

ENTANGLEMENT AROUND THE LOWER NECK/ CHEST 

REGION. ENTANGLEMENT WAS SEVERELY CUTTING 

INTO THE PATIENT. ANIMAL WAS EUTHANIZED. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 19 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 25 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 26 MARINE DEBRIS SAN DIEGO CA SI 

SWIM GOGGLES STUCK AROUND NECK OF ANIMAL. 

GOGGLES REMOVED AND ANIMAL RELEASED ON SITE. 

NO DETAILS ON SEVERITY OF INJURY. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 10 27 HOOK AND LINE FISHERY MONTEREY CA DEAD PATIENT FOUND WITH A NECK ENTANGLEMENT SCAR AND FISH HOOK IN SHOULDER, BUT FRESHLY DEAD AT THE TIME OF ARRIVAL. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 27 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 29 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 29 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 10 31 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MENDOCINO CA SI 

PATIENT FOUND WITH AN BLACK FISHING LINE 

ENTANGLED AROUND NECK. ANIMAL WAS ALSO 

LETHARGIC AND MODERATELY UNDERWEIGHT WITH 

CONFOUNDING LEPTOSPIROSIS AND SEPTICEMIA. 

SI 

CALIFORNIA 

SEA LION U.S. 2018 10 31 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 5 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2018 11 7 SHOOTING SANTA CRUZ CA DEAD ANIMAL WITH MULTIPLE GUNSHOT PELLETS IN HEAD FOUND DURING NECROPSY. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 7 SHOOTING KING WA DEAD 

CARCASS HAD PUNCTURE WOUNDS AND GASH ON 

HEAD. STOMACH WAS FULL. X-RAY REVEALED 

PROJECTILES. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 8 GILLNET FISHERY KING WA DEAD 

VISUAL EXAMINATION SHOWED THE HEAD HAD BEEN 

CUT OFF; NO OTHER INJURIES SEEN. EXAMINED BY 

CASEY MCLEAN, ROBIN LINDSEY.__ 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA U.S. 2018 11 11 SHOOTING KITSAP WA DEAD SEA LION 

TRACKING WOUNDS WERE IDENTIFIED FROM THE 

INSIDE OUT FROM THE ABDOMINAL CAVITY AND ONE 

FROM THE THORACIC CAVITY. ABDOMINAL CAVITY FULL 

OF FREE BLOOD. ENTRY OF SHOT THROUGH RIGHT SIDE 

THORACIC CAVITY- TRACKING WOUND BETWEEN RIBS 5 

AND 6; RECOVERED SHOT INSIDE PERICARDIAL SAC; 

CLOTTED BLOOD. TRACKING WOUND INTO ABDOMINAL 

CAVITY. #1 SHOT RECOVERED FROM PERICARDIAL SAC. 

#2 RECOVERED FROM RIGHT C1 VERTEBRAE MUSCLE DEAD 

WITH TRACKING HEMORRHAGE. #3 FOUND IN BLUBBER 

ON DORSAL LEFT SIDE NECK. JUSTIFICATION: 

RECOVERED SHOT PELLETS FROM PERICARDIUM, AND 

AROUND VERTEBRA C1-3, EVIDENCE FOR TRACKING 

INTO ABDOMINAL CAVITY AS WELL. SIGNIFICANT 

AMOUNT BLOOD AND BLOT IN ABDOMEN AND THORACIC 

CAVITY. THIS IS THE APPARENT CAUSE THE DEATH OF 

THIS SEA LION.__ 

3/4 INCH DIAMETER PUNCTURE SEEN ON BACK AND 

CALIFORNIA NUMEROUS SMALL PUNCTURE WOUNDS ON LEFT SIDE U.S. 2018 11 13 SHOOTING KING WA DEAD DEAD 

SEA LION AND FORE FLIPPER. SHOT PELLETS RECOVERED FROM 

BODY ON NECROPSY. 

CALIFORNIA U.S. 2018 11 14 SHOOTING KITSAP WA DEAD SEA LION 

X-RAY SHOWED THREE TYPES OF PROJECTILE IN HEAD 

AND NECK. SMALL SHOT AND ON PROJECTILE FROM 

OLD INJURIES. NOT ABLE TO RECOVER PROJECTILE 

NEAR C2 VERTEBRAE. PROJECTILE RECOVERED FROM 

LEFT LUNG. MULTIPLE PERFORATIONS IN COLON AND DEAD 

SMALL INTESTINE- 7 VISUALIZED. BASED ON THE 

TRACKING HOLES INTO THORAX AND LOWER ABDOMEN 

AS WELL AS THE EXTENSIVE HEMORRHAGE IN INTO 

BOTH CAVITY, THE CAUSE OF DEATH IS APPARENT. 

CALIFORNIA SKULL AND NECK RADIOGRAPH CONFIRM THREE U.S. 2018 11 14 SHOOTING KING WA DEAD DEAD 

SEA LION DIFFERENT TYPES OF PROJECTILES IN HEAD AND NECK. 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND CALIFORNIA CATCH SHARES U.S. 2018 11 16 OFFSHORE OR NSI ANIMAL EXITED VESSEL UNDER ITS OWN POWER. NSI 

SEA LION BOTTOM TRAWL OBSERVER PROGRAM. 

ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND CALIFORNIA CATCH SHARES U.S. 2018 11 16 OFFSHORE OR NSI ANIMAL EXITED VESSEL UNDER ITS OWN POWER. NSI 

SEA LION BOTTOM TRAWL OBSERVER PROGRAM. 

BULLETS WERE FOUND ON X-RAY, ONE BULLET AT THE CALIFORNIA U.S. 2018 11 17 SHOOTING SAN DIEGO CA DEAD BASE OF THE SKULL AND ONE BULLET ABOVE THE DEAD 

SEA LION SHOULDER. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 11 18 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 20 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 22 SHOOTING KING WA DEAD 

CARCASS FOUND FLOATING AND SECURED TO DOCK 

WITH ROPE. DUE TO MULTIPLE TRACKING WOUNDS 

BASED ON EXTERNAL EXAM, CAUSE OF DEATH 

ATTRIBUTED TO SHOOTING. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 22 SHOOTING SAN DIEGO CA DEAD 

TWO BULLETS FOUND ON XRAY, ONE ON THE RIGHT 

SIDE OF THE NECK/SHOULDER AND ONE ON THE RIGHT 

SIDE OF THE MIDBODY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 24 SHOOTING KING WA DEAD 

RETRIEVED SHOT PELLET OUT OF C2 VERTEBRAE 

WHICH WAS FRACTURED AND THERE WAS A TRACKING 

HEMORRHAGE AROUND LOCATION. THIS APPEAR TO BE 

SIGNAFICANT TO CAUSE INJURY AND POSSIBLY CAUSE 

OF DEATH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 26 SHOOTING MARIN CA DEAD 

BULLET WOUNDS. SHOT SIX TIMES IN THE RIGHT SIDE 

AROUND THE SHOULDER AND RIBS AREA. LEFT SIDE 

BRAND V370. NO TAGS PRESENT IDENTIFIED AS ANIMAL 

THAT WAS BRANDED ON SAN MIGUEL ISLAND AS A PUP 

IN 2011. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 11 28 SHOOTING MASON WA DEAD 

TRACKING WOUND FROM SMALL ROUND HOLE IN BACK 

LEFT SKULL INTO LEFT FRONTAL LOBE. PELLET FOUND 

IN BRAIN TISSUE WITH SURROUNDING HEMORRHAGE. 

GOOD BODY CONDITION, STOMACH FULL OF FOOD. 

CAUSE OF MORTALITY DUE TO GUNSHOT BUT DEATH 

WAS NOT IMMEDIATE--IT SURVIVED LONG ENOUGH TO 

INHALE A LARGE AMOUND OF SAND, GRAVEL AND 

ROCKS. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 12 4 SHOOTING KING WA DEAD RADIOGRAPHS CONFIRMED ANIMAL WAS SHOT. NO FURTHER DETAILS. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 12 4 SHOOTING KING WA DEAD RADIOGRAPH OF HEAD CONFIRMED ANIMAL WAS SHOT. DEAD 

CALIFORNIA 

SEA LION U.S. 2018 12 8 MARINE DEBRIS SAN DIEGO CA SI SWIMMING GOGGLES ENTANGLED AROUND HEAD. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2018 12 12 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 12 12 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 12 20 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2018 MIDWATER TRAWL ROCKFISH EM OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2018 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 1 2 SHOOTING PACIFIC WA DEAD 

EXPOSED SKULL AND LARGE SUSPICIOUS HOLE 

DORSALLY ABOVE LEFT SCAPULA CONSISTENT WITH 

SHOOTING. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 1 3 SHOOTING PIERCE WA DEAD 

RECOVERY OF THE BULLET FROM BRAIN AND THE 

MARKED HEMORRHAGE IN SKULL CONFIRM THE SEA 

LION WAS SHOT WHILE STILL ALIVE. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 1 7 GILLNET FISHERY SAN DIEGO CA SI GILL NET AROUND NECK AND UNDER EAR. NET REMOVED AND ANIMAL WAS RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 1 9 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 1 9 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED, DEHYDRATED ANIMAL WITH FISH HOOK IN MOUTH. NO DETAILS ON WHETHER HOOK WAS INTERNAL / EXTERNAL. SI 

CALIFORNIA 

SEA LION U.S. 2019 1 13 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH LINE AND HOOKS AROUND BODY. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 1 15 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 1 16 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISHING LINE AROUND NECK. SI 

CALIFORNIA 

SEA LION U.S. 2019 1 28 HOOK AND LINE FISHERY SAN DIEGO CA NSI FISH HOOK IN LOWER RIGHT JAW/CHIN, CAME OUT WHEN NETTED. EXCELLENT BODY CONDITION. TAGGED AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 1 30 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 2 4 CATCH SHARES BOTTOM TRAWL OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 2 4 GILLNET FISHERY VENTURA CA SI 

ANIMAL PHOTOGRAPHED WITH GILLNET CUTTING INTO 

NECK IN TWO SEPARATE CIRCUMFERENTIAL BANDS, 

SUBCUTANEOUS LAYER EXPOSED, NET MATERIAL 

DEEPLY-EMBEDDED. LOOKS LIKE AN ADULT FEMALE IN 

GOOD BODY CONDITION. PHOTO TAKEN DURING FIELD 

WORK AT SAN NICOLAS ISLAND. PHOTO REVIEWED BY J. 

CARRETTA. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 2 5 HOOK AND LINE FISHERY ORANGE CA SI DEHYDRATED AND EMACIATED ANIMAL WITH HOOK IN EYELID. SWOLLEN NECK. SI 

CALIFORNIA 

SEA LION U.S. 2019 2 20 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 2 20 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 2 20 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 2 SHOOTING MONTEREY CA DEAD BULLET RECOVERED. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 3 4 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 6 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 6 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 9 CATCH SHARES BOTTOM TRAWL OFFSHORE WA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 3 9 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISH HOOK IN FLIPPER. SI 

CALIFORNIA 

SEA LION U.S. 2019 3 13 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 16 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 17 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 20 MARINE DEBRIS ORANGE CA SI THICK RUBBER-BAND AROUND MUZZLE OF EMACIATED ANIMAL. SI 

CALIFORNIA 

SEA LION U.S. 2019 3 22 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 22 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 3 24 HOOK AND LINE FISHERY SAN DIEGO CA SI EMACIATED ANIMAL WITH FISH HOOK IN LOWER LIP. SI 

CALIFORNIA 

SEA LION U.S. 2019 3 26 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 31 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 3 31 HOOK AND LINE FISHERY SAN DIEGO CA SI HOOK EMBEDDED ABOVE RIGHT EYE. FISHING LURE WITH HOOK IN BOTTOM RIGHT CORNER OF MOUTH. SMALL PUNCTURE WOUND OVER LEFT HIP. SI 

CALIFORNIA 

SEA LION U.S. 2019 4 1 HOOK AND LINE FISHERY SAN DIEGO CA NSI 

ANIMAL HAD A FISHING HOOK WITH LINE ATTACHED IN 

THE LEFT SIDE OF HIS NECK, BUT WAS OTHERWISE 

HEALTHY. RELEASED ON SITE ONCE THE HOOK AND 

LINE WERE REMOVED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2019 4 2 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH FISHING LINE ENTANGLEMENT AND SEVERED RIGHT EAR. SI 

CALIFORNIA 

SEA LION U.S. 2019 4 3 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 5 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 5 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 5 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 5 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 4 14 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 4 14 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 4 14 HOOK AND LINE FISHERY VENTURA CA SI UNDERWEIGHT ANIMAL WITH FISHING HOOK IN FOREFLIPPER TRANSFERRED TO REHAB FACILITY. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2019 4 18 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 18 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED ANIMAL WITH FISH HOOK IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2019 4 18 HOOK AND LINE FISHERY SAN DIEGO CA SI MALNOURISHED ANIMAL WITH FISH HOOK IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2019 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 23 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 24 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 24 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 24 GILLNET FISHERY SAN DIEGO CA SI ANIMAL WITH GILLNET DOUBLE-WRAPPED AROUND NECK AND HEAD. GEAR REMOVED BY RESPONDERS. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 4 25 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 25 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 30 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 30 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 30 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 30 SHOOTING CLALLAM WA DEAD 

A CLEAR BULLET TRAJECTORY WAS FOUND FROM 

ABOVE THE RIGHT EYE INTO THE BRAIN, THOUGH NO 

BULLET WAS FOUND. BULLET HOLE IN SKULL MEASURED 

APPROXIMATELY 5MM IN DIAMETER, AND 

HEMORRHAGING WAS VISIBLE IN ALL PRECEDING 

LAYERS OF FLESH, INCLUDING THROUGH THE SKIN. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 4 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 4 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 1 

CA LOBSTER TRAP / 

POT 

ENTANGLEMENT 

SANTA 

BARBARA CA SI SEA LION ENTANGLED IN 40 KG OF LOBSTER GEAR SEDATED AND GEAR REMOVED. NSI 

CALIFORNIA 

SEA LION U.S. 2019 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 2 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 4 GILLNET FISHERY SANTA BARBARA CA SI PINK MONOFILAMENT GILLNET ENTANGLED ON HEAD, SNOUT AND THROUGH MOUTH. 4 CM LACERATION ON LEADING EDGE OF RIGHT FRONT FLIPPER. SI 

CALIFORNIA 

SEA LION U.S. 2019 5 6 HOOK AND LINE FISHERY SANTA CRUZ CA SI 

LARGE SALMON FLASHER LURE HANGING OUT OF 

MOUTH WITH FISHING LINE. PROBABLE HOOK IN 

THROAT. SUCCESSFULLY RESCUED FROM BOAT AFTER 

DAYS OF BEING ON WATCH AND UNSUCCESSFUL 

ATTEMPTS AT RESCUE. FLASHER AND LINE CAME OUT 

DURING RESCUE AND WERE RETAINED, BUT HOOK 

LIKELY REMAINS IN THROAT. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 5 7 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 7 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 7 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 8 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 5 8 SEA CUCUMBER BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 8 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 10 HOOK AND LINE FISHERY LOS ANGELES CA SI FISH HOOK IN LIP OF MALNOURISHED ANIMAL. SI 

CALIFORNIA 

SEA LION U.S. 2019 5 11 SHOOTING SANTA CRUZ CA DEAD ANIMAL FOUND WITH GUNSHOT WOUND TO HEAD, CONFIRMED VIA RADIOGRAPHY. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 13 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 5 14 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 14 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 14 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 14 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 14 AUTHORIZED MMPA SEC. 120 REMOVAL WILLIAMETTE FALLS OR ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 14 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED ANIMAL WITH FISHING HOOKS IN REAR FLIPPERS. ANIMAL REPORTED AS BEING INSIDE A SLEEPING BAG, ACCOMPANIED BY HUMAN. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 5 15 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 15 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 15 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 15 AUTHORIZED MMPA SEC. 120 REMOVAL COLUMBIA RIVER WA ALIVE 

REMOVAL OF ANIMAL PREYING ON ENDANGERED 

SALMON IN COLUMBIA RIVER. AUTHORIZED UNDER 

MMPA SECTION 120. ANIMAL KILLED BY LETHAL 

INJECTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 16 HOOK AND LINE FISHERY ORANGE CA SI EMACIATED ANIMAL WITH FISH HOOKS IN FLIPPERS. SI 

CALIFORNIA 

SEA LION U.S. 2019 5 16 HOOK AND LINE FISHERY SAN DIEGO CA NSI REPORT INDICATES ANIMAL WITH HOOK IN REAR FLIPPER IN CUSTODY OF LIFEGUARDS. NO FURTHER DETAILS. NSI 

CALIFORNIA 

SEA LION U.S. 2019 5 17 GILLNET FISHERY ORANGE CA SI 

EMACIATED AND DEHYDRATED ANIMAL WAS 

ENTANGLED IN GILLNET AROUND NECK. THE NETTING 

HAD BECOME STUCK TO THE BUOY, TRAPPING THE 

ANIMAL. OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 5 17 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT, DEHYDRATED, FISH HOOKS IN FRONT AND REAR FLIPPERS. SI 

CALIFORNIA 

SEA LION U.S. 2019 5 19 SHOOTING CLATSOP OR DEAD ANIMAL IN EXCELLENT BODY CONDITION. BULLET FRAGMENTS RECOVERED FROM HEAD AND STOMACH. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 20 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISH HOOK IN JAW. SI 

CALIFORNIA 

SEA LION U.S. 2019 5 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI MALNOURISHED ANIMAL WITH CIRCUMFERENTIAL ENTANGLING WOUND AROUND NECK. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 5 27 SHOOTING MONTEREY CA DEAD 

SILVER AND ORANGE FLASHER ON MONOFILAMENT LINE 

HANGING FROM MOUTH. SMALL REGIONS OF ALOPECIA. 

BULLET FRAGMENT FOUND BY CAS DURING 

PROCESSING OF THE SKULL, NOT APPARENT DAMAGE 

TO THE SKULL, BUT THE PROJECTILE HAD A FLAT SIDE 

WHICH SUGGESTED IT RESTED AGAINST BONE AT SOME 

POINT. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 5 28 MARINE DEBRIS SAN DIEGO CA SI 

DIVE MASK AROUND NECK OF DEHYDRATED AND 

MALNOURISHED ANIMAL. CONSTRICTING WOUNDS TO 

NECK. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 5 28 HOOK AND LINE FISHERY SAN LUIS OBISPO CA SI TANGLED FISHING LINE STUCK IN RIGHT UNDERSIDE, ANTERIOR TO FRONT RIGHT FLIPPER. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 2 SHOOTING MONTEREY CA DEAD 

MODERATELY UNDERWEIGHT, LEFT EYE INJURY FROM 

GUNSHOT, AND BULLET IN NECK. (BULLETS IN HEAD AND 

NECK, NO BULLETS RECOVERED BUT FRAGMENTS 

FOUND UPON NECROPSY.) 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 6 5 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH 3 FISH HOOKS, BUT DETAILS LACKING ON HOOK PLACEMENT OR INJURY SEVERITY. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 7 

UNIDENTIFIED 

HUMAN 

INTERACTION 

SAN LUIS 

OBISPO CA DEAD 

EMACIATED ANIMAL THAT DIED. BILATERAL OCULAR 

TRAUMA AND CRANIAL FRACTURE ARE SUGGESTIVE OF 

RECENT INJURY THAT WAS LIKELY ANTHROPOGENIC. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 6 8 MARINE DEBRIS SAN DIEGO CA SI 

ENTANGLEMENT AROUND NECK. WHITE PLASTIC WRAP, 

BALLOON RIBBON, AROUND NECK. GOOD BODY 

CONDITION. CUT THE ENTANGLEMENT AND RELEASED 

ON SITE. 

NSI 

CALIFORNIA 

SEA LION U.S. 2019 6 9 HOOK AND LINE FISHERY SAN LUIS OBISPO CA SI 

ENTANGLED MALNOURISHED, ABSCESS, AND TRAILING 

LINE FROM ANUS AND ACTIVELY BLEEDING. REPORTING 

PARTY REPORTED BLOOD AND LINE FROM THE ANUS AS 

WELL AS LINE COMING FROM THE MOUTH, BUT 

RESCUERS ONLY SAW LINE IN THE MOUTH. FINAL 

OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 6 11 SHOOTING CLATSOP OR DEAD 

ANIMAL HAD EXCELLENT BODY CONDITION EXCEPT FOR 

HEMORRHAGE BENEATH A HOLE IN THE SHOULDER 

AREA, WHICH TRACKED INTO ANTERIOR THORAX; 

HEMORRHAGE ON AND BEHIND HEAD, NECK 

(SUBSTANTIAL AROUND PELVIC AREA AND PENIS). 

ZYGOMATIC ARCH BROKEN IN TWO PLACES WITH 

EXTENSIVE HEMORRHAGE ON HEAD AND MANDIBLE. 

INJURIES CONSISTENT WITH SHOOTING EVENT. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 6 11 HOOK AND LINE FISHERY SANTA CRUZ CA SI EMACIATED AND MULTIPLE SMALL FISHOOKS IN ANIMAL (AT LEAST 1 IN MOUTH/NOSE AND 1 IN ABDOMEN). SI 

CALIFORNIA 

SEA LION U.S. 2019 6 14 HOOK AND LINE FISHERY SANTA BARBARA CA SI ENTANGLED CSL PUP RESCUED DUE TO BEING THIN AND ENTANGLED IN PLASTIC FISHING LINE. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 15 HOOK AND LINE FISHERY SANTA CRUZ CA SI 

ENTANGLED CSL HAS 2 FISH HOOKS - ONE IN HEAD AND 

ONE ABOVE LEFT FRONT FLIPPER. REPORTING PARTY 

CUT THE FISHING LINE. ONLY ONE HOOK OBSERVED BY 

RESPONDERS, AND NO HOOKS/FISHING GEAR VISIBLE IN 

ANIMAL, NET, CARRIER, OR ON BEACH AFTER RESCUE. 

UNCERTAIN HOW/WHERE HOOKS WERE LOST IN THE 

PROCESS OF RESCUE, AND NO DETAILS OF HOOKS 

GATHERED. ALSO EMACIATED AND ABSCESS. FINAL 

OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 6 17 MARINE DEBRIS LOS ANGELES CA SI MALNOURISHED ANIMAL WITH ROPE AROUND NECK. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 19 HOOK AND LINE FISHERY ORANGE CA SI DEHYDRATED AND UNDERWEIGHT ANIMAL WITH FISH HOOKS IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 22 HOOK AND LINE FISHERY SANTA CRUZ CA SI 

MODERATELY UNDERWEIGHT, AND FISH HOOK 

EMBEDDED IN RIGHT REAR FLIPPER ON THE LATERAL 

ASPECT. RIGHT CAUDAL SIDE OF ABDOMEN SMALL 

(5X5MM LACERATION/ TRAUMA; POSSIBLE BITE WOUND). 

SI 

CALIFORNIA 

SEA LION U.S. 2019 6 24 SHOOTING SONOMA CA DEAD BULLET HOLES FOUND DURING PREPARATION OF SKULL. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 6 24 HARASSMENT MONTEREY CA SI 

ILLEGAL PICKUP/HARASSMENT MATERNAL SEPARATION 

(SUSPECT DOMOIC ACID TOXICITY MOTHER). 

BOYFRIEND OF REPORTING PARTY PICKED ANIMAL UP 

OFF OF ROCKS AND MOVED IT TO THE BEACH. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 6 24 HOOK AND LINE FISHERY MONTEREY CA SI ENTANGLEMENT PUBLIC CUT SOME OF THE FISHING LINE OFF, REDUCING IT FROM ~20' LONG TO ~6' LONG. ANIMAL EMACIATED. SI 

CALIFORNIA 

SEA LION U.S. 2019 6 24 HARASSMENT MONTEREY CA SI 

MILDLY UNDERWEIGHT, PUBLIC MEMBERS REPORTEDLY 

HANDLING PUP, ABANDONED BY A DAM. SUSPECTED TO 

BE AFFECTED BY DOMOIC ACID TOXICITY DUE TO 

UNUSUAL BIRTHING LOCATION. PUP WAS MONITORED 

OVER MULTIPLE DAYS AND WAS SEEN DECLINING IN 

HEALTH. DECISION MADE TO PICK UP PUP SINCE 

MOTHER NOT SEEN OVER A WEEK. HARASSED 

MATERNAL SEPARATION. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 6 26 HOOK AND LINE FISHERY SANTA CRUZ CA SI ENTANGLEMENT - REPORTED HOOK/LINE, NO LONGER ATTACHED DURING RESCUE, PROBABLE RP REMOVAL PRE-RESPONSE. MODERATELY UNDERWEIGHT. NSI 

CALIFORNIA 

SEA LION U.S. 2019 6 27 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 6 29 VESSEL STRIKE SAN LUIS OBISPO CA SI MODERATELY UNDERWEIGHT AND SEVERE PROPELLER WOUNDS (VERY DEEP AND EXTENDS INTO MUSCLE AND UNDERLYING LUMBAR VERTEBRA). SI 

CALIFORNIA 

SEA LION U.S. 2019 6 29 GILLNET FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL ENTANGLED IN FISHING NET. SI 

CALIFORNIA 

SEA LION U.S. 2019 7 2 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISH HOOK IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2019 7 3 OIL / TAR MONTEREY CA SI EMACIATED AND OIL/TAR IN BOTH AXILLA ON DORSAL ASPECT. SI 

CALIFORNIA 

SEA LION U.S. 2019 7 6 HOOK AND LINE FISHERY SAN DIEGO CA NSI HOOK ON RIGHT FRONT FLIPPER. REMOVED AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 7 8 MARINE DEBRIS MONTEREY CA DEAD 

BLACK LINE (BUNGEE CORD) ENTANGLEMENT AROUND 

NECK. LARGE LACERATION BELOW ENTANGLEMENT. 

POOR BODY CONDITION. CARCASS STRANDED AT 

MONTEREY BAY AQUARIUM AND WAS RECOVERED BY 

MBA DIVERS. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 7 8 HOOK AND LINE FISHERY MONTEREY CA SI 

MONOFILAMENT ENTANGLEMENT CIRCUMFERENTIAL 

AROUND NECK. MULTIPLE SECTIONS OF WOUND 

EPITHELIALIZED OVER MONOFILAMENT. MODERATELY 

UNDERWEIGHT. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 7 10 HOOK AND LINE FISHERY MONTEREY CA SI 

MODERATELY UNDERWEIGHT, HARSH LUNG SOUNDS, 

FAVORING RIGHT FRONT FLIPPER (HOOK EMBEDDED IN 

SKIN OVER CAUDAL PELVIS, CAUGHT IN NET ON 

CAPTURE AND HOOK WAS CUT/REMOVED). OUTCOME 

UNKNOWN. 

NSI 

CALIFORNIA 

SEA LION U.S. 2019 7 12 GILLNET FISHERY SAN DIEGO CA SI PINK GILL-NET AROUND NECK. DEEPLY EMBEDDED. RAW AND BLEEDING. GOOD WEIGHT. SI 

CALIFORNIA 

SEA LION U.S. 2019 7 13 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 7 13 VESSEL STRIKE SANTA CRUZ CA SI 

MULTIPLE LACERATIONS TO CHEST AND RIGHT FRONT 

FLIPPER. MILDLY UNDERWEIGHT ANIMAL HAD 

PNEUOMONIA, AS DETERMINED VIA RADIOGRAPH. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 7 16 HOOK AND LINE FISHERY SAN LUIS OBISPO CA SI 

EMACIATED AND PNEUMONIA. STRANDED INSIDE 

BOUNDARY OF A POWER PLANT. THERE WAS A LARGE 

(~15CM) FISHING LURE THAT RESEMBLED A SQUID 

WITHIN THE BODY OF THE STOMACH FOUND DURING 

POST-MORTEM EXAMINATION. IT DID NOT HAVE ANY 

FISHING LINE OR A HOOK ASSOCIATED WITH IT, SO 

PRESUMED INGESTION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 7 26 HOOK AND LINE FISHERY SAN DIEGO CA NSI 

FISHING HOOK IN LEFT CHEEK WITH FISHING LINE 

WRAPPED AROUND TAG ON LEFT FLIPPER. GOOD BODY 

CONDITION. FISHING HOOK AND LINE REMOVED AND 

ANIMAL WAS RELEASED ON SITE. 

NSI 

CALIFORNIA 

SEA LION U.S. 2019 7 27 SHOOTING SAN DIEGO CA SI 

DEHYDRATED, THIN, WEAK, SUNKEN EYES, AND 

LETHARGIC. BULLET FOUND DORSAL SIDE, DIRECTLY 

BEHIND THE SKULL; BULLET FRAGMENTS FOUND LEFT 

DORSAL SIDE BEHIND SHOULDER BLADE. PROLAPSED 

PENIS AND NO USE OF REAR FLIPPERS; SUSPECT 

PARALYSIS. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 7 28 HOOK AND LINE FISHERY VENTURA CA DEAD FRESH DEAD CSL WITH GAFF THRU LEFT SIDE OF BODY AND UPPER FLIPPER. SEVERE DAMAGE TO NECK AREA- POSSIBLE PREDATION. GAFF COLLECTED. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 7 30 HOOK AND LINE FISHERY LOS ANGELES CA NSI FISHING LINE AROUND TAG. ANIMAL RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2019 8 1 SHOOTING MONTEREY CA SI 

EMACIATED, REPORTED SEIZURES AND LARGE 

ABSCESS IN RIGHT HIP AREA. POST-MORTEM 

EXAMINATION FOUND TWO BUCKSHOT BULLETS OR 

METAL BBS RECOVERED FROM THE FASCIA LAYER JUST 

BELOW THE SKIN. ONE BEING ON THE NECK AND THE 

OTHER BEING ON THE STERNUM. ABSCESS, 

MALNUTRITION, GUNSHOT TRAUMA. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 8 4 SHOOTING MONTEREY CA SI 

EMACIATED, LETHARGIC, KEEPING ONE EYE CLOSED. 

RADIOGRAPHS SHOW NUMEROUS METALLIC PELLETS 

THROUGHOUT ENTIRE HEAD CONSISTENT WITH 

SHOTGUN BLAST; BOTH EYES SEVERELY DAMAGED 

LIKELY DUE TO THIS ETIOLOGY, AS WELL AS 

FRACTURED LEFT CANINE TOOTH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 8 10 SHOOTING SANTA CLARA CA SI 

MILDLY UNDERWEIGHT WITH ENTANGLEMENT AROUND 

MANDIBLE. RADIOGRAPHS SHOWED BULLET IN 

PARAVERTEBRAL LUMBAR MUSCLE. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 8 13 HOOK AND LINE FISHERY SAN DIEGO CA NSI SMALL FISHING HOOK IN GAPE OF MOUTH ON RIGHT SIDE. HOOK REMOVED. ANIMAL NOT TAGGED DUE TO THE STRESS LEVEL OF THE ANIMAL. RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 8 16 SHOOTING THURSTON WA DEAD 

MULTIPLE PELLETS IN L SIDE HEAD AND NECK, 

PENETRATING BRAIN. PREMORTEM, TRACKING 

HEMORRHAGE ASSOCIATED. PARTIALLY DIGESTED 

SALMON GILLS BLOCKING ESOPHAGUS. CHINOOK 

SALMON COMMERCIAL FISHING OPEN FOR SQUAXIN 

ISLAND TRIBE IN THE REGION DURING THIS TIME 

PERIOD. PELLETS RECOVERED AND TURNED OVER TO 

OLE ON 06-NOV-19 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 8 24 MARINE DEBRIS SAN DIEGO CA SI BAND WRAPPED AROUND NECK. CUT AND RELEASED. NSI 

CALIFORNIA 

SEA LION U.S. 2019 8 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 8 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 8 

WEST COAST 

GROUNDFISH 

FISHERY 

UNKNOWN UNKNOWN DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 15 GILLNET FISHERY SAN DIEGO CA SI GILLNET AROUND NECK. CUT AND REMOVED. RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 9 30 

WEST COAST 

GROUNDFISH 

FISHERY 

UNKNOWN UNKNOWN DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 30 

WEST COAST 

GROUNDFISH 

FISHERY 

UNKNOWN UNKNOWN DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 30 

WEST COAST 

GROUNDFISH 

FISHERY 

UNKNOWN UNKNOWN DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 2 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 3 CATCH SHARES BOTTOM TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 10 3 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 3 SHOOTING SAN FRANCISCO CA SI TRAUMA TO LEFT EYE, MODERATELY UNDERWEIGHT. RADIOGRAPHS SHOWED BUCKSHOT IN SKULL. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 7 CATCH SHARES BOTTOM TRAWL OFFSHORE CA NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 10 9 HOOK AND LINE FISHERY SAN DIEGO CA NSI HOOD EMBEDDED IN LEFT FRONT FLIPPER. REMOVED AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 10 9 HOOK AND LINE FISHERY SAN DIEGO CA SI GREAT BODY CONDITION. FISH NET AND TWINE AROUND THE NECK. FISH HOOK AND LINE IN LIP. BOTH REMOVED AND ANIMAL RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2019 10 12 SHOOTING KING WA DEAD PROJECTILES FOUND IN SKULL DURING NECROPSY. DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 13 SHOOTING SONOMA CA SI 

ANIMAL WITH GOOD BODY CONDITION HOPPED ONTO 

PRIVATE BOAT OFFSHORE. RESPONDERS FOUND 

BULLET FRAGMENT LODGED IN LIP. MATERIAL 

REMOVED. UNKNOWN IF ADDITIONAL MATERIAL 

REMAINED IN ANIMAL. THE FACT THAT PRIVATE 

CITIZENS WERE ABLE TO HANDLE AND REMOVE 

MATERIAL FROM A WILD SEA LION WITHOUT TYPICAL 

VETERINARY PROTOCOLS SUGGESTS THE ANIMAL WAS 

HEALTH COMPROMISED. SERIOUS INJURY 

DESIGNATION. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 10 15 HOOK AND LINE FISHERY ORANGE CA SI UNDERWEIGHT ANIMAL WITH FISH HOOKS IN MOUTH AND RIGHT REAR FLIPPER. SI 

CALIFORNIA 

SEA LION U.S. 2019 10 16 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 21 SHOOTING SAN MATEO CA SI 

SUPERFICIAL LACERATION PRESENT OVER RIGHT EYE, 

SEVERAL LACERATIONS OVER VENTRUM, MILDLY 

UNDERWEIGHT, DISORIENTED, AGGRESSIVE. 

RADIOGRAPHS SHOWED SHOTGUN PELLETS IN LEFT 

PELVIC LIMB FLIPPER. DOMOIC ACID TOXICITY, 

GUNSHOT TRAUMA, SHARK BITE TRAUMA. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 10 22 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD KILLED IN GEAR DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 24 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 27 SHOOTING KITSAP WA DEAD 

PENATRATING WOUNDS ON LEFT SIDE OF BODY ABLE 

TO TRACK 5 ENTRANCE WOUNDS ALL TRACKING 

FORWARD INTO CHEST AND NECK. ONE GRAZED ON 

BACK. CONFIRMED SEA LION WAS SHOT VIA EXTERNAL/ 

INTERNAL EXAM/ RADIOGRAPHS AND BULLET 

RECOVERED. BASED ON THE EXTENSIVE HEMORRHAGE 

AND BLOOD LOSS SHOOTING WAS DETERMINED TO BE 

CAUSE OF DEATH. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2019 11 2 SHOOTING KITSAP WA DEAD 

ANIMAL WITH TRACKING WOUNDS AND HEMORRHAGING. 

BULLET / PELLET FRAGMENTS RECOVERED FROM 

BRAIN. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 11 6 HAKE MIDWATER TRAWL OFFSHORE OR NSI ANIMAL ENTANGLED IN NET, BROUGHT ON DECK AND ANIMAL EXITED VESSEL UNDER ITS OWN POWER. OBSERVER PROGRAM. NSI 

CALIFORNIA 

SEA LION U.S. 2019 11 7 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 11 17 MARINE DEBRIS LOS ANGELES CA SI 

MALNOURISHED ANIMAL ENTANGLED IN PACKING 

STRAP. NO NARRATIVE REGARDING WHETHER 

CONSTRICTING OR NOT, BUT ANIMAL'S CONDITION 

SUGGESTS THIS MAY BE THE CASE. 

SI 

CALIFORNIA 

SEA LION U.S. 2019 11 24 SHOOTING CLATSOP OR DEAD 

THERE WAS A PELLET (BIRDSHOT) HOLE IN SKULL 

VENTRAL TO RIGHT SUPRAORBITAL PROCESS (MAY 

HAVE BEEN WHAT ULTIMATELY LED TO TWISTED 

INTESTINES); HISTOPATHOLOGY SUPPORTED TRAUMA 

AS COD - NO CO-MORBIDITIES, GOOD BODY CONDITION. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

CSL STRANDED 11/25, SECURED UNTIL NECROPSY 11/27. 

GOOD ABDOMEN BLUBBER THICKNESS. BULLET 

CALIFORNIA TRAJECTORY TRACED FROM DORSAL ENTRY WOUND U.S. 2019 11 25 SHOOTING KING WA DEAD DEAD 

SEA LION AND PROJECTILE RECOVERED IN RIBCAGE. VERTEBRAE 

FRACTURED, CAVITY FILLED WITH BLOOD, WOUND IN 

LUNG. FISH IN STOMACH. 

CALIFORNIA HEALTHY PUP WITH A TRAP (ZIP TIES) AROUND ITS U.S. 2019 11 30 MARINE DEBRIS SAN DIEGO CA SI NSI 

SEA LION NECK. DISENTANGLED AND RELEASED ON SITE. 

FISHING LINE AND HOOK IN MOUTH. WEIGHTED LURE 

WAS ATTACHED BUT WAS REMOVED BY PUBLIC BEFORE 

CALIFORNIA HOOK AND LINE SEAWORLD ARRIVED. THE FISHING LINE FELL OUT OR U.S. 2019 12 1 SAN DIEGO CA SI SI 

SEA LION FISHERY WAS SWALLOWED DURING RESCUE. LETHARGIC, 

DISORIENTED ON THE DOCK, SUSPECT DOMOIC ACID 

TOXICOSIS. 

CALIFORNIA SMALL BUCKSHOT PELLET FOUND IN FACE DURING U.S. 2019 12 2 SHOOTING MONTEREY CA DEAD DEAD 

SEA LION POST-MORTEM EXAMINATION. 

CALIFORNIA U.S. 2019 12 4 SHOOTING PACIFIC WA DEAD SEA LION 

ANIMAL HAD EXCELLENT BODY CONDITION; THERE WAS 

HEMORRHAGE AND CLOTTED BLOOD ON THE DORSAL 

PELVIC REGION WITH A DISTINCT HOLE IN THE LATERAL 

PELVIC TISSUE POSSIBLY ASSOCIATED WITH A VENTRAL 

EXIT WOUND AROUND THE PENILE AREA (SOMEWHAT 

OBSCURED BY GULL SCAVENGING IN THIS AREA); 

THERE WAS FOAM IN THE TRACHEA AND BRONCHI; DEAD 

SCRAPE MARKS ON THE FOREFLIPPERS AND ODD 

INDENTATIONS ON THE HIND FLIPPERS--HARD TO 

DISTINGUISH FROM LESIONS; TISSUES WERE SLIGHTLY 

TACKY TO THE TOUCH AND LYMPH NODES MOTTLED 

AND A LITTLE ABNORMAL--SUSPECTED ILLNESS, BUT IT 

WAS NOT CAUSE OF DEATH. 

SEA LION TRAPPED ON FLOTATION BARREL 

SUPPORTING SECURITY FENCE AT SHIPYARD. 

OBSERVED THE SEA LION'S PENILE OPENING WAS 

IMPALED ON A 2" DIAMETER METAL BOLT. CALIFORNIA U.S. 2019 12 17 MARINE DEBRIS KING WA SI ADMINISTERED SEDATIVE AND REVERSAL DRUG. THE NSI 

SEA LION TEAM LIFTED THE HIND QUARTERS AND RELEASED THE 

ANIMAL. AFTER 2 MINUTES, HE WAS OBSERVED 

SWIMMING NORMALLY AND HAULING OUT ON ANOTHER 

BARREL. 

VERY LARGE MALE, VERY THIN, QUIET, ALERT, 

CALIFORNIA RESPONSIVE, DEHYDRATED. HAS AN INJURY TO THE U.S. 2019 12 21 SHOOTING SAN DIEGO CA SI DEAD 

SEA LION TOP OF HIS HEAD AND A CLOUDY RIGHT EYE. POST 

MORTEM X-RAY SHOWED TWO BULLETS IN HEAD. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2019 12 22 

UNIDENTIFIED 

HUMAN 

INTERACTION 

MENDOCINO CA SI 

MODERATELY UNDERWEIGHT, SUPERFICIAL ABRASION 

CAUDAL TO RIGHT SHOULDER, HEART MURMUR. 

RADIOGRAPHS SHOWED A SINGLE METALLIC FOREIGN 

BODY PRESENT IN DORSAL SUBCUTANEOUS CERVICAL 

REGION, NO EVIDENCE OF TRAUMA OR FRACTURES. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2019 12 25 HOOK AND LINE FISHERY SAN DIEGO CA SI 

GOOD BODY CONDITION. SINGLE STRAND OF LINE 

AROUND NECK, SUPERFICIAL BUT MODERATELY DEEP. 

LINE WAS CUT OUT, WOUND WAS CLEANED, ANIMAL 

WAS TAGGED AND RELEASED. 

NSI 

CALIFORNIA 

SEA LION U.S. 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE WA DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM DEAD 

CALIFORNIA 

SEA LION U.S. 2020 1 6 SHOOTING PIERCE WA DEAD HOLE IN HEAD, FRAGMENT FOUND UPON NECROPSY. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 1 24 VEHICLE COLLISION COLUMBIA RIVER OR SI ANIMAL HIT BY VEHICLE, DISPATCHED BY LAW ENFORCEMENT. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 2 21 GILLNET FISHERY MONTEREY CA SI UNDERWEIGHT ANIMAL DESCRIBED WITH 'CERVICAL ENTANGLEMENT' IN NET MATERIAL. SI 

CALIFORNIA 

SEA LION U.S. 2020 2 23 MARINE DEBRIS SAN DIEGO CA SI 

ANIMAL DESCRIBED WITH CONSTRICTING 

ENTANGLEMENT CUTTING INTO NECK. NARRATIVE 

DESCRIBES ANIMAL BEING 'RESCUED'. 

NSI 

CALIFORNIA 

SEA LION U.S. 2020 2 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA DEAD CARCASS OFFSHORE ENTANGLED IN ROPES AND NET. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 2 28 HOOK AND LINE FISHERY SANTA CRUZ CA DEAD 2 HOOKS FOUND ON FRESH DEAD ANIMAL - ONE UNDER RIGHT FLIPPER AND ONE ON NECK PLASTIC AND CARDBOARD SALMON TAGS. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 2 29 SHOOTING PACIFIC WA DEAD 

EXCELLENT BODY CONDITION; BULLET AND BULLET 

FRAGMENTS WERE RECOVERED FROM WOUND IN NECK. 

HISTOPATHOLOGY SUPPORTS GUNSHOT WOUND WITH 

NO OTHER MAJOR DISEASE CONTRIBUTOR. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 3 13 VESSEL STRIKE MONTEREY CA DEAD LARGE STRAIGHT CUT ON BACK CONSISTENT WITH VESSEL STRIKE TRAUMA. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 3 26 HOOK AND LINE FISHERY MONTEREY CA SI UNDERWEIGHT LETHARGIC ANIMAL WITH FISH HOOK IN FLIPPER. NO FURTHER DETAILS. SI 

CALIFORNIA 

SEA LION U.S. 2020 4 20 SHOOTING MONTEREY CA SI 

LETHARGIC, MODERATELY UNDERWEIGHT, 

BULLET/BUCKSHOT PELLET FOUND IN MUSCLE ON 

CREST, LACERATIONS ON CAUDAL ABDOMEN WITH 

FIBROUS MATERIAL PRESENT WITHIN WOUNDS. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 4 26 SHOOTING SAN FRANCISCO CA SI 

HEAD WEAVING, SHIVERING, MODERATELY 

UNDERWEIGHT, BUCKSHOT AND PUNCTURE WOUND, 

MODERATE SWELLING OF JAW. NO DETAILS ON FINAL 

OUTCOME. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 5 3 GILLNET FISHERY SANTA BARBARA CA SI 

THIN SUB-ADULT STRANDED ON BEACH WITH GILL NET 

AROUND HEAD AND NECK. RESCUED, DISENTANGLED 

AND RELEASED AT LESS POPULATED LOCATION ON 

SAME DAY. FINAL OUTCOME UNKNOWN, ASSUMED TO 

BE A SERIOUS INJURY DUE TO DECLINE IN HEALTH 

(WEIGHT REDUCTION) AND UNCERTAINTY REGARDING 

FATE. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 5 8 MARINE DEBRIS MONTEREY CA DEAD PHOTOS SHOW BLACK LINE ENTANGLEMENT AROUND NECK. MODERATE DECOMPOSITION. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 5 10 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA DEAD 

DID NOT RESPOND DUE TO COVID-19 PANDEMIC. LEVEL 

A COMPLETED USING INFORMATION AND PHOTOS 

PROVIDED BY REPORTING PARTY. ANIMAL ENTANGLED 

AROUND NECK IN YELLOW ROPE STUCK ON PIER. 

ANIMAL APPEARS TO HAVE DIED VIA HANGING WHEN 

THE TIDE WENT OUT. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 5 19 SHOOTING SAN FRANCISCO CA DEAD 

SHOT IN THE HEAD AT LEAST TWICE. THREE HOLES 

TOTAL IN SKIN. ONE HOLE IN THE BONE AT THE TOP OF 

THE CRANIUM AND ONE MANDIBLE BROKEN 

COMPLETELY IN HALF. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 5 22 SHOOTING SANTA CRUZ CA DEAD 

ANIMAL HAD SMALL HOLE ON LEFT SIDE ON HEAD 

ABOVE THE EYE (~1 CM DIAMETER). WHEN SMALL HOLE 

WAS PROBED A FRACTURE IN THE SKULL WAS FOUND. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 5 24 SHOOTING SANTA CLARA CA DEAD BULLET / PELLET EXTRACTED FROM FACE. FACE WAS MORE DECOMPOSED THAN THE REST OF THE BODY. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 5 25 MARINE DEBRIS MONTEREY CA SI 

MODERATELY UNDERWEIGHT, LARGE PLASTIC BUCKET 

LID TYPE ENTANGLEMENT AROUND NECK, ABSCESS ON 

RIGHT SIDE OF FACE. ALIVE. FINAL OUTCOME 

UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 5 28 GILLNET FISHERY SAN DIEGO CA SI 

GILLNET AROUND NECK OF ANIMAL- ROLLING, CAUSING 

TRAUMA. STARTING TO BECOME EMBEDDED. ANIMAL IS 

ALSO THIN AND DEHYDRATED. ANIMAL TAKEN INTO 

CUSTODY BY OCEANSIDE LIFEGUARDS AND PICKED UP 

BY SEAWORLD SAN DIEGO RESCUE TEAM AT 

OCEANSIDE PIER, MAIN LIFEGUARD STATION. FINAL 

OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 5 29 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

SUCCESSFUL DISENTANGLEMENT OF GREEN LINE FROM 

FLIPPER TAG WHICH WAS DRAGGING ADDITIONAL 

FISHING LINE, ANIMAL IN GOOD BODY CONDITION, NO 

OBVIOUS INJURIES. 

NSI 

CALIFORNIA 

SEA LION U.S. 2020 6 1 SHOOTING CLALLAM WA SI 

PARALYZED SEA LION WITH GUNSHOT WOUND 

EUTHANIZED. PHOTOS SHOW LOCATIONS OF SHOTS ON 

BODY. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 6 4 HARASSMENT SAN DIEGO CA SI 

PUP ESTIMATED TO BE LESS THAN 48 HRS OLD WAS 

RELOCATED TO DIFFERENT AREA OF ROOKERY AFTER 

PEOPLE SAT WITH ANIMAL FOR PHOTOS AND 

CONTINUED TO HARASS IT. MATERNAL SEPARATION 

ASSUMED. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 6 11 HOOK AND LINE FISHERY SAN MATEO CA SI MODERATELY UNDERWEIGHT WITH FISH HOOKS IN FLIPPER AND ROOF OF MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2020 6 14 HOOK AND LINE FISHERY LOS ANGELES CA SI MALNOURISHED ANIMAL WITH FISHHOOK IN MOUTH AND SCAPULA. SI 

CALIFORNIA 

SEA LION U.S. 2020 6 24 SHOOTING SAN FRANCISCO CA SI LETHARGIC ANIMAL WITH METAL PELLETS FOUND IN HEAD AND NECK. SI 

CALIFORNIA 

SEA LION U.S. 2020 7 2 MARINE DEBRIS LOS ANGELES CA SI 

MALNOURISHED ANIMAL DESCRIBED AS ENTANGLED, 

BUT NO DESCRIPTION OF MATERIAL, NOR HEALTH 

STATUS. ASSUMED SERIOUS INJURY DUE TO BODY 

CONDITION. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 7 7 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI ANIMAL ENTANGLED IN NET AROUND HEAD AND NECK RESCUED AND DISENTANGLED. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 7 11 SHOOTING SAN FRANCISCO CA SI PALPABLE BUCKSHOT OVER LEFT LATERAL SIDE OF HEAD. LEFT EYE INJURED AND SHUT. SI 

CALIFORNIA 

SEA LION U.S. 2020 7 12 GILLNET FISHERY MONTEREY CA SI UNDERWEIGHT ANIMAL WITH GILLNET ENTANGLEMENT AND LACERATION AROUND NECK. NET ALSO IN MOUTH. SI 

CALIFORNIA 

SEA LION U.S. 2020 7 18 HOOK AND LINE FISHERY SAN DIEGO CA SI 

THIN ANIMAL WITH WOUND ON NECK, 7 FISHING HOOKS 

IN/ON BODY: ONE ON RIGHT FLIPPER, BACK, INSIDE JAW, 

DOWN THROAT. LATER VETS REMOVED TWO HOOK 

FROM STOMACH, AND 1 FROM ESOPHAGUS. FINAL 

OUTCOME UNKNOWN. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 8 5 SHOOTING SONOMA CA DEAD 

WOUND ON BACK EXPLORED SUPERFICIALLY AND 

FOUND TO HAVE TRACKED DOWN TO A BROKEN 

VERTEBRAL PROCESS. NO PROJECTILE RECOVERED 

DUE TO THE LACK OF NECROPSY RESOURCES AND 

LOCATION. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 8 5 MARINE DEBRIS LOS ANGELES CA SI MALNOURISHED ANIMAL ENTANGLED IN UNKNOWN MATERIAL. SI 

CALIFORNIA 

SEA LION U.S. 2020 8 6 SHOOTING SAN LUIS OBISPO CA SI 

LETHARGIC, MODERATELY UNDERWEIGHT, PUNCTURE 

WOUND ON RIGHT PELVIC LIMB FLIPPER, BULLET FOUND 

IN MOUTH AREA. BAD LOCATION - FOUND ON ROADWAY 

UNDER PARKED CAR. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 8 10 SHOOTING MENDOCINO CA DEAD SMALL ROUND PROJECTILE FOUND DURING SKULL PROCESSING. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 8 18 GILLNET FISHERY VENTURA CA DEAD 

REAR FLIPPER-30CM FISHING LINE/NET AROUND NECK 

WITH LARGE WOUND ON NECK. MODERATELY 

DECOMPOSED. 

DEAD 

CALIFORNIA 

SEA LION U.S. 2020 8 27 HOOK AND LINE FISHERY SAN DIEGO CA SI MONOFILAMENT LINE DEEPLY EMBEDDED AROUND NECK. SI 

CALIFORNIA 

SEA LION U.S. 2020 8 29 SHOOTING SAN MATEO CA SI LETHARGIC, COUGHING UP THICK MUCOUS, DISTENDED ABDOMEN, BULLET FOUND IN NECK SI 

CALIFORNIA 

SEA LION U.S. 2020 9 9 SHOOTING MONTEREY CA SI 

TRACKING WITH HEAD ONLY, 2 CM PUNCTURE WOUND 

OVER LEFT SHOULDER DUE TO GUNSHOT, ALERT AND 

RESPONSIVE. 

SI 

CALIFORNIA 

SEA LION U.S. 2020 9 21 HOOK AND LINE FISHERY SAN DIEGO CA SI HOOK THROUGH NOSE/MUZZLE. RELEASED ON SITE AFTER REMOVING. NSI 

CALIFORNIA 

SEA LION U.S. 2020 9 25 SHOOTING ISLAND WA DEAD TWO BULLETS FOUND IN HEAD DURING NECROPSY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 29 SHOOTING KING WA DEAD CARCASS FOUND AND BULLETS IDENTIFIED IN SKULL VIA RADIOGRAPHY. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 9 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 1 SHOOTING KING WA DEAD CARCASS WITH BULLETS FOUND IN SKULL VIA RADIOGRAPHY. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 2 SHOOTING MONTEREY CA SI LIVE ANIMAL TRACKING WITH HEAD ONLY, SEVERE HIND FLIPPER WOUNDS AND BULLET FOUND IN LUNG. SI 

CALIFORNIA 

SEA LION U.S. 2020 10 12 SHOOTING KING WA DEAD RADIOGRAPHY CONFIRMS THREE PROJECTILES IN SKULL. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 19 SHOOTING JEFFERSON WA DEAD RADIOGRAPH CONFIRMED SEA LION WAS SHOT. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 25 HOOK AND LINE FISHERY SAN DIEGO CA NSI HOOK AND TRAILING LINE FROM RIGHT FRONT FLIPPER. REMOVED AND RELEASED ON SITE. NSI 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 10 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 8 SHOOTING KING WA DEAD RADIOGRAPHY CONFIRMS SHOOTING. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 25 HOOK AND LINE FISHERY MONTEREY CA SI LETHARGIC, EMACIATED, FISHING HOOK EMBEDDED IN THE SKIN OF THE FACE. SI 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 11 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 12 4 SHOOTING KITSAP WA DEAD CONFIRMED SHOT ON X-RAYS LARGE FRAGMENTED PROJECTILE TRACKING FROM NASAL AREA INTO SKULL. DEAD 

CALIFORNIA 

SEA LION U.S. 2020 12 14 HOOK AND LINE FISHERY ORANGE CA SI A TAGGED ANIMAL WITH FISH HOOK IN ITS MOUTH WAS REPORTED IN THE BACK OF NEWPORT HARBOR SITTING ON KAYAK RENTALS. OUTCOME UNKNOWN. SI 

CALIFORNIA 

SEA LION U.S. 2020 12 17 SHOOTING SAN FRANCISCO CA SI LETHARGIC, MODERATELY UNDERWEIGHT, GUNSHOT WOUNDS TO ORAL CAVITY, NECK AND RIGHT PELVIC LIMB. SI 

CALIFORNIA 

SEA LION U.S. 2020 TROLL FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

CALIFORNIA 

SEA LION U.S. 2020 TROLL FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

CALIFORNIA TROLL FISHERY, U.S. 2020 DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

SEA LION TRIBAL 

CALIFORNIA TROLL FISHERY, U.S. 2020 DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

SEA LION TRIBAL 

CALIFORNIA TROLL FISHERY, U.S. 2020 DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

SEA LION TRIBAL 

COMMON 

DOLPHIN, CA-OR-WA 2016 2 16 GILLNET FISHERY SAN DIEGO CA DEAD 

LONG-BEAKED 

DEEP LACERATIONS WERE FOUND ON RIGHT AND LEFT 

PECTORAL FIN INSERTIONS. SUPERFICIAL LACERATIONS 

(EXPOSING BLUBBER BUT NOT MUSCLE) AND 

IMPRESSIONS WERE FOUND CIRCUMVENTING THE HEAD 

AND CRISS-CROSS ON THE VENTRUM BETWEEN THE DEAD 

PECTORAL FINS. ADDITIONAL IMPRESSIONS WERE 

FOUND ANTERIOR TO THE DORSAL FIN CIRCUMVENTING 

CAUDALLY. NO GEAR WAS FOUND ON THE ANIMAL. 

MARKS ON ANIMAL ARE CONSISTENT WITH GILLNET 

INTERACTION. 

NECROPSY REVEALED DEEP PENETRATING CHRONIC 

ENTANGLEMENT AROUND THE FLUKE, THE TISSUE WAS 

NECROTIC. IN ADDITION, THERE WERE DEEP CHRONIC COMMON HOOK AND LINE LACERATIONS THROUGH THE MOUTH. SOME LINE WAS DOLPHIN, CA-OR-WA 2016 2 17 SAN DIEGO CA SI DEAD 

FISHERY RECOVERED FROM WITHIN THE FLUKE TISSUE, NO LONG-BEAKED GEAR WAS FOUND IN THE MOUTH. ANIMAL WAS 

INITIALLY FOUND ALIVE BY SWIMMERS AND EXPIRED 

PRIOR TO ARRIVAL OF SEA WORLD PERSONNEL. 

DOLPHIN IN GOOD CONDITION - NO OBVIOUS SIGNS OF 

COMMON UNIDENTIFIED TRAUMA OTHER THAN A TEAR ON THE RIGHT FLIPPER, 

DOLPHIN, CA-OR-WA 2016 7 2 FISHERY VENTURA CA SI POSSIBLY FROM LINE AND MARKS ON ROSTRUM/MELON DEAD 

LONG-BEAKED INTERACTION THAT APPEAR TO BE FROM A PRIOR OR RECENT 

ENTANGLEMENT. 

COMMON LINEAR IMPRESSIONS ON HEAD, BODY, VENTRUM DOLPHIN, CA-OR-WA 2016 12 17 GILLNET FISHERY SAN DIEGO CA DEAD DEAD 

SLICED OPEN. LONG-BEAKED 

COMMON SANTA DOLPHIN, CA-OR-WA 2017 1 6 GILLNET FISHERY CA DEAD FLUKE CLEANLY AMPUTATED AT PEDUNCLE DEAD 

BARBARA LONG-BEAKED 

COMMON UNIDENTIFIED LINE ENTANGLEMENT SCAR ON ROSTRUM AND CRANIAL DOLPHIN, CA-OR-WA 2017 4 19 FISHERY SAN DIEGO CA DEAD DEAD 

TRAUMA FROM UNKNOWN SOURCE. LONG-BEAKED INTERACTION 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2017 6 6 GILLNET FISHERY SAN DIEGO CA DEAD 

MULTIPLE LINEAR IMPRESSIONS ON PECTORAL FINS, 

ROSTRUM, DORSAL FIN, VENTRUM, AND PEDUNCLE. TAIL 

STOCK SEVERED, FLUKES MISSING. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2017 6 9 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2017 6 16 GILLNET FISHERY ORANGE CA DEAD FLUKES CUT OFF. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2017 8 2 CA SPOT PRAWN TRAP FISHERY VENTURA CA DEAD 

ANIMAL OBSERVED DEAD BY CDFW WARDEN WITH 

FLOAT AND LINE WRAPPED AROUND IT. GEAR 

POSITIVELY-IDENTIFIED THROUGH LICENSE NUMBER ON 

GEAR. ANIMAL WAS IDENTIFIED AS GENERIC 'COMMON 

DOLPHIN', BUT THE LONG-BEAKED SPECIES IS THE 

PREDOMINANT SPECIES IN THIS AREA. ANIMAL 

DISENTANGLED FROM GEAR AND SET ADRIFT. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2017 11 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

LOS ANGELES CA DEAD GAFF HOOK USED TO REMOVE ANIMAL FROM FISHING GEAR. ANIMAL HAD STOMACH FULL OF MARKET SQUID. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2018 3 2 GILLNET FISHERY SAN DIEGO CA DEAD 

ONE OF THREE DOLPHINS FOUND FLOATING 3 MILES 

OFFSHORE BY U.S. BORDER PATROL. ANIMALS HAD 

LINEAR MARKS CONSISTENT WITH A MULTIFLIAMENT 

GILLNET ENTANGLEMENT. MESH SIZE WAS 

APPROXIMATELY 8 CM UNSTRETCHED, POSSIBLY 

SMALL-MESH DRIFT GILLNET ORIGIN. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2018 3 2 GILLNET FISHERY SAN DIEGO CA DEAD 

ONE OF THREE DOLPHINS FOUND FLOATING 3 MILES 

OFFSHORE BY U.S. BORDER PATROL. ANIMALS HAD 

LINEAR MARKS CONSISTENT WITH A MULTIFLIAMENT 

GILLNET ENTANGLEMENT. MESH SIZE WAS 

APPROXIMATELY 8 CM UNSTRETCHED, POSSIBLY 

SMALL-MESH DRIFT GILLNET ORIGIN. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CA-OR-WA 2018 3 2 GILLNET FISHERY SAN DIEGO CA DEAD 

ONE OF THREE DOLPHINS FOUND FLOATING 3 MILES 

OFFSHORE BY U.S. BORDER PATROL. ANIMALS HAD 

LINEAR MARKS CONSISTENT WITH A MULTIFLIAMENT 

GILLNET ENTANGLEMENT. MESH SIZE WAS 

APPROXIMATELY 8 CM UNSTRETCHED, POSSIBLY 

SMALL-MESH DRIFT GILLNET ORIGIN. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2018 3 3 GILLNET FISHERY SAN DIEGO CA DEAD ANIMAL BEACH-STRANDED IN SAME AREA AS 3-2-2018 CASES, WITH SIMILAR LINEAR NET MARK IMPRESSIONS. DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2018 3 8 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2018 8 8 GILLNET FISHERY SAN DIEGO CA DEAD FLUKES CUT OFF. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2018 11 5 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

ROSTRUM AND MANDIBLES BROKEN; NO SIGNIFICANT 

FINDINGS ON HISTOPATHOLOGY. THE ANIMAL HAD 

EXCELLENT BODY CONDITION. LOOKS AS THOUGH 

ANIMAL EXSANGUINATED; INDENTATIONS ON RIGHT 

FLIPPER AND ALONG PEDUNCLE; NO SIGNIFICANT 

PATHOLOGY. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 2 1 GILLNET FISHERY SAN DIEGO CA DEAD 

ONE OF TWO DOLPHINS STRANDING DEAD ON 

CONSECUTIVE DAYS IN SAME AREA WITH 

ENTANGLEMENT EVIDENCE. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 2 2 GILLNET FISHERY SAN DIEGO CA DEAD 

ONE OF TWO DOLPHINS STRANDING DEAD ON 

CONSECUTIVE DAYS IN SAME AREA WITH 

ENTANGLEMENT EVIDENCE. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 2 15 GILLNET FISHERY SAN DIEGO CA DEAD TWO 0.5 WIDE IMPRESSIONS CROSSING OVER ROSTRUM. CONSISTENT WITH GILLNET ENTANGLEMENT. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 4 29 GILLNET FISHERY SANTA BARBARA CA DEAD INCISIONS FROM AXILLARY TO ANUS EXPOSING ABDOMINAL CAVITY. CONSISTENT WITH INJURIES RESULTING FROM CUTTING ANIMAL OUT OF NET. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 5 24 GILLNET FISHERY VENTURA CA DEAD MISSING FLUKE, CUT OFF. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 6 16 GILLNET FISHERY SANTA BARBARA CA DEAD 

FLUKES CUT OFF AND LINEAR IMPRESSIONS AROUND 

MANDIBLE. LEVEL A DATA COLLATED THROUGH 

PHONE CONVERSATION AND PHOTOS SENT BY 

REPORTING MARINER. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 6 22 GILLNET FISHERY SAN DIEGO CA DEAD 

TWO LINEAR IMPRESSIONS ACROSS RIGHT TAIL STOCK, 

FULL STOMACH, AND ROBUST BODY CONDITION 

INDICATE THIS TO BE A FISHERY INTERACTION. 

LACTATING. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 7 17 GILLNET FISHERY SAN DIEGO CA DEAD LINEAR IMPRESSIONS ACROSS ROSTRUM, HEAD,DORSAL FIN, AMPUTATED FLUKES. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 8 9 GILLNET FISHERY SAN DIEGO CA DEAD 

AMPUTATION OF LEFT FLUKE LOBE, LINEAR 

IMPRESSIONS ACROSS MANDIBLE, ROSTRUM, 

PECTORAL AND DORSAL FIN. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2019 8 16 GILLNET FISHERY SAN DIEGO CA DEAD 

LINEAR IMPRESSIONS ALONG VENTRAL ROSTRUM, 

PECTORAL AND DORSAL FINS, ACROSS FLANK, AND 

BOTH FLUKE LOBES AMPUTATED. 

DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2020 1 17 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2020 1 17 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2020 5 3 GILLNET FISHERY SANTA BARBARA CA DEAD MODERATELY DECOMPOSED ANIMAL WITH FLUKES CUT OFF, CHARACTERISTIC OF ANIMAL CUT OUT OF NET. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2020 5 18 GILLNET FISHERY SANTA BARBARA CA DEAD MODERATELY DECOMPOSED ANIMAL WITH FLUKES CUT OFF, CHARACTERISTIC OF ANIMAL CUT OUT OF NET. DEAD 

COMMON 

DOLPHIN, 

LONG-BEAKED 

CALIFORNIA 2020 5 26 GILLNET FISHERY SANTA BARBARA CA DEAD MODERATELY DECOMPOSED ANIMAL WITH FLUKES CUT OFF, CHARACTERISTIC OF ANIMAL CUT OUT OF NET. DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2016 10 25 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2016 10 26 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2016 12 5 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2016 12 22 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 6 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 7 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 7 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 7 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 8 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 8 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 1 18 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 3 7 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 5 4 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 11 10 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 11 12 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 11 14 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 11 14 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 11 19 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 12 1 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 12 1 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 12 1 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2017 12 1 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2018 1 13 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2018 6 5 GILLNET FISHERY VENTURA CA DEAD TAIL APPEARED TO BE CUT OFF, SUSPECTED GILLNET INTERACTION. DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2018 12 9 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 11 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 11 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 13 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 13 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 13 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 21 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 21 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 27 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 1 27 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2019 11 7 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2020 1 4 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2020 1 12 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

SHORTBEAKED CA-OR-WA 2020 1 12 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

COMMON 

DOLPHIN, 

UNIDENTIFIED 

2018 1 13 MARINE DEBRIS ORANGE CA SI 

FISHERMEN DISENTANGLED A LETHARGIC DOLPHIN 

THAT HAD LINE WRAPPED AROUND AND CUTTING INTO 

THE FLUKES. CONDITION OF ANIMAL INDICATES A 

SERIOUS INJURY. ENTANGLING MATERIAL UNKNOWN. 

SI 

COMMON 

DOLPHIN, 

UNIDENTIFIED 

2019 6 16 GILLNET FISHERY SANTA BARBARA CA DEAD 

FLUKE BLADES CLEANLY CUT OFF, AS IF WITH A KNIFE. 

ALSO SEVERAL MONO-FILAMENT NET WOUNDS AND 

SOME MONO-FILAMENT STILL VISIBLE ON THE ANIMAL. 

NO STRANDING RESPONSE INITIATED. 

DEAD 

COMMON 

DOLPHIN, 

UNIDENTIFIED 

2019 11 7 GILLNET FISHERY SANTA BARBARA CA SI 

LETHARGIC DOLPHIN ENTANGLED IN YELLOW 3/8 IN 

POLYPRO LINE, ENTANGLED AROUND ITS MOUTH, BACK 

AND PECTORAL FLIPPERS. IT WAS DRAGGING A MASS 

OF LINE BEHIND IT. AFTER A FEW HEAD THRASHES BY 

THE DOLPHIN, AND SOME CUTTING OF THE LINE BY THE 

CREW, THE DOLPHIN WAS EVENTUALLY FREED FROM 

THE ROPE ENTANGLEMENT. THE CREW WERE ABLE TO 

CUT THE ANIMAL FREE AND RELEASE IT UNHARMED. 

NSI 

DALL'S 

PORPOISE CA-OR-WA 2016 6 19 GILLNET FISHERY SAN JUAN WA DEAD 

LACERATION ON FLUKE; LEFT SIDE OF TAIL HAS LINE 

INDENTATION FROM A NET ENTANGLEMENT; RIGHT SIDE 

OF FLUKE NOTCH HAS LINE FROM A NET 

ENTANGLEMENT. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

DALL'S 

PORPOISE CA-OR-WA 2019 8 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

FIN WHALE CA-OR-WA 2017 1 5 VESSEL STRIKE ALAMEDA CA DEAD 

ANIMAL FIRST REPORTED OFF YERBA BUENA ISLAND BY 

USCG, WHEN A VESSEL APPEARED TO HAVE A CARCASS 

WRAPPED AROUND ITS BOW. THE CARCASS FELL OFF 

AS THE VESSEL TURNED TO APPROACH THE CHANNEL. 

CARCASS WAS THEN SEEN AGAIN FLOATING IN 

OAKLAND HARBOR. FRACTURED RIBS WERE IDENTIFIED 

VIA NECROPSY AND CAUSE OF DEATH ATTRIBUTED TO 

VESSEL STRIKE. 

DEAD 

FIN WHALE CA-OR-WA 2017 5 12 VESSEL STRIKE PIERCE WA DEAD 

FRESHLY-DEAD WHALE FOUND ON THE BOW OF A 

VESSEL AS IT APPROACHED COMMENCEMENT BAY. THIS 

WHALE WAS IN GOOD BODY CONDITION. THERE WAS A 

SIGNIFICANT AMOUNT OF HEMORRHAGE ALONG THE 

MID-BACK, WHICH WAS DETERMINED TO BE THE IMPACT 

POINT OF THE SHIP WHILE THE WHALE WAS STILL ALIVE. 

DEAD 

FIN WHALE CA-OR-WA 2018 5 16 VESSEL STRIKE ALAMEDA CA DEAD DEAD WHALE DRAPED ACROSS THE BOW OF A LARGE SHIP ENTERING THE BAY. DEAD FIN WHALE CA-OR-WA 2018 5 22 VESSEL STRIKE MARIN CA DEAD 

NECROPSY REPORT AND PHOTOS NOTE EXTENSIVE 

MUSCLE HEMMORHAGING, FRACTURES TO SKULL, RIBS, 

AND VERTEBRAE, CONSISTENT WITH VESSEL STRIKE. 

DEAD 

FIN WHALE CA-OR-WA 2018 5 24 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA 

BARBARA CA SI 

A BALL OF DARK ROPE ON THE BACK POSTERIOR TO 

BLOWHOLE THAT LEADS TO THE HEAD AND MOUTH 

AREA. ROPE APPEARED TIGHT (=CONSTRICTING 

ENTANGLEMENT). AMOUNT AND CONFIGURATION OF 

GEAR UNKNOWN. 

SI 

FIN WHALE CA-OR-WA 2018 10 8 VESSEL STRIKE LOS ANGELES CA DEAD 

CAME IN DEAD ON BOW OF VESSEL. LARGE IMPACT 

WOUND ON RIGHT SIDE OF BODY BEHIND PECTORAL 

FLIPPER. JAWS BEGINNING TO TEAR APART. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2016 2 5 UNIDENTIFIED FISHERY INTERACTION ORANGE CA SI (PRORATE) ENTANGLED IN ROPE, A SINGLE WHITE BUOY. TRAVELING WITH OTHER WHALES SOUTHBOUND. GEAR CONFIGURATION AND AMOUNT UNKNOWN. SI (PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2016 3 24 VESSEL STRIKE SAN DIEGO CA DEAD 

"S" SHAPED LACERATIONS ALONG LEFT LATERAL SIDE 

AT ABDOMINAL (6) AND PEDUNCLE (6)INDICATE THIS 

ANIMAL WAS HIT BY A SHIP, ALTHOUGH IT IS NOT CLEAR 

IF THIS HAPPENED BEFORE OR AFTER DEATH. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2016 4 21 UNIDENTIFIED FISHERY INTERACTION ORANGE CA SI 

JUVENILE OR CALF SWIMMING NORTH WITH YELLOW 

LINE, MULTIPLE WRAPS AROUND TAIL STOCK, OVER 

FLUKES, 2 WHITE BULLET BUOYS AT BASE OF TAIL 

STOCK, LINE TRAILING WHALE 50 FEET. EXTENSIVE 

WRAPS LIKELY TO BECOME CONSTRICTING AS ANIMAL 

GROWS. CONFIGURATION AND AMOUNT OF GEAR 

UNKNOWN. 

SI 

UNIDENTIFIED EASTERN N SI GRAY WHALE 2016 4 22 FISHERY ORANGE CA PACIFIC (PRORATE) INTERACTION 

LINE WRAPPED AROUND THE BASE OF THE FLUKES; 

WHITE BUOY AT BASE OF TAIL, TRAILING LINE APPEARS 

TO BE 15-20 FEET LONG, NO FLOATS ATTACHED TO 

TRAILING LINE [NOT SAME WHALE AS 20160421ER, 

BASED OFF COMPARISON OF VIDEO TO PHOTOS, BODY 

SIZE, SWIMMING PATTERN, COLOR PATTERN]. ANIMAL 

DESCRIBED AS MOVING NORTH AT 2-3KTS AND NOT 

USING ITS FLUKES VERY MUCH. EVIDENCE OF 

CONSTRICTING ENTANGLEMENT BASED ON LIMITED USE 

OF FLUKES. 

SI 

(PRORATE) 

USCG MOTOR LIFEBOAT STRUCK A GRAY WHALE WHILE 

EASTERN N TRAVELING AT APPROXIMATELY 10 KNOTS. FOLLOWING 

GRAY WHALE PACIFIC - 2016 7 22 VESSEL STRIKE LINCOLN OR NSI COLLISION, WHALE POPPED ITS HEAD ABOVE THE NSI 

PCFG SURFACE AND THEN DOVE. USCG MOTOR LIFEBOATS 

ARE APPROXIMATELY 45 FT IN SIZE. 

EASTERN N MULTIPLE DEEP CUTS INTO LEFT THORAX AND 

GRAY WHALE PACIFIC - 2016 8 1 VESSEL STRIKE CURRY OR DEAD ABDOMEN CLEARLY INDICATE PROPELLER WOUNDS. DEAD 

PCFG MODERATELY-DECOMPOSED CALF. 

TIGHT MULTIPLE WRAPS AROUND TAILSTOCK RIGHT AT 

THE FLUKE INSERTION WITH 3 LINES CUTTING INTO THE 

LEADING EDGES OF THE FLUKES AND TRAILING OVER 

THE TOP OF THE FLUKES. THE REST OF LINES WRAPPED 

AROUND PEDUNCLE GO UNDER THE TAIL AND TRAIL 

APPROX. 50-75 FEET BEHIND THE WHALE. PARTIAL 

DUNGENESS CRAB DISENTANGLEMENT RESCUE AND RESIGHT OF ANIMAL EASTERN N GRAY WHALE 2017 1 28 POT FISHERY LOS ANGELES CA SI NEXT DAY INDICATED BUOYS HAD MOVED FURTHER SI 

PACIFIC (CALIFORNIA) BACK TOWARD TAIL. ANIMAL WAS USING ITS PECTORAL 

FLIPPERS FOR SWIMMING PRIMARILY. ASSIGNED 

SERIOUS INJURY UNDER L2 DUE TO CONSTRICTING 

NATURE OF GEAR REMAINING ON ANIMAL AND 

APPARENT INABILITY TO FULLY-UTILIZE ITS FLUKES. 

EVIDENCE OF HEALTH DECLINE INDICATED BY LIMITED 

FLUKE MOBILITY. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2017 1 29 VESSEL STRIKE ORANGE CA SI 

A 65FT COASTAL CRUISER STRUCK A WHALE WHILE 

TRANSITING BETWEEN NEWPORT HARBOR AND DANA 

POINT HARBOR, 2 NM NW OF DANA POINT HARBOR. 

INJURED GRAY WHALE IS REPORTED ALIVE AND 

APPEARS TO HAVE THE FOLLOWING INJURIES: 3 DEEP 

LACERATIONS NEAR ITS PECTORAL FIN. LOTS OF BLOOD 

IN WATER. 

SI 

GRAY WHALE EASTERN N PACIFIC 2017 2 12 UNIDENTIFIED FISHERY INTERACTION SAN DIEGO CA SI (PRORATE) ENTANGLED WHALE HAD WOOD-LIKE FLOAT TRAILING 30 YARDS BEHIND. WHALE BREACHING FOR 10-15 MIN BEFORE MOVING ON WITH OTHER WHALES. GEAR TYPE AND CONFIGURATION UNKNOWN. SI (PRORATE) GRAY WHALE EASTERN N PACIFIC 2017 3 12 UNIDENTIFIED FISHERY INTERACTION SAN DIEGO CA SI (PRORATE) 

FREE-SWIMMING WHALE TRAILING A SINGLE BUOY 

APPROXIMATELY 10 FEET BEHIND ANIMAL. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. ANIMAL 

RESIGHTED NEXT DAY, 15 NMI NW OF PREVIOUS DAY'S 

POSITION, STILL TRAILING BUOY, NOT RAISING FLUKES 

ABOVE WATER DURING SEVERAL SURFACING CYCLES. 

SI 

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2017 3 19 GILLNET FISHERY ORANGE CA SI 

WHALE SWIMMING WITH MASS OF BLUE ROPE, PINK 

GILLNET, AND BLACK FLOATS AROUND FLUKES. CLOSEUP PHOTO SHOWS OPEN WOUND WHERE BLUE ROPE 

AND FLOATS ARE ATTACHED. CONSTRICTING 

ENTANGLEMENT. SERIOUS INJURY BECAUSE OPEN 

WOUND HAS POTENTIAL TO BECOME NECROTIC. 

SI 

GRAY WHALE EASTERN N PACIFIC 2017 3 28 GILLNET FISHERY ORANGE CA SI (PRORATE) 

PINK MONOFILAMENT NETTING ON HEAD, EXTENDING 

BACK PAST BLOWHOLES AND DOWN LEFT SIDE OF 

ANIMAL TO WATERLINE. MONOFILAMENT NETTING 

WOUND ON ITSELF. WHALE IS RAISING ITS FLUKES 

DURING DIVE CYCLES. TOTAL AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2017 4 1 MARINE DEBRIS ORANGE CA SI 

GRAY WHALE SWIMMING WITH LARGE METAL FRAME 

AROUND HEAD, JUST POSTERIOR TO BLOWHOLES. 

FRAME IS FIRMLY ATTACHED TO WHALE AND IS 

CONSIDERED TO BE A SERIOUS INJURY DUE TO THE 

CONSTRICTING NATURE OF THE ENTANGLEMENT AND 

PROBABILITY OF PREVENTING THE WHALE FROM 

FEEDING PROPERLY. WHALE RESIGHTED 9 DAYS LATER 

AS IT MOVED NORTH ALONG THE COAST. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2017 4 15 GILLNET FISHERY ORANGE CA SI 

BLUE LINE ON TAIL WITH KELP, 6 INCH MESH GILLNET 

WRAPPED AROUND TAILSTOCK AND LEADING EDGE OF 

FLUKE; RIGHT TIP OF FLUKE BROKEN OFF AND 

POSSIBLE NECROTIC TAIL. SWIMMING SLOWLY, MOSTLY 

WITH PECTORAL FLIPPERS, SURFACING HEADFIRST AND 

NO FLUKE UP DIVING. WHALE DISENTANGLEMENT TEAM 

REMOVED OVER 100 FEET OF GILLNET (=RESCUE). 

THERE IS STILL SOME WEBBING AND LINE REMAINING 

ON FLUKES. CONSIDERED SERIOUS INJURY DUE TO 

ORIGINAL AND POSSIBLY CONTINUING CONSTRICTING 

NATURE OF ENTANGLEMENT. 

SI 

GRAY WHALE EASTERN N PACIFIC 2017 4 16 UNIDENTIFIED FISHERY INTERACTION LOS ANGELES CA SI (PRORATE) ORANGE LINE WRAPPED AROUND CAUDAL PEDUNCLE. UNKNOWN GEAR CONFIGURATION AND AMOUNT. SI (PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2017 4 19 UNIDENTIFIED FISHERY INTERACTION SAN LUIS OBISPO CA SI CALF OF PAIR ENTANGLED WITH YELLOW / ORANGE ROPE OVER BACK. WHITE LINE DRAPED OVER UPPER TAILSTOCK. GEAR AMOUNT AND CONFIGURATION UNKNOWN. SI 

GRAY WHALE EASTERN N PACIFIC 2017 4 21 UNIDENTIFIED FISHERY INTERACTION ORANGE CA SI (PRORATE) BLUE ROPE GEAR TRAILING 5 FEET, SMALL BLUE BUOYS. GEAR CONFIGURATION AND AMOUNT UNKNOWN. SI (PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2017 4 28 DUNGENESS CRAB POT FISHERY (WASHINGTON) PACIFIC WA DEAD 

GEAR FROM MULTIPLE POTS WRAPPED AROUND 

CAUDAL PEDUNCLE OF DEAD, FLOATING MALE CALF OF 

THAT YEAR (20 FEET IN LENGTH). FISHERY SOURCE 

BASED ON GEAR TAGS RETRIEVED FROM WHALE. 

NECROPSY DETERMINED ENTANGLEMENT AS CAUSE OF 

DEATH. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2017 6 12 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS 

HARBOR WA DEAD 

SEVERE ENTANGLEMENT INJURIES ON TAILSTOCK AND 

FLUKE. DEEP CUTS FROM LINES ON EACH SIDE OF 

FLUKE INSERTION, WRAP INJURY WITH ABRAIDED 

TISSUE CUTTING DEEP INTO RIGHT FLUKE (2/3 TOWARD 

TIP). POSSIBLE IMPRESSIONS ACROSS HEAD. EVIDENCE 

OF CONSTRICTING ENTANGLEMENT. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2017 6 15 GILLNET FISHERY LAKE AND PENINSULA BOROUGH AK SI (PRORATE) 

GRAY WHALE WITH FISHING LINE ENTANGLED AROUND 

TAIL. IT WAS SWIMMING BUT SLOWLY NEAR FISHING 

BOATS BY THE MOUTH OF THE LAGOON. SMALL GRAY 

WHALE, POSSIBLY SUBADULT. GEAR DESCRIBED AS 

FISHING NET WITH BLACK FLOATS. NET WRAPPED 

AROUND FLUKE. ASSIGNED PRORATED SERIOUS INJURY 

DUE TO UNKNOWN AMOUNT AND CONFIGURATION OF 

GEAR. 

SI 

(PRORATE) 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2017 7 29 ILLEGAL HUNT BETHEL AK DEAD KILLED AND HARVESTED BY LOCALS ON THE KUSKOWIM RIVER. DEAD GRAY WHALE EASTERN N PACIFIC 2017 11 8 UNIDENTIFIED FISHERY INTERACTION VENTURA CA DEAD DEAD ANIMAL WITH ROPE, NETTING AND WIRE IN MOUTH. DEAD 

GRAY WHALE EASTERN N PACIFIC 2017 12 11 GILLNET FISHERY ORANGE CA SI (PRORATE) 

YELLOW ROPE ON TAIL AND TRAILING 100 FEET BEHIND 

WHALE; RESPONSE EFFORTS CONFIRMED 8 INCH PINK 

MONOFILAMENT GILLNET WRAPPED AROUND TAIL, 

INCLUDING MULTIPLE BLACK FLOATS, YELLOW AND 

BLACK ROPE. ANIMAL SWIMMING SLOWLY NORTH AND 

DIVING. INTERVENTION RESPONSE RESULTED IN THE 

CUTTING AND REMOVAL OF SOME GEAR. WHALE WAS 

LOST AFTER THIS INTERVENTION AND REMAINING GEAR 

AMOUNT AND CONFIGURATION IS UNKNOWN. 

SI 

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2018 1 29 CA SWORDFISH DRIFT GILLNET FISHERY OFFSHORE CA DEAD OBSERVER PROGRAM. DEAD WHALE ENTANGLED IN LARGE-MESH DRIFT GILLNET. DEAD GRAY WHALE EASTERN N PACIFIC 2018 2 21 UNIDENTIFIED FISHERY INTERACTION ORANGE CA SI 

LINE ENTANGLED AROUND THE BASE OF THE PEDUNCLE 

AND OVER THE FLUKE. LINE APPEARS TO BE CUTTING 

INTO PEDUNCLE TISSUE (=CONSTRICTING). REPORTING 

PARTY NOTED THAT LINE HAD SOME TENSION AND MAY 

HAVE BEEN CARRYING SOME WEIGHT. EVIDENCE OF 

TRAILING GEAR. ANIMAL BODY CONDITION LOOKED 

GOOD FROM PHOTOGRAPHS. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI 

GRAY WHALE EASTERN N PACIFIC 2018 2 21 UNIDENTIFIED FISHERY INTERACTION MONTEREY CA SI (PRORATE) SINGLE RED - ORANGE BUOY TRAILED RELATIVELY CLOSE BEHIND WHALE. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) GRAY WHALE EASTERN N PACIFIC 2018 3 3 GILLNET FISHERY VENTURA CA SI (PRORATE) 

BLUE MESH GILLNET WRAPPED AROUND CAUDAL 

PEDUNCLE OF SWIMMIMG WHALE, WITH 4 TO 5 SMALL, 

RED BULLET BUOYS ASSOCIATED. MESH SIZE DIFFICULT 

TO DETERMINE AS PHOTOS WERE TAKEN FROM 

OBSERVER ON SHORE. GEAR AMOUNT AND 

CONFIGURATION UNKNOWN. . 

SI 

(PRORATE) 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2018 3 18 VESSEL STRIKE LOS ANGELES CA SI 

FERRY STRUCK WHAT THEY BELIEVED TO BE A GRAY 

WHALE MID CHANNEL ON THE WAY TO CATALINA. THE 

CAPTAIN SAID THAT THE WHALE SURFACED ABOUT 20 

FT IN FRONT OF THE BOAT WHEN IT WAS TRAVELING AT 

APPROXIMATELY 25 KTS SO THERE WAS NO WAY TO 

STOP OR AVOID THE COLLISION. VESSEL SIZE = 134 FT. 

HE DID INDICATE THAT THERE WAS SOME DAMAGE TO 

THE BULBOUS BOW AND THAT HE BELIEVED THE WHALE 

WAS INJURED BUT ALIVE AFTER THE CONTACT. 

CATEGORIZED AS SERIOUS INJURY BASED ON SIZE AND 

SPEED OF VESSEL. 

SI 

GRAY WHALE EASTERN N PACIFIC 2018 3 26 VESSEL STRIKE SAN DIEGO CA DEAD 

ORGANS PROTRUDING THROUGH LACERATION AT RIGHT DORSAL SIDE AT MID-LENGTH. FRACTURED 

VERTEBRAE AND BONE FRAGMENTS IN THIS REGION. 

UNKNOWN IF THIS VESSEL STRIKE REPRESENTS SAME 

ANIMAL STRUCK OFF CATALINA ISLAND ON 3/18/2018. 

TREATED AS UNIQUE RECORD. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2018 3 28 MARINE DEBRIS MARIN CA DEAD 

OBSERVED FLOATING IN RICHARDSON BAY MARCH 28 

2018. FLUKES AND DISTAL PENDUNCLE MISSING. WITHIN 

A PORTION OF GRAY NECROTIC TISSUE IS A 6-INCH 

LENGTH OF WIRE WITH A COPPER CORE, DEEPLY 

ENTWINED WITH THE NECROTIC TISSUE. THIS REFLECTS 

EVIDENCE OF A CONSTRICTING ENTANGLEMENT. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2018 4 13 DUNGENESS CRAB POT FISHERY (WASHINGTON) PACIFIC WA SI 

WHALE HAD BEEN SIGHTED ALIVE NINE DAYS PRIOR TO 

STRANDING RESPONSE. WHALE ENTANGLED IN 

WASHINGTON DUNGENESS CRAB POT GEAR IDENTIFIED 

BY TAG NUMBERS RECOVERED AT SCENE. BUOY AT 

LEFT MOUTH, LINE THROUGH MOUTH CIRCLING RIGHT 

FLIPPER ACROSS BACK TO LEFT PEDUNCLE (THIS IS THE 

CONFIGURATION FOUND WHEN THE ANIMAL STRANDED 

DEAD ONSHORE, LIKELY DIFFERENT WHEN THE ANIMAL WAS ALIVE). BRUISING AROUND PEDUNCLE WHICH MAY 

SUGGEST IT WAS ENTANGLED AT SOME POINT IN TIME. 

CAUSE OF DEATH LISTED AS INANATION (=STARVATION). 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

DUNGENESS CRAB EASTERN N SI GRAY WHALE 2018 4 13 POT FISHERY SNOHOMISH WA PACIFIC (PRORATE) (WASHINGTON) 

BUOY AND LINE ENTERING MOUTH LEFT SIDE AND 

EXITING MOUTH RIGHT SIDE. THIS TRAILS TO A SECOND 

BUOY JUST IN FRONT OF THE FLUKES. THEY ARE BOTH 

TRAILER BUOYS PART OF THE SURFACE SYSTEM OF A 

CRAB SET. LINE 3/8" POSSIBLY BLUE STEEL. GEAR 

IDENTIFIED AS PART OF WASHINGTON COMMERCIAL 

DUNGENESS CRAB FISHERY. TEAM SUCCESSFULLY 

ATTACHED A TELEMETRY BUOY AND COLLECTED 

UNDERWATER FOOTAGE. RESPONDER RETRIEVED OUR 

GRAPPLE, OUR LINE AND TELEMETRY BUOY AND ONE 

OF THE ENTANGLING FLOATS FROM ANOTHER VESSEL. 

THIS MEANS THE WHALE IS PARTIALLY DISENTANGLED. 

UNKNOWN AMOUNT AND CONFIGURATION OF GEAR 

REMAINING ON WHALE. PHOTOS OF WHALE SHOW A 

VERY EMACIATED ANIMAL THAT EXHIBITS A HEALTH 

DECLINE. SERIOUS INJURY PRORATED TO A VALUE OF 1 

DUE TO DETERIORATING HEALTH. 

SI 

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2018 4 15 GILLNET FISHERY SAN DIEGO CA SI (PRORATE) 

GILLNET ON THE HEAD AND DOWN ALONG THE BODY, 

WITH A MASS OF GILLNET ON OR NEAR THE TAIL. 

SINGLE PHOTO SHOWS MASS OF PINK MONOFILAMENT 

GILLNET EXTENDING FROM HEAD REGION TO DORSAL 

HUMP. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. WHALE REPORTED SWIMMING TO THE 

NORTHWEST. 

SI 

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2018 4 24 GILLNET FISHERY ORANGE CA SI 

GILLNET (PINK MESH, 1/2 GREEN ROPE, 20 SMALL 

RED/ORANGE FLOATS) WRAPPED AROUND PEDUNCLE 

AND TRAILING OVER LEFT FLUKE LOBE. MOST OF THE 

GEAR IS BUNCHED UP IN A TIGHT BALL AROUND THE 

PEDUNCLE, CLOSE TO THE ANIMAL AND FAIRLY TIGHT 

AROUND PEDUNCLE (=CONSTRICTING GEAR). THERE IS 

ALSO SOME TRAILING GEAR (TANGLED UP MESH AND 

PROBABLY A LEAD LINE) TRAILING ABOUT 20FT BEHIND 

WHALE. THE TRAILING GEAR IS ALWAYS BELOW THE 

SURFACE. SO LIKELY THE TRAILING GEAR IS WEIGHTED 

SOMEHOW OR BEEN FOULED UP ALONG THE WAY. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI 

GRAY WHALE EASTERN N PACIFIC 2018 5 4 VESSEL STRIKE ALAMEDA CA DEAD 

NECROPSY RESULTS INDICATED A FRACTURED 

CRANIUM AND MUSCULAR AND SKELETAL 

HEMORRHAGING. CONSISTENT WITH BLUNT FORCE 

TRAUMA CHARACTERISTIC OF A VESSEL STRIKE. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2018 5 6 DUNGENESS CRAB POT FISHERY (CALIFORNIA) SAN LUIS OBISPO CA DEAD 

PHOTOS FROM 5/6/2018 SHOWS A SINGLE ORANGE 

BUOY NEXT TO A HEAVILY-SCAVENGED GRAY WHALE 

CARCASS. BUOY NUMBER OBTAINED AND FISHERMAN 

INTERVIEWED. FISHERMAN INDICATED HIS GEAR WAS 

NOT TOUCHING WHALE AND FISHERMAN REMOVED 

GEAR FROM AREA AFTER SEEING PHOTOS OF WHALE. NO EXPLICIT PHOTO EVIDENCE THAT BUOY OR LINE IS 

ATTACHED TO CARCASS, HOWEVER, HARBOR PATROL 

WENT TO SAME EXACT LOCATION THE NEXT DAY AND 

FOUND THE CARCASS UNMOVED, INDICATING IT WAS 

ANCHORED BY SOMETHING. BUOY WAS NO LONGER 

VISIBLE ON 5/7/2018. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2018 5 8 DUNGENESS CRAB POT FISHERY (WASHINGTON) CLALLAM WA SI 

ANCHORED WHALE WITH LINE WRAPPED AROUND THE 

PEDUNCLE AND BOTH FLUKE BLADES WITH THREE 

FLOATS AND LINE TRAILING TO APPROXIMATELY 60’ 

BEHIND THE WHALE. TEAM WAS ABLE TO CUT MOST 

LINE AWAY BUT SEVERAL WRAPS REMAINED AROUND 

NECROTIC TISSUE AT CAUDAL PEDUNCLE. THIS WHALE 

WAS FOUND DEAD STRANDED ON MAY 27TH. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2018 5 11 SALMON GILLNET FISHERY CORDOVA AK SI (PRORATE) WHALE ENTANGLED IN SALMON GILLNET. VISIBLE BLOOD FLOW. GEAR AMOUNT AND CONFIGURATION UNKNOWN. OUTCOME UNKNOWN. SI (PRORATE) GRAY WHALE EASTERN N PACIFIC 2018 5 17 VESSEL STRIKE SANTA CRUZ CA DEAD PROPELLER WOUNDS NEAR TAIL. DEAD GRAY WHALE EASTERN N PACIFIC 2018 5 18 VESSEL STRIKE MARIN CA DEAD 

PALE DISCOLORED BAND OF SKIN AROUND THE NECK 

APPROX. 20 CMS WIDE, BLUBBER BENEATH THIS 

DISCOLORED AREA HAS SMALL PATCHES OF 

HEMORRHAGE. THE LEFT AXILLA HAS A LACERATION 

AROUND THE FLIPPER BASE, WITH DISCOLORED 

MUSCLE AND EDEMA BENEATH IT. SKIN OF THE LEFT 

FLIPPER IS DRY AND MISSING IN MULTIPLE PLACES. 

LEFT COMMISSURE OF THE MOUTH HAS A PALE LINEAR 

MARK IN IT, AND IS COVERED IN LICE. RIGHT SIDE OF 

THE WHALE HAS TWO LONG PARALLEL LACERATIONS, 

ONE PENETRATES SCAPULA WHICH SHATTERED 

(MULTIPLE FRACTURES, COMMINUTED FRACTURES), 

OTHER IS THROUGH BLUBBER AND MUSCLE. THERE IS 

NO HEMORRHAGE OR DISCOLORATION OF BLUBBER OR 

MUSCLE ADJACENT TO THESE LACERATIONS. THERE 

ARE MULTIPLE LINEAR MARKS ON THE SKIN TYPICAL OF 

ABRASION BY A BRAIDED LINE. NECROPSY REPORT 

INDICATED THAT VESSEL STRIKE WAS PRIMARY CAUSE 

OF DEATH (COMPARED WITH ENTANGLEMENT 

EVIDENCE), AS CONDITION OF ANIMAL IS GOOD 

(ADEQUATE BODY FAT STORES) AND STOMACH WAS 

FULL. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2018 5 27 UNIDENTIFIED POT/TRAP FISHERY ENTANGLEMENT PACIFIC WA DEAD 

LINE WRAPPED TIGHTLY AROUND LEFT PECTORAL 

FLIPPER AND PASSES THROUGHT LEFT GAPE. 

EVIDENCE OF A WRAP AROUND THROAT (BLOATING 

LIKELY CAUSED ROPE TO SNAP--FRAYED ENDS VISIBLE). 

GREEN, ORANGE, AND WHITE LINES WRAPPED AROUND 

TAILSTOCK. FAINT IMPRESSIONS ACROSS VENTRAL 

LEFT FLUKE. TRAILING 2 CRAB POTS. ORIGINALLY SEEN 

WITH 2 ORANGE BUOYS (WHILE FLOATING), ONE VISIBLE 

IN INITIAL PHOTOS OF THE BEACH LANDING, BUT HAD 

BEEN REMOVED BY UNKNOWN PERSONS PRIOR TO OUR 

ARRIVAL ON SCENE. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2018 6 6 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

LINCOLN OR SI (PRORATE) 

ENTANGLEMENT LOCATED ON THE CENTER OF THE 

BODY AND ON THE TAIL WHILE TRAILING TWO BUOYS 

AND CRAB POT GEAR. COMMERCIAL DUNGENESS CRAB 

GEAR WAS IDENTIFIED BY THE ROUND YELLOW TAG ON 

ONE BUOY BUT THE PHOTO QUALITY WAS POOR SO A 

NUMBER COULD NOT BE READ TO GET A FISHERMAN ID. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI

(PRORATE) 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2018 6 28 VESSEL STRIKE GRAYS HARBOR WA SI 

EMACIATED WHALE LIVE-STRANDED AND 

SUBSEQUENTLY DIED. LARGE AREA OF ABRASION 

(116X30CM) ON LEFT DORSAL AND ACROSS BACK, JUST 

ANTERIOR TO HUMP, WITH MISSING SKIN AND NECROSIS 

AT MARGINS, VISIBLE BRUISING UNDER WIDEST POINT 

OF MISSING SKIN. ABRAIDED SKIN ON UPPER RIGHT 

SIDE AT SAME LEVEL AS LARGER ABRASION. WHALE 

LICE ALL OVER BODY, INCLUDING DORSAL SURFACE OF 

FLUKE (UNUSUAL, SUSPECT UNABLE TO LIFT FLUKES 

PROPERLY). AT LEAST 4 SHATTERED VERTEBRAE AT 

SITE, APPROXIMATELY 1 MONTH'S WORTH OF HEALING 

IN TISSUES. AREAS OF INTERNAL INFECTION AT TRAUMA 

SITE. SUSPECT ANIMAL HIT BY SHIP, WITH SUBSEQUENT 

INFECTION, EMACIATION AND LIVE STRANDING. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2018 7 9 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

CURRY OR SI (PRORATE) VIDEO OF A GRAY WHALE TRAILING A SINGLE BUOY, WHICH ONLY APPEARS AS WHALE IS DIVING. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2018 8 26 VESSEL STRIKE SITKA AK NSI 

A GRAY WHALE WAS STRUCK BY A 24 FT PRIVATE 

RECREATIONAL CABIN CRUISER AT 2.4 KNOTS. THE 

BOAT WAS JOLTED BY THE IMPACT, AFTER WHICH THE 

WHALE SUBMERGED IMMEDIATELY. THE WHALE WAS 

SEEN RESURFACING WITHIN A MINUTE OF THE STRIKE, 

BUT THERE WAS NO INDICATION OF INJURY TO THE 

ANIMAL. THE VESSEL DID NOT INCUR ANY DAMAGE. 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2019 3 19 VESSEL STRIKE LOS ANGELES CA DEAD 

SELF REPORTED VESSEL COLLISION WITH JET CATALINA 

EXPRESS WHICH HAS A 35 KTS CRUISE SPEED AND 

LENGTH OF 144 FEET. WHALE MOVING SOUTH TO 

NORTH AND WAS SEEN JUST AHEAD OF THE PORT BOW 

AS VESSEL TRAVELED WEST. WHALE HIT ON RIGHT SIDE 

BASED ON VESSEL DIRECTION AND NARRATIVE. VESSEL 

IMMEDIATELY SLOWED AND CAPT. FELT A BUMP 

TOWARDS THE BACK OF THE VESSEL. CAPT. DID SEE 

WHALE DIVING AND TURNING DOWN JUST BEFORE 

COLLISION. COLLISION OCCURRED AT 33.687 AND -

118.18. FRESH DEAD CARCASS FOUND ON 3/21/2019 

(WCRLB-20190321ER) AT 33.73 AND -118.20 (3 MILES 

FROM REPORTED VESSEL STRIKE) DETERMINED TO BE 

SAME WHALE AS IT HAS EVIDENCE OF BEING HIT ON THE 

RIGHT DORSAL SURFACE, WITH THE FORCE CAUSING 

SIGNIFICANT HEMORRHAGING AROUND PECTORAL 

FLIPPERS. LARGE WOUND ACROSS THE ANIMALS BACK 

CONSISTENT WITH VESSEL COLLISION. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 3 24 UNIDENTIFIED FISHERY INTERACTION LINCOLN OR SI (PRORATE) ENTANGLED WHALE SEEN WITH GREEN LINE THROUGH MOUTH. GEAR AMOUNT AND CONFIGURATION UNKNOWN. SI (PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2019 3 24 VESSEL STRIKE VENTURA CA DEAD 

WHALE HAD A SERIES OF DEEP LACERATIONS FROM A 

PROPELLER DOWN ENTIRE LENGTH OF PEDUNCLE. 

DEEP INTRAMUSCULAR ABCESS AT BASE OF PEDUNCLE 

WITH NECROTIC TISSUE AND NOTED POTENTIAL FOR 

SPINAL INVOLVEMENT IN INJURY. . 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 4 3 UNIDENTIFIED FISHERY INTERACTION LOS ANGELES CA DEAD 

LARGE SOFTBALL SIZED ABSCESS ON VENTRAL SIDE OF 

RIGHT FLUKE BLADE POSTERIOR TO PEDUNCLE ON 

MODERATELY DECOMPOSED WHALE. ABSCESS WAS 

VERY HARD AND DIFFICULT TO CUT THROUGH. 

ABSCESS WAS COVERED IN WHALE LICE, STARTED TO 

BLEED WHEN CUT. UPON REVIEW OF UNDERWATER 

VIDEO, TWISTED ROPE IS SEEN EMBEDDED IN FLUKES 

RIGHT NEXT TO ABSCESS. SKIN AND BLUBBER 

COLLECTED. ENTIRE ABSCESS COLLECTED AND SUB 

SAMPLED FOR HISTOLOGY. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 4 10 VESSEL STRIKE SAN MATEO CA DEAD 

9.6 METER FEMALE WITH GOOD BODY CONDITION. 

LARGE AREA OF HEMORRHAGE ON THE RIGHT LATERAL 

NECK AND MUSCLES ABOVE AND BELOW THE SCAPULA. 

THE MUSCLE IN THIS AREA APPEARED DEEP RED AND 

WAS MORE DECOMPOSED THAN THE REST OF THE 

MUSCLE ON THE BODY. THE MUSCLE FROM THE MID 

THORAX DOWN WAS LIGHT REDDISH PINK AND HAD 

NORMAL TONE WITH LITTLE TO NO DECOMPOSITION. 

FINDINGS CONSISTENT WITH VESSEL STRIKE INJURY. . 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2019 4 13 VESSEL STRIKE CONTRA COSTA CA DEAD 

FRESH DEAD CARCASS WAS AMPUTATED POSTERIOR 

TO THE GENITAL SLIT AND WAS MISSING ENTIRE 

PEDUNCLE AND FLUKES. BASED ON MEASUREMENT OF 

THE REMAINING CARCASS (910 CM.) AND SIMILAR SIZE 

FEMALE GRAY WHALES, WE ESTIMATED THAT THE 

INTACT CARCASS WOULD HAVE BEEN APPROXIMATELY 

12 M. IN LENGTH. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 4 14 GILLNET FISHERY ORANGE CA SI 

WHALE ENTANGLED IN PINK GILLNET WITH GREEN LINES 

AROUND FLUKES, TRAILING 20 FEET BEHIND WHALE. MASS OF NETTING IS TIGHT AROUND FLUKES AND IS 

CONSTRICTING AND CUTTING INTO TRAILING EDGE OF 

FLUKES. 

SI 

GRAY WHALE EASTERN N PACIFIC 2019 4 16 VESSEL STRIKE SAN MATEO CA DEAD 

10.9 METER FEMALE, SLIGHTLY UNDERWEIGHT. THE 

EPAXIAL MUSCLE ALONG THE POSTERIOR THORACIC 

VERTEBRAE (M. LONGISSIMUS DORSII) WAS FRIABLE 

AND MACERATED RELATIVE TO THE SAME MUSCLE 

LOCATED MORE CRANIAL ON THE THORACIC SPINE. 

CHANGE IS CONSISTENT WITH BLUNT FORCE TRAUMA 

AND HEMORRHAGE. AT LEAST EIGHT VERTEBRAE HAD 

FRACTURED DORSAL PROCESSES. ALL RIBS WERE 

INTACT. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 4 20 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

ORANGE CA SI 

PINK MONOFILAMENT GILLNET 8 INCH MESH SIZE 

CONSISTENT WITH LOCAL SET GILLNET FISHERY. 

BLACK FLOAT LINE (BLACK FLOATS), AND BLACK LEAD 

LINE WRAPPED AROUND FLUKE AND PEDUNCLE. 

MULTIPLE WRAPS, FOUR TO FIVE. ENTANGLEMENT 

DESCRIBED AS DIGGING INTO TAIL, SO A CONSTRICTING 

ENTANGLEMENT. LINE TRAILED DEEP. ARTICLE STATES 

THAT END OF TRAILING GEAR WAS 40 FT BEHIND 

WHALE. WHALE PARTIALLY DISENTANGLED AND FOUND 

DEAD ON 5/3/2020. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

EASTERN N GRAY WHALE 2019 4 28 VESSEL STRIKE MARIN CA DEAD PACIFIC 

PRELIMINARY CAUSE OF DEATH: SHIPSTRIKEPROPELLER WOUND TO PEDUNCLE. THERE WAS ONE 

PARTIAL AND ONE FULL-THICKNESS LACERATION 

ALONG THE CAUDAL PEDUNCLE AND A PARTIAL 

THICKNESS LACERATION ALONG THE DORSAL ASPECT 

OF THE FLUKE. APPROXIMATELY 128 CM CRANIAL TO 

THE FLUKE ALONG THE RIGHT CAUDAL PEDUNCLE 

EXTENDING FROM THE DORSAL MIDLINE TO THE MIDLATERAL ASPECT IS A 45.3 CM LENGTH AND 5-14 CM 

WIDTH, V-SHAPED PARTIAL THICKNESS LACERATION 

WITH RAGGED, IRREGULAR MARGINS AND EXPOSURE 

OF THE UNDERLYING BRIGHT RED DERMIS. ON CUT 

SURFACE, THE SUPERFICIAL BLUBBER UNDERLYING 

THE EXPOSED DERMIS HAS A WELL DEMARCATED, THIN, 

BRIGHT RED BAND (HEMORRHAGE). THE CAUDAL 

PEDUNCLE APPROXIMATELY 15 CM CRANIAL TO THE 

FLUKE IS ALMOST COMPLETELY TRANSECTED 

THROUGH THE SKIN, BLUBBER, VASCULATURE, 

TENDONS, AND THE CAUDAL VERTEBRAL BODY AND 

CONNECTED TO THE BODY BY A THICK BAND OF SKIN, 

BLUBBER, AND TENDONS ALONG THE RIGHT DORSAL DEAD 

AND LATERAL ASPECT. WOUND MARGINS ARE SHARP 

AND WELL-DEMARCATED. THE VERTEBRAL BONE ALONG 

THE CRANIAL ASPECT OF THE WOUND IS FRACTURED 

INTO NUMEROUS SMALL FRAGMENTS AND BONE ALONG 

THE CAUDAL ASPECT IS LARGELY INTACT WITH 

SEVERAL SMALL FRAGMENTS ALONG THE DORSAL AND 

LATERAL MARGINS OF THE BONE. THE CENTER OF THE 

VERTEBRAL BODY IS MOTTLED DARK RED TO PURPLE. 

ALONG THE DORSAL ASPECT OF THE FLUKE EXTENDING 

FROM THE LEFT LATERAL CRANIAL MARGIN 

DIAGONALLY TOWARDS THE RIGHT LATERAL CAUDAL 

MARGIN IS A 1.35 M, PARTIAL THICKNESS UP TO 3 CM 

DEEP LACERATION WITH EXPOSURE OF THE 

UNDERLYING BLUBBER AND CONNECTIVE TISSUE. THE 

RIGHT-SIDED, POST OCCIPITAL SUBCUTIS IS MARKEDLY 

EXPANDED WITH DARK RED, GELATINOUS MATERIAL 

(HEMORRHAGE). SKELETAL MUSCLE IS SIMILARLY 

HEMORRHAGIC. THE SUPERFICIAL BLUBBER 

IMMEDIATELY CAUDAL TO THIS IS BRIGHT RED 

(HEMORRHAGE). 

WHALE DRAGGING A 2 FT X 2 FT STYROFOAM CUBE OR EASTERN N SAN LUIS SI SI GRAY WHALE 2019 5 4 MARINE DEBRIS CA BUOY BEHIND BLOWHOLE. UNKNOWN AMOUNT OF LINE 

PACIFIC OBISPO (PRORATE) (PRORATE) AND GEAR CONFIGURATION. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2019 5 6 VESSEL STRIKE SAN FRANCISCO CA DEAD 

THE PRELIMINARY CAUSE OF DEATH IS SEVERE ACUTE 

BLUNT TRAUMA AFFECTING THE HEAD AND NECK. POSTOCCIPITAL AND THORACIC EPAXIAL AND HYPAXIAL 

SKELETAL MUSCLES, PREDOMINANTLY ALONG THE 

RIGHT SIDE AND TO A LESSER DEGREE ON THE LEFT, 

ARE MARKEDLY EXPANDED WITH DARK RED 

GELATINOUS MATERIAL (HEMORRHAGE). THE 

OVERLYING DEEP BLUBBER AND SUBCUTIS ARE 

SIMILARLY HEMORRHAGIC AND THE SUPERFICIAL 

BLUBBER HAS A THICK LINEAR BAND OF HEMORRHAGE. 

ON CUT SURFACE, SKELETAL MUSCLE AND SUBCUTIS 

OOZES A MODERATE VOLUME OF RED-TINGED OPAQUE 

FLUID. THE TIPS OF THE DORSAL SPINOUS PROCESSES 

ON THE ATLAS (C2) ARE ABSENT AND THE EXPOSED 

ENDOSTEUM IS ROUGHENED AND IRREGULAR 

(AVULSION FRACTURE, PRESUMPTIVE). A LARGE 

RECTANGULAR PORTION OF THE PERIOSTEUM ALONG 

THE RIGHT NUCHAL CREST IS ELEVATED FROM THE 

UNDERLYING BONE AND THE EXPOSED SURFACE IS 

SIMILARLY ROUGH AND IRREGULAR (AVULSION 

FRACTURE, PRESUMPTIVE). A SMALL PORTION OF THE 

PERIOSTEUM ALONG THE DORSAL AND LATERAL 

ASPECTS OF THE RIGHT OCCIPITAL CONDYLE ARE 

SIMILARLY AVULSED. THE RIGHT SCAPULA HUMERAL 

AND RIGHT SQUAMOMANDIBULAR JOINTS WERE 

UNREMARKABLE. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2019 6 3 MARINE DEBRIS SNOHOMISH WA NSI GRAY WHALE BRIEFLY ENTANGLED IN MOORING BUOY BEFORE SELF-RELEASING. WHALE SEEN GEAR-FREE AFTER EVENT. NSI 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2019 6 12 

DUNGENESS CRAB 

POT FISHERY 

(COMMERCIAL) 

CURRY OR DEAD 

DURING A SEABIRD SURVEY, HELICOPTER TEAM 

DETECTED DEAD ENTANGLED WHALE WITH MULTIPLE 

SETS OF DUNGENESS GEAR. STATE FISHERY NOT 

CONFIRMED. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2019 9 6 VESSEL STRIKE LINCOLN OR SI 

WHALE TOWING LINE FROM DAMAGED LEFT FLUKE 

BLADE THAT HAD DEEP PROPELLER INJURY, AS 

EVIDENCED BY REGULAR SPACING AND CHARACTER OF 

WOUNDS. LINE WAS CAUGHT IN THE SCAR OF THE 

PROPELLER WOUND. CYAMIDS NOTED IN WOUND. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

OBSERVER WAS AN OSU WHALE RESEARCHER. 

SI 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2019 9 13 

UNIDENTIFIED 

FISHERY 

INTERACTION 

LINCOLN OR SI (PRORATE) MULTIPLE WRAPS ON FLUKES, TRAILING LINE 40 FEET BEHIND ANIMAL, WHERE IT SANK BELOW SURFACE. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2020 1 12 UNIDENTIFIED FISHERY INTERACTION VENTURA CA SI (PRORATE) APPROXIMATELY 75 FEET OF LINE TRAILING FROM TAIL AREA ON WHALE. AT THE END OF THE LINE IS A SINGLE LIGHT GREEN OR YELLOWISH GREEN BUOY. FULL GEAR CONFIGURATION AND AMOUNT UNKNOWN. SI (PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2020 1 20 GILLNET FISHERY SAN DIEGO CA SI (PRORATE) 

ROPE IN FRONT OF BLOWHOLE AND WRAPPED AROUND 

THE ROSTRUM AND TRAILING DOWNWARD; 

BLUEISH/PURPLE MONOFILAMENT NETTING DRAPPED 

OVER THE BLOWHOLE, WRAPPED ON ITSELF INTO A 

"CORD" TRAILING OVER BACK. GEAR CONFIGURATION 

AND AMOUNT UNKNOWN. 

SI

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2020 4 24 DUNGENESS CRAB POT FISHERY (WASHINGTON) CLALLAM WA SI (PRORATE)

FREE-SWIMMING GRAY WHALE WITH CLOSED BRIDLE 

THROUGH MOUTH. OTHER END OF GEAR TRAILING WITH 

BUOYS AND DESCENDING TO DEPTH. LINE RUNS 

THROUGH MOUTH; OUT OF LEFT MOUTH ACROSS THE 

HEAD TO MEET UP WITH THE LINE COMING FROM THE 

RIGHT MOUTH IN A MULTIPLE TWISTS. THE LINE FROM 

THE LEFT MOUTH CONTINUES AFTER THE TWISTS 

TOWARDS THE SEAFLOOR / TRAP. THE LINE FROM THE 

RIGHT MOUTH CONTINUES PAST THE TWISTS TO THE 

BUOYS NEAR THE PEDUNCLE. POT LINE - 10 FATHOMS 

OF 3/8THS SINKING LINE FROM BUOY, RUNNING TO 2 

FMS OF 7/16TH FLOATING LINE TO POT HAD BLUE 

SQUARE WDFW TAG FROM 2019-20 SEASON (300 POT 

LIMIT FROM COASTAL WA); 10 FATHOMS OF 3/8THS 

SINKING LINE FROM BUOY. RESCUE TEAM WAS ABLE TO 

CUT GEAR FREE / FULL RELEASE. 

NSI 

GRAY WHALE EASTERN N PACIFIC 2020 5 10 UNIDENTIFIED FISHERY INTERACTION PACIFIC WA DEAD 

MODERATELY DECOMPOSED AND IN POOR 

NUTRITIONAL CONDITION WITH HEALING 

ENTANGLEMENT INJURY AT TIP OF LOWER JAW. ONE

SET OF PHOTOS POSTED ON FACEBOOK ON MAY 10 

SHOWED A LOOSE ENTANGLEMENT ON LEFT PECTORAL 

FLIPPER, BUT THE GEAR WAS GONE BY MORNING OF 

MAY 11. WHALE ALSO SHOWED EVIDENCE OF PRIOR 

ENTANGLEMENT. 

DEAD 

GRAY WHALE EASTERN N PACIFIC 2020 5 31 VESSEL STRIKE PACIFIC WA DEAD 

BLUNT FORCE TRAUMA TO LEFT SIDE ROSTRUM. 

HEMORRHAGE, EDEMA, HEMATOMA, FORCE STRONG 

ENOUGH TO CAUSE LATITUDINAL CRACKS IN BALEEN 

AND BEND THE FRINGE OUTWARD OVER THE LOWER 

LIP. NO BROKEN BONES SEEN. AT LEAST CONTRIBUTED 

TO THE MORTALITY. HEALED ENTANGLEMENT WOUNDS 

ON LEADING EDGE OF FLUKES AND ON TAILSTOCK--NOT 

RELATED TO MORTALITY. INDENT ACROSS TONGUE 

(HEALED), APPROX 1/3 POSTERIOR TO THE TIP, 

APPEARS TO HAVE BEEN WRAPPED/CONSTRICTED AT 

SOME POINT--NOT RELATED TO MORTALITY. VESSEL 

SIZE AND SPEED UNKNOWN. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2020 7 5 VESSEL STRIKE GRAYS HARBOR WA DEAD 

BLUNT FORCE TRAUMA TO TOP OF HEAD, PREMORTEM. 

HEMORRHAGE AND EDEMA AT TOP OF HEAD. BONE 

NEAR EAR CANAL CHIPPED, EVIDENCE OF DRAINING 

HEMORRHAGE IN AREA. TINY BONE FRAGMENTS COULD 

BE FELT IN EDEMATOUS BONE TISSUE. VESSEL SIZE 

AND SPEED UNKNOWN. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2020 8 6 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

TRIBAL SALMON GILLNET; NET AND ROPE THIS WHALE 

WAS REPORTED BY FISHERMAN (TRIBAL SALMON 

GILLNET FISHERY) THAT HAD CAUGHT THE WHALE IN 

HIS NET. IT WAS DEAD ON ARRIVAL AT 9:40 AM AFTER 

HAVING DROWNED IN THE NET. IT IS NOT KNOWN WHEN 

THE WHALE WAS ENTANGLED, OR WHEN IT DIED, BUT IT 

WAS CLEAR THAT THE WHALE HAD VERY LITTLE 

DECOMPOSITION SUGGESTING THAT IT HAD NOT BEEN 

DEAD IN THE NET FOR TOO LONG. CARCASS WAS 

BROUGHT ASHORE FOR A FULL EXAMINATION DUE TO 

THE ONGOING GRAY WHALE UME INVESTIGATION AND 

THE FRESH CONDITION OF THE ANIMAL. PRETTY CLEAR 

WHERE THE LARGE ROPES OF NET HAD INTERACTED 

WITH THE WHALE - BUT IF ROPE HAD NOT BEEN SEEN AT 

THAT LOCATION IT WOULD HAVE BEEN HARD TO PICK 

OUT AS COMPARED TO NORMAL SUITE OF SCARS AND 

SCRATCHES ON A GRAY WHALES. WE DID NOT SEE ANY 

OF THE CHARACTERISTIC HASH MARKING CAUSED BY A 

NET. ALSO INCLUDED IN NORTHWEST INDIAN FISHERIES 

COMMISSION ANNUAL REPORT. 

DEAD 

GRAY WHALE 

EASTERN N 

PACIFIC -

PCFG 

2020 8 7 GILLNET FISHERY MENDOCINO CA SI (PRORATE) 

BLUE STEEL LINE WITH 2 BUOYS (1/2 WHITE/ 1/2 

ORANGE) WRAPPED AROUND HEAD AND FLIPPER. WE 

BELIEVE IT COULD BE WRAPPED AROUND THE LEFT 

PECTORAL AND THERE IS SOME SMALL REMNANTS OF 

GILLNET. UNAUTHORIZED RP SAID THEY GRABBED THE 

LINE VERY CLOSE TO THE WHALE AND WHEN THE 

WHALE FELT THEM ON THE LINE IT SPOOKED AND DOVE 

AND THEY DIDN'T SEE IT AGAIN. FINAL OUTCOME AND 

GEAR CONFIGURATION AND AMOUNT UNKNOWN. 

SI

(PRORATE) 

GRAY WHALE EASTERN N PACIFIC 2020 8 19 UNIDENTIFIED FISHERY INTERACTION MONTEREY CA SI (PRORATE)

ORANGE BUOY WITH MARINE GROWTH ATTACHED TO 

LEFT SIDE OF WHALE, ATTACHMENT POINT ASSUMED TO 

BE PECTORAL FLIPPER BASED ON PHOTO. REPORTING 

PARTY STATES THERE WAS A SMALL AMOUNT OF BLUE 

GILLNET ATTACHED TO THE BUOY, BUT IT IS NOT 

VISIBLE IN PHOTOS. GEAR AMOUNT AND 

CONFIGURATION UNKNOWN. WHALE APPEARS HEALTHY 

AND IS FREE-SWIMMING. ASSUMED TO BE SAME 

UNIDENTIFIED WHALE INITIALLY SEEN OFF GUALALA IN 

MENDOCINO ON 8/7 AND IDENTIFIED AS A GRAY WHALE 

IN SAME AREA ON 8/13 WITH SIMILAR GEAR AND 

PLACEMENT. 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GRAY WHALE EASTERN N PACIFIC 2020 11 18 UNIDENTIFIED FISHERY INTERACTION ORANGE CA SI (PRORATE) 

CONFIRMED ENTANGLED FROM UNMANNED AERIAL 

VEHICLE PHOTOS: BUNDLE OF LINE AT BASE OF 

PEDUNCLE AND MID FLUKE. CONSTRICTING LINE AT 

FLUKE INSERTION. LONG SINGLE LINE TRAILING THE 

WHALE THAT MAY EXCEED LENGTH OF WHALE. FULL 

GEAR CONFIGURATION AND AMOUNT UNKNOWN. 

SI 

(PRORATE) 

GUADALUPE 

FUR SEAL MEXICO 2016 4 22 MARINE DEBRIS MONTEREY CA SI 

EMACIATED, LETHARGIC, THICK SINGLE BRAIDED 

PLASTIC LINE/NETTING AROUND NECK. DIED IN REHAB 

FACILITY. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2016 4 25 MARINE DEBRIS MONTEREY CA SI EMACIATED, ORANGE NYLON NETTING CUTTING INTO NECK AND WRAPPED LOOSELY AROUND UPPER BODY. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2016 4 27 MARINE DEBRIS MARIN CA SI 

EMACIATED, THICK BLACK ROPE WAS AROUND NECK 

BUT REMOVED BY MEMBER OF PUBLIC (FIRE 

DEPARTMENT?) PRIOR TO RESCUE TEAM ARRIVING. 

PUBLIC NETTED OUT OF THE WATER. TREATED AND 

RELEASED FROM REHAB FACILITY. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2016 5 22 MARINE DEBRIS SAN LUIS OBISPO CA DEAD EMACIATED, DECOMPOSING CARCASS WITH ENTANGLEMENT. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2016 5 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

WA DEAD 

REPORTED FRESH DEAD FROM 'SHILOH BEACH'. EXAM 

BOTH INTERNAL AND EXTERNAL. SUSPECTED 

ENTANGLEMENT OR ENTRAPMENT. BASED ON 

CIRCULAR LINEAR HEMORRHAGE AT HIND FLIPPER/ 

LOWER PELVIS AREA AS WELL AS BOTH FRONT 

FLIPPERS. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2016 5 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA DEAD 

TWO LOOPS OF ROPE NET FOUND AROUND THE NECK 

JUST ABOVE THE SHOULDERS. INTRUSION INTO MUSCLE 

ALMOST COMPLETE CIRCUMFERENTIALLY, EXCEPT FOR 

A 1 INCH SECTION MIDLINE VENTRALLY 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2016 5 29 MARINE DEBRIS SONOMA CA SI 

PUBLIC REPORTEDLY REMOVED AN ENTANGLEMENT 

FROM AN EMACIATED ANIMAL. TREATED AT REHAB 

FACILITY AND RELEASED. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2016 5 29 MARINE DEBRIS MONTEREY CA SI MEMBER OF PUBLIC DISENTANGLED EMACIATED ANIMAL. TREATED AT REHAB FACILITY AND RELEASED. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2016 6 8 MARINE DEBRIS SAN LUIS OBISPO CA SI 

EMACIATED, LARGE YELLOW ENTANGLEMENT AROUND 

LOWER NECK, SHOULDERS AND FLIPPERS. ANIMAL 

STRANDED WITH BLUE FLIPPER TAGS. UNCLEAR IF BLUE 

FLIPPER TAGS WERE FROM RESEARCH-RELATED 

ACTIVITY OR REPRESENT A PREVIOUSLY-STRANDED 

HUMAN-RELATED CASE. TREATED AT REHAB FACILITY 

AND RELEASED WITH NEW ORANGE FLIPPER TAGS. 

TREATED AS SERIOUS INJURY BECAUSE PROBABLE RESTRAND. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2016 6 15 MARINE DEBRIS MENDOCINO CA DEAD 

CARCASS COLLECTED, WITH ENTANGLEMENT, BUT 

ONLY SKULL AND BACULUM RETAINED. NO DETAILS ON 

TYPE OF ENTANGLEMENT. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 6 9 MARINE DEBRIS CLATSOP OR DEAD HARD PLASTIC RING AROUND NECK. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 6 10 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA SI 

ANIMAL HAD ORANGE NETTING ENTANGLED AROUND 

MOST OF BODY, BUT NOT CUTTING INTO TISSUE. 

TREATED AND RELEASED FROM REHAB FACILITY. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2017 6 10 MARINE DEBRIS SONOMA CA DEAD ENTANGLED ANIMAL FOUND, DETAILS ON NATURE OF ENTANGLEMENT LACKING. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 6 12 MARINE DEBRIS SAN MATEO CA DEAD ANIMAL ENTANGLED IN BALLOON RIBBON MATERIAL. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 6 19 MARINE DEBRIS MONTEREY CA SI EMACIATED ANIMAL FOUND WITH ENTANGLEMENT SCAR, DIED AT REHAB FACILITY. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 6 28 MARINE DEBRIS SAN LUIS OBISPO CA DEAD CARCASS FOUND WITH THICK DARK GREEN NETTING ENTANGLED AROUND HEAD, CAUSING TWO DEEP LACERATIONS. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2017 11 1 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA SI 

ANIMAL HOOKED IN HEAD AND ACTIVELY STRUGGLING. 

CREW PULLED ANIMAL TO WITHIN 10 FEET OF VESSEL, 

WHERE THE LINE WAS CUT. THE HOOK AND AT LEAST 5-

10 FEET OF LEADER LEFT ON THE ANIMAL. OBSERVER 

PROGRAM. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2017 11 17 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

ANIMAL HOOKED IN MOUTH. GEAR PULLED FREE OF 

ANIMAL AS IT WAS BEING PULLED TOWARD THE VESSEL. 

NO TISSUE LOCATED ON RETRIEVED HOOK. OBSERVER 

PROGRAM. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2017 12 3 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA SI 

ANIMAL HOOKED IN RIGHT FRONT FLIPPER. STRUGGLED 

AS IT WAS BEING PULLED TOWARDS VESSEL. LINE WAS 

CUT, HOOK AND 20 FEET OF MONOFILAMENT REMAINED 

ON ANIMAL. OBSERVER PROGRAM. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2018 5 23 HOOK AND LINE FISHERY ORANGE CA SI 

UNDERWEIGHT ANIMAL ENTANGLED IN FISHING LINE. 

ANIMAL WAS RESCUED BY PMMC ON 5/23/18 IN 

NEWPORT BEACH AND TRANSFERRED TO SEA WORLD 

ON THE SAME DAY. REHABILITATED IN COORDINATION WITH NOAA FISHERIES. ANIMAL RELEASED WITH SPOT 

6311A SATELLITE TRANSMITTER. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2018 6 15 GILLNET FISHERY MARIN CA SI 

LARGE GREEN NET ENTANGLEMENT AROUND HEAD AND 

NECK RESULTING IN LACERATION BY EARS. ANIMAL WAS 

EMACIATED. NO DETAILS GIVEN ON RESCUE / REHAB 

EFFORTS. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2018 6 16 GILLNET FISHERY SAN MATEO CA SI 

EMACIATED ANIMAL FOUND WITH LARGE AMOUNT OF 

GREEN NYLON NETTING AROUND NECK. NO DETAILS 

GIVEN ON RESCUE / REHAB EFFORTS. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2018 7 23 GILLNET FISHERY MENDOCINO CA SI 

GILLNET FISHERY DISENTANGLEMENT BY THE PUBLIC. 

THIS ANIMAL WAS DISENTANGLED BY THE PUBLIC AND 

IT FLED THE BEACH SHORTLY AFTER. THE INCIDENT 

WAS FILMED AND UPLOADED TO THE FB PAGE OF THE 

WESTPORT CAMPGOUND AND RV. VIDEO LINK NOT 

AVAILABLE AT TIME OF SERIOUS INJURY ASSESSMENT. 

NO DETAILS ON SEVERITY OF ENTANGLEMENT, 

CONDITION OF ANIMAL, OR IF GEAR REMAINED ON 

ANIMAL. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2018 8 31 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA DEAD LINE ENTANGLEMENT AROUND NECK. CARCASS TRANSFERRED TO CALIFORNIA ACADEMY OF SCIENCES. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 1 7 TRAWL FISHERY UNIDENTIFIED GRAYS HARBOR WA SI 

SEAL LIVE ON BEACH AND ENTANGLED IN GREEN 

POLYFILAMENT TRAWL NET. 3 FEET HEAVILY WRAPPED 

AROUND WHOLE BODY. HEALTHY ANIMAL DESCRIBED 

AS HAVING 'AN ATTITUDE AND BIG TEETH' WAS 

DISENTANGLED AND RELEASED ON BEACH. ANIMAL 

RESTRANDED ON JAN. 19 AND HAD LACERATIONS DOWN 

TO MUSCLE LAYER RESULTING FROM NEW NET 

ENTANGLEMENT AND NET MARKS ON FUR. TAKEN TO 

REHAB FACILITY. OUTCOME UNKNOWN. CATEGORIZED 

AS SERIOUS INJURY DUE TO DEEP LACERATIONS AND 

MULTIPLE STRANDINGS. 

SI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

MALNOURISHED ANIMAL WITH GREEN ROPE TYPE GUADALUPE TRAWL FISHERY MEXICO 2019 1 26 SANTA CRUZ CA SI NETTING ENCIRCLING THE HEAD CAUSING WOUNDS ON SI 

FUR SEAL UNIDENTIFIED TOP OF HEAD. 

EMACIATED, PLASTIC RING AROUND LOWER GUADALUPE SAN LUIS MEXICO 2019 5 8 MARINE DEBRIS CA SI NECK/SHOULDERS REGION - SEE HUMAN INTERACTION SI 

FUR SEAL OBISPO FORM FOR DETAILS. 

UNIDENTIFIED ENTIRE SKELETON ARCHIVED LATE NOTE** 11/19/2019 GUADALUPE MEXICO 2019 5 18 HUMAN SAN MATEO CA DEAD SKULL, LEFT MANDIBLE AND CANINE FRACTURES WITH DEAD 

FUR SEAL INTERACTION PROJECTILE FOUND IN MESH BAG WITH SKULL. 

LIVE FUR SEAL YEARLING ENTANGLED, FISHING NET 

UNIDENTIFIED AROUND NECK. NORTH OF TENMILE CREEK. OBSERVER GUADALUPE MEXICO 2019 5 22 FISHERY DOUGLAS OR SI (A SNOWY PLOVER MONITOR) CAME BACK TO SITE THE SI 

FUR SEAL INTERACTION FOLLOWING MORNING AND DID NOT OBSERVE THE 

ANIMAL AGAIN. 

UNIDENTIFIED MALNOURISHED ANIMAL WITH CIRCUMFERENTIAL GUADALUPE MEXICO 2019 6 1 HUMAN SANTA CRUZ CA SI LACERATION AROUND NECK ~1CM IN WIDTH CLEAN SI 

FUR SEAL INTERACTION MARGINS. NO FISHING LINE/ENTANGLEMENT FOUND. 

GUADALUPE UNIDENTIFIED NET EMACIATED ANIMAL WITH RED NETTING AROUND NECK MEXICO 2019 6 4 MONTEREY CA SI SI 

FUR SEAL FISHERY CUTTING INTO ANIMAL. 

FOUND DURING BEACH SURVEY DEAD ON BEACH. 

BASED ON THE FINDING ON GROSS NECROPSY - UNIDENTIFIED GUADALUPE GRAYS HEMORRHAGE AROUND BOTH ANKLES OF HIND MEXICO 2019 6 7 FISHERY WA DEAD DEAD 

FUR SEAL HARBOR FLIPPERS AND ALSO DORSAL ASPECT OF RADIUS AND INTERACTION ULNA AND ACUTE RHABDOMYOLYSIS SUSPECT FISHERY 

ENTANGLEMENT. 

UNIDENTIFIED GUADALUPE GRAYS MEXICO 2019 6 7 FISHERY WA DEAD FUR SEAL HARBOR INTERACTION 

FOUND DEAD BY WDFW VOLUNTEER; PARTIAL 

SCAVENGED MISSING FLIPPER. LINEAR IMPRESSION ON 

EYE; FORE FLIPPER MISSING. ALTHOUGH THE ANIMAL 

WAS PARTIALLY SCAVENGED THE OBSERVATION OF 

THE LINEAR IMPRESSION ON THE EYE NOTED 

HEMORRHAGE AT NECK ON GROSS AND ACUTE DEAD 

RHABDOMYOLYSIS ON HISTO SEEM TO SUPPORT A 

ACUTE EVENT PRIOR TO DEATH AND PROBABLY 

ENTANGLEMENT. MISSING FLIPPER COULD POSSIBLY 

DUE TO SCAVENGING OR PRIOR DIFFICULT TO 

DETERMINE. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2019 6 8 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SONOMA CA SI 

ANIMAL WAS ON AN OFFSHORE ROCK, WITH AN 

ENTANGLEMENT AROUND THE NECK THAT WAS 

SNAGGED ON THE ROCK. AN ATTEMPT TO RESCUE WAS 

MADE BY TMMC, BUT THE CONDITIONS WERE NOT 

FAVORABLE OR SAFE. ANIMAL WAS NOT FOUND THE 

NEXT DAY AND DID NOT STRAND IN THE WEEKS 

FOLLOWING THIS OBSERVATION. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2019 6 9 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

CARCASS WITH GOOSENECK BARNACLES ON BOTH 

HIND FLIPPERS AND ON BASE OF TAIL ON LEFT SIDE. 

HEAD IS SMASHED; MULTIPLE BREAKS ON SKULL AND 

AROUND ROSTRUM. LOWER JAW FRACTURED IN 

MIDDLE. LEFT FORE FLIPPER FINGER DIGITS 

DISLOCATED; POSSIBLE BREAK ON RIGHT DIGITS. 

EVIDENCE OF THE MULTIPLE FRACTURES OF THE SKULL 

NOSE AND JAW NOTED ON GROSS EXAM AND THE 

FINDING OF ACUTE HEMORRHAGE, SKELETAL MUSCLE 

AND WELL AS ACUTE EDEMA, LUNG ARE CONSISTENT 

WITH ACUTE TRAUMA ANTEMORTEM. SUGGESTIVE OF 

FOCAL BLUNT FORCE TRAUMA AND DROWNING. 

POSSIBLY DUE TO CLUBBING OR ENTANGLEMENT. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 6 12 GILLNET FISHERY SANTA BARBARA CA DEAD ENTIRE BODY ENTANGLED IN "GILL FISHING LINE." DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 6 13 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

BASED ON THE GROSS FINDINGS OF THE CIRCULINEAR 

HEMORRHAGE ON BOTH THE ANKLES AND RADIUS AND 

ULNAS AND EDEMA AND HEMORRHAGE ON THE CHEST 

THAT APPEAR TO SQUEEZED OBLONG WITH 

HEMORRHAGE AREA OF THE LUNGS AND TORN LIVER. 

THE HISTO CONFIRMS TRAUMA AND POSSIBLY 

DROWNING LEFT SIDE CHEST REDDENED EDEMA. THIS 

AREA CORRESPONDS WITH DARK RED AREA IN LUNG 

APPEARS TO BE POSSIBLY FROM BEING CONSTRICTED 

CIRCALUNAR REDDISH TISSUE ABOVE ANKLE JOINT. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 6 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MARIN CA SI 

EMACIATED ANIMAL ENTANGLED WITH SEVERE 

CHRONIC LACERATION. ENTANGLEMENT NETTING 

CAUGHT THROUGH MOUTH AND ACROSS MUZZLE, AS 

WELL AS NECK. BONE EXPOSURE, ULCERATION, AND 

INFECTION APPARENT. NOT CLEAR FROM NARRATIVE 

WHETHER MATERIAL WAS TRAWL OR GILLNET GEAR. 

SI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2019 6 16 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN 

FRANCISCO CA SI 

EMACIATED ANIMAL ENTANGLED WITH A NET AROUND 

ITS NECK. THE CALLER AND HER FRIENDS REMOVED 

THE NET WITH A KNIFE EXPOSING A DEEP WOUND ON 

THE ANIMAL'S NECK. THERE WERE A NUMBER OF 

PEOPLE AROUND THE ANIMAL IN CLOSE CONTACT AND 

PETTING ANIMAL. POSSIBLE TREMORS ON BEACH. 

LITTLE REACTION TO HUMAN ENCROACHMENT. 

UNRESPONSIVE BUT BREATHING DURING RESPONSE. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2019 6 18 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

BASED ON THE FINDING ON GROSS NECROPSY AND THE 

SUPPORTING DIAGNOSTIC ON HISTOPATH OF ACUTE 

TRAUMA AND STRUGGLE AND THE CIRCULINEAR 

HEMORRHAGE AROUND FORE FLIPPER AND ANKLES 

SUPPORTS SUSPECTED ENTANGLEMENT. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 6 22 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA SI 

EMACIATED ANIMAL WITH DEEP LACERATION WITH 

POCKETS OF PUS FROM A PREVIOUS ENTANGLEMENT 

AROUND NECK AND FACE. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2019 7 4 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

LINEAR ABRASION ON BOTH EYES; REDDENING EDEMA 

BEHIND BOTH EYES, SMALL FOCAL HEMORRHAGE LEFT 

FORE FLIPPER. TONGUE TIP AND BACK OF TONGUE 

REDDENED. REDDENING LIP AT BACK GAPE. FRONT 

UPPER LIPS "SWOLLEN/ EDEMATOUS. ONE INCISOR ON 

LOWER JAW NOT ALIGNED WITH OTHER. 

HISTOPATHOLOGY SUPPORTS DROWNING DUE TO 

ENTANGLEMENT ALTHOUGH BASED ON HISTO ANIMAL 

ALSO WAS SEPTIC AS WELL. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 7 7 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

PETECHIAE AROUND STERNUM, CIRCULINEAR 

HEMORRHAGE AROUND ANKLE, LINEAR AND 

CIRCULINEAR HEMORRHAGE AROUND FOREFLIPPERS, 

HEMORRHAGE AROUND RIGHT EYE THAT CONTINUES 

DOWN TO LOWER JAW. BRAIN-PALE, RIGHT FRONTAL 

LOBE LARGE ~4X4 CM HEMATOMA ASSOCIATED WITH 

HEMORRHAGE OUTSIDE BRAIN, LUNG- AERATED, 

MOTTLED LIGHT PINK/DARK, DARKENED PORTION 

DOESN'T FLOAT AS WELL IN FORMALIN. HISTOLOGIC 

FINDINGS CORROBORATE THE CLINICAL 

OBSERVATIONS. THE ACUTE HEMORRHAGE IN MULTIPLE 

TISSUES IS CONSISTENT WITH ACUTE ANTEMORTEM 

TRAUMA.PULMONARY LESIONS SUGGEST THE ANIMAL 

DROWNED AND PROBABLY ENTANGLEMENT 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2019 7 8 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS 

HARBOR WA DEAD 

NO LACERATIONS OR INJURIES, JUST LIGHT 

IMPRESSIONS AROUND NECK. RECOVERED DEAD ON 

BEACH WITH MULTIFILAMENT NET AROUND NECK. 

HISTOPATH CONFIRMED ACUTE TRAUMA AND THAT THE 

ANIMAL DROWNED. COMMENTS: NET APPEARED TO BE 

CUT AROUND NECK. 5 LOOPS AROUND NECK. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2019 7 8 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS

HARBOR WA DEAD 

EMACIATED ANIMAL FOUND DEAD. FAINT CIRCULINEAR 

HEMORRHAGE AROUND HINDFLIPPERS. FOREFLIPPERS 

HEAVILY SCAVENGED WITH SIGNS OF HEMORRHAGE. 

NASAL BONE APPEARS SOMEWHAT BROKEN. LARGE 

BLOOD CLOTS IN THE SKULL CAVITY (3 CC). 

PENETRATING HOLE IN ROOF OF MOUTH. HISTOLOGIC 

FINDINGS CORROBORATE THE CLINICAL 

OBSERVATIONS. THIS ANIMAL WAS EMACIATED AND EXPERIENCED AN EPISODE OF ACUTE TRAUMA AND 

PROBABLY DROWNING PROBABLE ENTANGLEMENT 

POSSIBLE GAFFED/ CLUBBED. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2020 1 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA SI CITIZENS REMOVED NET AND NECK BAND FROM AN ALERT ANIMAL THAT LEFT THE AREA. NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 4 18 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA DEAD CARCASS FOUND WITH NET AROUND BODY. SKELETON AT CAL ACADEMY OF SCIENCES. DEAD 

GUADALUPE 

FUR SEAL MEXICO 2020 6 1 MARINE DEBRIS HUMBOLDT CA SI 

TWINE ENTANGLEMENT AROUND NECK. CUT THROUGH 

SKIN FROM APPROX. 10 0'CLOCK AROUND TO 5 0'CLOCK 

BUT NOT INTO FLESH. SERIOUS INJURY DUE TO 

POTENTIAL OF MATERIAL TO BECOME CONSTRICTING 

OR CREATE DRAG. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2020 6 2 SHOOTING SAN FRANCISCO CA DEAD 

SKULL DAMAGED FROM BUCKSHOT. ONE PIECE OF 

BUCKSHOT RECOVERED AND ARCHIVED WITH THE 

SPECIMEN. UPDATE: TWO OTHER PIECES OF BUCKSHOT 

WERE RECOVERED DURING BRAIN REMOVAL WHILE 

PROCESSING. MODERATE DECOMPOSITION. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2020 6 6 SHOOTING SAN MATEO CA DEAD 

A MINIMUM OF THREE PIECES OF BUCKSHOT WERE 

RECOVERED FROM THE CARCASS DURING 

PREPARATION. ONE NEAR THE HEART, THE OTHER 

MIXED IN THE ORGANS AS THEY WERE BEING REMOVED, 

ONE IN THE RIGHT ULNAR BONE. 

DEAD 

GUADALUPE 

FUR SEAL MEXICO 2020 6 9 MARINE DEBRIS DEL NORTE CA SI MALNOURISHED ANIMAL WITH ENTANGLEMENT OF UNKNOWN MATERIAL. NO FURTHER DETAILS. SI 

GUADALUPE 

FUR SEAL MEXICO 2020 6 20 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI 

LARGE AMOUNT OF GREEN NYLON NETTING AROUND 

LOWER NECK/SHOULDERS CUTTING INTO SKIN 

DORSALLY, MODERATELY UNDERWEIGHT. 

SI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2020 6 22 

UNIDENTIFIED 

FISHERY 

INTERACTION 

OFFSHORE CA SI 

CAPTAIN DETECTED ANIMAL BADLY ENTANGLED IN NET. 

CREW ABLE TO SECURE ANIMAL IN DIPNET AND BRING 

ONBOARD VESSEL, MANUALLY RESTRAIN ANIMAL, AND 

CUT THE ANIMAL FREE OF NETTING. ANIMAL LOWERED 

BACK INTO THE WATER USING DIPNET AND OBSERVED 

SWIMMING AWAY. PHOTOS PROVIDED BY CAPTAIN 

SHOW ANIMAL IN REASONABLE BODY CONDITION WITH 

GREEN NYLON NETTING AROUND NECK. NO 

LACERATIONS SEEN AFTER NET WAS REMOVED. NET 

MATERIAL RETAINED BY TMMC. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 10 12 

UNIDENTIFIED 

FISHERY 

INTERACTION 

TILLAMOOK OR SI 

WAS FOUND BY PASSERS-BY ON REMOTE BEACH; WAS 

DISENTANGLED BY A STATE PARKS RANGER (CAPE 

LOOKOUT UNIT MANAGER KIRK BARHAM) AND 

IMMEDIATELY RELEASED ON SITE. THE ANIMAL DID NOT 

APPEAR TO HAVE ANY OBVIOUS INJURIES AND 

APPEARED VERY ALERT AND RESPONSIVE; SWAM ALIVE 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 10 31 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA SI 

HOOKED IN MOUTH (LOWER JAW) BY 18/0 OFFSET 

ROUND OR FLAT CIRCLE HOOK (5MM DIAMETER). 

ANIMAL WAS STRUGGLING DURING ATTEMPTED 

DEHOOKING (UNSUCCESSFUL) AND PRESUMED 

CUTTING OF LINE: HOOK AND 10CM MONOFILAMENT 

LEADER LEFT ON ANIMAL. OBSERVER PROGRAM. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2020 11 1 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA SI 

HOOKED IN MOUTH (SEEMINGLY UPPER RIGHT JAW) BY 

18/0 OFFSET ROUND OR FLAT CIRCLE HOOK (5.0MM 

DIAMETER). ANIMAL WAS STRUGGLING AS IT WAS 

PULLED TOWARD THE VESSEL UNTIL THE LINE WAS CUT: 

HOOK, 8M MONOFILAMENT LEADER, AND LIGHTSTICK 

LEFT ON ANIMAL. OBSERVER PROGRAM. 

SI 

GUADALUPE 

FUR SEAL MEXICO 2020 11 2 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN LEFT PECTORAL FLIPPER BY 18/0 OFFSET 

FLAT CIRCLE HOOK (5.0MM DIAMETER). ANIMAL WAS 

STRUGGLING AS IT WAS BROUGHT ALONG VESSEL, 

WHERE AFTER SEVERAL ATTEMPTS, IT WAS 

SUCCESSFULLY DEHOOKED: NO GEAR LEFT ON ANIMAL. 

SOME BLEEDING OBSERVED, ESPECIALLY AFTER 

DEHOOKING. OBSERVER PROGRAM. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 11 3 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN MOUTH (SEEMINGLY LOWER LEFT JAW) BY 

18/0 OFFSET FLAT CIRCLE HOOK (5.0MM DIAMETER). 

ANIMAL WAS STRUGGLING AS IT WAS BROUGHT ALONG 

VESSEL, WHERE IT WAS SUCCESSFULLY DEHOOKED: NO 

GEAR LEFT ON ANIMAL. OBSERVER PROGRAM. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

GUADALUPE 

FUR SEAL MEXICO 2020 11 3 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN RIGHT PECTORAL FLIPPER BY 18/0 OFFSET 

ROUND CIRCLE HOOK (5.0MM DIAMETER). AS CREW WAS 

PULLING THE ANIMAL TOWARD THE VESSEL, IT CAME 

FREE OF THE GEAR: NO GEAR LEFT ON ANIMAL. 

OBSERVER PROGRAM. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 12 5 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN MOUTH (CENTER LOWER JAW) BY 18/0 

OFFSET FLAT CIRCLE HOOK (5.0MM DIAMETER). ANIMAL 

WAS STRUGGLING AS IT WAS BROUGHT ALONG VESSEL, 

WHERE IT WAS SUCCESSFULLY DEHOOKED: NO GEAR 

LEFT ON ANIMAL. OBSERVER PROGRAM. 

NSI 

GUADALUPE 

FUR SEAL MEXICO 2020 12 5 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN MOUTH (PART NOT SPECIFIED) BY 18/0 

OFFSET ROUND CIRCLE HOOK (5.0MM DIAMETER). SOON 

AFTER THE ANIMAL WAS OBSERVED, IT CAME FREE OF 

THE GEAR: NO GEAR LEFT ON ANIMAL. OBSERVER 

PROGRAM. 

NSI 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 2 16 UNIDENTIFIED NET FISHERY OR DEAD 

A HARBOR PORPOISE WAS FOUND STRANDED IN A 

STATE OF MODERATE DECOMPOSITION. THE PORPOISE 

DISPLAYED EVENLY SPACED INDENTATIONS ON ITS 

FLUKE AND A SUBDERMAL HEMATOMA AT THE BASE OF 

THE HEAD. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 5 22 UNIDENTIFIED NET FISHERY OR DEAD 

A HARBOR PORPOISE WAS FOUND STRANDED AND IN A 

STATE OF MODERATE DECOMPOSITION. THE CARCASS 

DISPLAYED LONG KNIFE CUTS ON THE BODY AND THE 

DORSAL FIN WAS CUT OFF. THERE WAS HEMORARHAGE 

THROUGHOUT THE HEAD AND BODY, AND SUBSTANTIAL 

SUBSCAPULAR HEMATOMA. THE ANIMAL HAD A FISH 

LODGED IN ITS THROAT AND WAS IN GOOD BODY 

CONDITION. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 7 3 UNIDENTIFIED NET FISHERY OR DEAD 

A HARBOR PORPOISE WAS DISCOVERED FRESH DEAD 

WITH TWO LINEAR MARKS ALONG THE DORSAL 

PEDUNCLE IN ADDITION TO OTHER POTENTIAL NET 

MARKS. A NECROPSY WAS CONDUCTED, AND THE 

PORPOISE WAS DETERMINED TO HAVE ASPHYXIATED 

ON FISH, LIKELY WHILE ENTANGLED IN FISHING GEAR. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 7 16 UNIDENTIFIED NET FISHERY OR DEAD 

A HARBOR PORPOISE WAS DISCOVERED STRANDED, IN 

ADVANCED DECOMPOSITION. A FISH WAS LODGED IN 

THE ANIMAL'S THROAT, AND THE CARCASS DISPLAYED 

DISTINCTLY PATTERNED MARKS ON BODY, GASHES, 

AND EXTENSIVE HEMORRHAGE THROUGHOUT BODY. 

CARCASS WAS OTHERWISE IN GOOD BODY CONDITION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2016 10 31 GILLNET FISHERY WA DEAD 

A HARBOR PORPOISE CALF WAS FOUND STRANDED AND 

FRESHLY DEAD. THE ANIMAL DISPLAYED EVIDENCE OF 

NET ENTANGLEMENT, AND THERE WERE CLEAR LINE 

IMPRESSIONS AROUND THE ANIMAL'S HEAD, RIGHT 

FLIPPER, AND LEADING AND TRAILING EDGES OF 

FLUKES. GILLNET FISHING WAS NOTED TO BE 

OCCURRING IN THE AREA. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2016 11 7 GILLNET FISHERY WA DEAD A HARBOR PORPOISE WAS ENTANGLED AND KILLED IN A GILLNET DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 12 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

OR DEAD 

A HARBOR PORPOISE WAS FOUND IN A STATE OF 

MODERATE DECOMPOSITION AND NECROPSIED. THE 

ANIMAL'S LEFT PECTORAL FIN WAS AMPUTATED. THERE 

WAS ALSO TOOTH DAMAGE, FOAM IN THE TRACHEA, 

AND HEMORRHAGE THROUGOUT THE BODY. 

OTHERWISE, THE ANIMAL WAS IN EXCELLENT BODY 

CONDITION. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 3 1 

UNIDENTIFIED 

FISHERY 

INTERACTION 

CLATSOP OR DEAD 

PARTS MISSING AND APPEARED CUT OFF (DORSAL FIN, 

FLIPPERS); MASSIVE HEMORRHAGE; DEEP PUNCTURES 

ON BODY; BROKEN RIBS; BLOODY FLUID IN THORACIC 

AND ABDOMINAL CAVITIES. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 4 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

FOAM IN LUNGS; HEAVY HEMORRHAGE; BLOODY FLUID 

IN THORACIC CAVITY; TEETH MISSING; LARGE FISH IN 

THROAT AS WELL AS ONE IN STOMACH; POSSIBLE 

ASPHYXIATION AS WELL AS FISHERIES INTERACTION. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 4 29 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD HEAVY HEMORRHAGE; BROKEN JAW; LINE MARKS ON STOCK/TAIL; THE ANIMAL HAD GOOD BODY CONDITION. DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 5 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

HEAVY TRAUMA/HEMORRHAGE AROUND HEAD AND 

THORAX; CUTS ON BODY; THE PORPOISE HAD 

EXCELLENT BODY CONDITION. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 5 4 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

FLUKE CUT OFF; TEETH MISSING; LINEAR MARKS FROM 

THORAX TO HEAD; HEMORRHAGE; FOAM IN TRACHEA; 

FETUS HAD SUBSTANTIAL HEMORRHAGE AND BLOODY 

FLUID IN THORAX AND ABDOMINAL CAVITIES; GOOD 

BODY CONDITION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 5 18 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

SUSPICIOUS, DEEP 3.5 CM DIA. HOLE IN PEDUNCLE 

(FROM GAFF?); FLUKES COMPLETELY GONE; 

DAMAGE/INDENTATIONS IN BONE ALONG JAW EDGES; 

HEMORRHAGE IN JAW BONES; PORPOISE VERY 

DECOMPOSED AND SCAVENGED. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 5 22 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD 

LEFT FLUKE AND FLIPPER CUT OFF; HEMORRHAGE IN 

BODY; TOOTH INDENTATIONS FROM UPPER JAW ALONG 

GUMS IN LOWER JAW; THE PORPOISE HAD EXCELLENT 

BODY CONDITION. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 6 9 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PACIFIC WA DEAD HEMORRHAGE, HEMATOMAS, LINE MARKS, SLASHES, AND TOOTH DAMAGE DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2017 8 30 

UNIDENTIFIED 

FISHERY 

INTERACTION 

PIERCE WA DEAD 

LINEAR LACERATION AROUND TOP OF JAW AND 

MATCHING LACERATION RIGHT SIDE LOWER JAW. 

LINEAR LACERATION ON BOTH PECTORAL FINS AS WELL 

AS LACERATION FLUKE AND ONE AT BASE OF DORSAL 

FIN. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2017 10 28 GILLNET FISHERY KITSAP WA DEAD 

LINEAR LACERATIONS AND IMPRESSION AROUND HEAD 

THROUGH UPPER JAW AT GAPE AND AROUND RIGHT 

PECTORAL FIN. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2017 10 30 GILLNET FISHERY KING WA DEAD 

MONOFILAMENT LINE MARKINGS ON ROSTRUM, LINE 

WRAPS AROUND RIGHT PECTORAL FLIPPER AND 

DORSAL FIN (CUT INTO MID-TRAILING EDGE OF DORSAL 

FIN APPROX 1.5 INCHES LONG, PARALLEL TO BODY, 

WITH CORRESPONDING WRAP MARK ON LEADING EDGE 

OF FIN). LINE WRAP IMPRESSIONS ON BOTH SIDES OF 

FLUKE WITH ABRASIONS ALONG TRAILING EDGES. 

DEAD 

HARBOR 

PORPOISE 

SAN 

FRANCISCORUSSIAN 

RIVER 

2018 4 11 GILLNET FISHERY ALAMEDA CA DEAD 

MANDIBLE HAD BEEN ENTANGLED BY AN UNKNOWN OBJECT. THE OBJECT WAS ABSENT AT THE TIME OF 

EXAMINATION, BUT THE ENTANGLEMENT CAUSED 

SEVERE DAMAGE, INCLUDING THE LOSS OF SEVERAL 

TEETH AND A FRACTURE OF THE RIGHT HEMI MANDIBLE. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2018 5 14 GILLNET FISHERY CLATSOP OR DEAD 

THE PORPOISE HAD GOOD EXTERNAL BODY CONDITION 

AND HAD NUMEROUS MARKS ON BODY SUGGESTING 

FISHERY INTERACTION AND HEMORRHAGING ON BODY. 

FOAM IN LUNGS. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2018 7 24 GILLNET FISHERY CLATSOP OR DEAD 

DEEP GASHES AND PUNCTURE WOUNDS. ANIMAL HAD 

ROPE MARKS AND CUTS ON TAIL STOCK AND 

HEMORRHAGE FROM HEAD TO ABDOMEN ON RIGHT 

SIDE. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

NORTHERN TAIL STOCK CUT OFF; HEMORRHAGE THROUGHOUT HARBOR OREGON - 2018 8 6 GILLNET FISHERY PACIFIC WA DEAD ANIMAL OTHERWISE THE PORPOISE HAD GOOD BODY DEAD 

PORPOISE WASHINGTON CONDITION. COAST 

WASHINGTON HARBOR INLAND 2018 10 21 GILLNET FISHERY KITSAP WA DEAD PORPOISE WATERS 

EVIDENCE OF FISHERY ENTANGLEMENT. 15CM 

LACERATION PENETRATES FULL BLUBBER AND GOES 

INTO MUSCLE AND CAN FEEL RIBS BROKEN. MULTIPLE 

IMPRESSIONS AND LACERATION ACROSS ROSTRUM 

AND LOWER JAW; CRISS-CROSSES TO OTHER SIDE; 

ABRASIONS ON SNOUT; ~2CM SMALL CHUNK OUT OF 

THE LEFT FORE FLIPPER, LACERATION; IMPRESSIONS 

AROUND RIGHT FORE FLIPPER; IMPRESSION ON DEAD 

LEADING EDGE OF DORSAL FIN. EVIDENCE OF FISHERY 

ENTANGLEMENT: SEVERAL IMPRESSIONS AND 

LACERATIONS ON FIN, FLIPPERS, ROSTRUM, FLUKE. 

15CM LACERATION ON RIGHT BODY CONSISTENT WITH 

SLICING. ALL COMMERCIAL FISHING CLOSED IN THE 

AREA AROUND THE TIME OF STRANDING. HOWEVER, 

THERE WAS TRIBAL FISHING IN THE AREA DURING THAT 

TIME (7 DAYS/WEEK). 

LINEAR IMPRESSIONS ON DORSAL FIN, ROSTRUM, AND WASHINGTON HARBOR LOWER JAW. ACTIVE FISHING IN AREA. CARCASS INLAND 2018 10 24 GILLNET FISHERY KITSAP WA DEAD DEAD 

PORPOISE CONDITION WAS ROBUST, IMPLYING ACUTE DEATH WATERS EVENT. 

LOWER TEETH LOOSE AND MISSING; BLOODY FOAM IN 

NORTHERN TRACHEA; HEMORRHAGE BELOW TONGUE ON LOWER 

HARBOR OREGON- JAW; LINE MARKS ALONG DORSAL PEDUNCLE; SOME 2019 3 22 GILLNET FISHERY PACIFIC WA DEAD DEAD 

PORPOISE WASHINGTON SKIN SCAVENGING ON HEAD AND BODY. EXCELLENT 

COAST BODY CONDITION OTHERWISE. INJURIES CONSISTENT 

WITH DROWNING IN GILLNET. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2019 6 26 VESSEL STRIKE SAN JUAN WA DEAD 

NA DEAD FRESH HARBOR PORPOISE WITH EVIDENCE 

OF EXTENSIVE INJURY FROM PROP WOUND. MOST SKIN 

AND BLUBBER MISSING FROM BACK OF SKULL TO 

DORSAL FIN. LINEAR CUTS PRESENT UNDER LEFT 

PECTORAL FIN ~13.5CM, DORSO-CAUDAL TO MID 

THORAX 33CM, THEN CRANIAL ?19.5CM, THEN CAUDAL 

OF RIGHT DORSAL 19CM, THEN CRANIAL TO RIGHT 

PECTORAL FIN ~21CM. SCAVENGING ALONG FLUKES 

AND FACE, LIKELY POST MORTEM. EYES SIGNIFICANT 

CLEAN-CUT WOUND WRAPPING AROUND UPPER BODY 

WITH MOST OF SKIN AND BLUBBER MISSING FROM 

BEHIND THE HEAD TO THE DORSAL FIN. MULTIPLE 

LESIONS ON LOWER HALF OF BODY, THOUGH MINOR IN 

COMPARISON. SUSPECTED PROPELLER STRIKE. DEAD 

FRESH HARBOR PORPOISE WITH EVIDENCE OF 

EXTENSIVE INJURY FROM PROP WOUND. MOST SKIN 

AND BLUBBER MISSING FROM BACK OF SKULL TO 

DORSAL FIN. LINEAR CUTS PRESENT UNDER LEFT 

PECTORAL FIN ~13.5CM, DORSO-CAUDAL TO MID 

THORAX 33CM, THEN CRANIAL ?19.5CM, THEN CAUDAL 

OF RIGHT DORSAL 19CM, THEN CRANIAL TO RIGHT 

PECTORAL FIN ~21CM. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2019 7 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2019 8 5 GILLNET FISHERY, TRIBAL PACIFIC WA DEAD 

GOOD BODY CONDITION; TREMENDOUS AMOUNT OF 

WHITE FOAM COMING FROM BLOWHOLE WHEN FIRST 

STRANDED; TREMENDOUS AMOUNT OF FOAM IN 

BRONCHI AND LUNGS AT TIME OF NECROPSY; THERE 

WAS A DEEP GAFF CUT ON HEAD; EYES WERE BLOODY 

AND AREAS OF TRAUMA ON BODY, INCLUDING RIB 

MARKS ON LUNGS; MILD AMOUNT OF BLOOD IN 

THORACIC CAVITY; BROKEN RIBS; SEVERE 

NEUTROPHILIC PNEUMONIA ON HISTOPATHOLOGY; 

GASTRIC NEMATODIASIS AND ULCERATION WERE ALSO 

NOTED, WITH ASSOCIATED PROLIFERATIVE CUTANEOUS 

LESIONS. 

DEAD 

HARBOR 

PORPOISE 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2019 8 15 GILLNET FISHERY, TRIBAL PACIFIC WA DEAD 

ANIMAL HAD GOOD BODY CONDITION; THERE WERE 

SIGNS OF TRAUMA WHICH INCLUDED NET MARKS, 

BLOOD IN THE THORACIC CAVITY, AND RIB MARKS ON 

THE LUNGS. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2019 10 20 GILLNET FISHERY, TRIBAL PIERCE WA DEAD 

LINEAR IMPRESSIONS/ LACERATIONS APPEAR TO HAVE 

STARTED TO HEALED AREA OF ABRASIONS/ LINEAR 

IMPRESSION AROUND ROSTRUM AND LOWER LIP, 

DORSAL FIN AND FLUKES. SEE DRAWINGS FOR SPECIFIC 

LOCATIONS. JUSTIFICATION: BASED ON THE LINEAR 

IMPRESSION AROUND ROSTRUM, LOWER JAW DORSAL 

AND FLUKE. IT CONFIRMS PORPOISE WAS RECENTLY 

ENTANGLED BUT SUSPECT THE LIKELY RELEASE ALIVE. 

SUSPECT DIED TO INJURIES AND SUSPECT CAPTURE 

MYOPATHY 1-3 DAYS LATER. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 12 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH CUTS CONSISTENT WITH A 

GILLNET INTERACTION, CONSIDERED TO BE PART OF 

SAME EVENT OR FISHERY. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 12 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH EVIDENCE OF NET MARKS, 

CONSIDERED TO BE PART OF SAME EVENT OR FISHERY. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 12 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH EVIDENCE OF NET MARKS, 

CONSIDERED TO BE PART OF SAME EVENT OR FISHERY. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 13 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH EVIDENCE OF NET MARKS, 

CONSIDERED TO BE PART OF SAME EVENT OR FISHERY. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 13 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH EVIDENCE OF NET MARKS, 

CONSIDERED TO BE PART OF SAME EVENT OR FISHERY. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 8 13 GILLNET FISHERY, TRIBAL CLALLAM WA DEAD 

A TOTAL OF SIX HARBOR PORPOISE WERE FOUND DEAD 

WITH EVIDENCE OF GILLNET MORTALITY IN MAKAH BAY 

OVER 2 DAYS. THREE PORPOISE CAME ASHORE ON 8/12 

IN A NET. THE NEXT DAY, THREE MORE PORPOISE 

STRANDED DEAD WITH EVIDENCE OF NET MARKS, 

CONSIDERED TO BE PART OF SAME EVENT OR FISHERY. 

DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 9 26 VESSEL STRIKE WHATCOM WA SI ANIMAL WITH PROPELLER STRIKE INJURIES DESCRIBED AS SEVERE HEAD TRAUMA. EUTHANIZED. DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 9 30 GILLNET FISHERY KITSAP WA DEAD MULTIPLE DEEP IMPRESSIONS ON BOTH SIDES OF TAIL FLUKE CONSISTENT WITH GILLNET ENTANGLEMENT. DEAD 

HARBOR 

PORPOISE 

WASHINGTON 

INLAND 

WATERS 

2020 10 3 GILLNET FISHERY WHATCOM WA DEAD FRESH DEAD ANIMAL ENTANGLED IN NETTING. DEAD 

HARBOR SEAL CALIFORNIA 2016 1 17 HARASSMENT SAN DIEGO CA NSI 

APPARENTLY HEALTHY NEONATE WITH UMBILICUS WAS 

REMOVED FROM BEACH BY PUBLIC. TREATED AT REHAB 

FACILITY AND RELEASED. ANIMAL WAS ALSO 

DOCUMENTED ON 3/23 AND 3/24 BEING HANDLED BY THE 

PUBLIC. 

SI 

HARBOR SEAL CALIFORNIA 2016 1 24 HARASSMENT SAN DIEGO CA NSI APPARENTLY HEALTHY NEONATE WAS REMOVED FROM BEACH BY PUBLIC. DIED IN REHAB FACILITY. DEAD HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 2 23 HOOK AND LINE FISHERY KITSAP WA DEAD 

A HARBOR SEAL WAS FOUND DEAD ON A PUBLIC BEACH. 

A LIMITED NECROPSY WAS CONDUCTED, AND A FISHING 

HOOK AND LINE WAS FOUND LODGED IN THE SEAL'S 

INTESTINES. 

DEAD 

HARBOR SEAL CALIFORNIA 2016 2 24 HARASSMENT SAN LUIS OBISPO CA NSI UNDERWEIGHT ANIMAL WITH FRESHLY ABSENT UMBILICUS HANDLED BY PUBLIC. TREATED AT REHAB FACILITY AND RELEASED. SI 

HARBOR SEAL CALIFORNIA 2016 2 25 HARASSMENT SAN DIEGO CA NSI 

NEONATE WITH ATTACHED UMBILICUS WAS REMOVED 

FROM BEACH BY PUBLIC. ANIMAL WAS LETHARGIC WITH 

LABORED BREATHING. TREATED AT REHAB FACILITY 

AND RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 2 28 HARASSMENT MARIN CA NSI MILDLY UNDERWEIGHT NEONATE REMOVED FROM BEACH BY PUBLIC. DIED IN REHAB. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2016 2 29 HARASSMENT MARIN CA NSI 

HARASSED - NETTED OUT OF WATER BY PUBLIC, 

MODERATELY UNDERWEIGHT, VOCAL, FULL LANUGO 

COAT, 3-4 CM UMBILICUS DRY AT TIP PRESENT. 

TREATED AT REHAB FACILITY AND RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 3 1 HARASSMENT MARIN CA NSI 

REMOVED FROM WILD BY KAYAKER AND BROUGHT TO 

CAMPGROUND, FULL LANUGO COAT, FRESH PINK 

UMBILICUS PRESENT, EMACIATED. TREATED AT REHAB 

FACILITY AND RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 3 2 HARASSMENT MARIN CA NSI 

REMOVED FROM WILD BY PUBLIC. MODERATELY 

UNDERWEIGHT, FULL LANUGO COAT WITH 3 CM DRIED 

UMBILICUS PRESENT. TREATED AT REHAB FACILITY AND 

RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 3 15 HARASSMENT SAN LUIS OBISPO CA NSI HARASSED - ON TARP BEING PULLED AWAY FROM THE WATER BY MEMBER OF THE PUBLIC, FULL LANUGO COAT, EMACIATED. TREATED AT REHAB AND RELEASED. SI 

HARBOR SEAL CALIFORNIA 2016 3 16 HARASSMENT MARIN CA NSI 

HARASSED - PUBLIC PULLED OUT OF WATER, 

MODERATELY UNDERWEIGHT, FULL LANUGO COAT, 3 

CM LONG UMBILICUS DRY AT TIP PRESENT. TREATED AT 

REHAB FACILITY AND RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 3 20 HARASSMENT HUMBOLDT CA NSI BEING FED BY MEMBERS OF THE PUBLIC. FOUND ON A PICNIC TABLE. DIED IN REHAB. SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 3 25 SHOOTING OR DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF MODERATE 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. 

PELLET HOLES THROUGHOUT THE SKULL AND BODY AS 

WELL AS BLOODY FLUID IN THE THORACIC CAVITY 

INDICATED THE ANIMAL HAD BEEN SHOT. 

DEAD 

HARBOR SEAL HOOD CANAL 2016 4 4 MARINE DEBRIS WA DEAD 

A HARBOR SEAL WAS FOUND ENTANGLED IN BUOY 

LINES THAT SUPPORTED CAGES CONTAINING MUSSELS 

BEING GROWN TO MONITOR FOR ENVIRONMENTAL 

CONTAMINATION DURING A REMEDIATION PROJECT. 

DEAD 

HARBOR SEAL CALIFORNIA 2016 4 12 HARASSMENT MARIN CA NSI 

REMOVED FROM WILD BY PUBLIC, EMACIATED, 

UMBILICUS FRESHLY ABSENT. TREATED AT REHAB 

FACILITY AND RELEASED. 

SI 

HARBOR SEAL CALIFORNIA 2016 4 26 DOG ATTACK HUMBOLDT CA SI UNDERWEIGHT ANIMAL WITH DOG BITES. DIED IN REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 4 26 SHOOTING WA DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF ADVANCED 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. 

PELLET SIZED PENETRATING WOUNDS IN THE HEAD AND 

BODY, WITH ASSOCIATED HEMORRHAGING INDICATED 

THE ANIMAL HAD BEEN SHOT. 

DEAD 

HARBOR SEAL CALIFORNIA 2016 5 11 HARASSMENT MARIN CA NSI 

MODERATELY UNDERWEIGHT, UMBILICUS ABSENT SITE 

CLOSED AND HEALED, HARASSED - PUBLIC TRYING TO 

DRAG TO WATER, SMALL TAR PATCHES ON MULTIPLE 

PARTS OF BODY. 

SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 5 21 HARASSMENT GRAYS HARBOR WA SI 

AN EMACIATED HARBOR SEAL PUP WAS REMOVED 

FROM A BEACH, BROUGHT TO A CONDO, AND FED MILK 

BY A MEMBER OF THE PUBLIC. IT ASPIRATED MILK INTO 

ITS AIRWAY, AND LATER DIED. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 5 26 HARASSMENT OR SI 

A HARBOR SEAL WAS REPORTEDLY PICKED UP BY A 

MEMBER OF THE PUBLIC, MOVED FROM ITS ORIGINAL 

LOCATION, AND LATER RETURNED TO ITS ORIGINAL 

LOCATION. IT WAS LATER FOUND DEAD. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 6 10 SHOOTING OR DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF ADVANCED 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. 

THERE WERE BULLET ENTRANCE AND EXIT WOUNDS IN 

THE SKULL, AND HEMORRHAGE THROUGHOUT THE 

BODY INDICATED THE ANIMAL HAD BEEN SHOT. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 6 16 SHOOTING OR DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF MODERATE 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. A 

HOLE IN THE HEAD WITH ASSOCIATED HOMORHAGE 

INDICATED THE ANIMAL HAD BEEN SHOT. OTHERWISE 

THE ANIMAL WAS IN EXCELLENT BODY CONDITION. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 6 23 HARASSMENT WA NSI 

A HARBOR SEAL PUP THAT HAULED OUT IN A DOG PARK 

WAS OBSERVED BEING HELD BY MEMBERS OF THE 

PUBLIC. OVER REPEATED OBSERVATIONS THE SEAL 

PUP DID NOT MOVE LOCATION AND THE MOTHER WAS 

NOT ATTENDENT, SO THE PUP WAS TRANSPORTED TO A 

REHABILITATION CENTER AND LATER RELEASED. 

NSI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 7 3 HARASSMENT PIERCE WA NSI 

A HARBOR SEAL PUP BOARDED A SAILBOAT, BUT WAS 

UNABLE TO EXIT AFTER CLIMBING ABOARD. WDFW 

RESPONDED AND REMOVED THE SEAL. THE SEAL WAS 

REPORTED TO APPEAR HEALTHY. 

NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 1 HARASSMENT WA NSI 

A LIVE HARBOR SEAL PUP HAD REPORTEDLY BEEN 

OBSERVED BEING HIT BY PEOPLE. THE SEAL WAS DEAD 

WHEN THE STRANDING RESPONDER ARRIVED. A 

NECROPSY WAS CONDUCTED, AND THE SEAL HAD A 

BROKEN JAW. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 2 HARASSMENT KITSAP WA NSI 

A HARBOR SEAL PUP WAS SEEN FOR DAYS HAULED OUT 

ON A HIGH-USE CITY DOCK. THE MOTHER WAS NOT IN 

ATTENDANCE, WHICH MAY HAVE BEEN DUE TO THE 

HIGH PUBLIC USE OF THE AREA. THE PUP WAS 

CAPTURED AND SENT TO A REHABILITATION CENTER 

WHERE IT LATER DIED. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2016 8 10 HOOK AND LINE FISHERY OR DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF MODERATE 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. A 

FISH HOOK AND LINE WAS FOUND IN THE INTESTINES 

AND THERE WAS A SUBSTANTIAL AMOUNT OF BLOODY 

FLUID IN THE THORACIC AND ABDOMINAL CAVITIES. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 11 GILLNET FISHERY KITSAP WA DEAD 

A FRESH DEAD HARBOR SEAL WAS FOUND FLOATING IN 

AN AREA ACTIVELY BEING FISHED WITH GILLNETS. THE 

SEAL HAD NET-LIKE LINEAR IMPRESSIONS ON ITS EYES, 

CHEST, SHOULDERS, AND PELVIS. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 15 GILLNET FISHERY KITSAP WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING IN A STATE OF 

MODERATE DECOMPOSITION AND A NECROPSY WAS 

CONDUCTED. THE CARCASS DISPLAYED CIRCULINEAR 

HEMORRHAGING AROUND THE LOWER JAW, HEAD, 

NECK, AND PELVIS. THERE WAS GILLNET FISHING 

OCCURING IN THE AREA. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 15 GILLNET FISHERY KITSAP WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING IN A STATE OF 

MODERATE DECOMPOSITION AND A NECROPSY WAS 

CONDUCTED. THERE WAS CIRCULINEAR 

HEMORRHAGING AROUND THE LOWER JAW AND BASE 

OF THE NECK. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 15 GILLNET FISHERY KITSAP WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING FRESHLY DEAD. 

A NECROPSY WAS CONDUCTED. THERE WAS 

HEMORRHAGE AROUND THE HEAD, NECK, AND MIDBELLY. DEAD 

HARBOR SEAL 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2016 8 24 

UNIDENTIFIED 

FISHERY 

INTERACTION 

WA DEAD 

A HARBOR SEAL WAS FOUND IN A STATE OF MODERATE 

DECOMPOSITION AND A NECROPSY WAS CONDUCTED. 

THERE WAS LINEAR HEMORRHAGE JUST BEHIND THE 

JAW EXTENDING VENTRALLY, HEMORRHAGE IN THE 

NECK AND BODY, RIB MARKS ON THE LUNG, AND THE 

SEAL WAS IN EXCELLENT BODY CONDITION. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 25 GILLNET FISHERY WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING FRESHLY DEAD. 

A NECROPSY WAS CONDUCTED. THE EXAMINER NOTED 

LINEAR LINES/IMPRESSIONS ACROSS THE EYE. THE 

HEAD WAS ALSO BLOODY AND SWOLLEN, AND THE 

SKULL WAS LIKELY FRACTURED. IT APPEARED THE SEAL 

HAD BECOME ENTANGLED AND WAS THEN 

BLUDGEONED. GILLNET FISHING WAS OCCURRING 

NEARBY. 

DEAD 

HARBOR SEAL CALIFORNIA 2016 8 26 SHOOTING MARIN CA SI 

FOUND ALIVE IN SURF WITH BLEEDING FROM THE HEAD. 

APPROACHABLE, GOOD BODY CONDITION. RADIOLOGY 

AT TMMC FOUND A CRANIAL FRACTURE WITH A BULLET 

AND FRAGMENT SCATTER IN THE SOFT TISSUES OF THE 

LEFT SIDE OF THE HEAD. EUTHANIZED IN REHAB. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 27 GILLNET FISHERY WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING FRESHLY DEAD. 

A NECROPSY WAS CONDUCTED. THE EXAMINER NOTED 

LINEAR LINES/IMPRESSIONS ACROSS THE EYE. THE 

HEAD WAS ALSO BLOODY AND SWOLLEN, AND THE 

SKULL WAS LIKELY FRACTURED. IT APPEARED THE SEAL 

HAD BECOME ENTANGLED AND WAS THEN 

BLUDGEONED. GILLNET FISHING WAS OCCURRING 

NEARBY. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 8 31 VESSEL STRIKE SAN JUAN WA DEAD 

A FRESHLY DEAD HARBOR SEAL WAS FOUND STRANDED 

WITH TWO PARALLEL SLICES ON ITS DORSAL SIDE THAT 

APPEARED TO BE A PROPELLER INJURY. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 9 2 GILLNET FISHERY WA DEAD 

A HARBOR SEAL WAS FOUND FLOATING DEAD IN A 

STATE OF MODERATE DECOMPOSITION. A NECROPSY 

WAS CONDUCTED. IN ADDITION TO LINEAR 

IMPRESSIONS, THE SEAL HAD THREE DEEP LINEAR 

CUTS ON THE HEAD AND SHOULDER. 

DEAD 

HARBOR SEAL CALIFORNIA 2016 9 11 SHOOTING DEL NORTE CA DEAD CARCASS NECROPSIED. APPARENT GUN SHOT WOUND TO THE HEAD, BULLET NOT FOUND. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 9 22 HOOK AND LINE FISHERY WA NSI 

A HARBOR SEAL PUP WITH A 4 OZ FISHING LURE 

HOOKED TO ITS HIND FLIPPER WAS CAPTURED, THE 

HOOK WAS REMOVED, AND THE ANIMAL WAS 

RELEASED. 

NSI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2016 9 25 GILLNET FISHERY WA DEAD 

A HARBOR SEAL WAS FOUND DEAD, FLOATING IN A 

HARBOR. THE SEAL HAD NET IMPRESSIONS / 

INDICATIONS ON ITS BODY AND GILLNET FISHING WAS 

OCCURING IN THE AREA. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

A HARBOR SEAL PUP WAS FOUND DEAD IN A STATE OF 

MODERATE DECOMPOSITION. THE PUP APPEARED AS IF 

IT HAD BEEN WRAPPED/ENTANGLED IN ROPE OR NET, 

SOUTHERN AND THERE WAS SUBSTANTIAL HEMORRHAGE AROUND HARBOR SEAL 2016 9 29 GILLNET FISHERY WA DEAD DEAD 

PUGET SOUND THE CHEST, LEADING EDGE OF FORE FLIPPERS, AND 

NOSE. THE ANIMAL ALSO HAD A PUNCTURED LEFT EYE. 

THERE WAS SALMON GILLNET FISHING OCCURING IN 

THE AREA. 

CARCASS FOUND AT THE BASE OF INDIAN BEACH TRAIL 

STAIRS APPROXIMATELY 100 YARDS SOUTH. HOOK WAS 

EMBEDDED ON THE RIGHT SIDE OF THE ANIMALS NECK 

HARBOR SEAL CALIFORNIA 2016 10 14 SHOOTING HUMBOLDT CA DEAD AND LINE WAS WRAPPED IN KELP MASS NEARBY. DEAD 

APPARENT GUN SHOT WOUND TO THE HEAD. 

PENETRATING WOUND WITH CLEAN MARGINS ON FRESH 

CARCASS WITH MINIMAL TO NO SCAVENGING PRESENT. 

A HARBOR SEAL PUP WAS FOUND STRANDED WITH ALL UNIDENTIFIED TISSUE REMOVED FROM ITS SHOULDERS TO ITS EYES, HARBOR SEAL HOOD CANAL 2016 10 18 FISHERY WA DEAD DEAD 

AND WHAT APPEARED TO BE A PENETRATING GAFF INTERACTION WOUND ON ITS HEAD. 

HARBOR SEAL CALIFORNIA 2017 2 10 VESSEL STRIKE MONTEREY CA DEAD 

THREE LACERATIONS THAT RUN DIAGONALLY ACROSS 

THE BACK OF THE ANIMAL, EQUIDISTANT (22-24CM) 

FROM EACH OTHER . THE ANTERIOR AND POSTERIOR 

PROPELLER STRIKES BROKE THROUGH THE SKIN AND 

PROBABLY THE BLUBBER. THE MIDDLE PROPELLER 

STRIKE DID NOT BREAK SKIN BUT IS EVIDENT AS A SCAR DEAD 

WITH REMOVED FUR. BEYOND THIS APPARENT 

SCAVENGING HAS OBSCURED OBSERVATION OF HUMAN 

INTERACTION. BONES AT LEFT SIDE OF BACK OF SKULL 

ARE BROKEN. SLIGHTLY BLOATED AND EYES 

SCAVENGED. 

OREGON - DORSAL ENTRY WOUND APPROXIMATELY 1/2 INCH IN HARBOR SEAL WASHINGTON 2017 3 2 SHOOTING LINCOLN CA DEAD DEAD 

DIAMETER. EXIT WOUND ON VENTRUM. COAST 

PUP (UMBILLICUS FRESHLY ABSENT) ILLEGALLY PICKED 

UP BY MEMBER OF THE PUBLIC AND BROUGHT HOME 

SANTA OVERNIGHT WHERE IT WAS FED MILK AND FISH OIL. HARBOR SEAL CALIFORNIA 2017 4 9 HARASSMENT CA NSI SI 

BARBARA PERSON TRIED TO RELEASE THE ANIMAL THE NEXT DAY, 

BUT IT WOULD NOT LEAVE BEACH. TAKEN INTO REHAB 

FACILITY, TREATED AND RELEASED. 

MALNOURISHED PUP WRAPPED IN A TOWEL BY 

HARBOR SEAL CALIFORNIA 2017 4 10 HARASSMENT SONOMA CA NSI MEMBERS OF THE PUBLIC AND MOVED AWAY FROM SI 

COLONY. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2017 4 17 DOG ATTACK DEL NORTE CA SI DOG ATTACKED ANIMAL. EUTHANIZED AT REHAB FACILITY. DEAD 

HARBOR SEAL CALIFORNIA 2017 4 21 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2017 4 22 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2017 4 29 HARASSMENT MARIN CA SI PEOPLE TOUCHING AN EMACIATED SEAL PUP ON THE BEACH. SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2017 5 19 VEHICLE COLLISION CLATSOP OR DEAD 

PUP WITH UMBILLICUS PRESENT, TRAUMA AND 

HEMORRHAGING DETERMINED TO BE RELATED TO 

BEING STRUCK BY VEHICLE. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 5 26 HARASSMENT SKAGIT WA NSI PUP BEING PET BY PEOPLE ON BEACH. REMOVED FROM BEACH AND EUTHANIZED AT REHAB FACILITY. DEAD 

HARBOR SEAL 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 5 27 HARASSMENT LINCOLN OR NSI 

NEWBORN PUP WAS IN A HEAVILY USED SURFING AREA, WAS CONSTANTLY APPROACHED BY PEOPLE ON BEACH 

AND IN WATER DESPITE POSTED SIGNS; 5/28 WAS 

RELOCATED TO HAUL OUT AREA COVE NORTH OF INN 

AT OTTER CREST; GREEN PAINT APPLIED TO TOP OF 

HEAD. 

SI 

HARBOR SEAL CALIFORNIA 2017 5 31 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2017 6 7 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2017 6 9 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

VENTURA CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL HOOD CANAL 2017 6 17 HARASSMENT MASON WA NSI 

NEWBORN PUP WAS BEING PET BY MEMBERS OF THE 

PUBLIC. MOTHER DID NOT RETURN TO PUP AFTER A 

FEW DAYS AND PUP WAS REMOVED AND EUTHANIZED IN 

REHAB FACILITY. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 6 19 HARASSMENT WHATCOM WA DEAD NEWBORN PUP DUMPED IN SOMEONE'S YARD. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 6 25 HARASSMENT ISLAND WA NSI 

NEWBORN PUP THAT HAD BEEN IN GOOD CONDITION 

WAS BEING CONTINUALLY HARASSED ON A BUSY 

BEACH. ITS CONDITION DETERIORATED AND IT WAS 

EUTHANIZED AT A REHAB FACILITY. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 6 27 HARASSMENT WHATCOM WA NSI 

CHILDREN WERE PUTTING A NEWBORN SEAL INTO THE 

WATER AND SWIMMING WITH IT AT A BUSY BEACH. 

ANIMAL EVENTUALLY WAS RELOCATED TO A NEW 

BEACH. DESIGNATED SERIOUS INJURY DUE TO 

MATERNAL SEPARATION. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 6 28 HARASSMENT WHATCOM WA NSI 

CHILDREN WERE PUTTING A NEWBORN SEAL INTO THE 

WATER AND SWIMMING WITH IT AT A BUSY BEACH. 

SOME WERE THROWING ROCKS AT ANIMAL. ANIMAL 

CONDITION DETERIORATED. DESIGNATED SERIOUS 

INJURY DUE TO MATERNAL SEPARATION. 

SI 

HARBOR SEAL HOOD CANAL 2017 6 30 HARASSMENT MASON WA NSI PUP ILLEGALLY REMOVED FROM BEACH. SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 1 HARASSMENT SAN JUAN WA NSI NEWBORN PUP BEING HARASSED BY PEOPLE. SERIOUS INJURY DUE TO MATERNAL SEPARATION. SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 1 HARASSMENT KITSAP WA NSI 

NEWBORN PUP ILLEGALLY REMOVED FROM BEACH, 

BROUGHT TO PRIVATE RESIDENCE. PUP RETURNED TO 

BEACH AFTER REPORTING PARTY WAS TOLD OF 

ILLEGALITY OF REMOVING ANIMAL FROM BEACH. 

CONSIDERED SERIOUS INJURY BECAUSE OF MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL 

N OREGON -

WASHINGTON 

COAST 

2017 7 3 HARASSMENT LANE OR NSI WITNESS SAID BOYS WERE HITTING A SEAL WITH STICKS, DRAWING BLOOD. SI 

HARBOR SEAL CALIFORNIA 2017 7 8 SHOOTING SONOMA CA DEAD SHOTGUN PELLETS IN CRANIUM. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 16 HARASSMENT WHATCOM WA NSI 

PUP BEING SURROUNDED AND INTERACTED WITH 

PEOPLE ON A REGULAR BASIS. PUP UNDERWEIGHT AND DEHYDRATED. ASSIGNED AS A SERIOUS INJURY DUE TO 

LIKELY PUP / MOTHER SEPARATION BECAUSE OF 

PRESENCE OF PEOPLE. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 17 HARASSMENT ISLAND WA NSI 

PUP BEING FED, MOVED INTO WATER, AND TOUCHED BY 

PEOPLE ON THE BEACH. SERIOUS INJURY DUE TO PUP / 

MOTHER SEPARATION AGGRAVATED BY HUMAN 

ACTIVITY. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 20 HARASSMENT WHATCOM WA NSI 

PUP BEING APPROACHED BY PEOPLE ON BEACH. 

SERIOUS INJURY DUE TO LIKELIHOOD OF AGGRAVATED 

MATERNAL / PUP SEPARATION. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 22 HARASSMENT WHATCOM WA NSI PUP ON BEACH BEING MOVED INTO WATER BY PEOPLE. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 29 HARASSMENT SKAGIT WA NSI PUP REMOVED FROM BEACH AND FED AT PRIVATE RESIDENCE WHERE IT DIED. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 7 30 HARASSMENT PIERCE WA NSI PUP BEING HARASSED BY DOGS AND PEOPLE ON THE BEACH. SERIOUS INJURY DUE TO MATERNAL / PUP SEPARATION. SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 30 HARASSMENT WHATCOM WA NSI PUP REMOVED FROM BEACH BY BOATERS. SERIOUS INJURY DUE TO MATERNAL / PUP SEPARATION. SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 7 31 HARASSMENT ISLAND WA NSI HEALTHY PUP WAS HARASSED ON BEACH OVER A PERIOD OF DAYS AND EVENTUALLY DIED. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 5 HOOK AND LINE FISHERY SAN JUAN WA SI 

STRANDING RESPONSE TO A CALL OF A PUP WITH A 

FISH HOOK IN THE ROSTRUM. RESPONDERS ARRIVED 

AND CONFIRMED THAT PUP NO LONGER HAD HOOK 

ATTACHED. 

NSI 

HARBOR SEAL CALIFORNIA 2017 8 6 HARASSMENT SAN MATEO CA SI UNDERWEIGHT ANIMAL BEING TOUCHED BY MEMBERS OF THE PUBLIC. DIED AT REHAB FACILITY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 10 VESSEL STRIKE SAN JUAN WA DEAD FRESHLY-WEANED PUP CARCASS WITH THREE PROPELLER LACERATIONS. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 8 12 VESSEL STRIKE PIERCE WA DEAD CARCASS WITH THREE PROPELLER LACERATIONS BEING FED ON BY EAGLES. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 8 15 VESSEL STRIKE PIERCE WA DEAD PUP CARCASS FOUND WITH MULTIPLE LACERATIONS CONSISTENT WITH VESSEL STRIKE. DEAD HARBOR SEAL CALIFORNIA 2017 8 20 VESSEL STRIKE MARIN CA DEAD 

ANIMAL HAD A LARGE LACERATION IN ITS RIGHT 

SHOULDER AND A LARGE HEMATOMA IN THE RIGHT SIDE 

OF THE NECK AND HEAD CONSISTENT WITH VESSEL 

STRIKE INJURIES. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 23 MARINE DEBRIS KITSAP WA DEAD ONE OF SEVEN ANIMALS ENTANGLED IN A NET BUOY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 8 24 GILLNET FISHERY KITSAP WA DEAD CARCASS FOUND WITH REMNANTS OF GILLNET AROUND NECK. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 9 15 HOOK AND LINE FISHERY KING WA SI FISHING LINE PROTRUDING FROM MOUTH WITH BLOOD AROUND MOUTH. LIKELY INGESTED HOOK. SI 

HARBOR SEAL 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 10 5 SHOOTING CLATSOP OR DEAD 

ANIMAL WITH VERY GOOD BODY CONDITION WITH 

TREMENDOUS HEMORRHAGING AND HOLES ALL OVER 

BODY. 

DEAD 

HARBOR SEAL 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 10 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS 

HARBOR OR DEAD 

ONE OF TWO CARCASSES FOUND ON THE BEACH WITH 

PENETRATING WOUNDS CONSISTENT WITH THE USE OF 

A FISHING GAFF. 

DEAD 

HARBOR SEAL 

NORTHERN 

OREGON - 

WASHINGTON 

COAST 

2017 10 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

GRAYS 

HARBOR OR DEAD 

ONE OF TWO CARCASSES FOUND ON THE BEACH WITH 

PENETRATING WOUNDS CONSISTENT WITH THE USE OF 

A FISHING GAFF. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2017 10 13 DOG ATTACK WHATCOM WA SI 

ANIMAL DESCRIBED AS BEING ATTACKED BY DOG, 

POSSIBLY RESULTING IN A BROKEN TOE ON SEAL. 

TREATED AT REHAB FACILITY AND RELEASED. 

NSI 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

SOUTHERN HARBOR SEAL 2017 10 30 GILLNET FISHERY THURSTON WA DEAD ONE OF TEN HARBOR SEALS FOUND DEAD IN A GILLNET. DEAD 

PUGET SOUND 

NORTHERN 

OREGON - CARCASS FOUND WITH CIRCULAR DEEP IMPRESSION HARBOR SEAL 2017 11 1 GILLNET FISHERY JEFFERSON WA DEAD DEAD 

WASHINGTON AROUND SNOUT AND POSSIBLE GAFF MARKS. 

COAST 

RESEARCHERS ENCOUNTERED A HARBOR SEAL IN A 

SOUTHERN GILLNET AND BROUGHT IT ABOARD A VESSEL WHERE HARBOR SEAL 2017 12 1 GILLNET FISHERY PIERCE WA SI NSI 

PUGET SOUND THEY DISENTANGLED IT. THE ANIMAL WAS ABLE TO EXIT 

THE BOAT AND SWIM AWAY UNDER ITS OWN POWER. 

SOUTHERN HARBOR SEAL 2018 2 5 SHOOTING PIERCE WA DEAD PUGET SOUND 

REPORTED DEAD FLOATING. IN A BAY THAT HAS A 

HATCHERY UP CREEK FROM WHERE RECOVERED. NO 

ACTIVE COMMERCIAL FISHING IN AREA. PENETRATING 

WOUND BEHIND RIGHT ORBITAL, FRACTURING FROM 

RIGHT ORBITAL TO EAR. FOUND BULLET FRAGMENTS 

AMONG BONE FRAGMENTS IN MUSCLE AT NECK. SEAL 

WAS PREGNANT WITH 2ND TRIMESTER FETUS. DEAD 

TRACKING INJURY THOUGH LEFT SIDE OF SKULL. 

ENTRANCE INTO EYE AND THEN TRACKED BACK L SIDE 

SKULL FRACTURING SKULL ALL THE WAY BACK AND 

BULLET RECOVERED IN NECK MUSCLE WITH 

ASSOCIATED HEMORRHAGE. HEMORRHAGE INTO BRAIN 

AND SKULL CAVITY.FOUND BULLET FRAGMENTS AMONG 

BONE FRAGMENTS. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 2 7 SHOOTING PACIFIC WA SI 

PENETRATING PUNCTURE ON R SIDE OF BEHIND SKULL 

TRACKS ALL THE WAY TO EAR WHERE TISSUE IS 

SWOLLEN. CAN FEEL IT HIT BONE AND ACTUALLY 

PENTRATES IN SKULL. LARGE 10X6X3 CM WOUND 

LACERATION ON SIDE FACE RIGHT AT LOWER JAW, 

DEEP. MUSCLE JUST BELOW JAW CUT. ABLE TO FEEL 

CREPITUS UPON PALPATION OF THE SKULL AREA AT 

TOP OF HEAD ALONG SIDE, POSSIBLY FRACTURED. 

PUNCTURES TO R PELVIS AREA. NECK AND HEAD 

SWOLLEN. ANIMAL EUTHANIZED. 

DEAD 

HARBOR SEAL CALIFORNIA 2018 2 18 HARASSMENT SANTA BARBARA CA SI 

HUMAN-INDUCED ABANDONMENT. NEONATE (POSSIBLY 

ABANDONED) WITH PLACENTA AND UMBILICUS 

ATTACHED. ANIMAL WAS REMOVED FROM BEACH BY 

PUBLIC AND LATER EUTHANIZED AT FACILITY. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 2 20 SHOOTING GRAYS HARBOR WA DEAD 

PENETRATING WOUND WITH ASSOCIATED TRACKING 

HEMORRHAGE FROM BACK OF SKULL INTO SKULL WITH 

BONE FRACTURES OUT NEAR EYE AND THRU TO NASAL 

CAVITY WHERE THE BULLET WAS RECOVERED. 

OBVIOUSLY SIGNIFICANT ENOUGH TO CAUSE THE 

DEATH OF THE SEAL. 

DEAD 

HARBOR SEAL CALIFORNIA 2018 2 25 HARASSMENT SAN DIEGO CA SI 

HUMAN-INDUCED ABANDONMENT. LIFEGUARD PICKED 

NEONATE OFF OF SOUTH CASA BEACH AND BROUGHT IT 

TO THE LIFEGUARD TOWER. POSSIBLE ABANDONMENT 

PRIOR TO RESCUE. SLIGHTLY THIN, BUT BRIGHT, ALERT, 

AND RESPONSIVE. NO DETAILS ON OUTCOME. 

SI 

HARBOR SEAL CALIFORNIA 2018 3 20 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2018 4 4 HARASSMENT SANTA BARBARA CA SI ILLEGALLY REMOVED A PUP FROM BEACH AND BROUGHT TO A REHAB FACILITY. PUP VERY THIN, NO UMBILICAL CORD. OUTCOME UNKNOWN. SI 

HARBOR SEAL CALIFORNIA 2018 4 12 HARASSMENT SANTA CRUZ CA SI MALNOURISHED ANIMAL DRAGGED OUT OF SURFLINE BY PEOPLE. NO FURTHER DETAILS. SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 14 HARASSMENT CLATSOP OR SI 

CITIZEN PICKED UP LANUGO PUP FROM BEACH AND 

RETURNED IT. PUP WAS VERY ACTIVE FOR 2-3 DAYS, 

THEN LOST ACTIVITY/WEIGHT. PUP SUBSEQUENTLY 

DIED. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 14 HARASSMENT GRAYS HARBOR WA SI 

MULTIPLE PEOPLE REPORTED PETTING AND HARASSING 

A 100% LANUGO PUP WITH A FRESH UMBILCUS. SEAL 

REPORTED TO HAVE GONE BACK IN THE WATER WITH 

MOTHER DURING THE NIGHT BUT REPORTED BACK ON 

THE BEACH NEXT DAY. SEAL WAS MARKED WITH GREEN 

PAINT. SEAL WAS REPORTED GONE THE FOLLOWING 

DAY NOT SEEN AGAIN. 

SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 16 SHOOTING TILLAMOOK OR DEAD ANIMAL WITH EXCELLENT BODY CONDITION AND SHATTERED SKULL WAS CLEARLY SHOT IN THE HEAD. DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 21 HARASSMENT LINCOLN OR SI HARASSMENT. LANUGO COVERING MUCH OF POST- CRANIAL BODY. SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 21 SHOOTING PACIFIC WA DEAD ANIMAL WAS SHOT IN THE HEAD; THE SEAL HAD EXCELLENT BODY CONDITION. DEAD 

HARBOR SEAL CALIFORNIA 2018 4 22 HARASSMENT MARIN CA NSI MALNOURISHED PUP BEING HARASSSED BY PEOPLE AND DOGS. SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 4 22 SHOOTING CLATSOP OR SI 

THE SEAL WAS REPORTED ALIVE ON HIGHWAY 202, 

THEN DEAD SHORTLY THEREAFTER FROM BEING SHOT 

IN THE HEAD. FULL-TERM FETUS PRESENT WITH HEAD 

WELL DOWN INTO BIRTH CANAL. FETUS SHOWED SIGNS 

OF SIGNIFICANT TRAUMA AND HEMORRHAGE - CAUSE IS 

UNKNOWN. IT IS UNCLEAR WHETHER THE SEAL WAS 

RUN OVER, AS THERE WERE NO OBVIOUS SIGNS 

OUTSIDE OF CONDITION OF FETUS. THE SEAL HAD 

EXCELLENT BODY CONDITION. HISTOPATHOLOGY 

INDICATED MILD MULTIFOCAL ENCEPHALITIS, BUT 

INDICATED THAT IT WAS NOT THE PROXIMATE CAUSE 

OF DEATH. 

DEAD 

HARBOR SEAL CALIFORNIA 2018 4 24 HARASSMENT SAN MATEO CA SI CITIZEN PICKED MOVED EMACIATED PUP AWAY FROM THE WATER UP THE BEACH. SI 

HARBOR SEAL CALIFORNIA 2018 5 1 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL CALIFORNIA 2018 5 2 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

CA HALIBUT AND 

WHITE SEABASS HARBOR SEAL CALIFORNIA 2018 5 3 OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

SET GILLNET 

FISHERY 

NEWBORN PUP WITH FRESH UMBILICUS REMOVED OREGON- GRAYS FROM THE WATER BY PUBLIC BECAUSE THEY THOUGHT HARBOR SEAL WASHINGTON 2018 5 15 HARASSMENT WA SI SI 

HARBOR ANIMAL WAS DROWNING. MATERNAL SEPARATION. COAST SERIOUS INJURY UNDER CRITERIA P14. 

OREGON- PUBLIC PICKING UP NEWBORN PUP FROM BEACH AND GRAYS HARBOR SEAL WASHINGTON 2018 5 18 HARASSMENT WA SI ATTEMPTING TO RETURN IT TO THE WATER. MATERNAL SI 

HARBOR COAST SEPARATION. 

OREGON- PUP ILLEGALLY REMOVED FROM BEACH BY HARBOR SEAL WASHINGTON 2018 5 23 HARASSMENT LINCOLN OR SI SI 

CONCERNED CITIZENS. MATERNAL SEPARATION. COAST 

OREGON- SEAL WITH EXCELLENT BODY CONDITION THAT WAS 

HARBOR SEAL WASHINGTON 2018 6 11 SHOOTING PACIFIC WA DEAD OBVIOUSLY SHOT, AS THE SKULL WAS BLOWN OUT. DEAD 

COAST ASSOCIATED HEMORRHAGING. 

MAJOR TRAUMA TO HEAD, THREE LARGE PENETRATING OREGON- WOUNDS WITH LEFT EYE BLOWN OUT. THESE APPEAR HARBOR SEAL WASHINGTON 2018 6 11 SHOOTING COOS OR DEAD DEAD 

TO BE GUNSHOT WOUNDS. LACERATION AT BASE OF COAST LEFT HIND FLIPPER. 

WASHINGTON 

NORTHERN HARBOR SEAL 2018 6 13 VESSEL STRIKE SAN JUAN WA DEAD INLAND 

WATERS 

FRESHLY DEAD ADULT SEAL FOUND FLOATING. 

COLLECTED FOR FULL NECROPSY. BUCKSHOT 

EMBEDDED BEHIND AUDITORY CANAL. LEFT EYE PHITIC, 

FIBROUS, AND SHRUNKEN. FOUR PARALLEL 

LACERATIONS RUNNING ROUGHLY FROM LEFT TO 

RIGHT ON THE LEFT LATERAL SURFACE STARTING AT 

THE PELVIS AND CONTINUING TOWARDS THE LEFT HIND DEAD 

FLIPPERS WITH APPROXIMATELY 4.5 CM BETWEEN EACH 

LACERATION; CLEAN EDGES; INDICATIVE propeller 

STRIKE INJURIES. LACERATIONS EXTENDED THROUGH 

SEVERAL BONES IN LEFT HIND FLIPPERAND THERE WAS 

HEMORRAGING NEAR THE INJURIES AS WELL AS IN THE 

ABDOMINAL CAVITY. HISTORY OF GUNSHOT - SMALL 

BUCKSHOT FOUND AND RECOVERED FROM SKULL. 

PUP WITH UMBILLICUS MOVING UP AND DOWN THE OREGON- GRAYS BEACH, INTO AND OUT OF WATER. ILLEGALLY PICKED HARBOR SEAL WASHINGTON 2018 6 15 HARASSMENT WA SI SI 

HARBOR UP BY CITIZEN WHO BROUGHT ANIMAL TO HOTEL. COAST MATERNAL SEPARATION. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 6 15 HARASSMENT GRAYS HARBOR WA SI EMACIATED ANIMAL BEING KICKED AND HIT WITH STICKS BY PUBLIC. ANIMAL DIED ENROUTE TO REHAB FACILITY. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 6 20 HARASSMENT PIERCE WA SI PUBLIC HAD MOVED PUP WITH UMBILLICUS OUT OF THE WAY OF BOAT LAUNCH AREA. ANIMAL DIED AFTER 2 WEEKS AT REHAB FACILITY. MATERNAL SEPARATION. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 6 21 HARASSMENT WHATCOM WA SI JACKET PLACED OVER LANUGO PUP ON BEACH. MATERNAL SEPARATION. SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 6 26 VESSEL STRIKE PACIFIC WA SI 

A SERIES OF THREE PROPELLER CUTS ON RIGHT 

LATERAL SIDE OF BODY; THERE WERE ALSO CANINE 

PUNCTURE WOUNDS THAT APPEARED TO BE POSTMORTEM AND, THEREFORE, NOT THE CAUSE OF DEATH. 

THE LIVE PUP WAS PICKED UP BY A WDFW OFFICER AND 

THE SEAL DIED IN TRANSIT. THE ANIMAL HAD FAIR BODY 

CONDITION. 

DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 6 26 VESSEL STRIKE PIERCE WA SI PUBLIC MOVING PUP ON THE BEACH. MATERNAL SEPARATION. DEAD HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 6 28 HARASSMENT SAN JUAN WA SI 

NEWBORN PUP WITH FRESH UMBILICUS REMOVED 

FROM THE BEACH BY PUBLIC. TRANSFERRED TO REHAB 

FACILITY, OUTCOME UNKNOWN. MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2018 6 29 GILLNET FISHERY SAN DIEGO CA SI ANIMAL WITH GOOD BODY WEIGHT AND GILLNET CUTTING DEEP INTO NECK. RESCUE ATTEMPTS FAILED. SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 6 30 HARASSMENT PIERCE WA SI PUP BEING HARASSED BY PEOPLE AND DOGS AT THE BEACH. ANIMAL DIED IN REHAB FACILITY. MATERNAL SEPARATION. DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 6 30 HARASSMENT KITSAP WA SI THIN, BUT ALERT AND CALLING PUP BEING HARASSED BY PUBLIC AND DOGS. MATERNAL SEPARATION. SI HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 7 3 HARASSMENT WHATCOM WA SI 

PUBLIC ATTEMPTING TO SWIM WITH PUP FOR TWO DAYS 

WHILE MOTHER WAS NOT DETECTED. MATERNAL 

SEPARATION. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2018 7 6 HOOK AND LINE FISHERY MONTEREY CA SI 

HOOK AND LINE FISHERY AND HARASSMENT. 

LETHARGIC ANIMAL WITH SEPTICEMIA AND UNDESRIBED 

HOOK AND LINE FISHERY ISSUES SURROUNDED BY 

MEMBERS OF THE PUBLIC ON BEACH. OUTCOME 

UNKNOWN. 

SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 7 6 SHOOTING LINCOLN OR DEAD 

ENTRY WOUND AND TRACT LEADING FROM LEFT 

SHOULDER TO RIGHT SIDE OF HEAD - TRACHEA 

SEVERED; RIGHT SIDE OF FACE AND LOWER JAW 

SEVERELY DAMAGED. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 7 6 HARASSMENT WHATCOM WA SI 

PUP WAS FIRST OBSERVED ON JULY 4TH ON A HEAVILY 

POPULATED BEACH. PUP ENTERED THE WATER YET 

KEPT RETURNING TO THE SAME SPOT. PEOPLE WERE 

SURROUNDING IT AND IT HAD BEEN REPORTED THAT 

THEY HAD PUT IT IN THE WATER MORE THAN ONCE. 

MATERNAL SEPARATION. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 7 7 HARASSMENT WHATCOM WA SI 

ANIMAL ON BEACH BEING HARASSED BY DOGS. NO 

FURTHER DETAILS ON AGE OR CONDITION OF ANIMAL. 

ASSUMING THIS CASE INVOLVED A PUP AND MATERNAL 

SEPARATION, AS AN ADULT ANIMAL WOULD LIKELY FLEE 

INTO THE WATER. 

SI 

HARBOR SEAL CALIFORNIA 2018 7 8 VESSEL STRIKE SONOMA CA DEAD 

OTOSTRONGYLIASIS, TRAUMA. SEAL WAS FOUND ON 

THE BEACH WITH LEFT EYE BLEEDING, DIED IN 

TRANSPORT TO FACILITY. 3 PARALLEL LACERATIONS ON 

RIGHT SIDE OF FACE (BOATSTRIKE). 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 7 17 HARASSMENT WHATCOM WA SI PUBLIC MOVING PUP FROM ROCKS TO WATER REPEATEDLY. MATERNAL SEPARATION. SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 7 20 HARASSMENT SAN JUAN WA SI 

PUP WITH UMBILICUS HAULED OUT OR PLACED ON 

PADDLEBOARD. SENT TO REHAB FACILITY, OUTCOME 

UNKNOWN. 

SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 7 22 HARASSMENT PIERCE WA SI UMBILICUS WAS A DRIED NUB. ALERT, CALLING TRY TO SUCKLE. PEOPLE WERE REPORTED AS MOVING SEAL INTO WATER. HARASSMENT / MATERNAL SEPARARTION. SI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

WASHINGTON 

NORTHERN HARBOR SEAL 2018 7 27 VESSEL STRIKE ISLAND WA DEAD INLAND 

WATERS 

INVESTIGATORS FOUND SUB ADULT FEMALE WITH 

SEVERAL OPEN WOUNDS ON HER DORSAL AND LEFT 

SIDE. THE CURVED SHAPE OF THE WOUNDS INDICATED 

POSSIBLE COLLISION WITH BOAT PROPELLER. THE 

CARCASS HAD BEEN LYING ON ITS VENTRAL SIDE WHEN DEAD 

FIRST SEEN, INTERPRETED TO MEAN THAT THE DORSAL 

SURFACE, WHERE MOST OF THE WOUNDS WERE 

LOCATED MAY NOT HAVE BEEN AVAILABLE TO 

SCAVENGING AFTER BEACHING. 

HARASSMENT AND POSSIBLE DOG ATTACK AS SOUTHERN HARBOR SEAL 2018 7 28 HARASSMENT PIERCE WA SI EVIDENCED BY PUNCTURE WOUNDS. ON AND AROUND A SI 

PUGET SOUND PUBLIC BEACH WITH FERRY DOCK. 

SOUTHERN SEAL PUP ILLEGALLY REMOVED FROM BEACH BY HARBOR SEAL 2018 8 4 HARASSMENT PIERCE WA SI SI 

PUGET SOUND PUBLIC. MATERNAL SEPARATION. 

OREGONHARBOR SEAL WASHINGTON 2018 8 11 SHOOTING CLATSOP OR DEAD PELLET/BULLET HOLES IN SKULL. DEAD 

COAST 

PUBLIC REMOVED PUP FROM BEACH / WATER AND SOUTHERN HARBOR SEAL 2018 8 11 HARASSMENT KITSAP WA SI PLACED IT ON TOP OF PADDLEBOAT. IT DIED 2 DAYS DEAD 

PUGET SOUND LATER. 

WASHINGTON 

NORTHERN HARBOR SEAL 2018 8 12 SHOOTING WHATCOM WA DEAD BULLET HOLE, BULLET NOT RECOVERED. DEAD 

INLAND 

WATERS 

OREGON- HEAD SHATTERED, STRONGLY SUGGESTIVE OF A 

HARBOR SEAL WASHINGTON 2018 8 21 SHOOTING PACIFIC WA DEAD GUNSHOT WOUND. THE SEAL HAD EXCELLENT BODY DEAD 

COAST CONDITION OTHERWISE. 

LINEAR LACERATION ON BOTH EYES. INJURIES ARE SOUTHERN HARBOR SEAL 2018 8 23 GILLNET FISHERY PIERCE WA DEAD CONSISTENT WITH FISHERY ENTANGLEMENT, DEAD 

PUGET SOUND EXCELLENT BODY CONDITION. 

WASHINGTON FRESH DEAD CARCASS RECOVERED AND 

NORTHERN TRANSFERRED TO WDFW ON 8/26. EXAMINATION HARBOR SEAL 2018 8 24 GILLNET FISHERY KING WA DEAD DEAD 

INLAND INDICATES FISHERIES INTERACTION WITH LACERATIONS 

WATERS TO EYES AND FACE. 

BAND OF HEMORRHAGING IN BLUBBER AND DEEP 

MUSCLE AROUND NECK AND ON BACK NEAR RIGHT SOUTHERN HARBOR SEAL 2018 8 25 GILLNET FISHERY THURSTON WA DEAD SHOULDER BLADE. EXCELLENT BODY CONDITION. DEAD 

PUGET SOUND ACTIVE GILLNET FISHING IN AREA. LIKELY 

ENTANGLEMENT. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 8 25 GILLNET FISHERY KING WA DEAD 

DEAD ANIMAL COLLECTED AND TRANSFERRED TO 

WDFW ON 8/26. EXAMINATION INDICATED FISHERIES 

INTERACTION, I.E. LACERATIONS AND IMPRESSIONS OF 

NET. 

DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2018 9 1 VESSEL STRIKE PIERCE WA DEAD 

REPORTED FRESH DEAD ON BEACH. APPEARED TO 

HAVE A INJURY ON R PELVIS/ BACK AREA. SEVERELY 

FRACTURED PELVIS AND LEFT HIND FLIPPER SEVERE 

ENOUGH TO KILL THIS ANIMAL. THE DEFINED LINEAR 

HEMORRHAGE IS CONSISTENT WITH BOAT PROPELLER 

INJURY. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 9 14 HOOK AND LINE FISHERY PACIFIC WA DEAD THE SEAL HAD INGESTED A SMALL FISHING LURE WITH HOOK AND LINE THAT PERFORATED THE INTESTINES WHILE ANIMAL WAS ALIVE (HEMORRHAGE PRESENT). DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 9 18 GILLNET FISHERY KING WA DEAD 

DEAD HARBOR SEAL PUP FOUND ON BEACH 

ENTANGLED IN GILL NET. NET SET FROM DRIFTWOOD 

ON BEACH TO BUOY OFFSHORE IN COVE OFF PUBLIC 

ACCESS BEACH. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 9 29 SHOOTING ISLAND WA DEAD GUNSHOT EVIDENCE FOUND DURING NECROPSY. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2018 9 30 GILLNET FISHERY WHATCOM WA DEAD HEAD CUT OFF. DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2018 12 31 SHOOTING PACIFIC WA DEAD OCCIPITAL AND PART OF PARIETAL SMASHED, CONSISTENT WITH GUNSHOT WOUNDS. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 1 26 SHOOTING SAN JUAN WA SI 

SINGLE GUNSHOT WOUND TO THE HEAD. ENTRANCE 

WOUND LOCATED DORSALLY ON THE CAUDAL RIGHT 

SIDE OF THE HEAD. EXIT WOUND MEASURING 1/4-1/2 

INCH IN DIAMETER LOCATED JUST MEDIAL TO THE LEFT 

AUDITORY CANAL. THIS ADULT FEMALE HARBOR SEAL 

WAS SHOT DURING A SPORT FISHING DERBY IN SAN 

JUAN COUNTY. SUBTANTIAL EVIDENCE OF THE INCIDENT 

WAS SUBMITTED TO ENFORCEMENT OFFICERS 

INCLUDING PHOTOS AND VIDEO OF THE SHOOTING. THE 

SEAL SURVIVED A SINGLE SHOT TO THE HEAD, AND WAS 

BROUGHT TO SJCMMSN BY SJC DEPUTIES. NO SKULL 

FRACTURES WERE NOTED, BUT THE LEFT EYE WAS 

SIGNIFICANTLY DAMAGED. THE SEAL WAS 

TRANSFERRED TO WOLF HOLLOW ON 1/26/19 WHERE IT 

RECEIVED INITIAL TREATMENT INCLUDING PAIN MEDS 

(BANAMINE) AND FLUIDS. A COMPLETE MEDICAL EXAM 

INCLUDING RADIOGRAPHS TOOK PLACE ON MONDAY, JANUARY 28TH AND THE SEAL WAS GIVEN A DOSE OF 

ANTIBIOTICS (CEFOVECIN). THE SEAL WAS 

TRANSFERRED TO PAWS WILDLIFE CENTER ON 2/1/19 

FOR ENUCLEATION PROCEDURE AND POST-OP CARE. 

THE SEAL WAS RELEASED AT TURN POINT PUBLIC 

BEACH ACCESS ON 2/17/19. THIS WAS A FEMALE SEAL 

THAT ABORTED A FETUS WHILE IN REHAB. DESIGNATED 

AS SERIOUS INJURY EVEN THOUGH IT WAS TREATED 

AND RELEASED, DUE TO EYE DAMAGE. 

SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 2 18 GILLNET FISHERY PACIFIC WA DEAD 

THREE FRESH-LOOKING NET-LIKE MARKS ON ANTERIOR 

NECK PRIOR TO SCAVENGING. THE SEAL HAD GOOD 

BODY CONDITION. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 2 19 SHOOTING CLATSOP OR DEAD 

BULLET HOLES ON SKULL (ENTRY) AND IN RIGHT NECK 

REGION (EXIT HOLE); GASH ON HIND FLIPPERS; AREAS 

OF HEMORRHAGE AROUND HEAD AND NECK TO 

SCAPULA; THE SEAL HAD OKAY BODY CONDITION. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 2 22 VESSEL STRIKE SANTA CRUZ CA DEAD 

FOAMING AT THE NOSE WOUND AT RIGHT UPPER 

SHOULDER, LOOKS LIKE POSSIBLE SHARK BITE, BUT 

AFTER NECROPSY IT WAS DETERMINED A PROPELLER 

MARK. APPEARS TO HAVE HEMORRHAGE AROUND 

WOUND. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 3 23 SHOOTING PACIFIC WA DEAD 

ANIMAL WITH EXCELLENT BODY CONDITION HAD 

OBVIOUS PELLET HOLES IN SKULL AND POSSIBLY IN 

ABDOMEN. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 4 3 SHOOTING PACIFIC WA DEAD 

NOTICED OBVIOUS BULLET ENTRANCE AND EXIT HOLES 

THROUGH PARIETALS DURING RECOVERY OF THE 

CARCASS; THE SEAL HAD EXCELLENT BODY CONDITION; 

LARGE AMOUNT OF BLOOD IN THORACIC AND 

ABDOMINAL CAVITIES AND IN THE PERICARDIUM; 

PLACENTA AND INTESTINES WERE TIGHTLY TWISTED. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 4 7 HARASSMENT SANTA BARBARA CA SI 

GUADALUPE DUNES RESERVE OFFICER RECEIVED 

SECONDHAND REPORT OF HARBOR SEAL ON BEACH, 

POSSIBLE ISSUE WITH BACK RIGHT FLIPPER, ROLLING IN 

THE SURF. DUNES OFFICERS BELIEVED IT HAD BEEN 

SEPARATED FROM ITS MOTHER, AND MEMBERS OF THE 

PUBLIC HAD BEEN INTERACTING WITH THE ANIMAL. 

DUNES OFFICERS REMOVED ANIMAL FROM BEACH AND 

BROUGHT IT TO RESTROOMS/PARKING LOT AREA. TMMC 

TEAM COLLECTED ANIMAL FROM OFFICERS. MILDLY 

UNDERWEIGHT. HARASSMENT MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 8 HARASSMENT SANTA CRUZ CA SI 

MATERNAL SEPARATION. MEMBER OF PUBLIC TRIED TO 

PULL ANIMAL OUT OF THE WATER. HARASSMENT 

MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 12 HARASSMENT SAN MATEO CA SI 

MATERNAL SEPARATION AND A RUNNER ON THE BEACH 

TOLD RESPONDERS THAT HE PET IT, AND THEN CHASED 

IT INTO THE WATER TWICE. HARASSMENT MATERNAL 

SEPARATION, MALNUTRITION. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 14 HARASSMENT MARIN CA SI MATERNAL SEPARATION, PEOPLE PETTING AN UNDERWEIGHT PUP. SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 4 16 SHOOTING CLATSOP OR DEAD 

SEAL APPEARED HAD EXCELLENT EXTERNAL BODY 

CONDITION BUT WAS VERY DECOMPOSED; SKULL WAS 

EXPOSED AND THERE WAS AN OBVIOUS BULLET HOLE 

THROUGH IT. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 4 17 DOG ATTACK HUMBOLDT CA SI 

NARRATIVE REPORTED DOG BITES BUT NO DETAILS ON 

CONDITION OF ANIMAL. CLASSIFYING AS SERIOUS 

INJURY AS CONSERVATIVE DEFAULT. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 17 HARASSMENT SONOMA CA SI 

MATERNAL SEPARATION. PEOPLE PICKED UP AN 

UNDERWEIGHT PUP AND MOVED IT TO ANOTHER PART 

OF THE BEACH. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 18 HARASSMENT MONTEREY CA SI 

UNDERWEIGHT PUP WITH UMBILICUS SURROUNDED BY 

PEOPLE AND DOGS. PUP TRANSFERRED TO REHAB 

FACILITY. OUTCOME UNKNOWN. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2019 4 27 HARASSMENT SAN MATEO CA SI 

MATERNAL SEPARATION AND MODERATELY 

UNDERWEIGHT. FISHERMAN PUSHING IT INTO WATER -- 

ASKED REPORTING PARTY TO TELL HIM TO STOP AND 

HE STOPPED TOUCHING THE ANIMAL. MANY PEOPLE 

AND OFF-LEASH DOGS ON BEACH. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 27 HARASSMENT MARIN CA SI 

PEOPLE POKING ANIMAL WITH STICK, MATERNAL 

SEPARATION, PUNCTURE WOUNDS ON RIGHT HIND 

FLIPPER (CAUSE UNKNOWN BUT DOG PRINTS CLEARLY 

SURROUNDING ANIMAL, AND CAUSE MATCHES 

SOMETHING LIKE A CONSPECIFIC OR DOG), AND 

MODERATELY UNDERWEIGHT. 

SI 

HARBOR SEAL CALIFORNIA 2019 4 27 HARASSMENT SONOMA CA SI 

ILLEGAL PICK-UP AND MATERNAL SEPARATION. MEMBER 

OF THE PUBLIC PICKED UP SEAL AND HELD IT IN HER 

LAP EVEN AFTER LAW-ENFORCEMENT AGENCY 

INFORMED HER NOT TO. THE ANIMAL WAS CHECKED BY 

TMMC RESPONDERS EARLIER IN THE DAY, AND NO MOM 

SEAL WAS FOUND AT THE TIME OF CHECKING OR WHEN 

TMMC RESPONDERS ARRIVED TO GET THE ANIMAL 

AFTER THE ILLEGAL PICK-UP. MODERATELY 

UNDERWEIGHT. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 5 11 

UNIDENTIFIED 

HUMAN 

INTERACTION 

SAN JUAN WA DEAD 

FRACTURING IN THE LEFT ORBIT. METALLIC FOREIGN 

BODY (WIRE) WAS FOUND IN THE GASTROINTESTINAL 

TRACT. EXTENSITVE PHOTOGRAPHIC EVIDENCE WAS 

COLLECTED AS WAS THE WIRE ITSELF. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 5 20 SHOOTING PACIFIC WA DEAD 

ANIMAL HAD EXCELLENT BODY CONDITION; SHE WAS 

PREGNANT WITH A FULL-TERM FETUS; PELLET HOLES IN 

SKULL; HEMORRHAGE ALONG BODY; INTESTINES WERE 

TIGHTLY TWISTED; TEAR IN UTERUS; FETUS WAS HEADDOWN AT BIRTH CANAL. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 5 21 VESSEL STRIKE MARIN CA DEAD 

MILDLY UNDERWEIGHT, SEVERE WOUNDS TO CAUDAL 

LEFT SIDE OF THE BODY, BONE EXPOSURE. GROSS 

APPEARANCE AND REGULARITY OF THE WOUNDS 

SUGGESTIVE OF BOAT STRIKE. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 6 11 HARASSMENT MONTEREY CA SI 

PEOPLE TAKING PHOTOS TOO CLOSELY CAUSING 

ANIMAL TO CRAWL AWAY FROM THEM. NO ADULT 

HARBOR SEALS PRESENT DURING ENTIRE 

OBSERVATION TIME. ABSCESS AND MILDLY 

UNDERWEIGHT. MATERNAL SEPARATION. 

SI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 6 29 VEHICLE COLLISION MASON WA DEAD 

ORIGINALLY LIVE ON 29-JUN AND BEING ATTENDED BY 

MOM IN THE EVENINGS (MARINA STAFF SAW 

INTERACTIONS FROM OFFICE WINDOWS). FOUND DEAD 

ON THE BOAT RAMP ON THE MONRING OF 03-JUL-19.. . . 

RUN OVER BY VEHICLE OVERNIGHT ON THE BOAT RAMP. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 7 13 HARASSMENT SAN JUAN WA SI 

PUP WAS SEEN FOR SEVERAL DAYS BY MULTIPLE 

REPORTING PARTIES SWIMMING AROUND, CALLING FOR 

MOM AND APPROACHING BOATS/KAYAKS. HUMAN 

INTERACTION AT HAUL-OUT SITE DUE TO COMMUNITY 

RESIDENTS. SPENT 24+ HOURS HAULED OUT ON 

PADDLE BOARD THAT WAS OFFERED BY RESIDENTS. 

EMACIATED AND DEEMED ABANDONED. PUP WAS 

COLLECTED FOR REHABILITATION DUE TO PHYSICAL 

CONDITION AND PREVIOUS HUMAN INTERACTION. 

MATERNAL SEPARATION. 

SI 

WAS ALIVE AND THRASHING IN DRY OYSTER BEDS, 

BLEEDING ON THE HEAD AT 1115. WAS DEAD BY 1134. 

BLOODY TRAIL LEFT ON BEACH.. L EYE POPPED OUT 

HARBOR SEAL HOOD CANAL 2019 7 21 

UNIDENTIFIED 

HUMAN 

INTERACTION 

MASON WA SI 

W/BLOOD CONGEALED AROUND IT. UPPER LEFT CANINE 

AND LOWER INCISORS MISSING (FOR A LONG TIME). 

UPPER L JAW AROUND EYE FEELS FRACTURED. NOSE 

FEELS FRACTURED TOO, POSSIBLY LOWER JAW 

FRACTURED AS WELL.. . BLUNT FORCE TRAUMA TO L 

DEAD 

SIDE OF HEAD/EYE. POSSIBLE CLUBBING (MOST LIKELY) 

OR BOAT STRIKE (LESS LIKELY BUT STILL POSSIBLE). 

FOUND DEAD ON THE BEACH AT KNOWN HARBOR SEAL 

HAUL OUT BUT ALSO HIGH USE BOATING 

RECREATIONAL AREA- DAY AFTER BUSY WEEKEND, MID 

TIDE LEVEL, FRESH DEAD STILL IN RIGOR, BLOODY 

DISCHARGE AT NOSE. COLLECTED PUT ON ICE AND 

NECROPSIED. INFLAMMED CONJUCTIVAS WITH SAND; 

CURVED LINEAR IMPRESSION CUT AT STERNUM 10 CM 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 7 29 VESSEL STRIKE PIERCE WA DEAD LONG THAT MOSTLY CUTS FUR (DOES NOT BREAK SKIN); BLOOD WAS DISCHARGING OUT OF NOSE AT TIME OF DEAD 

COLLECTION; 9 CM ANTERIOR TO PREVIOUSLY 

DESCRIBED CUT MOSTLY PARALLEL TO CUT ON 

STERNUM THAT IS 7 CM LONG - SUPERFICIAL; UNDER 

STERNAL. . HI FORM COMPLETED. HI JUSTIFACATIONINJURIES NOTED ON EXTERNAL EXAM AND GROSS 

NECROPSY ARE CONSISTENT WITH A PROPELLER 

INJURY. 

SOUTHERN GILLNET FISHERY, HARBOR SEAL 2019 7 WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

PUGET SOUND TRIBAL 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 8 16 

UNIDENTIFIED 

HUMAN 

INTERACTION 

CLATSOP OR SI 

DESPITE OBVIOUS PROPELLER CUTS OR GASHES ON 

BELLY, ANIMAL WAS VERY ACTIVE AND LEFT THE 

BEACH; NOT RESIGHTED. EXTENT OF INJURIES 

UNKNOWN. CONSERVATIVELY ASSIGNED A SERIOUS 

INJURY BECAUSE EXTENT OF INJURIES UNKNOWN. 

SI 

HARBOR SEAL HOOD CANAL 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

SOUTHERN HARBOR SEAL 2019 9 3 VESSEL STRIKE PIERCE WA DEAD PUGET SOUND 

APPEARS TO HAVE BEEN HIT BY A PROPELLER. TWO 

PARALLEL CUTS THAT ARE RUNNING (FIRST CUT 

STARTS ON LEFT LATERAL SIDE 20 CM BELOW ARMPIT; 

NEXT CUT IS 34 CM BELOW THE ARMPIT; DISTANCE 

BETWEEN THE TWO IS 12 CM. THE LENGTH OF THE 

FIRST CUT IS 24 CM; THE LENGTH OF THE SECOND CUT 

IS 24 CM. THE CUTS FORM A BACKWORDS "S". THE FIRST 

CUT HAS CUT THROUGH BLUBBER AND MUSCLE; THE 

INTESTINES ARE CUT IN TWO LOCATIONS. THE SPLEEN DEAD 

HAS BEEN LACERATED. THE SECOND CUT WENT 

THROUGH MUSCLE, BLUBBER, PELVIC BONE AND PAST 

THE VERTEBRAE. IT HAS CUT THE COLON AS WELL. 

ANOTHER 11 CM FORWARD OF THE FIRST CUT IS 

ANOTHER CUT WITH HEMORRHAGE IN THE BLUBBER.. . 

JUSTIFICATION: INJURIES CONSISTENT WITH 

PROPELLER INJURY; TWO LARGE BACKWARDS "S" 

SHAPED LACERATION CUT THROUGH BLUBBER, 

MUSCLE, AND INTO ABDOMINAL CAVITY. 

WASHINGTON 

NORTHERN HARBOR SEAL 2019 9 17 VESSEL STRIKE JEFFERSON WA DEAD LACERATION IS CONSISTENT WITH PROPELLER WOUND. DEAD 

INLAND 

WATERS 

SOUTHERN HARBOR SEAL 2019 9 22 GILLNET FISHERY PIERCE WA DEAD PUGET SOUND 

RIGHT EYE IS BULGING OUT. BLEEDING FROM LEFT EYE. 

INDENTIONS ABOVE AND BELOW EYES, ONE AT TOP OF 

MUZZLE AND ONE AROUND THE SKULL. EYES ALSO 

HAVE AN INDENTION ACROSS. ALL INDENTIONS LINEAR 

ACROSS. BLOOD COMING OUT OF MOUTH. FUR/SKIN 

HANGING FROM MOUTH. SWOLLEN ON RIGHT SIDE OF 

CHEEK AND ON TOP OF HEAD. SKIN NOT QUITE DEAD 

SLOUGHING; NO LONGER IN RIGOR. BODY IS BLOATED. 

HINDFLIPPERS ARE SWOLLEN WITH ANOTHER 

APPARENT LINEAR INDENTION AROUND.. . 

JUSTIFICATION: BASED ON INTERNAL AND EXTERNAL 

EXAM AND LINEAR IMPRESSION WITH EXTENSIVE 

HEMORRHAGE IS CONSISTENT WITH NET 

ENTANGLEMENT. ACTIVE TRIBAL FISHING IN AREA. 

OREGON- ANIMAL HAD EXCELLENT BODY CONDITION; SKULL WAS 

HARBOR SEAL WASHINGTON 2019 9 26 SHOOTING PACIFIC WA DEAD FRACTURED; BULLET FRAGMENTS WERE RECOVERED DEAD 

COAST FROM HEAD. 

ANIMAL HAD EXCELLENT BODY CONDITION; POSTERIOR 

PART OF SKULL BLOWN OUT; HEMORRHAGE IN BACK OF OREGON- MOUTH AND ON SKULL; PELLET HOLE IN LEFT EYE HARBOR SEAL WASHINGTON 2019 9 26 SHOOTING PACIFIC WA DEAD DEAD 

SOCKET WITH ASSOCIATED DAMAGE ON RIGHT; VERY COAST SUBSTANTIAL CLOTTING IN DORSAL AORTA AND ALONG 

BOTH TRACHEA AND ESOPHAGUS. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 9 26 MARINE DEBRIS PIERCE WA DEAD 

ENTANGLEMENT/ ENTRAPMENT IN WINDSOCK/ MARINE 

DERBIS. SEAL STUCK IN DISTAL END OF WIND SOCK. 

HEAD REMAINS COMING OUT SOCK. THIS OCCURRED IN 

~20 YEARS AGO WHEN WIND SOCK WAS LOST OF 

NEARBY DOC MCNIEL ISLAND DOCK. APPEAR THAT THE 

SEAL SWAM INOT AND GOT STUCK AND DROWNED. 

DEAD 

HARBOR SEAL HOOD CANAL 2019 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 10 18 GILLNET FISHERY ISLAND WA DEAD 

ONE OF TWO SEALS FOUND DEAD IN GILLNET WASHED 

ASHORE. THE FEMALE SEAL WAS FOUND ALONG WITH A 

MALE SEAL FULLY ENTANGLED IN A FISHING NET (GILL 

NET). THE NET HAD 3 SMALL BUOYS ATTACHED, 2 

UNMARKED AND ONE STAMPED WITH "MADE IN KOREA". 

NO ADDITIONAL MARKS OR ID SEEN ON THE NET ITSELF. 

BOTH SEALS WERE FULLY WRAPPED IN THE NET WITH 

NET TO SPARE. THE NET ALSO SEVERELY LACERATED 

THE FEMALE'S FACE. IT WAS APPARENT THAT THE NET 

HAD WORKED ITS WAY AROUND THE SEAL'S NECK IN A 

MANNER WHICH COULD (AND DID) CAUSE AIRWAY 

MALFUNCTIONS. THE NET WAS ENTANGLED IN A MASS 

OF BULL KELP WHICH HAD WASHED UP WITH THE 

CARCASS. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 10 18 GILLNET FISHERY ISLAND WA DEAD 

ONE OF TWO SEALS FOUND DEAD IN GILLNET WASHED 

ASHORE. THE FEMALE SEAL WAS FOUND ALONG WITH A 

MALE SEAL FULLY ENTANGLED IN A FISHING NET (GILL 

NET). THE NET HAD 3 SMALL BUOYS ATTACHED, 2 

UNMARKED AND ONE STAMPED WITH "MADE IN KOREA". 

NO ADDITIONAL MARKS OR ID SEEN ON THE NET ITSELF. 

BOTH SEALS WERE FULLY WRAPPED IN THE NET WITH 

NET TO SPARE. THE NET ALSO SEVERELY LACERATED 

THE FEMALE'S FACE. IT WAS APPARENT THAT THE NET 

HAD WORKED ITS WAY AROUND THE SEAL'S NECK IN A 

MANNER WHICH COULD (AND DID) CAUSE AIRWAY 

MALFUNCTIONS. THE NET WAS ENTANGLED IN A MASS 

OF BULL KELP WHICH HAD WASHED UP WITH THE 

CARCASS. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2019 10 19 SHOOTING PACIFIC WA DEAD 

ANIMAL HAD EXCELLENT BODY CONDITION; OBVIOUS 

TRAUMA TO HEAD AND BULLET HOLES ON BODY; 

ANIMAL WAS NOT AVAILABLE FOR NECROPSY. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 10 22 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

HARBOR SEAL HOOD CANAL 2019 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 11 5 

UNIDENTIFIED 

FISHERY 

INTERACTION 

KING WA DEAD 

FRESH DEAD PUP. CARCASS INTACT EXCEPT FOR 

DAMAGED LEFT EYE, TEETH MISSING FROM UPPER LEFT 

SIDE BLOODY JAW, SWOLLEN LEFT CHEEK AREA, 

PROTRUDING LEFT EAR TISSUE. TRANSFERRED TO DFW 

FOR NECROPSY. EXAMINER REPORTS EXTENSIVE 

BLUNT FORCE TRAUMA INCLUDING PUNCTURE INSIDE 

MOUTH, BROKEN SPINE, RIBS AND STERNUM. POSSIBLE 

GAFFING THROUGH MOUTH AND BEATING OR BEING 

DRAWN THROUGH NET DRUM OF FISHING BOAT. NO 

SIGN OF ENTANGLEMENT. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 11 8 GILLNET FISHERY, TRIBAL GRAYS HARBOR WA DEAD REPORTED ENTANGLED IN A TRIBAL QUINAULT GILLNET. DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 11 12 HOOK AND LINE FISHERY PIERCE WA DEAD 

RECOVERED FISH HOOK FROM STOMACH. PERFORATED 

STOMACH AND CAUSED THE PERITONITIS. LINE ALSO 

CAUSE INTESTINAL INTUSSUSCEPTION. ~5 LITER OF 

REDDISH FLUID IN ABDOMEN. OMMENTUM RED W 

FIBROUS PLAQUES. BASE OF PYLORUS FISHHOOK 

PERFORATED. 

DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2019 12 13 SHOOTING THURSTON WA DEAD 

ENTRY WOUND RIGHT SIDE OF NECK, TRACKING 

ACROSS THROAT AND PROJECTILE FOUND IN SWOLLEN 

AREA ON L SIDE OF NECK. ALTHOUGH PROJECTILE DID 

NOT PENETRATE THROUGH THE SKULL, IT DID BLOW A 

HOLE IN THE BASE OF THE SKULL AS IT WENT PAST. 

BONE FRAGMENTS BLOWN INTO THE BRAIN TISSUE AND 

TISSUE HEMORRHAGED. LARGE AREAS OF HEMATOMA 

NEAR ENTRY WOUND AND AROUND WHERE PROJECTILE 

WAS FOUND. 

DEAD 

HARBOR SEAL CALIFORNIA 2019 12 26 HOOK AND LINE FISHERY LOS ANGELES CA DEAD FISH HOOK IN STOMACH, SUSPECT BLUNT TRAUMA. DEAD HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 12 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 12 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2019 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2019 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL CALIFORNIA 2020 1 26 HARASSMENT SAN DIEGO CA SI 

NEONATE PUP SEEN WITHOUT MOTHER ON BEACH 

SINCE 1/26/2020 OR 1/27/2020. DEHYDRATED, SAND IN 

MOUTH, DIARRHEA. TEMPERATURE OF 99.7F REPORTED 

TO SEAWORLD RESCUE THAT PEOPLE IGNORED THE 

BEACH CLOSURE AND BROUGHT A DOG DOWN TO THE 

SEAWALL. MOM WAS FLUSHED INTO THE WATER. TWO 

OTHER ANIMALS WERE DISTURBED DURING THE 

RESCUE. SERIOUS INJURY DUE TO MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 1 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

PRONOUNCED TRAUMA ON CROWN OF HEAD, NO 

HARBOR SEAL CALIFORNIA 2020 2 15 OIL / TAR SANTA BARBARA CA DEAD PUNCTURE WOUND OR ANY OTHER INJURY EXCEPT THAT TONGUE MISSING, AND HARD PALATE AND NASAL BONES CRUSHED. EXTENSIVE OIL/TAR OVER 80% OF 

COAT, FRESH DEAD. OIL/MUTILATION. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 28 SHOOTING LINCOLN OR DEAD 

PREGNANT ADULT FEMALE, FRESH DEAD CONDITION. 

BULLET WOUND TO RIGHT THORAX CAUSED MAJOR 

INTERNAL TRAUMA TO 6TH RIB, RIGHT LUNG AND LIVER, 

AND CAUSED EXTENSIVE INTERNAL BLEEDING. 

DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 2 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL CALIFORNIA 2020 3 7 HARASSMENT MONTEREY CA SI 

EMACIATED, LANUGO COAT PRESENT. HARASSED -

MEMBER OF THE PUBLIC TAKING SELFIES WITH THE 

ANIMAL. HARASSED. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 3 14 HARASSMENT SONOMA CA SI 

FULL LANUGO COAT, FRESH UMBILICUS, MODERATELY 

UNDERWEIGHT. HARASSED - MEMBER OF PUBLIC 

PICKED UP ANIMAL AND THEN RETURNED IT TO BEACH, 

SAME PERSON SEEN CARRYING IT AGAIN AFTER THAT. 

ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 3 25 HARASSMENT MENDOCINO CA SI 

EMACIATED, UMBILICUS OPEN, FULL LANUGO COAT 

EXCEPT FOR HIND FLIPPERS AND MUZZLE, HARASSED -

CHILDREN SCARED IT BACK INTO WATER AND ANOTHER 

MEMBER OF THE PUBLIC WAS CARRYING THE ANIMAL 

AROUND. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 3 27 HARASSMENT MARIN CA SI 

EMACIATED, RIGHT FRONT FLIPPER SWOLLEN WITH 

TWO PUNCTURE WOUNDS, DISCHARGE FROM 

UMBILICUS. HARASSED - ANIMAL PICKED UP BY HUMAN 

AND PLACED UNDER BLANKET, PERSON SITTING WITH 

ANIMAL ON DOCK. HARRASSED. ASSUMED MATERNAL 

SEPARATION. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2020 3 29 HARASSMENT SAN FRANCISCO CA SI 

MODERATELY UNDERWEIGHT, FRESH UMBILICUS STUMP 

PRESENT, 4 PUNCTURE WOUNDS ON HIND FLIPPERS. 

HARASSED - PUBLIC ATTEMPTING TO FEED SARDINES 

TO ANIMAL. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 3 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 3 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL CALIFORNIA 2020 4 6 DOG ATTACK DEL NORTE CA SI LETHARGIC ANIMAL WITH EVIDENCE OF DOG BITES. SI 

HARBOR SEAL CALIFORNIA 2020 4 8 HARASSMENT SAN FRANCISCO CA SI 

TRACKING WITH EYES ONLY, MODERATELY 

UNDERWEIGHT, UMBILICUS PRESENT, RIGHT EYELID 

LACERATION, 2 TICKS PRESENT ON HEAD. HARASSED -

MEMBER OF PUBLIC TRIED PUSH ANIMAL BACK INTO 

WATER WITH NET. COVID-19 IMPACT: PERMISSION 

NEEDED BEFORE ACCESSING PARKING LOT AND 

CLOSED GGNRA BEACHES. ASSUMED MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 4 20 DOG ATTACK SAN LUIS OBISPO CA DEAD HEAD TRAUMA CONSISTENT WITH DOG BITES. DEAD 

HARBOR SEAL CALIFORNIA 2020 5 3 HARASSMENT SANTA CRUZ CA SI 

LETHARGIC, EMACIATED, FULL HAIR COAT. HARASSED -

MEMBER OF THE PUBLIC TRIED TO PULL ANIMAL BACK 

INTO THE WATER. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 5 6 HARASSMENT SONOMA CA SI 

MODERATELY UNDERWEIGHT, FULL HAIRCOAT. 

HARASSED - MEMBER OF PUBLIC PICKED UP ANIMAL 

AND PUT IT IN A CAR, KIDS ON BEACH PASSING THE 

ANIMAL AROUND. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 5 11 VESSEL STRIKE ORANGE CA SI 

NEWPORT BEACH HARBOR PATROL REPORTED ANIMAL 

WAS STRUCK BY BOAT AND NOW FLOATING IN THE 

WATER. RESCUE TEAM WAS TAKEN BY HARBOR PATROL 

BOAT AND ANIMAL WAS EASILY SCOOPED OUT OF THE 

WATER. ANIMAL HAD MULTIPLE DEEP LACERATIONS 

INCLUDING ONE ON MUZZLE THAT WENT INTO NASAL 

SINUS. ANIMAL DESCRIBED AS ALIVE, BUT FINAL 

OUTCOME UNKNOWN. SERIOUSLY INJURED BASED ON 

DESCRIPTION AND ABILITY OF REPORTING PARTY TO 

PICK UP ANIMAL. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2020 5 18 HARASSMENT GRAYS HARBOR WA SI 

ALERT, CALLING. MARKED WITH GREEN MARK AND LEFT 

SEAL PUP LIVE AT JETTY. DENNIS MARKED AND POSTED 

SIGNS. REPORTED OF PEOPLE BOTHERING, PETTING 

AND POURING WATER ON PUP. CHECK ON NEXT DAY 

AND THE PUP WAS GONE. ASSUMED MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL CALIFORNIA 2020 5 19 HARASSMENT SANTA CRUZ CA SI 

TRACKING WITH BODY, UMBILICUS OPEN, EMACIATED. 

HARASSED - BEACHGOERS PICKED UP ANIMAL AND 

MOVED IT HARASSED. ASSUMED MATERNAL 

SEPARATION. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 5 20 HARASSMENT WHATCOM WA SI LANUGO PUBLIC PICKED UP AND MOVED THE PUP HARASSMENT. ASSUMED MATERNAL SEPARATION. SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2020 5 22 HARASSMENT GRAYS HARBOR WA SI 

LIVE ON BEACH 5/22 WITH ANOTHER SEAL PUP. WDFW 

VOLUNTEERS POSTED SIGNS AND MONITOR 

PERIODICALLY. SEAL WAS MARKED WITH GREEN SPRAY 

PAINT. REPORTS OF PEOPLE BOTHERING SEAL AND 

DOGS OFF LEASH. HAD TO CALL OSPD TO GET PEOPLE 

TO BACK WAY AND LEAVE SEAL PUPS ALONE LATE 

EVENING OF 5/22. VOLUNTEERS CHECKED ON AM 5/23. 

THIS SEAL WAS STILL ON BEACH. OTHER SEAL WAS 

GONE. POSTED SIGNS AND MOVED TAPE. WHEN CHECK 

ON ~12PM SEAL PUP WAS DEAD. 

DEAD 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2020 5 23 HARASSMENT GRAYS HARBOR WA SI 

THERE WERE AT LEAST THREE DIFFERENT SEALS OVER 

COURSE OF 5 DAY PERIOND. SEAL WERE MARKED WITH 

PAINT AND MONITORED. THIS ONE WAS THE FOR LESS 

THEN 24 HOURS FOUND DEAD NEXT AM. WDFW 

VOLUNTEER MARKED AND POSTED SIGNS. PICKED UP 

DEAD AND PUT ON ICE FOR WDFW TO NECROPSY. 

LIMITED RESPONSE AND NECROPSY DUE TO COVID 19. 

MARKEDLY THIN; FEW PUNCTURE WOUNDS ON HIND 

FLIPPERS. . HI COMPLETED; SEAL WAS ON VERY 

POPULAR BEACH; LOTS OF PEOPLE DOGS. REPORTS OF 

PEOPLE TOUCHING. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 5 26 HARASSMENT PACIFIC WA SI 

SLIGHTLY THIN BUT ALERT AND CALLING; RETURN TO 

WATER AFTER PUT BUT AT LOCATION FIRST REPORT OF 

PUP WAS WHEN THSP PULLED OVER A TRUCK WITH A 

HARBOR SEAL PUP IN THE BACK. THSP CONTACTED 

WDFW AND NOAA ENFORCEMENT. OFFICER 

RESPONDED AND SINCE THEY WERE ABLE TO TO TELL 

WHERE THE SEAL PUP WAS FOUND RETURN PUP TO 

LOCATION AND MARKED WITH GREEN PUP WENT 

IMMEDIATELY IN THE WATER AND LEFT. NO FURTHER 

REPORTS OF PUP. LIMITED RESPONSE DUE TO COVID19. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 6 22 HARASSMENT THURSTON WA SI 

ACTIVE AND ALERT, CALLING. WHITE FLESHY UMBILICAL 

(APPROX 2.5 CM), WET, SMALL AMOUNT OF PALE RED 

DISCARGE. GOOD BODY CONDITION, MODERATELY 

DEHYDRATED. NO WOUNDS SEEN, HEART AND LUNGS CLEAR, ABDOMINAL PALPATION NORMAL. TEETH JUST 

STARTING TO ERUPT. ANIMAL FIRST REPORTED 

SWIMMING IN MARINA ON AFTERNOON OF 22 JUNE, NO 

MOM IN SIGHT. RECOMMENDED TO LEAVE IT TO MAKE 

SURE MOM DID NOT RETURN IN THE EVENING. AT 2230 

ON 22 JUNE, MARINA MANAGER CALLED TO SAY 

MEMBER OF PUBLIC HAD REMOVED PUP FROM WATER 

AND PUT IT ON THE SWIM STEP OF THEIR BOAT. ADULT 

WAS SEEN IN THE AREA, SO ADVISED TO LEAVE PUP 

WHERE IT WAS AND VACATE THE IMMEDIATE AREA TO 

SEE IF MOM WOULD COME BACK FOR IT. PUP WAS NOT 

ON SWIM STEP IN THE MORNING. PUP REPORTED AGAIN 

ON EVENING OF 23 JUNE, STILL SWIMMING BUT 

APPROACHING PEOPLE AT THE EDGE OF THE DOCK AND 

TRYING TO SUCKLE BOATS. SPOTTED AGAIN MORNING 

OF 24 JUNE, SWIMMING IN A CONGESTED AREA. NO 

ADULT HAD BEEN SEEN SINCE 22 JUNE. PUP HAULED 

OUT ON SMALL FINGER DOCK AT 1830 ON 24 JUNE. JLH 

COLLECTED AT 1945 AND TRANSFERRED TO WORLD 

VETS FOR STABILIZATION AND TRANSFER TO REHAB 

CENTER FOLLOWING DAY. AREA OF HIGH HUMAN 

ACTIVITY--LIKELY IMPEDED MOM FROM RETURNING FOR 

PUP. 

SI 

HARBOR SEAL 

OREGON - 

WASHINGTON 

COAST 

2020 6 23 SHOOTING CLATSOP OR DEAD 

PUP WAS THIN; THERE WAS A VERY CLEAR SMALL 

BULLET HOLE SOMEWHAT LEFT OF MID-ABDOMEN WITH 

TREMENDOUS TRAUMA AND TISSUE DAMAGE GOING 

ANTERIOR TO POSTERIOR; HEAVY 

HEMORRHAGE/TRAUMA AROUND NECK AND AT 

SHOULDERS; ANTERIOR HEAD FROM FRONTAL 

APPEARED TO BE "BLOWN OFF"; BLOOD IN BOTH 

THORACIC AND ABDOMINAL CAVITIES. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL CALIFORNIA 2020 6 29 HARASSMENT SONOMA CA SI 

TRACING WITH BODY, MODERATELY UNDERWEIGHT, 2 

CM PUSTULE ON WEBBING OF RIGHT HIND FLIPPER, 

SMALL ORAL LACERATION. HARASSED - MEMBER OF 

THE PUBLIC PICKED UP THE ANIMAL AND PUT IT IN THE 

WATER SEVERAL TIMES. HARASSED TRACING WITH 

BODY, MODERATELY UNDERWEIGHT, 2 CM PUSTULE ON 

WEBBING OF RIGHT HIND FLIPPER, SMALL ORAL 

LACERATION. HARASSED - MEMBER OF THE PUBLIC 

PICKED UP THE ANIMAL AND PUT IT IN THE WATER 

SEVERAL TIMES. AGE CLASS NOT DESCRIBED, BUT THE 

FACT THAT A MEMBER OF THE PUBLIC WAS ABLE TO 

PICK UP ANIMAL IMPLIES IT WAS A PUP. ASSUMED 

MATERNAL SEPARATION. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 6 POT FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 7 14 DOG ATTACK SAN JUAN WA SI 

ON JULY 15TH, 2020, SJCMMSN RECEIVED A CALL ABOUT 

A PUP ON A PUBLIC BEACH NEAR THE CAPE SAN JUAN 

MARINA. RP SAID THAT HER DOGS MAY HAVE BIT THE 

PUP. SJCMMSN RESPONDED IMMEDIATELY TO FIND THE 

PUP IN THE WATER BUT LATER CAME TO SHORE. UPON 

EXAMINATION, AN INFECTED INJURY WAS CONFIRMED 

ON THE PUP'S HEAD AND NECK THAT ALIGNED WITH A 

DOG BITE. RESPONDRS TRANSPORTED PUP TO WOLF 

HOLLOW REHAB CENTER. FINAL OUTCOME UNKNOWN. 

SI 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 7 19 HARASSMENT JEFFERSON WA SI 

PUP WAS ORIGINALLY FOUND INSIDE A PLASTIC TUB 

FILLED HALFWAY WITH WATER, PLACED NEAR AN 

ACCESS POINT TO THE BEACH. VOLUNTEER GOT THE 

PUP OUT OF THE TUB ONTO THE BEACH AND WAS 

KEEPING PEOPLE AWAY UNTIL WE ARRIVED. THE SEAL 

HAD A GOOPY EYE, SLIGHTLY SWOLLEN SIDE OF HEAD 

(TEMPLE REGION), AND WAS SKINNY. DUE TO POOR 

CONDITION, AND NO KNOWLEDGE OF WHERE THE PUP 

CAME FROM - PUP WAS TRANSPORTED TO CENTER 

VALLEY ANIMAL HOSPITAL EUTHANIZED. 

DEAD 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 7 29 DOG ATTACK MASON WA SI 

THIN, DEHYDRATED. MULTIPLE PUNCTURE WOUNDS 

AROUND FACE AND BOTH SIDES OF NECK. NOT USING 

FRONT RIGHT FLIPPER, POSSIBLE DISLOCATION. ALERT 

AND MODERATELY ACTIVE. SPENDING LOTS OF TIME ON 

BEACH NEAR PARKING LOT. OCCASIONALLY SWIMMING. 

NOT CALLING. INJURIES NOT PRESENT IN PHOTOS FROM 

29 AUG. INJURIES CONSISTENT WITH DOG ATTACK--

INJURIES FIRST SEEN ON 30 JULY. MAY NOT HAVE 

CAUSED STRANDING EVENT BUT CONTRIBUTED TO ITS 

POOR CONDITION AND SUBSEQUENT EUTHANASIA. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 7 29 HARASSMENT PIERCE WA SI 

ILLEGAL PICKUP AND HARASSMENT. SEAL WAS 

INITIALLY REPORTED NEAR THE BARGE THAT ON HIGH 

TIDE SEALS AND SEA LION USE TO HAUL OUT. IT IS ON A 

LAND BRIDGE SO THAT ON LOW TIDE PEOPLE CAN WALK 

OUT TO. REPORTED GONE NEXT DAY. PM WAS 

REPORTED JUST OFF TRAIL ACCESS. REPORTS OF 

PEOPLE BOTHER AND POURING WATER ON. DISCUSS 

GIVING SPACE AND TIME~3PM. 5PM RECEIVED A CALL 

FROM DUPONT POLICE THAT SEAL HAD BEEN CARRIED 

UP THE 2 MILE TRAIL BROUGHT TO THE FIRE 

DEPARTMENT AND THAT THEY HAD RETURNED IT TO 

THE BEACH. ASSUMED MATERNAL SEPARATION. 

SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 8 27 VESSEL STRIKE MASON WA DEAD 

REPORTED DEAD ON BEACH. WITH MULTIPLE OPEN 

WOUNDS. RP COLLECTED AND WDFW PICKED UP FROM 

NECROPSY. RP STATED THAT THOUGHT IT WAS HIT THE 

DAY BEFORE. THERE HAD BEEN PUP HANGING AROUND 

THEIR FLOATING DOCK. BOAT CAME IN REAL FAST THE 

DAY BEFORE AND PUP WAS NOT SEEN SINCE. THEN IN 

AM FOUND PUP DEAD ON BEACH. 6 PARALLEL 

LACERATIONS ON LEFT SIDE OF BODY. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 8 27 HOOK AND LINE FISHERY KING WA SI 

WEANED HARBOR SEAL PUP HAULED OUT ON 8/27, 

REPORTED ON BEACH AT 12N. BYSTANDER NOTICED 

FISHING LINE FROM MOUTH AT 7:40P; OTHERS' PHOTOS 

SHOWED HOOK INSIDE THE MOUTH. CASEY MCLEAN 

AND DR GREG FRANKFURTER/SR3 ARRIVED AND 

CAPTURED PUP WITH ASSISTANCE FROM SEAL SITTERS. 

THEY REMOVED THE HOOK, TREATED THE WOUND, 

ADMINISTERED ANTIBIOTICS AND APPLIED TAG. SEAL 

WAS LEFT ON BEACH AND RETURNED TO WATER 

SOMETIME AFTER 9P. PUP CONTINUED TO HAUL OUT 

DAILY WITHIN 15-20 MINUTES OF ANOTHER PUP 

SSW083020. REPEATED VIOLATIONS OF PERIMETER 

WERE SEEN, AND CALLER REPORTED PHOTOGRAPHER 

AND WEDDING PARTY ON BEACH TOUCHING AND 

POSING WITH ONE OF THE PUPS ON 8/29. BECAUSE OF 

HARASSMENT AND PROXIMITY TO FISHING PIERS, BOAT 

RAMP AND HEAVY BOAT AND PEDESTRIAN TRAFFIC, 

BOTH PUPS WERE RELOCATED ON 8/30. WITH 

ASSISTANCE FROM SR3, WORLD VETS AND WDFW MMI, 

PUPS WERE CAPTURED AT 2P, EXAMINED, 

TRANSPORTED BY BOAT AND RELOCATED AT HYDE 

POINT, MCNEIL ISLAND 47.2004290, -122.6421199 

NSI 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 8 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 5 HOOK AND LINE FISHERY SAN JUAN WA SI 

SLIGHTLY EMACIATED PUP IS BRIGHT, ALERT, AND 

REACTIVE. NOT VOCAL. SOME TEETH ERUPTED. 

UMBILICUS NOT PRESENT. HARBOR SEAL PUP HAD A 

FISHING HOOK THROUGH THE 1ST AND 2ND DIGIT THAT 

WAS TRAILING APPROX. 12FT OF LINE AND A GREEN 

FLASHER. THE RP INTERACTED WITH THE SEAL AND CUT 

THE LINE OFF THE SEAL PRIOR TO CALLING SJCMMSN. 

SJCMMSN WAS INFORMED THAT A MEMBER OF THE RP 

PARTY APPROACHED THE SEAL AND CUT PART OF THE 

FISHING LINE SO THAT A MAJORITY OF THE ENTANGLED 

LINE WAS NOW REMOVED FROM THE SEAL, THE HOOK 

AND 12 INCHES OF LINES WERE STILL ATTACHED. 

SJCMMSN CONDUCTED A BRIEF HEALTH EXAMINATION 

AND THE PUP WAS BROUGHT TO WOLF HOLLOWY 

REHABILITATION CENTER. FINAL OUTCOME UNKNOWN. 

SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 9 7 VESSEL STRIKE PIERCE WA SI SEAL WITH S-SHAPED FACIAL LACERATION CUTTING INTO BONE. ANIMAL EUTHANIZED. DEAD HARBOR SEAL CALIFORNIA 2020 9 10 HOOK AND LINE FISHERY SANTA CRUZ CA SI 

ALERT BUT NOT ACTIVE, FISHHOOK WITH 

MONOFILAMENT LINE EMBEDDED IN LEFT FRONT FLIPPER AND ATTACHED TO SECOND FISH HOOK 

EMBEDDED IN TONGUE. 

SI 

HARBOR SEAL SOUTHERN PUGET SOUND 2020 9 10 VESSEL STRIKE PIERCE WA DEAD CARCASS FOUND WITH PROPELLER LACERATIONS ACROSS HIND FLIPPERS. DEAD 

HARBOR SEAL 

OREGONWASHINGTON 

COAST 

2020 9 26 HOOK AND LINE FISHERY CLATSOP OR DEAD 

CARCASS HAD EXCELLENT BODY CONDITION; SHE HAD 

INGESTED TWO LARGE FISH HOOKS (CONNECTED BY 

LINE); ONE HOOK WAS LODGED IN THE CORNER OF THE 

MOUTH AND THE OTHER WAS LODGED IN THE 

ESOPHAGUS; THERE WAS TREMENDOUS DAMAGE 

CAUSED BY THE HOOKS, INCLUDING A VERY LARGE 

HOLE IN THE ESOPHAGUS; THERE WAS ALSO A NUMBER 

OF AREAS WITH HEMORRHAGE, INCLUDING BLOOD IN 

THE TRACHEA AND ABDOMEN. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 9 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 3 GILLNET FISHERY WHATCOM WA DEAD CARCASS ENTANGLED IN FISHING NETTING. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 3 GILLNET FISHERY WHATCOM WA DEAD CARCASS ENTANGLED IN FISHING NETTING. DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 8 GILLNET FISHERY PACIFIC WA DEAD 

ANIMAL HAD EXCELLENT BODY CONDITION; THERE 

WERE NET/LINE MARKS ON THE NECK AND 

TREMENDOUS HEMORRHAGE AND TRAUMA FROM HEAD 

AND NECK, ACROSS THORAX AND ABDOMEN AND ON 

INTERNAL ORGANS; THERE WAS NOTICEABLE CREPITUS 

ON LEFT NECK AND NEAR SCAPULAE ASSOCIATED WITH 

TREMENDOUS TRAUMA. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 14 SHOOTING PACIFIC WA DEAD 

ANIMAL HAD VERY GOOD BODY CONDITION; 

TREMENDOUS TRAUMA AND HEMORRHAGE AROUND 

HEAD AND NECK, SHOULDERS, MID-ABDOMEN, AND 

PELVIS; SMALL BULLET HOLE ON LEFT SIDE BETWEEN 

THORAX AND ABDOMEN WITH ADDITIONAL INTERNAL 

DAMAGE; ALL INTERNAL ORGANS BLOODY WITH AREAS 

OF HEMORRHAGE; MODERATE LUNGWORM LOAD 

(RIGHT > LEFT BRONCHUS); POSSIBLY HAD BEEN IN A 

NET BASED ON SOME OF THE TRAUMA PATTERNS. 

DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 10 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL HOOD CANAL 2020 11 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL HOOD CANAL 2020 11 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 11 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 11 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 11 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HARBOR SEAL 

WASHINGTON 

NORTHERN 

INLAND 

WATERS 

2020 GILLNET FISHERY, TRIBAL WA DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

HUMPBACK 

WHALE CA-OR-WA 2016 1 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MARIN CA SI (PRORATE) 

WHALE SWIMMING SLOWLY, RAISING PECTORAL FINS 

OUT OF WATER, 41 NMI SW OF PT. REYES. ONE YELLOW 

FLOAT/BUOY ATTACHED TO ROPE BEING PULLED BY 

WHALE, POSITION OF FLOAT CLOSE TO THE TAIL FLUKE, 

REPORTING PARTY BELIEVE CAUGHT ON/IN PECTORAL 

OR MOUTH. NO MARKINGS ON BUOY OR FOULING. 

REPORTED BY NOAA VESSEL REUBEN LASKER. AMOUNT 

AND CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

SINGLE LINE / ROPE RUNNING BACK FROM 

ROSTRUM/MOUTH AREA, RUNNING BACK ON LEFT SIDE 

UNIDENTIFIED OF BLOWHOLES AND DOWN LEFT SIDE OF BODY. HUMPBACK SI SI CA-OR-WA 2016 2 4 FISHERY LOS ANGELES CA SWIMMING AND DIVING BUT NOT SEEN FLUKING. NEAR 

WHALE (PRORATE) (PRORATE) INTERACTION TRUMP GOLF COURSE OFF PALO VERDES, PHOTOS 

AVAILABLE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

HUMPBACK CA SPOT PRAWN SI CA-OR-WA 2016 2 21 SAN DIEGO CA WHALE TRAP FISHERY (PRORATE) 

REPORTED BY USCG 2.5 MI WEST OF SCRIPPS PIER. 2 

TO 3 WRAPS OF TWISTED 5/16 INCH NYLON LINE 

AROUND CAUDAL PEDUNCLE (= MULTIPLE WRAPS). 

WHALE SOMEWHAT ANCHORED, WAS FLUKING BEFORE, 

DURING, AND AFTER INTERVENTION. QUICKLY SWAM 

NORTH AFTER RELEASED FROM GEAR (=RESCUE). TEAM 

OBSERVED THE ANIMAL FORMING A C SHAPE WITH ITS 

BODY, SUGGESTING SOMETHING WAS GOING ON WITH 

THE HEAD. FISHERY AND GEAR IDENTIFIED BY TAG 

NUMBER AND INTERVIEW WITH FISHERMAN. WHALE SI 

DISENTANGLEMENT TEAM WAS ABLE TO CUT (PRORATE) 

GROUNDING LINE AND FREE ANIMAL, WHICH 

IMMEDIATELY PICKED UP SPEED AND SWAM OFF. GEAR 

HAD BEEN SET NEAR LA JOLLA ON 2/20/2016, THE DAY 

PRIOR TO THE ENTANGLEMENT, WITH 25 TRAPS OF 8-10 

LBS EACH AND 1/2 MILE OF LINE. NO CONFIRMATION 

THAT ALL GEAR HAS BEEN REMOVED. FULL 

CONFIGURATION OF GEAR UNKNOWN BEFORE AND 

AFTER DISENTANGLEMENT EFFORT. FINAL OUTCOME 

UNKNOWN. 

WHALE WAS SIGHTED ON 3/4 BY COAST GUARD, THEN 

3/5/2016 BY DIVER 9.3 NM WEST OF POINT LOMA. LINEAR 

SCARS ON LEADING EDGE OF FLUKES AND CAUDAL 

PEDUNCLE INDICATE THIS WHALE WAS ENTANGLED IN HUMPBACK CA-OR-WA 2016 3 4 VESSEL STRIKE SAN DIEGO CA DEAD THE PAST, BUT WAS NOT LIKELY THE CAUSE OF DEATH. DEAD 

WHALE FRACTURED INTERVERTEBRAL DISK AND SCAPULA WITH 

ASSOCIATED HEMORRHAGE IN BLUBBER AND MUSCLE 

INDICATES TRAUMA, POSSIBLY ATTRIBUTED TO A 

VESSEL STRIKE. 

GEAR CONFIRMED FROM BUOY NUMBER. GEAR WAS 

SET SAME DAY AND PHOTOS / VIDEO EXIST OF WHALE 

SELF-RELEASING FROM GEAR. FISHERMAN CONTACTED, 

DESCRIBED GEAR AS 12 POTS ON A STRING OF 5/16 

INCH LINE, WITH 100 FT OF LINE BETWEEN POTS. HUMPBACK CA SPOT PRAWN CA-OR-WA 2016 3 4 ORANGE CA SI SIGHTING INCLUDED 1 BUOY AND UNKNOWN AMOUNT NSI 

WHALE TRAP FISHERY OF LINE ATTACHED TO FLUKE. VERY ACTIVE ANIMAL, 

DESCRIBED AS AGITATED, FLUKE SLAPPING AND 

BREACHING. WHALE SUCCESSFULLY SHED GEAR. 2.5 

MILES OFF DANA POINT. ORIGINAL CONFIGURATION AND 

AMOUNT OF GEAR UNKNOWN. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 4 11 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI 

WHALE APPEARS TO BE ANCHORED IN 10 TOTAL BUOYS 

AND BLUE STEEL LINE; 3 ORANGE BULLET BUOYS, 1 

LARGE WHITE BULLET BUOY, 3 RED/ORANGE BULLET 

BUOYS, 1 DARK RED BULLET BUOY, 1 DOUBLE ORANGE 

BULLET BUOY AND 1 PURPLE CA DUNGENESS CRAB 

TAG. GEAR ORIGINATED FROM MOSS LANDING. 

SECOND BUOY NUMBER WAS ALSO NOTED FROM A 

PHOTO. A SEARCH EFFORT FOR THE WHALE WAS 

INITIATED, BUT THE WHALE WAS NOT RELOCATED. 

FISHING GEAR WAS APPARENTLY DEPLOYED IN AREA AT 

THE END OF MARCH. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. FINAL OUTCOME UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 4 16 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI 

3 BLACK AND WHITE BUOYS AND ROPE AROUND 

TAILSTOCK. GEAR CONFIRMED AS CA DUNGENESS 

CRAB FROM TAG/BUOY NUMBER. GEAR HAD BEEN SET 

IN SAN MATEO COUNTY. ANIMAL SEEN LAST ON JUNE 

4TH IN MONTEREY BAY, EMACIATED AND HEAVILY 

SCARRED, APPARENTLY SHED GEAR FROM TAILSTOCK, 

BUT UNKNOWN IF GEAR REMAINED ON PECTORAL 

FLIPPERS. LINE SEEN DEEPLY EMBEDDED IN TAILSTOCK 

ON 2 OCCASIONS, WITH MANY CYAMIDS DEEP IN 

WOUNDS. DETERIORATING CONDITION OF ANIMAL 

WARRANTS SERIOUS INJURY UNDER CATEGORY L10, 

CONSIDERING CONSTRICTING NATURE OF 

ENTANGLEMENT, BUT UNKNOWN GEAR 

CONFIGURATION. HEALTH DECLINE. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 4 18 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

REPORTED AS ROPE AND 2 BUOYS (ONE WHITE, ONE 

ORANGE) ENTANGLING WHALE'S CAUDAL PEDUNCLE. 

WHALE NOT RELOCATED. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 4 20 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE)

WHALE ENTANGLED AROUND BODY (2 WRAPS = 

MULTIPLE WRAPS), BOTH PECTORCAL FINS, AND 

MOUTH. TANDEM ORANGE AND PINK BULLET BUOYS, 

PLUS 1 DARK ORANGE OR RED BULLET BUOY ATTACHED 

TO BLUE OR GREEN POLYLINE. FISHERY POSITIVELYIDENTIFIED AS CA DUNGENESS CRAB POT FROM BUOY 

TAG. ONE BUOY WAS BEING TRAILED 100 YARDS BEHIND 

WHALE. GEAR HAD BEEN SET ON MARCH 29, 2016 IN 

SAME AREA. WHALE DISENTANGLEMENT TEAM WAS 

ABLE TO ATTACH TELEMETRY PACKAGE TO WHALE AND 

RETURN ON 4/21/2016 TO FULLY DISENTANGLE WHALE 

(=RESCUE). 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 4 20 

WA/OR/CA 

SABLEFISH POT 

FISHERY 

HUMBOLDT CA SI (PRORATE)

FISHERY OBSERVER REPORTED ENTANGLEMENT WITH 

SABLEFISH GEAR 20 MILES OFFSHORE, 30 MILES SOUTH 

OF CRESCENT CITY. NARRATIVE INCLUDES 

DESCRIPTION OF 2 PINK BUOYS AND 200 FEET OF LINE. 

WHALE WAS DISENTANGLED BY FISHING VESSEL WITH 

OBSERVER ONBOARD. UNKNOWN IF FULLY 

DISENTANGLED, THUS ASSIGNED AS A PRORATED 

SERIOUS INJURY. NEED ADDITIONAL INFO FROM 

OBSERVER PROGRAM. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. OBSERVER PROGRAM. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 4 20 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

THRASHING WHALE SEEN AT DISTANCE WITH TWO 

BUOYS AND 6-8 CAUDAL PEDUNCLE WRAPS, NOT 

RESIGHTED. CONFIGURATION AND AMOUNT OF GEAR 

UNKNOWN. MULTIPLE WRAPS. PHOTOS. FINAL 

OUTCOME UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 5 8 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE) 

SWIMMING WHALE WITH TWO BUOYS, ONE ORANGE 

AND ONE RED WITH DUNGENESS CRAB TAG, ON LEFT 

SIDE OF BODY, ORANGE COLORED LINE. POSSIBLE LEFT 

PECTORAL WRAP, FLOAT AND LINE DRAPED OVER 

BODY. ANIMAL APPARENTLY SELF-RELEASED FROM 

GEAR WAS SEEN SWIMMING GEAR FREE BY FAST RAFT 

TEAM. GEAR ORIGINALLY SET IN MONTEREY BAY AREA 

IN LATE MARCH. AMOUNT AND CONFIGURATION OF 

GEAR UNKNOWN. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2016 5 10 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE) 

ENTANGLED WHALE SWIMMING SOUTH, LUNGING AT 

SURFACE. BUOY, HEAVY LINE FROM A CRAB POT 

SYSTEM WRAPPED AROUND BOTH SIDES OF THE 

WHALE'S FLUKES. WHALE DISENTANLGEMENT TEAM 

INTERVENED AND WAS ABLE TO PHOTOGRAPH WHALE 

AND RETRIEVE ENTANGLING GEAR (=RESCUE). ANIMAL 

LAST SEEN ALIVE, FREE OF GEAR, IN GOOD BODY 

CONDITION. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2016 5 12 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE)

GREEN AND ORANGE LINES OVER BODY AND FLUKES. 2 

BUOYS ASSOCIATED WITH GEAR. LAST SEEN ALIVE, 

LIKELY WITH REMAINING TRAILING GEAR. GEAR WAS 

POSITIVELY-IDENTIFIED AND MATCHED GEAR THAT WAS 

INVOLVED IN APRIL 11, 2016 ENTANGLEMENT IN SAME 

AREA. ABOUT 50 FT OF LINE AND A RED BUOY WAS 

REMOVED BY THE REPORTING PARTY AND THEN THE 

WHALE DOVE AND SWAM OFF. LINE WAS STILL VISIBLE 

AROUND THE TAIL, IN ADDITION TO AN ORANGE BUOY. 

FINAL GEAR CONFIGURATION AND AMOUNT UNKNOWN. 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 5 17 

WA/OR/CA 

SABLEFISH POT 

FISHERY 

LINCOLN OR SI 

ALERT WHALE WITH GOOD BODY CONDITION WAS 

ENTANGLED IN VERTICAL LINE, HIGH ON THE TAIL 

STOCK WITH SABLEFISH POT/TRAP GEAR AND THREE 

POLY BALLS (ONE ORANGE, ONE BLUE, AND ONE WHITE) 

AND A HIGH FLYER (20 FT, ALUMINUM POLE WITH FLAG 

AND PHOTO SENSITIVE LIGHT WITH 3/4" LINE. WHALE 

WAS DESCRIBED AS SOMETIMES BEING VERTICAL IN 

THE WATER WHEN SURFACING TO BREATHE. EVIDENCE 

THAT THE WHALE WAS ANCHORED IN PLACE. PHOTO 

EVIDENCE SUGGESTS THE GEAR WAS ~ 40 FEET BEHIND 

THE WHALE = TRAILING GEAR. DISENTANGLEMENT 

EFFORT BY CREW OF FISHING VESSEL. SOME GEAR 

REMAINED ON ANIMAL AFTER DISENTANGLEMENT 

EFFORT (=RESCUE). WHALE DESCRIBED AS SWIMMING 

OFF QUICKLY AFTER SOME GEAR WAS REMOVED. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 5 17 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) WHALE BOBBING NEAR SURFACE, 2 YELLOW BUOYS ASSOCIATED. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 5 22 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MONTEREY CA SI (PRORATE) 

BLUE LINE COMING OUT OF THE RIGHT CORNER OF 

MOUTH, DOWN RIGHT SIDE OF BODY, 4 BUOYS TOTAL; 

RESIGHTING COMMENT: 100 FEET OF BLUE LINE, 3/4 TO 

1 INCH LINE, TRAILING BEHIND WHALE, BELIEVED TO 

ORIGINATE FROM MOUTH; 4 BUOYS, 3 ORANGE, 1 WHITE; 

PURPLE TAG OF UNKNOWN SHAPE NOTED FROM 

PHOTOS ON BUOY. BREACHING AND PECTORAL FIN 

SLAPPING, SUBMERGING ALL GEAR WHEN DIVING. GEAR 

CONFIGURATION AND AMOUNT UNKNOWN. WHALE 

RESIGHTED ON 5/24, STILL ENTANGLED. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 5 22 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

WHALE TRAILING 2 BUOYS (1 ORANGE, 1 GREEN AND 

WHITE) APPROX. 10 FT. BEHIND FLUKES. 

ENTANGLEMENT BELIEVED TO INVOLVE FLUKES BUT 

COULD NOT BE CONFIRMED. WHALE WAS TRAVELING 

SLOWLY AND DID NOT SHOW FLUKES WHEN DIVING, BUT 

ALL VISIBLE GEAR WAS SUBMERGED WHEN WHALE 

DOVE. BUOYS DESCRIBED BY REPORTING PARTY AS 

CRAB POT BUOYS, BUT THE IDENTITY OF THE FISHERY 

COULD NOT BE CONFIRMED. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 5 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA SI (PRORATE) WHALE WITH RED / ORANGE BUOY BEING TRAILED 10 FT. BEHIND. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 6 1 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

SONOMA CA SI (PRORATE)

FISHING VESSEL OFF BODEGA BAY REPORTED WHALE 

ENTANGLED WITH THREE BUOYS CLOSE TO BODY AND 

TAIL. WHALE RESIGHTED 4 DAYS LATER IN SAME 

VICINITY AT THE SURFACE, NOT DIVING UNTIL A VESSEL 

APPROACHED. WHALE DRAGGED BUOYS UNDERWATER 

UPON DIVING. WHALE WAS SEEN AGAIN OFF SAN DIEGO 

ON 7/2/2016 AND 7/3/2016, STILL ENTANGLED AND 

SPYHOPPING, TRAILING 60-70 FT OF LINE, PLUS BUOYS. 

CONFIRMED DUNGENESS CRAB POT TRAP (CA) FROM 

PHOTOS. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 6 1 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA 

BARBARA CA SI (PRORATE) 

WHALE OFF SANTA CRUZ ISLAND, FEEDING WITH OTHER WHALES, REPORTED TO BE TRAILING 3 BUOYS. AMOUNT 

AND CONFIGURTION OF GEAR UNKNOWN. PHOTOS 

APPARENTLY TAKEN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 6 2 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

WHALE-WATCHING VESSEL REPORTED WHALE WITH 

BLUE LINE (MULTIPLE WRAPS) BEHIND BLOWHOLE AND 

BEHIND DORSAL, 2 YELLOW BULLET BUOYS ON RIGHT 

SIDE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. PHOTOS TAKEN, INCLUDING FLUKE-ID. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 6 4 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MONTEREY CA SI 

MULTIPLE CONSTRICTING WRAPS AT BASE OF LEFT PECTORAL FLIPPER, LINE HANGING DOWN TO TRAP 

(NOT SEEN), 2 BUOYS: 1 CLOSE TO TIGHT WRAP (WITH 

DUNGENESS CRAB BUOY TAG POSITIVELY-IDENTIFIED, 

AS SEEN ON VIDEO, SECOND BUOY ~5 FEET ABOVE 

(TRAILER BUOY) ; LINE SCAR BY DORSAL FIN. FASTRAFT 

TEAM WAS ABLE TO ASSESS ANIMAL AND TAKE VIDEO / 

PHOTOS. DESIGNATED L2 SERIOUS INJURY DUE TO 

CONSTRICTING WRAPS. FINAL OUTCOME UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 6 8 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA SI (PRORATE) 

REPORT FROM PERSON IN KAYAK WHO ENCOUNTERED 

WHALE TRAILING ORANGE AND WHITE BUOY 10 FEET 

BEHIND WHALE. BUOY SUBMERGED WHEN WHALE 

DOVE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 6 9 GILLNET FISHERY MONTEREY CA NSI 

GREEN MONOFILAMENT NETTING, RIGHT SIDE OF 

MOUTH, DRAPED OVER BODY, SOMETIMES OVER 

DORSAL FIN. NET EXITING MOUTH AND TRAILING. 

ANIMAL BREACHING. ANIMAL IN APPARENT GOOD 

HEALTH WITH MINIMAL AMOUNT OF GEAR. FINAL 

OUTCOME UNKNOWN. 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 6 12 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

VANCOUVER 

ISLAND 

BRITISH 

COLUMBIA SI 

LINE DEEPLY EMBEDDED IN TAILSTOCK, TRAILING 3 

BUOYS. SIGNIFICANT SCARRING AROUND THE TAIL 

STOCK AND ROPE INJURIES ON THE ANTERIOR EDGES 

OF BOTH SIDES OF THE FLUKE, THE ROPE WRAP WAS 

AROUND THE TAIL STOCK AND THERE WAS ALSO A 

PERPENDICULAR ROPE WRAP ON THE RIGHT SIDE OF 

THE FLUKE WHICH WAS DEEP INTO THE 

BLUBBER/FLESH. CONSTRICTING ENTANGLEMENT AND 

SERIOUS INJURY UNDER CATEGORY L2. FISHERY 

POSITIVELY-IDENTIFIED THROUGH TAG NUMBERS. 

FISHERMAN HAD SET APPROX. 500 TRAPS IN BODEGA 

BAY, CA AREA BETWEEN MARCH 31 AND JUNE 1 OF 2016. 

FINAL OUTCOME UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 6 12 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) RED AND WHITE BUOYS (2 TOTAL BUOYS) TRAILING ALONGSIDE BODY. LENGTH OF LINE, AMOUNT OF GEAR AND CONFIGURATION UNKNOWN. SI (PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 6 14 VESSEL STRIKE LOS ANGELES CA DEAD 

CAME INTO LOS ANGELES HARBOR ON THE BOW OF A 

LARGE SHIP. WORKING LOCATION AND LIMITED TIME 

FOR SAMPLING BEFORE ANIMAL WAS TOWED OUT OF 

THE HARBOR PREVENTED US FROM PREFORMING FULL 

NECROPY. SHIP TRACKER DATA SHOWS A REDUCTION 

IN SPEED AND A 360 DEGREE MANEUVER MIGHT 

INDICATE THE ANIMAL WAS STRUCK AT 34 DEG 26' 52.5" 

N, 125 DEG 23' 01.0" W. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2016 6 17 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI 

EMACIATED WHALE SWIMMING WITH 2 UNIQUE SETS OF 

CA DUNGENESS CRAB POT GEAR THROUGH MOUTH. 

THE GEAR REPRESENTS TWO SEPARATE VESSELS' 

BUOYS AND ROPES. CONFIRMED FROM TAG NUMBERS. 

FAST RAFT TEAM WAS ABLE TO ATTACH TELEMETRY TO 

WHALE. DESIGNATED SERIOUS INJURY BECAUSE OF 

EMACIATED CONDITION, WHICH IMPLIES THAT GEAR IN 

MOUTH HAS INTERFERED WITH FEEDING FOR SOME 

TIME. HEALTH DECLINE. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 6 23 VESSEL STRIKE CLALLAM WA SI 

AN 87' USCG VESSEL STRUCK A 25-30' HUMPBACK 

WHALE ON ITS MIDSECTION WITH THE BOW WHILE 

TRAVELING AT 10-12 KNOTS. THE WHALE WAS 

OBSERVED 10 FEET IN FRONT OF THE CUTTER BEFORE 

THE COLLISION TOOK PLACE. NO APPARENT DAMAGE 

TO THE VESSEL AND THE ANIMAL WAS AT THE SURFACE 

OF THE WATER AFTER THE COLLISION. THE ANIMAL WAS 

OBSERVED FOR A PERIOD OF 10 MINUTES POST 

COLLISION, FOLLOWING THE COLLISION THE ANIMAL 

DOVE FOR 2 MINUTES AND THEN WAS OBSERVED AT 

THE SURFACE. FINAL OUTCOME UNKNOWN. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 6 24 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA SI (PRORATE) 

WHALE SWIMMING AND DIVING, TRAILING 2 SETS OF 

YELLOW/WHITE/ORANGE BUOYS ABOUT 5 FEET BEHIND 

THE BLOWHOLE AND TRAILING LINE 100 FEET BEHIND 

ANIMAL. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. FINAL OUTCOME UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 7 5 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE) WHALE TRAILING YELLOW AND BLUE CRAB BUOY AND 30 FEET OF LINE. FISHERY IDENTIFIED FROM BUOY TAG. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 7 6 VESSEL STRIKE SAN MATEO CA DEAD 

9.7 METER MALE WITH EVIDENCE OF HEMORRHAGING 

AND EDEMA INTERNALLY. DORSAL AND LATERAL 

PROCESS FRACTURES TO CERVICAL VERTEBRAE C1-C3. 

NECROPSY DONE BY THE MARINE MAMMAL CENTER. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2016 7 24 VESSEL STRIKE SAN MATEO CA DEAD 

10.9 METER FEMALE HUMPBACK. PHOTOS SHOW GOOD 

BODY CONDITION. MULTIPLE FRACTURES OF CAUDAL 

SKULL WITH SHARDS ON BONE LOOSE IN NECROTIC 

TISSUE. NECROPSIED BY THE MARINE MAMMAL CENTER. 

FINDINGS CONSISTENT WITH BLUNT FORCE TRAUMA 

DUE TO VESSEL STRIKE. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2016 8 1 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI (PRORATE) 

1 MILE WEST OF OCEANO DUNES. WHALE STAYING AT 

SURFACE, TRAILING 4 OR 5 BUOYS IN LINE, 30 FEET OR 

MORE BEHIND WHALE, BLUE ROPE ON HEAD OF WHALE. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. NO 

RESIGHTS. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 8 6 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

ORANGE CA SI 

PHOTOS SHOW WHALE WITH BLUE LINE THROUGH 

MOUTH, CONSTRICTING AROUND LEFT FLIPPER, WITH 

RED/PINK LACERATIONS. TWO BUOYS WITH LENGTH OF 

LINE IN EXCESS OF WHALE TRAILING. MULTIPLE 

RESIGHTS OF WHALE THROUGH 12/8/2016. PARTIAL 

DISENTANGLEMENT ON 9/5/2016 BUT ANIMAL STILL 

TRAILED GEAR. PHOTOS ON 9/14 SHOW LINE STILL 

WRAPPED AROUND LEFT FLIPPER, WITH DEEPER 

LACERATIONS THAN ORIGINAL 8/6 PHOTOS. FINAL 

PHOTOS OF WHALE ON 12/8 SHOW DISCOLORED DORAL 

SURFACE OF WHALE, GRAYISH, WITH BIOLOGICAL 

GROWTH (DIATOMS?). HEALTH DECLINE AND 

CONSTRICTING NATURE OF ENTANGLEMENT AND 

DETERIORATING CONDITION WARRANTS SERIOUS 

INJURY. ANIMAL SEEN MONTHS LATER, WITHOUT GEAR. 

ON 4/20/2017, THIS SAME WHALE, WELL-KNOWN BY THE 

NAME 'SCARLETT' LOCALLY, WAS FOUND DEAD IN 

ORANGE COUNTY, CALIFORNIA. 

DEAD 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

RED/ORANGE LINE COMING OUT OF ANTERIOR BASE OF 

MOUTH AND WRAPPED TIGHTLY AROUND BASE OF 

DUNGENESS CRAB RIGHT FLIPPER. TRAILING LINE WITH 2 BUOYS, LINE HUMPBACK CA-OR-WA 2016 8 9 POT FISHERY MONTEREY CA SI LENGTH APPEARS ROUGHLY 2X - 3X LENGTH OF WHALE. SI 

WHALE (CALIFORNIA) GEAR POSITIVELY-IDENTIFIED BY BUOY/TAG NUMBER. 

EVIDENCE OF CONSTRICTING ENTANGLEMENT. GEAR 

AMOUNT AND CONFIGURATION UNKNOWN. 

LINE AROUND BODY BEHIND BLOWHOLE. TRAILING ONE UNIDENTIFIED HUMPBACK SI BUOY APPROX. 20 FT BEHIND WHALE. BUOY SI CA-OR-WA 2016 8 12 FISHERY MONTEREY CA 

WHALE (PRORATE) SUBMERGES WHEN WHALE DIVES. CONFIGURATION AND (PRORATE) INTERACTION AMOUNT OF GEAR UNKNOWN. 

EMACIATED WHALE WITH DISCOLORED GRAY SKIN AND 

APPARENT DIATOM GROWTH, TRAILING TWO BUOYS 

AND 20 FT. OF LINE. FISHERY CONFIRMED VIA BUOY DUNGENESS CRAB HUMPBACK TAG. CONDITION OF WHALE WARRANTS SERIOUS CA-OR-WA 2016 8 16 POT FISHERY MONTEREY CA SI SI 

WHALE INJURY DESIGNATION. AMOUNT OF GEAR AND (CALIFORNIA) CONFIGURATION UNKNOWN, BUT LIKELY HAS 

INTERFERED WITH FEEDING, WHICH SUGGESTS 

INGESTION OF GEAR. DOCUMENTED HEALTH DECLINE. 

UNIDENTIFIED WHALE SEEN WITH LINE AND A SINGLE BUOY TRAILING HUMPBACK SAN SI SI CA-OR-WA 2016 8 16 FISHERY CA BEHIND IT. AMOUNT AND CONFIGURATION OF GEAR 

WHALE FRANCISCO (PRORATE) (PRORATE) INTERACTION UNKNOWN. 

TRAILING 2 WHITE BUOYS WITH BLACK TOPS (10 FEET 

DUNGENESS CRAB APART) AND 1 YELLOW BUOY, 100 FT BEHIND WHALE, HUMPBACK SI SI CA-OR-WA 2016 8 24 POT FISHERY MONTEREY CA BUOYS FOULED, CDFW DUNGENESS CRAB TRAP TAG. 

WHALE (PRORATE) (PRORATE) (CALIFORNIA) CONFIGURATION AND AMOUNT OF GEAR UNKNOWN. 

ANIMAL LAST SEEN SWIMMING WITH ENTANGLEMENT. 

UNIDENTIFIED HUMPBACK SAN LUIS SI CA-OR-WA 2016 8 24 FISHERY CA WHALE OBISPO (PRORATE) INTERACTION 

2 MILES OFF MORRO ROCK. ORANGE/BROWN LINE WITH 

ORANGE FLOAT TRAILING FROM RIGHT SIDE OF BODY, 

BUT VERY CLOSE TO BODY, BUOY NEAR RIGHT 

PECTORAL FLIPPER; GEAR IS POSSIBLY ATTACHED TO SI LEFT SIDE, DRAPED OVER BACK AND FLOATING ON 

(PRORATE) RIGHT SIDE. MOVING AND FEEDING WITH SOCIAL GROUP 

OF HUMPBACKS, DIVING. ANIMAL RESIGHTED THROUGH 

8/26. PHOTOS AND VIDEO REVIEWED. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

UNIDENTIFIED ONE RED POLYBALL (STILL INFLATED) BEING TRAILED A HUMPBACK SANTA SI SI CA-OR-WA 2016 8 24 FISHERY CA FEW YARDS BEHIND TAIL OF WHALE. AMOUNT AND 

WHALE BARBARA (PRORATE) (PRORATE) INTERACTION CONFIGURATION OF GEAR UNKNOWN. 

UNIDENTIFIED WHALE NEAR SE FARALLON ISLAND WITH LARGE BUOY HUMPBACK SAN SI SI CA-OR-WA 2016 8 27 FISHERY CA TRAILING 30 FEET BEHIND WRAPS ON TAIL. AMOUNT 

WHALE FRANCISCO (PRORATE) (PRORATE) INTERACTION AND CONFIGURATION OF GEAR UNKNOWN. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 8 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI (PRORATE) 

ACTIVE, DIVING WHALE, TRAVELING WITH OTHER 

WHALES, TRAILING A SINGLE ORANGE BUOY 

APPROXIMATELY 20 FEET BEHIND WHALE. PHOTOS 

REVIEWED. UNKNOWN AMOUNT AND CONFIGURATION 

OF GEAR. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 8 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

WHALE SEEN SWIMMING AND DIVING WITH A SINGLE 

WRAP OF BLUE LINE APPROXIMATELY 2-3 FEET BEHIND 

BLOWHOLES. FLUKES SHOW EVIDENCE OF WHITE 

SCARRING, POSSIBLY RELATED TO THIS 

ENTANGLEMENT OR POSSIBLY OLDER. ANIMAL 

OTHERWISE APPEARS HEALTHY. PHOTOS REVIEWED. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 9 16 VESSEL STRIKE TILLAMOOK OR DEAD 

CAUDAL HALF OF PEDUNCLE MISSING; BASED ON 

DAMAGE TO CAUDAL VERTEBRA, BELIEVED TO HAVE 

BEEN CUT OFF BY PROPELLER; HOWEVER, UNCLEAR AS 

TO WHETHER DAMAGE OCCURRED PRE- OR POSTMORTEM; ALL INTERNAL ORGANS EXPELLED FROM 

DECOMPOSITION.; ONLY VENTRAL SIDE OF WHALE 

COULD BE EXAMINED. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2016 9 17 CA SPOT PRAWN TRAP FISHERY SAN MATEO CA SI 

CALIFORNIA SPOT PRAWN TRAP GEAR; BLUE STEEL LINE 

AROUND ONE PECTORAL FLIPPER AND 4 ORANGE POLY 

BALLS. RESIGHTED OFF SANTA BARBARA COUNTY ON 

10/4/2016 YELLOW ROPE AROUND MIDSECTION AND A "4-

INCH LACERATION", THOUGH THE LOCATION OF THE 

LACERATION IS NOT PROVIDED. PHOTOS DO NOT SHOW 

LACERATION AND SHOW APPARENT MARINE GROWTH 

ON ROPES. INTERVIEW WITH FISHERMAN INDICATES 

THAT ONE OF THE BUOYS IS FROM A SET MADE AT THE 

END OF AUGUST WEST OF SAN MATEO IN 100 FATHOMS 

OF WATER, WITH APPROXIMATELY 120 FATHOMS OF 

LINE. FISHERMAN RECOVERED HIS GEAR AND ASSUMES 

THAT ALL THAT REMAINS ON WHALE IS LINES AND 

BUOYS. DESIGNATED AS A SERIOUS INJURY. UNKNOWN 

AMOUNT AND CONFIGURATION OF GEAR REMAIN ON 

ANIMAL. FINAL OUTCOME UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 9 25 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

MARIN CA SI (PRORATE) 

COAST GUARD REPORTED WHALE WITH "CRAB POTS 

AND LINES". WHALE TRAILING 2 ORANGE BUOYS, 1 

WHITE BUOY, TRAILING 10 FEET BEHIND DORSAL FIN, 

CLOSE TO FLUKES. WHALE WAS ABLE TO FLUKE UP AND 

DIVE. UNSUCCESSFUL SEARCH FOR WHALE, AMOUNT 

AND CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 9 26 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

MARIN CA SI (PRORATE) 

AERIAL PHOTO OF HUMPBACK WHALE, "POSSIBLY 

ANCHORED" AND "HANGING NEAR SURFACE", WITH 

PECTORAL FLIPPERS FLARED OUT, TRAILING APPROX. 

150 FT. OF LINE AND 4 ORANGE POLYBALLS. NEAR PT. 

REYES. GEAR AMOUNT AND CONFIGURATION 

UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 10 9 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN 

FRANCISCO CA SI (PRORATE) 

WHALE TRAILING ONE LARGE ORANGE POLYBALL AND 

ONE SMALLER WHITE POLYBALL NEAR MID-BODY. SEEN 

AMONG A GROUP OF 30+ FEEDING WHALES. ANIMAL 

WAS DIVING. PHOTOS SHOW WHALE BETWEEN 

OBSERVER AND POLYBALLS, SO GEAR IS OBSCURED BY 

DORSAL SURFACE OF WHALE, BUT OTHERWISE 

CLEARLY SEEN. CONFIGURATION AND AMOUNT OF 

GEAR UNKNOWN. NO RESIGHTS. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 10 12 

UNIDENTIFIED 

FISHERY 

INTERACTION 

ORANGE CA SI 

LINE AND 4 BUOYS (3 ORANGE, 1 WHITE). LINE COMES 

OUT OF MOUTH ON BOTH SIDES OF WHALE (SEEN FROM 

DRONE FOOTAGE) AND WRAPS AROUND HEAD OF 

WHALE POSTERIOR TO BLOWHOLES. LINE APPEARS 

CONSTRICTING WITH VISIBLE INDENTATION ON DORSAL 

SURFACE OF BODY. RIGHT PECTORAL FLIPPER 

APPEARS TO BE PINNED TO BODY. DISENTANGLEMENT 

TEAM MADE UNSUCCESSFUL ATTEMPT TO REMOVE 

GEAR. WHALE SEEN DIVING NORMALLY. UNDERWATER 

VIDEO OF ANIMAL TOO MURKY TO ASSESS SEVERITY OF 

ENTANGLEMENT. TRAILING LINE DOES NOT EXCEED 

LENGTH OF WHALE. DESIGNATED AS SERIOUS INJURY 

UNDER CATEGORY L2 BECAUSE OF EVIDENCE OF 

CONSTRICTING GEAR. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2016 10 21 GILLNET FISHERY ORANGE CA NSI

WHALE IDENTIFIED AS 'COMET' WITH EITHER GILLNET 

OR BRAIDED NET AROUND FLUKES, BUT PEDUNCLE 

APPEARS FREE OF GEAR. MARINE GROWTH ON GEAR 

MAKES IT UNCLEAR WHETHER OR NOT NET IS 

MONOFILAMENT OR BRAIDED. ANIMAL DIVING AND 

SWIMMING NORMALLY. WHALE RESIGHTED OFF LOS 

ANGELES LATER THAT WEEK. BARNACLE GROWTH ON 

FLUKES APPEARS TO BE CONTRIBUTING TO THE 

CONTINUED ATTACHMENT OF NET ON FLUKES. GEAR 

ORIGIN UNKNOWN. NON-SERIOUS INJURY DUE TO 

LIMITED DRAPED GEAR ON FLUKES. WHALE SEEN AS 

RECENTLY AS 2019 GEAR FREE IN GOOD HEALTH. 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 10 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA NSI 

PHOTOGRAPH OF MONOFILAMENT LINE OVER FLUKES, 

LINE IS TAUGHT. WHALE WATCH SURVEY. ANIMAL RESIGHTED AND PHOTOGRAPHED LATER THAT DAY AND 

LINE IS NO LONGER VISIBLE. APPARENT SELF-RELEASE. 

ANIMAL WAS SEEN FEEDING. ORIGINAL AMOUNT AND 

CONFIGURATION OF LINE UNKNOWN. RESIGHTED GEAR 

FREE IN 2019. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2016 11 26 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MEXICO MEXICO SI (PRORATE)

WHALE TRAILING CRAB POT, 3 BUOYS AND 100 METERS 

OF ROPE NEAR CABO SAN LUCAS. DRAWING OF WHALE 

SHOWS RELATIVE LOCATION OF GEAR WRAPPED 

AROUND RIGHT PECTORAL FLIPPER. SELF-RELEASE OF 

GEAR THAT WAS COLLECTED, UNCERTAIN IF WHALE 

SHED ALL GEAR. PHOTOS SHOW GEAR RECOVERED 

FROM WHALE AND POSITIVELY-IDENTIFIED FROM 

LICENSE TAG NUMBER. GEAR ORIGINALLY SET IN 

SPRING 2017 NEAR SAN FRANCISCO. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 12 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SONOMA CA SI (PRORATE) 

WHALE TRAILING ROPE AND 4 BUOYS, 2 BUOYS NEAR 

HEAD, 2 NEAR FLUKES. ANIMAL SEEN NEAR BODEGA 

BAY, CA, THRASHING AT SURFACE, 'LOOKS EXHAUSTED'. 

TWO TRAILING BUOYS ARE BICOLOR (ORANGE/YELLOW 

AND RED). LEADING BUOYS ARE WHITE WITH 

LONGITUDINAL RED BAR. BUOYS LOOK RELATIVELY 

FRESH AND UNFOULED. AMOUNT AND CONFIGURATION 

OF GEAR UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2016 12 8 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

SONOMA CA NSI

WHALE WRAPPED AROUND MOUTH AND LEFT SIDE 

NEAR BODEGA BAY DISENTANGLED FROM LINE AND 10 

BUOYS BY COMMERCIAL FISHERMAN (=RESCUE). WHALE 

WAS BLEEDING, FISHERMEN DESCRIBED GEAR AS 

CUTTING INTO WHALE (=CONSTRICTING). FISHERMEN 

SPENT 4 HRS REMOVING ALL GEAR FROM WHALE. 

WHALE SWAM AROUND AFTER RELEASE FROM GEAR. 

FISHERY POSITIVELY-IDENTIFIED FROM TRAP TAG. THIS 

RECORD IS CONSIDERED SEPARATE FROM THE 

12/3/2016 RECORD IN SAME REGION BECAUSE OF THE 

DIFFERENCE IN NUMBER AND COLOR OF BUOYS 

ASSOCIATED WITH ENTANGLEMENT. WHALE APPEARED 

HEALTHY. NON-SERIOUS INJURY DUE TO REMOVAL OF 

ALL GEAR AND APPARENT HEALTH OF ANIMAL. 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2016 12 13 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MEXICO MEXICO NSI

BAJA CALIFORNIA WHALE WATCH COMPANY REPORTED 

WHALE ENTANGLED IN 100 FT OF ROPE AND 3 

ASSOCIATED BUOYS. UNDERWATER PHOTO SHOWS 

LINE TRAILING BACK FROM WHALE'S MIDSECTION, 

APPARENTLY ON THE VENTRUM BECAUSE ORIGIN OF LINE IS NOT VISIBLE FROM DORSAL PERSPECTIVE OF 

PHOTO. PECTORAL FLIPPERS, FLUKES, AND PEDUNCLE 

APPEAR FREE OF GEAR. WHALE APPEARS ROBUST AND 

HEALTHY FROM PHOTOS. FISHERY POSITIVELYIDENTIFIED FROM TRAP TAG AFTER GEAR WAS 

REMOVED AND COLLECTED FROM WHALE. WHALE DID 

NOT SHOW ANY APPARENT INJURIES POST-RELEASE. 

ALL GEAR APPARENTLY REMOVED (=RESCUE). BUOYS 

APPEAR WEATHERED AND NOT NEW. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2017 1 6 

DUNGENESS CRAB 

POT FISHERY 

(RECREATIONAL) 

MEXICO MEXICO SI 

SAN BLAS, MEXICO (21.525, -105.286). WHALE DESCRIBED 

AS WEAK AND EMACIATED WITH HIGH CYAMID LOAD 

HAD MULTIPLE WRAPS ENTANGLED AROUND FLUKES 

AND A BROKEN POT. ONLY ONE PHOTO OF WHALE FROM 

BEHIND DOES NOT SHOW GEAR BUT SHOWS A GRAYISH 

COLORATION TO SKIN. DRAWING OF ENTANGLEMENTS 

DEPICTS MULTIPLE WRAPS AROUND FLUKES AND 

PEDUNCLE. COMPLETE GEAR CONFIGURATION 

UNKNOWN AND DETERMINED TO BE A SERIOUS INJURY 

DUE TO DOCUMENTED HEALTH DECLINE. GEAR TRACED 

TO OWNER VIA BUOY INFORMATION TO CALIFORNIA 

RECREATIONAL DUNGENESS POT THAT WAS 

ORIGINALLY SET IN CENTRAL CALIFORNIA WATERS ON 

11/5/2016 (APPROX POSITION = 33.54, -122.54. CRAB TRAP 

WAS LOST ON THAT 1ST DAY (11/5/2016). 

DISENTANGLEMENT TEAM REMOVED ALL GEAR FROM 

WHALE. SERIOUS INJURY DUE TO HEALTH DECLINE. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 4 17 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MONTEREY CA SI (PRORATE)

TRAILING 100 FEET GREEN LINE, TRAILING SIDE OF 

BODY, 2 FLOATS, 1 RED, 1 WHITE. GEAR POSITIVIELY 

IDENTIFIED AS CALIFORNIA DUNGENESS CRAB POT 

GEAR AFTER DISENTANGLEMENT TEAM (=RESCUE) CUT 

AND REMOVED LINE AND BUOYS BEHIND THE MOUTH. IT 

WAS THOUGHT THAT PERHAPS 30 FEET OF LINE 

REMAINED ON ANIMAL AFTER DISENTANGLEMENT 

MISSION. LINE APPEARED TO BE COMING OUT OF LEFT 

SIDE OF MOUTH. NO LINE VISIBLE ON THE LEFT 

PECTORAL OR FLUKE. LINE WAS INITIALLY DRAPED OVER THE BACK OF THE WHALE BUT HAD SLID OFF 

DURING DISENTANGLEMENT ENCOUNTER. 

CONFIGURATION OF REMAINING GEAR UNKNOWN. 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2017 6 17 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

SWIMMING WHALE WITH ORANGE LINE ACROSS LEFT 

SIDE OF BODY. GEAR CONFIGURATION AND AMOUNT 

UNKNOWN. WHALE NOT SEEN AGAIN, ONLY ONE PHOTO 

REVIEWED, SHOWS A SINGLE LINE ON LEFT SIDE OF 

ANIMAL. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2017 6 18 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE)

TWO BUOYS ON RIGHT SIDE TRAILING BEHIND THE 

FLUKE, LINE (LIGHT OR WHITE) APPEARS TO BE 

RUNNING UNDERNEATH THE BODY FROM THE RIGHT 

PECTORAL FIN AND/OR UNDERNEATH THE HEAD OVER 

THE RIGHT SIDE OF FLUKES (AS NOTED FROM 

PHOTO/VIDEO); ADDITONAL SCARRING FROM OLD 

ENTANGLEMENT ON PEDUNCLE. FISHERY SOURCE 

CONFIRMED BY FISHERMAN VIA PHOTOS OF BUOYS AND 

TRAP NUMBERS. THE ENTANGLING GEAR HAD BEEN SET 

IN HALF MOON BAY. PREVIOUS SIGHTING OF THIS 

WHALE, KNOWN AS 'TRAINWRECK' WAS ON 5/22/2017 

AND WAS NOT ENTANGLED AT THAT TIME. FINAL 

OUTCOME UNKNOWN, FULL CONFIGURATION AND 

AMOUNT OF GEAR UNKNOWN. NO VISIBLE INJURIES 

OTHER THAN OLD SCARRING NEAR PEDUNCLE. WHALE 

RESIGHTED IN 2019 GEAR FREE. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2017 6 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

BLUE LINE BEHIND DORSAL FIN, CUTTING INTO ANIMAL. 

GEAR AMOUNT AND CONFIGURATION UNKNOWN. 

SERIOUS INJURY UNDER L2 BECAUSE OF 

CONSTRICTING WRAP ENTANGLEMENT. ANIMAL 

APPEARED TO BE LUNGE FEEDING. FINAL OUTCOME 

UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 6 25 MARINE DEBRIS SAN MATEO CA SI 

WHALE STRUGGLING AT SURFACE AND ANCHORED IN 

PLACE, NOT RAISING ITS FLUKES OUT OF THE WATER AT 

ALL. NO GEAR VISIBLE, BUT APPARENT THAT WHALE IS 

ANCHORED BY SOMETHING. VIDEO / PHOTO REVIEWED 

BY J. CARRETTA. FINAL OUTCOME UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 6 28 VESSEL STRIKE SAN FRANCISCO CA SI 

CITIZEN TOOK PHOTO OF PLEASURE BOAT HITTING 

WHALE BELOW GOLDEN GATE BRIDGE. EXTENT OF 

INJURIES UNKNOWN, SPEED OF VESSEL UNKNOWN, BUT 

PROBABLY IN EXCESS OF >10KTS BASED ON PHOTO. 

APPEARS VESSEL IS APPROXIMATELY SAME SIZE AS 

WHALE. 

SI

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2017 7 2 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

WA SI 

WHALE WITH LINE WRAPPED AROUND AND CUTTING 

INTO ANIMAL, MIDWAY BETWEEN FLUKES AND DORSAL 

HUMP. DEEP AND EXTENSIVELY-WOUNDED AREA IS 

HEAVILY COVERED IN BARNACLES, INDICATING THE 

GEAR HAS BEEN ON THE WHALE FOR SOME TIME. 

CONSTRICTING ENTANGLEMENT. TRAILING AT LEAST 

TWO BUOYS. WHALE DISENTANGLEMENT TEAM 

REMOVED MOST GEAR ON 7/29/2017 IN SOUTHERN CA 

WATERS (=RESCUE). WHALE WAS SUBSEQUENTLY 

SEEN, GEAR FREE, SWIMMING AND TAIL-SLAPPING ON 

7/30/2017 OFF SOUTHERN CALIFORNIA. WHALE APPEARS 

TO BE IN GOOD HEALTH WITH EXCEPTION OF 

ENTANGLEMENT INJURY, WHICH APPEARS PINK IN 

COLOR. GIVEN SEVERITY OF INJURY, SURVIVAL OF 

WHALE IS UNCERTAIN. FISHERY POSITIVELY-IDENTIFIED 

FROM RECOVERED GEAR TAG. PHOTOS / VIDEO 

REVIEWED BY J. CARRETTA. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 7 13 

WA/OR/CA 

SABLEFISH POT 

FISHERY AND CA 

COONSTRIPE 

SHRIMP POT 

FISHERY 

DEL NORTE CA SI 

ENTANGLEMENT INVOLVED 25 FT JUVENILE HUMPBACK 

WHALE TRAILING 400 YARDS OF LINE. SEVERAL SETS OF 

FIXED FISHING GEAR WRAPPED AROUND THE TAIL 

FLUKES, THE PECTORAL FINS, AND THE MOUTH. WHALE 

INITIALLY ENTANGLED IN SABLEFISH ANCHOR GEAR AND 

THEN DRAGGED THAT GEAR THROUGH SHRIMP GEAR, 

SO TWO FISHERIES WERE INVOLVED. THE GEAR HAD 

ANCHORED THE WHALE IN PLACE AND ANIMAL WAS 

UNABLE TO LIFT ITS FLUKES. DISENTANGLEMENT TEAM 

WORKED WITH LOCAL FISHERMEN IN A CAREFULLY 

PLANNED OPERATION TO HAUL UP SOME OF THE HEAVY 

GEAR WEIGHING DOWN THE TAIL. THAT CREATED 

ENOUGH SLACK TO LET THE WHALE SURFACE, 

ALLOWING THE TEAM TO MAKE THE NECESSARY CUTS 

TO REMOVE ALL THE ENTANGLING GEAR FROM THE 

WHALE. SHORT VIDEO POST-RELEASE SHOWS WHALE 

SWIMMING SLOWLY AT SURFACE. APPARENT BODY 

CONDITION APPEARS HEALTY FROM PHOTOS. 

DESIGNATED AS A NON-SERIOUS INJURY DUE TO 

RESCUE / INTERVENTION AND COMPLETE REMOVAL OF 

GEAR. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2017 7 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

THICK BLUE LINE DEEPLY EMBEDDED BEHIND 

BLOWHOLE AND A WRAP OF LEFT PECTORAL FLIPPER, 

CONNECTING TO MOUTH. THE EMBEDDED LINE HAS CUT 

INTO THE BLUBBER LAYER OF THE WHALE. LINE 

AROUND LEFT FLIPPER HAS AN X-SHAPED 

CONFIGURATION AROUND BASE OF FLIPPER, 

INDICATING A CONSTRICTING WRAP. ANIMAL 

DESCRIBED AS AGITATED AND BREACHING, WITH TAIL 

SLAPPING BEHAVIOR. ANIMAL RESIGHTED 8/19/2017, 

STILL ENTANGLED. FINAL OUTCOME UNKNOWN. . 

SI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2017 8 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

TWO LINES; ONE ACROSS OR JUST IN FRONT OF BLOW 

HOLE, ONE CLOSE BEHIND THE BLOWHOLE ON HEAD; 

SIGNIFICANT ABRASIONS NOTED ON UNDERSIDE OF 

TAIL STOCK AND LEADING EDGE OF THE FLUKE. WHALE 

WAS EMACIATED. GEAR AMOUNT AND CONFIGURATION 

UNKNOWN, BUT SERIOUS INJURY DUE TO APPARENT 

HEALTH DECLINE OF WHALE. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 8 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

COOS OR SI (PRORATE)

ENTANGLEMENT INVOLVED THE RIGHT FLIPPER AND 

THE TAIL, WITH LINE TRAILING TO TWO WHITE BUOYS 

ABOUT 50 TO 100' BEHIND THE WHALE. LINE WAS ALSO 

OBSERVED DESCENDING TOWARDS THE SEAFLOOR. 

EST - 3/8" LINE - LIGHT COLOR; DESCRIPTION DEEMED 

SPECIFIC AND DETAILED ENOUGH, COMING FROM A 

PROFESSIONAL MARINER, TO WARRANT CONFIRMATION 

EVEN THOUGH PHOTO IS OF LOW QUALITY AND DOES NOT PROVIDE EVIDENCE OF ENTANGLEMENT. SINGLE 

PHOTO REVIEWED BY J. CARRETTA, WHICH DOES NOT 

SHOW ENOUGH OF WHALE OR CONTEXT FOR FURTHER 

ASSESSMENT. GEAR AMOUNT AND CONFIGURATION 

UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2017 9 3 POT FISHERY, TRIBAL SAN DIEGO CA SI 

VIDEO SHOWS MOTIONLESS WHALE WITH HIGH CYAMID 

LOAD. LINE COMING OUT OF RIGHT SIDE OF MOUTH 

AND ANOTHER PIECE ON RIGHT PECTORAL FLIPPER. 

DEEP LACERATION ON HEAD OF WHALE JUST ANTERIOR 

TO BLOWHOLE AND ANOTHER DEEP LACERATION ON 

THE RIGHT FLIPPER. GEAR RECOVERED BY MEMBERS 

OF THE PUBLIC AND EVENTUALLY IDENTIFIED AS 

WASHINGTON STATE TRIBAL DUNGENESS POT GEAR. 

SURVIVAL OF WHALE DOUBTFUL BASED ON HEALTH 

DECLINE. VIDEO REVIEWED BY J. CARRETTA. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 9 20 

UNIDENTIFIED 

FISHERY 

INTERACTION 

ORANGE CA SI (PRORATE) 

DISTANT PHOTOS OF BREACHING HUMPBACK SHOW 

BLUE/GREEN LINE UNDERNEATH BASE OF LEFT 

PECTORAL FLIPPER AND THROUGH BOTH SIDES OF 

MOUTH. ANIMAL APPEARED TO BE IN GOOD HEALTH. 

GEAR AMOUNT AND CONFIGURATION UNKNOWN. . 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2017 10 2 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

LINE ACROSS BACK IN FRONT OF DORSAL FIN, 

STARTING TO BECOME EMBEDDED. RECENT PHOTO OF 

WHALE FROM 9/4 SHOWS WHALE WITHOUT 

ENTANGLEMENT, SO THIS IS A RELATIVELY RECENT 

ENTANGLEMENT. THERE ARE TWO LINES TRAILING 

BEHIND THE FLUKES. ONE GOES ABOUT 2/3RDS BODY 

LENGTH BACK AND IS RUNNING FREE, THE OTHER 

ALMOST EXACTLY THE WIDTH OF THE FLUKES WITH 

TWO OBJECTS ATTACHED ONE OF WHICH IS LIKELY A 

BULLET BUOY AT THE END AND THE OTHER IS 

FLATTENED AND FISHES IN THE CURRENT. THE LATTER 

MAY BE A WAD OF LINE AROUND ANOTHER BUOY. THE 

TWO LINES ARE FAIRLY SEPARATED BUT TWIST CLOSE 

TO THE FLUKES AND PROBABLY ARE TWISTED UNDER 

THE BODY. BECAUSE TWO LINES WERE DETECTED 

TRAILING THE ANIMAL IT IS THOUGHT THAT THERE IS NO 

TRAP ATTACHED. EVIDENCE OF LINE EMBEDDING IN 

WHALE WARRANTS A SERIOUS INJURY UNDER 

CATEGORY L2 (CONSTRICTING ENTANGLEMENT). THE 

LINE OVER THE BACK IS NOT THAT TIGHT. (SLIDE 

BETWEEN 39 SEC AND 40 SEC TO SEE THAT IT IS LOOSE 

ENOUGH ON THE LEFT SIDE TO SLIDE ANTERIORLYPOSTERORILY.) BUT RUNS ANTERIORLY AND DOWN. 

THAT IT LOOPS OVER THE BACK AND RUNS FORWARD 

SUGGESTS TO ME THAT THE FLIPPERS MAY BE 

CONSTRAINED OR IT TWISTS UNDERNEATH, AND IT 

RUNS PROBABLY THROUGH THE MOUTH. THE RIGHT 

SIDE RUNS MORE ACUTELY TOWARDS THE RIGHT PEC. 

IT MAY RUN UNDER THE RIGHT PEC THEN TO THE GAPE 

OF THE MOUTH. THE LEFT SIDE RUNS MORE STRAIGHT 

DOWN AND I SUSPECT IS TWISTED UNDERNEATH 

BEFORE RUNNING FORWARD. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 10 6 GILLNET FISHERY SAN JUAN WA SI (PRORATE) 

WELL-MARKED WHALE INITIALLY SEEN WITH GREEN 

GILLNET AROUND ROSTRUM AND THROUGH MOUTH 

NEAR SAN JUAN ISLAND. WHALE SEEN SEVERAL TIMES 

THEREAFTER, AS LATE AS DECEMBER 2017. TEAM 

APPROACHED WHALE AND TOOK PHOTOS AND VIDEO 

AND COULD NOT FIND ANY REMAINING GILLNET. ANIMAL 

IS THOUGHT TO HAVE SELF-RELEASED FROM GEAR. 

ORIGINAL GEAR CONFIGURATION AND AMOUNT IS 

UNKNOWN. WHALE RESIGHTED ON 10/8/2018 GEAR 

FREE. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2017 11 25 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

ORANGE LINE AROUND TORSO FORWARD OF ITS 

DORSAL FIN, ORANGE AND GREEN LINE REPORTED BY 

FISHERMAN, TRAILING 40-50 FEET OF LINE BEHIND, 

ANIMAL SELF-RELEASED, APPROACHED AND 

PHOTOGRAPHED / VIDEO BY P. STAPP. VIDEO SHOWS 

WHALE FREE OF GEAR AND WITHOUT APPARENT 

INJURY, IN THE COMPANY OF ANOTHER HUMPBACK. 

NSI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2017 12 6 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI 

ANCHORED WITH BODY WRAP, ANIMAL NOT FLUKING. AT 

LEAST TWO WRAPS AROUND CAUDAL PEDUNCLE AND 

LINES EXTENDING TOWARDS FLIPPERS LOW ON BOTH 

SIDES OF BODY. MULTIPLE WRAPS. ONE GREEN LINE 

AND 1 RED LINE CLEARLY RUNNING FROM TANGLE OF 

BUOYS OVER BODY TOWARD HEAD/MOUTH. GEAR 

SHIFTS AS WHALE SURFACES; 2 WHITE BULLET BUOYS 

WITH GREEN ENDS PLUS LIGHT BLUE BUOY TAGLICENSE NUMBER USED TO CONFIRM FISHERY. 5 BUOYS 

TOTAL AND A TANGLE OF LINES. AT LEAST 3 SETS 

INVOLVED. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2017 12 29 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

MEXICO MX SI 

GREEN LINE WRAPPED TWICE AROUND BODY BEHIND 

HEAD AND FORWARD OF DORSAL HUMP. 2 

ORANGE/YELLOW BUOYS TRAILING, BUOYS HAVE WHAT 

APPEARS TO BE A ROUND, PURPLE TAG (CONSISTENT 

WITH WA DUNGENESS CRAB). LINES APPEAR TO BE 

SNUGLY WRAPPED AROUND BODY AND AT LEAST ONE 

INDENTATION FROM LINE IS EVIDENT ON BODY. 

OBSERVERS WERE NOT ABLE TO RELOCATE WHALE, 

WHICH OTHERWISE LOOKED HEALTHY. MULTIPLE 

WRAPS AND CONSTRICTING ENTANGLEMENT. AMOUNT 

AND CONFIGURATION OF GEAR UNKNOWN. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 4 29 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

GRAYS 

HARBOR WA SI (PRORATE) 

PHOTOS SHOW WHALE WITH LINES AND MULTIPLE 

BUOYS TRAILING BEHIND AND OVER DORSAL ASPECT 

OF WHALE. YELLOW OVAL TAGS VISIBLE ON TWO BUOYS 

(1 ON EACH). REPORTING PARTY NARRATIVE AND 

PHOTOS SHOW EVIDENCE OF A WHALE THAT IS 

ANCHORED. CHARTER VESSEL MADE UNAUTHORIZED 

ATTEMPT TO REMOVE GEAR FROM WHALE. AMOUNT 

AND CONFIGURATION OF GEAR REMAINING ON WHALE 

IS UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 5 13 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

CA SI (PRORATE)

TWO LARGE WHALES THAT APPEARED TO BE 

"ENTANGLED TOGETHER" 8.5 MILES OUTSIDE OF 

GOLDEN GATE BRIDGE. ENTANGLEMENT WAS 

DESCRIBED AS 4 BUOYS, 2 SETS OF "CRAB POT BUOYS" 

WRAPPED AROUND MAIN PART OF ONE OF THE 

WHALES. NO RESIGHTS. BASED ON NARRATIVE, ONLY 

ONE WHALE IS CONFIRMED ENTANGLED, THOUGH TWO 

MAY HAVE BEEN PRESENT AND IN CLOSE PROXIMITY. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 5 14 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI 

SINGLE WRAP OF GREEN/BLUE LINE BEHIND BLOWHOLE 

AND IN FRONT OF DORSAL FIN. LINE IS SNUGLY AROUND 

ANIMAL. FREE-SWIMMING ANIMAL RESIGHTED NEXT 

DAY, OUTCOME UNKNOWN. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. CONSTRICTING 

ENTANGLEMENT BECAUSE LINE IS TIGHT AROUND 

ANIMAL. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 5 16 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) FREE-SWIMMING WHALE TRAILING 2 WHITE BUOYS APPROXIMATELY 70 FT. BEHIND FLUKES. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 5 17 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

GRAYS

HARBOR WA DEAD 

GREEN AND WHITE LINE WRAPPED TIGHTLY AROUND 

LEFT PECTORAL, PASSING THROUGH LEFT GAPE. 

EVIDENCE OF A WRAP AROUND THROAT (BLOATING 

LIKELY CAUSED ROPE TO SNAP, FRAYED ENDS VISIBLE. 

GREEN, ORANGE, AND WHITE LINES WRAPPED AROUND 

TAILSTOCK. FAINT IMPRESSIONS ACROSS VENTRAL 

LEFT FLUKE. TRAILING 2 CRAB POTS. ORIGINALLY SEEN 

WITH 2 ORANGE BUOYS (WHILE FLOATING), ONE VISIBLE 

IN INITIAL PHOTOS OF THE BEACH LANDING, BUT HAD 

BEEN REMOVED BY UNKNOWN PERSONS PRIOR TO 

EXAMINATION. WCR REPORTS THAT GEAR INCLUDED 

BOTH WA STATE AND TRIBAL FISHERIES. EVIDENCE OF 

CONSTRICTING WRAP. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 5 23 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI 

MULTIPLE BUOYS AND LINES WRAPPED SNUGLY 

AROUND THE TAILSTOCK AREA OF THE FLUKES. 

MULTIPLE WRAPS WITH CONSTRICTING LINE. AT LEAST 

TWO SETS OF GEAR INVOLVED IN THE ENTANGLEMENT, 

WITH CALIFORNIA AND OREGON TAGS PRESENT. MASS 

OF LINES ON DORSAL SIDE OF FLUKE WITH LINE 

WRAPPING UNDERNEATH THE TAILSTOCK AND COMING 

BACK OVER TOP ON BOTH FLUKE BLADES AND MEETING 

AT LARGE MASS IN CENTER OF FLUKE. GEAR MASS AND 

DRAG POTENTIAL WARRANT THIS CASE BEING 

DESIGNATED A SERIOUS INJURY UNDER CRITERIA L2. . 

TELEMETRY BUOYS WERE ATTACHED BY WHALE 

DISENTANGLEMENT TEAM, BUT DID NOT REMAIN ON 

WHEN WHALE DOVE. FISHERMAN WAS INTERVIEWED 

AND HAD BEEN FISHING NEAR CRESCENT CITY NEAR 

TIME OF ENTANGLEMENT. FINAL OUTCOME UNKNOWN. 

SI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 5 27 

DUNGENESS CRAB 

POT FISHERY 

(COMMERCIAL) 

MONTEREY CA SI 

TWISTED RED/ORANGE LINE (HYDROPRO) WRAPPED 

TIGHTLY TWICE AROUND BODY, FORWARD OF DORSAL 

FIN. ABRAIDED AND INDENTED SKIN VISIBLE FROM 

DRONE FOOTAGE FORWARD OF ROPE, EVIDENCE THAT 

ROPE HAD MOVED BACKWARDS ON BODY TO CURRENT 

POSITION. PECTORAL FLIPPERS NOT VISIBLE FROM 

CLEAR DRONE FOOTAGE. ONE BUOY (WHITE WITH 

BLACK ON LAST 2/3 OF BUOY) WITH YELLOW 

DUNGENESS CRAB TAG, POTENTIALLY PINNING RIGHT 

PECTORAL FLIPPER TO BODY (FROM DRONE FOOTAGE). 

SERIOUS INJURY UNDER L2 CRITERIA DUE TO 

CONSTRICTING GEAR AND MULTIPLE WRAPS THAT MAY 

BE PINNING PECTORAL FLIPPERS. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 6 29 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

SAN MATEO CA SI (PRORATE) 

WHALE WITH LINE AROUND FLUKES WITH YELLOW AND 

ORANGE BUOYS AT SURFACE TRAILING ABOUT 50 

YARDS BEHIND WHALE. BUOYS MOVING IN SAME 

DIRECTION AS WHALE AND GOING UNDERWATER WHEN 

WHALE DOVE. BUOYS NOT SEEN IN SAME LOCATION 

LATER IN THE DAY. 3 BUOYS (POTENTIALLY 4) -- 1 TRICOLORED WITH ORANGE AND PINK/ RED WITH BLACK 

STRIPE IN MIDDLE WITH POSSIBLE DUNGENESS CRAB 

FISHERY TAG. 1 ALL ORANGE WITH SILVER OR WHITE 

REFLECTIVE TAPE STRIPE IN MIDDLE WITH POSSIBLE 

PINK TAG. 1 THAT IS HARD TO TELL IF ONE OR TWO BUT 

YELLOW/ORANGE IN COLOR. POTENTIAL RESIGHT IN 

MEXICO IN DECEMBER 2018- PHOTOS OF GEAR MATCHFOLLOWING UP WITH RP FROM MEXICO. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. ONE POORQUALITY PHOTO REVIEWED BY J. CARRETTA. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 7 2 GILLNET FISHERY LOS ANGELES CA DEAD 

BLUE MESH GILLNET THAT HAS A STRETCH DIAMETER 

OF JUST UNDER 12", SMALLER THAN THAT USED IN 

LARGE MESH GILLNET FISHERY. TEN FLOATS ON 

YELLOW TWISTED POLYPRO LINE (SOME FLOATS WERE BLACK, SOME WERE WHITE); LEAD LINE W/ LEADS ALSO 

IN TANGLED MASS. VERY SEVERE ENTANGLEMENT THAT 

HAS BEEN ON THIS WHALE FOR SOMETIME AS 

INDICATED BY THE DEEP WOUNDS AND HEAVY CYAMID 

LOAD THAT IS COVERING A LOT OF THE DORSAL 

SURFACE OF THE BODY. MULTIPLE WRAPS OF GILLNET, 

ROPE, AND FLOAT FORMING TIGHT NEST AROUND 

PEDUNCLE AND FLUKES. CONSTRICTING 

ENTANGLEMENT AND HEALTH DECLINE. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 7 7 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

GRAYS 

HARBOR WA SI (PRORATE) 

HUMPBACK TRAILING A SINGLE ORANGE AND WHITE 

BUOY, POSSIBLY ATTACHED TO LEFT PECTORAL 

FLIPPER. EXTENT OF ENTANGLEMENT AND AMOUNT OF 

GEAR UNKNOWN. . 

SI

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 7 12 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MONTEREY CA SI (PRORATE)

EMACIATED ADULT COW ENTANGLED WITH ATTENDENT 

CALF. LINE COMING OUT BOTH SIDES OF THE MOUTH. 

LEFT SIDE GOES UNDER THE PECTORAL FLIPPER AND 

HAS THREE BUOYS WITH THE FIRST AT ABOUT THE 

DORSAL FIN, THE THIRD JUST AT THE LEADING EDGE OF 

THE FLUKE. LINE COMING OUT RIGHT SIDE OF MOUTH 

GOES UNDER RIGHT PECTORAL FLIPPER AND 

DISAPPEARS AND MAY HAVE SOME WEIGHT (POT) ON 

THE END. ALL THREE BUOYS ORANGE COLORED AND 

HAVE SIGNIFICANT ALGAL GROWTH, INDICATING 

ENTANGLEMENT IS NOT RECENT. YELLOW DUNGENESS 

CRAB POT TAG ON BUOY CLOSEST TO WHALE. FINAL 

OUTCOME UNKNOWN. PRORATED SERIOUS INJURY 

WITH VALUE = 1 DUE TO EMACIATED CONDITION AND 

HEALTH DECLINE. . 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 7 12 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MONTEREY CA SI 

DEPENDENT CALF OF ENTANGLED AND SERIOUSLYINJURED MOTHER. ASSUMPTION UNDER L8 IS THAT 

DEPENDENT CALF NOT LIKELY TO SURVIVE. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 7 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MENDOCINO CA SI (PRORATE) 

MULTIPLE WRAPS OF BLUE/GRAY LINE AROUND BODY 

WITH A RED BULLET BUOY THAT FORMED A 'BIRD'S 

NEST' OF GEAR ON DORSAL ASPECT OF WHALE 

BETWEEN DORSAL FIN AND FLUKES. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 7 18 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MEXICO MX DEAD 

DEAD HUMPBACK WHALE STRANDED IN MEXICO WITH 

CALIFORNIA COMMERCIAL DUNGENESS CRAB GEAR 

ENTANGLEMENT. PHOTOS SHOW LINE, 2 BUOYS, AND 

YELLOW SHIELD TAG WITH NUMBER. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 7 28 GILLNET FISHERY, TRIBAL CLALLAM WA SI (PRORATE) 

TRIBAL FISHERMAN ENTANGLED HUMPBACK WHALE IN 

GILLNET IN TREATY FISHERY. THREE HOURS LATER, THE 

FISHERMAN REMOVED AS MUCH GEAR AS POSSIBLE 

AND THOUGHT THAT SOME LEADLINE GEAR STILL 

REMAINED ON CAUDAL PEDUNCLE. PHOTOS OF WHALE 

SHOW IT THRASHING ITS FLUKES. AMOUNT AND 

CONFIGURATION OF GEAR REMAINING ON WHALE 

UNKNOWN. . 

SI

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 7 30 

UNIDENTIFIED 

FISHERY 

INTERACTION 

DOUGLAS OR SI (PRORATE)

BRIDLE THROUGH MOUTH THAT COMES TO A KNOT 

FORWARD OF DORSAL HUMP. TRAILING LINE APPEARS 

TO TERMINATE NEAR THE FLUKES AND SWITCHES FROM 

THE LEFT TO RIGHT SIDE OF THE BODY. THERE IS ALSO 

A SHORT LOOP OF LINE EMANATING FROM THE KNOT FORWARD OF THE DORSAL. THE FLIPPERS / FLUKES / 

TAILSTOCK ARE NOT INVOLVED. WHALE TRAVELING AND 

FLUKING AT MODERATE SPEED WITH ANOTHER 

HUMPBACK. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 8 3 GILLNET FISHERY CLALLAM WA NSI 

WHALE WITH GILLNET MESH ATTACHED TO RIGHT 

FLUKE TIP PHOTOGRAPHED ON 8/3/2018. ANIMAL WAS 

RESIGHTED ON 9/14/2018 BY MARINE MAMMAL LAB (JEFF 

HARRIS) AS FREE FROM GEAR, PHOTOS OF 

ENTANGLEMENT AND POST-ENTANGLEMENT EXAMINED 

BY J. CARRETTA. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2018 8 5 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

HUMBOLDT CA SI 

ANCHORED 25 FT. LONG JUVENILE HUMPACK FIRST 

REPORTED ON 8/5/2018 WITH LINE EMBEDDED IN 

DORSAL CAUDAL PENDUNCLE, WITH ASSOCIATED 

MASSIVE LACERATION NEARLY SEVERING FLUKES. 

RESEARCHERS ON R/V REUBEN LASKER SIGHTING 

WHALE DURING A LINE-TRANSECT SURVEY ON 8/7 AND 

CONTACTED CASCADIA RESEARCH. CASCADIA RESCUE 

TEAM WAS ABLE TO ATTACH TELEMETRY BUOY ON 

8/7/2018, WITH NOAA VESSEL REUBEN LASKER 

STANDING BY FOR ASSISTANCE. CASCADIA TEAM 

RETURNED ON 8/8/2018 AND REMOVED LINE AND BUOYS 

ATTACHED TO A CRAB POT AND WHALE SWAM OFF. 

GEAR WAS RECOVERED AND RETAINED. BASED ON 

PHOTOS, THE PROBABILITY OF THE WHALE LOSING ITS 

FLUKES IS SUBSTANTIAL. SERIOUS INJURY UNDER 

SERIOUS INJURY CRITERIA L2 AND SEVERITY OF 

DAMAGE TO CAUDAL PEDUNCLE. CONSTRICTING 

ENTANGLEMENT. HEALTH DECLINE. . 

SI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 8 6 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

GRAYS

HARBOR WA DEAD 

A COMMERCIAL FISHING VESSEL REPORTED A DEAD 

ENTANGLED HUMPBACK WHALE TO USCG. THE USCG 

FLEW OVER AND CONFIRMED. WHALE THROAT WAS 

DISTENDED FLOATING BELLY UP HIGH IN THE WATER. 

ORANGE BUOYS SEEN NEAR TAILSTOCK IN AERIAL 

PHOTOS, OBSERVERS FROM SHORE ON 07 AUG 

REPORTED SEEING BUOYS NEAR WHALE AND CARCASS 

APPEARED TO BE ANCHORED IN PLACE. ALL LINES AND 

BUOYS WERE REMOVED BEFORE OUR ARRIVAL. WE 

WERE ABLE TO CONFIRM THIS AS THE SAME ANIMAL 

REPORTED ON AUGUST 6TH USING PIGMENTATION ON 

THE PLEATS FROM BOTH SIGHTINGS. TWO DEEP 

IMPRESSIONS WITH A THREE-STRAND LINE PATTERN ON 

THE RIGHT PECTORAL AND LINE MARKS AND 

ABRASIONS AROUND TAIL STOCK AND PEDUNCLE 

INDICATED THAT THE WHALE HAD BEEN ENTANGLED 

RECENTLY. THE TEAM COLLECTED STILL 

PHOTOGRAPHS AND UNDERWATER IMAGES FROM A 

GOPRO MOUNTED ON A POLE. NECROPSY: THREE 

ADDITIONAL LINEAR ABRASIONS ACROSS THE FLUKE 

TOWARD THE PEDUNCLE. DEEP IMPRESSIONS INDICATE 

CONSTRICTING ENTANGLEMENT. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 8 11 GILLNET FISHERY, TRIBAL CLALLAM WA SI 

FISHERMAN PARTICIPATING IN SOCKEYE GILLNET 

TREATY FISHERY REPORTED ENTANGLING A WHALE ON 

8/11/2018. ESTIMATED TIME OF ENTANGLEMENT WAS 

2130 HRS LOCAL. WHALE WAS WRAPPED IN CORKLINE 

OF NET AND HAD PULLED JACKLIGHT AND FLAGPOLE 

UNDERWATER. FISHERMAN'S NARRATIVE NOTED WHALE 

WAS VERY WOUND UP IN NET. EXTENSIVE 

CONSTRICTING ENTANGLEMENT. WHALE DIED THE NEXT 

DAY, CARCASS SANK WITH GEAR. NO NECROPSY. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 8 11 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

SAN DIEGO CA SI 

ENTANGLED JUVENILE HUMPBACK SUFFERING A 

HEALTH DECLINE. ANIMAL'S BODY HAS PATCHES OF 

RUST-COLORED WHALE LICE. COLORATION OF SKIN 

APPEARS TO BE LIGHT / DULL, WITH SLOUGHING SKIN. 

YELLOW POLY LINE SEEN WRAPPED MULTIPLE TIMES 

AROUND PEDUNCLE, WHERE LINE IS EMBEDDED. 

MULTIPLE WRAPS AND CONSTRICTING ENTANGLEMENT. 

APPROXIMATELY 10 FT OF LINE TRAILING BEYOND 

FLUKES. LARGE AREAS OF ABRADED, RAW PINK SKIN 

RELATED TO ENTANGLEMENT. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 8 11 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

CURRY OR SI (PRORATE) TRAILING TWO BUOYS APPROXIMATELY 1 TO 2 BODY LENGTHS BEHIND ANIMAL. AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. SI (PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 8 12 GILLNET FISHERY, TRIBAL CLALLAM WA SI (PRORATE) 

REPORT OF A HUMPBACK WHALE TRAILING A CORKLINE 

AND CORKS. PHOTO SHOWS WHALE TRAILING GEAR 

THAT IS AT LEAST AS LONG AS WHALE. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 8 26 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN 

FRANCISCO CA SI (PRORATE) 

WHALE TRAILING 2 BUOYS, A MAIN BUOY (RED/ORANGE) 

AND A TRAILER BUOY (YELLOW), THE TRAILER WAS 

ABOUT 20FT BEHIND THE WHALE. THE ATTACHMENT 

POINT IS UNKNOWN, THE ANIMAL WAS OBSERVED 

FLUKE-UP DIVING, BUT NO GEAR WAS SEEN ON THE 

FLUKES DURING THE DIVES. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. . 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 8 30 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

CLALLAM WA SI (PRORATE) 

WHALE REPORTED ENTANGLED IN TWO COMMERCIAL 

CRAB POT BUOYS. (1 YELLOW AND 1 RED WITH A LOT OF 

GROWTH ON BOTH). THIS WAS WITNESSED FROM 200 

YARDS AWAY. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 9 4 

SPOT PRAWN 

TRAP/POT FISHERY 

(RECREATIONAL) 

MONTEREY CA SI 

SINGLE WRAP AROUND WHALE RIGHT AT THE TAIL 

STOCK WITH LINE APPEARING TO LOOP OVER ITSELF OR 

WRAP AROUND ITSELF UNDER THE FLUKES. WHITE 

BUOY AND ORANGE POLYBALL CLOSE TO ANIMAL FROM 

AERIAL PHOTOS. WHALE DESCRIBED AS ANCHORED IN 

PLACE WITH A FLATTENED BODY POSITION WITHOUT 

MUCH MOVEMENT. SKIN RAW AND RED/PINK ON DORSAL 

ASPECT ON CAUDAL PEDUNCLE. EXTENSIVE SCUFF 

MARKS ON HEAD AND DORSAL FIN AREA. EVIDENCE 

THAT GEAR HAD MIGRATED FROM FRONT TO REAR OF 

ANIMAL. THE WHALE BECAME AGITATED WHEN A 

DISENTANGLEMENT TEAM APPROACHED, AND AT THAT 

TIME, THE WHALE SHED THE GEAR ON ITS OWN. WHALE 

REMAINED IN AREA FOR 5 MINUTES, THEN SLOWLY 

STARTED SWIMMING AWAY, INCREASINGLY USING ITS 

FLUKES. FISHERY IDENTIFIED FROM RECOVERED GEAR. 

INTERVIEW WITH FISHERMAN INDICATED GEAR (WITH 3 

TRAPS) HAD BEEN SET THE PRIOR DAY. NON-SERIOUS 

INJURY DUE TO SHED GEAR AND SHORT TIME DURATION 

OF ENTANGLEMENT. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2018 9 17 

UNIDENTIFIED 

FISHERY 

INTERACTION 

CLATSOP OR SI (PRORATE) 

ENTANGLED IN LINE AND FLOATS, BUT NO DESCRIPTION 

OF WHERE ON ANIMAL. CONFIRMED BASED ON TWO 

INDEPENDENT SIGHTINGS FROM FISHERMEN. THE 

ANIMAL WAS UNABLE TO BE RELOCATED BY USCG. NO 

FURTHER SIGHTINGS. AMOUNT AND CONFIGURATION OF 

GEAR UNKNOWN. 

SI 

(PRORATE) 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 9 21 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

SAN DIEGO CA DEAD 

DEAD HUMPBACK CALF FOUND DURING CCES 2018 

MARINE MAMMAL CRUISE. WHALE HAD LINE AND BUOYS 

WRAPPED AROUND TAIL. FISHERY CONFIRMED FROM 

TAG ON BUOY. . 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2018 9 27 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN LUIS 

OBISPO CA SI 

HUMPBACK NOT MOVING MUCH WITH CONSTRICTING 

LINE BETWEEN HEAD AND DORSAL FIN, POSSIBLY 

ANCHORED. LINE IS INDENTING INTO SKIN AND OTHER 

INDENTATION MARKS ARE SEEN FROM WHERE LINE HAS 

MIGRATED TOWARDS REAR OF WHALE. PRIVATE 

VESSEL INSTRUCTED PASSENGER TO JUMP INTO 

WATER AND CLIMB ON TOP OF WHALE TO CUT LINE 

AWAY. UNAUTHORIZED DISTENTANGLEMENT EVENT. 

WHALE DANGEROUSLY THRASHED ITS FLUKES UPON 

THIS INTERACTION AND APPEARED TO SWIM OFF AFTER 

CITIZEN CUT LINE. UNKNOWN IF ALL GEAR WAS 

REMOVED, THIS IS CONSIDERED A PARTIAL 

DISENTANGLEMENT. AMOUNT AND CONFIGURATION OF 

GEAR UNKNOWN. VIDEO REVIEWED BY J. CARRETTA. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 9 29 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA NSI 

HUMPBACK CALF WITH BLUE/GREEN LINE TRAILING 40-

50 FEET WITH THREE BUOYS (GREEN/WHITE) ATTACHED 

TO RIGHT PECTORAL FLIPPER. GREEN CA DUNGENESS 

CRAB TAG SEEN ON THE FIRST BUOY. BASED ON AERIAL 

PHOTOS, LINE MAY BE ATTACHED TO UNDERSIDE OF 

FLIPPER. WHALE OTHERWISE IN GOOD HEALTH AS 

SHOWN IN PHOTOS. ACCOMPANIED BY MOTHER. . 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2018 9 30 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

SAN LUIS 

OBISPO CA SI (PRORATE) 

LINE ATTACHED TO WHALE AT UNKNOWN LOCATION 

AND CONFIGURATION WITH A RED AND WHITE BUOY ON 

THE SIDE OF THE WHALE NEAR THE PECTORAL FLIPPER. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

REPORTING PARTY DESCRIBED AS CRAB POT GEAR. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2018 9 30 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

SAN LUIS 

OBISPO CA SI (PRORATE) 

WHALE TRAILING 3 BUOYS TOTAL. 1 "CRAB STYLE" 

LARGER BUOY WITH 2 SMALLER BUOYS. REPORTING 

PARTY THOUGTHT THEY MAY HAVE ALL BEEN WHITE OR 

HAD SOME WHITE ON THEM BUT COULDN'T REMEMBER 

FOR SURE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. DIFFERENTIATED FROM OTHER 9/30/2018 

ENTANGLEMENT IN SAME AREA BY NUMBER AND COLOR 

OF BUOYS. 

SI 

(PRORATE) 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

MULTIPLE WRAPS OF LINE EMBEDDED DEEPLY AT 

FLUKE INSERTION WITH 400 FEET OF TRAILING LINE. 

CONSTRICTING ENTANGLEMENT. WHALE HAD SEVERAL 

LARGE PATCHES OF ORANGE-COLORED CYAMIDS, 

HUMPBACK 

WHALE CA-OR-WA 2018 10 12 

DUNGENESS CRAB 

POT FISHERY 

(OREGON) 

SAN MATEO CA SI 

INDICATING A HEALTH DECLINE. INITIAL 

DISENTANGLEMENT RESPONSE REMOVED 

APPROXIMATELY 350 FEET OF TRAILING LINE. A 2ND 

DISTENTANGLEMENT EFFORT REMOVED MOST OF THE 

SI 

LOOSE GEAR, BUT EMBEDDED LINE REMAINED. FISHERY 

POSITIVELY-IDENTIFIED FROM PERMIT TAG ON 

RECOVERED GEAR. PHOTOS / VIDEO REVIEWED BY J. 

CARRETTA. 

HUMPBACK CA SPOT PRAWN SI CA-OR-WA 2018 10 12 MONTEREY CA WHALE TRAP FISHERY (PRORATE) 

HUMPBACK CA-OR-WA 2018 10 13 VESSEL STRIKE MARIN CA DEAD WHALE 

HUMPBACK CALF ENTANGLED IN CONFIRMED 

COMMERICAL SPOT PRAWN GEAR WHICH WAS SET 2 

DAYS PRIOR TO OBSERVATION AND PARTIAL RELEASE 

BY FISHERMAN. LARGE ORANGE BUOY NEAR FORWARD 

PART OF THE BODY WITH UNKNOWN ATTACHMENT 

POINT, LIKELY MOUTH OR PECTORAL FLIPPERS. FADED 

YELLOW BUOY TRAILING ABOUT 30FT BEHIND. BOTH 

ONLY VISIBLE WHEN SURFACING. FISHERMEN WINCHED 

UP CALF TO SIDE OF THE BOAT TO MAKE 

DISENTANGLEMENT CUTS. VERTICAL ASPECT PHOTO 

SHOWS LINE AND BUOY STILL ON TAIL AFTER REMOVED 

FROM GROUNDING LINE. NO FURTHER ACTION TAKEN 

AS WHALE SWAM OFF. AMOUNT AND CONFIGURATION 

OF REMAINING GEAR UNKNOWN. 

SI 

(PRORATE) 

NECROPSY FINDINGS. WHALE WAS IN GOOD BODY 

CONDITION, A BIT THIN, BUT WITH ADEQUATE BLUBBER 

LAYER. THERE WERE AREAS OF HEMORRHAGE OVER 

THE DORSAL SURFACE OF THE CRANIUM AND ON THE 

DORSAL THORAX IMMEDIATELY CRANIAL TO THE 

DORSAL FIN AND EXTENDING TOWARDS THE CRANIUM. 

THE VERTEBRAE AND VERTEBRAL DISKS WERE 

DISBURSED THROUGHOUT THE BODY, MANY OF WHICH DEAD 

HAD PERIOSTEAL DISCOLORATION (BONE BRUISING). 

THE RIBS WERE INTACT BUT ALSO HAD SIMILAR BONE 

BRUISING. THE LEFT SCAPULA WAS FOUND 3 METERS 

AWAY FROM THE BODY WITH FRACTURES AND BONE 

BRUISING. THE CRANIUM HAD BONE BRUISING ON THE 

DORSAL SURFACE AND FRACTURES ON THE 

PARAOCCIPITAL PROCESSES, AND OTIC BULLA. 

UNIDENTIFIED REPORTING PARTY NOTED 2 ORANGE CRAB POT BUOYS HUMPBACK SI SI CA-OR-WA 2018 10 15 POT/TRAP FISHERY MENDOCINO CA NEAR THE TAIL OF THE WHALE. AMOUNT AND 

WHALE (PRORATE) (PRORATE) ENTANGLEMENT CONFIGURATION OF GEAR UNKNOWN. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2018 11 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

PHOTOS SHOW WHALE WITH LARGE DIAGONAL, 

NARROW-DIAMETER WOUND BETWEEN DORSAL HUMP 

AND BLOWHOLE. ORIENTATION OF WOUND IS FROM 

DORSAL SURFACE, EXTENDING DIAGONALLY TOWARDS 

REAR AND VENTRUM OF WHALE, CONSISTENT WITH A 

CONSTRICTING LINE EXPERIENCING DRAG. 

INDENTATION AND LARGE AREAS OF BODY COVERED 

WITH CYAMIDS, INDICATING A HEALTH DECLINE. 

PHOTOS INCONCLUSIVE ON WHETHER LINE IS STILL 

EMBEDDED IN WHALE, BUT INJURY IS CONSISTENT WITH 

CONSTRICTING ENTANGLEMENT. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 11 4 

UNIDENTIFIED 

POT/TRAP FISHERY 

ENTANGLEMENT 

MONTEREY CA NSI 

LOOSE DRAPED TRAILING LINE (30 FEET) WITH NO 

APPARENT TENSION AND SINGLE RED AND WHITE BUOY 

APPEAR TO BE LOOSELY CONNECTED TO UNDERSIDE 

OF FLUKES, PERHAPS ATTACHED VIA BARNACLES. 

WHALE FREE-SWIMMING. . 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2018 11 17 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA SI

TIGHT WRAP OR WRAPS RIGHT AT THE FLUKE 

INSERTION WITH SHORT GREEN LINE TRAILING 

UNDERNEATH FLUKE AND TWO BUOYS APPROX 3 FEET 

BEHIND THE FLUKES AND ONLY COME TO THE SURFACE 

WHEN WHALE IS FLUKE UP DIVING. LACERATION IN 

FLUKE REGION EVIDENT FROM . EVIDENCE OF 

CONSTRICTING WRAP. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2018 12 3 

DUNGENESS CRAB 

POT FISHERY 

(CALIFORNIA) 

MARIN CA SI (PRORATE) 

MULTIPLE WRAPS OF LINE OVER / AROUND BODY IN 

FRONT OF THE DORSAL FIN WITH EVIDENCE THE GEAR 

HAS MOVED FROM BACK DUE TO ABRASIONS WITH 

ASSOCIATED SKIN DISCOLORATION. TWO BUOYS NEXT 

TO THE BODY NEAR THE WRAPS. AMOUNT AND 

CONFIGURATION OF GEAR UNKNOWN. POOR-QUALITY . 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2019 3 24 

UNIDENTIFIED 

FISHERY 

INTERACTION 

VENTURA CA SI (PRORATE) 

SINGLE ORANGE POLYBALL TRAILING FROM SWIMMING 

WHALE. BALL SUBMERGES WHEN WHALE DIVES. 

PHOTOS SHOW WHALE LIFTING FLUKES OUT OF WATER. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2019 4 14 

DUNGENESS CRAB 

POT FISHERY 

(OREGON) 

MEXICO MEXICO SI (PRORATE)

WHALE REPORTED IN LORETO MEXICO TRAILING ONE 

YELLOW BULLET BUOY WITH ODFW TAG AND TWO 

YELLOW TRAILER BUOYS 10 TO 20 FEET BEHIND WHALE. 

GEAR HAD BEEN SET NEAR COOS BAY, OREGON, DATE 

NOT GIVEN. ENTANGLEMENT WAS ON TAILSTOCK WITH 

SCARRING ON CAUDAL PEDUNCLE. WHALE 

DISENTANGLED IN MEXICO. PHOTOS OF RECOVERED 

GEAR REVIEWED BY J. CARRETTA. FULL GEAR AMOUNT 

AND CONFIGURATION UNKNOWN. UNCONFIRMED IF ALL 

GEAR REMOVED. 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2019 5 5 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA 

BARBARA CA SI (PRORATE) WHITE FLOATING LINE TRAILING 40 FEET BEHIND WHALE. GEAR AMOUNT AND CONFIGURATION UNKNOWN. SI (PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2019 5 28 VESSEL STRIKE KING WA SI 

VESSEL STRIKE AT 20:18 LOCAL TIME. A JUVENILE 

HUMPBACK WHALE SURFACED APPROX 5 FT IN FRONT 

OF BOW OF 460 FOOT LONG CAR AND PASSENGER 

FERRY THAT WAS ACCELERATING. SPEED ASSUMED TO 

BE 5 KTS OR MORE, BASED ON TIME AND LOCATION OF 

TRANSIT. MULTIPLE PASSENGERS FELT A THUMP AND 

REPORTED LARGE AMOUNTS OF BLOOD AND OBSERVED 

WHALE FOR SEVERAL MINUTES OF STRUGGLING AT THE 

SURFACE. THEN THE ANIMAL DISAPPEARED AT APPROX 

20:30PM. THE WSF CAPTAIN CONFIRMED THE STRIKE OF 

THE WHALE. USCG CONDUCTED SEARCHES BUT WERE 

UNABLE TO RELOCATE CARCASS. PHOTO PROVIDED BY 

THE WSF CAMERAS CONFIRM SPECIES AND AGE CLASS 

ESTIMATE. BASED ON ACCOUNTS OF "FOUNTAINS OF 

BLOOD", THE SIZE (460 FT) AND SPEED (5 KTS OR 

GREATER) AND THE SIZE OF THE WHALE, THIS WAS 

LIKELY A FATAL STRIKE. NATIONAL DATABASE 

REFERENCE NW-2019-1211867. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2019 6 29 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

CLALLAM WA SI (PRORATE) 

WDFW WARDENS DESCRIBED A WHALE ENTANGLED 

WITH TWO WA STATE DUNGENESS CRAB BUOYS 

AROUND TAIL. PHOTOS SHOW ONE OR MORE BUOYS AT 

SURFACE APPROXIMATELY 20-30 FEET BEHIND DORSAL 

HUMP. GEAR AMOUNT AND CONFIGURATION UNKNOWN. 

. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2019 7 9 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

MARIN CA SI 

PHOTOS SHOW ENTANGLEMENT WITH TIGHT WRAP 

AROUND TAILSTOCK WITH LINE THAT IS DEEPLY 

CUTTING INTO THE WHALE. WHALE APPEARS 

ANCHORED IN PLACE. CONSTRICTING ENTANGLEMENT. 

PHOTOS ALSO SHOW RECOVERED TRAP TAGS. 

ENTANGLEMENT APPEARS TO BE CAUGHT UP IN THE 

MOORING LINE OF THE UCSD CDIP BUOY THAT IS IN THE 

AREA. 3 BUOYS AND BLUE POLY LINE + CDIP BUOY SEE 

ATTACHED PHOTO OF MOORING; 3 BUOYS WOULD 

INDICATE AN OFFSHORE SET. WHALE PARTIALLY 

DISENTANGLED BY CASCADIA RESEARCH WITH SMALL 

AMOUNT OF REMAINING GEAR RESPONDERS BELIEVE 

MAY FALL OUT ON ITS OWN. 

NSI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK CA-OR-WA 2019 7 21 VESSEL STRIKE MARIN CA DEAD WHALE 

CARCASS ORIGINALLY REPORTED TO TMMC IN THE 

SURF AT WILDCAT BEACH IN POINT REYES NATIONAL 

SEASHORE ON 7/21/2019. PRNS STAFF CONFIRMED THE 

CARCASS WAS STILL IN THE SAME LOCATION ON 

7/22/2019. CAS, TMMC, AND PRNS CONDUCTED A 

COMPLETE NECROPSY ON 7/23/2019. ALTHOUGH THE 

ENTIRE CARCASS WAS INTACT, THE SKULL WAS 

FRACTURED WITH THE POSTERIOR PORTION OF THE 

CRANIUM LOOSE ON THE BEACH. ON NECROPSY THE 

ROSTRUM WAS FRACTURED AND HAD SOME BONE 

BRUISING. COD WAS BLUNT FORCE TRAUMA 

CONSISTENT WITH SHIP STRIKE. 

DEAD 

LINE RUNNING FULL LENGTH OF BODY, DRAPED OVER 

FLUKES, CAUGHT ON BARNACLES. THE ANCHOR POINT 

OF THE LINE MAY INVOLVE THE MOUTH. WHALE 

HUMPBACK 

WHALE CA-OR-WA 2019 7 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN JUAN WA SI (PRORATE) INITIALLY SEEN IN CANADIAN WATERS WHERE DISENTANGLEMENT TEAM RESPONDED. WHALE WAS RESIGHTED IN U.S. WATERS WITHOUT LINE ON RIGHT SI (PRORATE) 

SIDE OF ANIMAL, IMPLYING THAT GEAR SHIFTED OR 

WAS SHED, BUT UNKNOWN. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. 

DUNGENESS CRAB HUMPBACK SI CA-OR-WA 2019 8 1 POT FISHERY MONTEREY CA WHALE (PRORATE) (CALIFORNIA) 

WHALE WATCH VESSEL REPORTED ENTANGLED 

HUMPBACK IN LARGE FEEDING AGGREGATION WITH 2 

ORANGE/RED BULLET BUOYS WITH BLUE/GREEN LINE 

AND OLIVE COLORED CDFW COMMERCIAL DUNGENESS 

CRAB TAG. DESCRIBED AS LIKELY MOUTH OR PECTORAL 

ENTANGLEMENT WITH BUOYS TRAILING BEHIND RIGHT 

SIDE OF WHALE. BUOYS DON'T ALWAYS POP UP WHEN 

WHALE SURFACES. PHOTOS SHOW THAT BUOYS ARE 

QUITE WEATHERED. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. 

SI 

(PRORATE) 

WHALE WATCH NATURALIST REPORTED 

ENTANGLEMENT OF FREE-SWIMMING ANIMAL IN A 

HUMPBACK 

WHALE CA-OR-WA 2019 8 6 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) FEEDING GROUP WITH THIN-GAUGE LINE OR MONOFILAMENT OVER FLUKE. PHOTOS INCONCLUSIVE, SHOW A WHALE FLUKING UP AT A DISTANCE WITH GEAR SI (PRORATE) 

NOT VISIBLE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

WHALE STRUGGLING TO SWIM NEAR SANTA CRUZ 

ISLAND. MULTIPLE CONSTRICTING WRAPS AROUND 

HUMPBACK 

WHALE CA-OR-WA 2019 8 7 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

VENTURA CA SI 

BODY WITH A DEEP, WIDE SCAR COVERED IN CYAMIDS. 

GEAR WAS OLD AND FADED. WHALE FOUND DEAD ONE 

WEEK LATER, GEAR CONFIRMATION DETERMINED VIA 

COLLECTION. GEAR WAS THOUGHT TO BE SET 

DEAD 

BETWEEN POINT CONCEPTION AND PIEDRAS BLANCAS 

AND MAY HAVE BEEN FROM 2017/2018 SEASON. . 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2019 8 8 

UNIDENTIFIED 

FISHERY 

INTERACTION 

CLALLAM WA SI 

LINE THROUGH MOUTH - OUT OF RIGHT MOUTH AND 

UNDER RIGHT FLIPPER TO PEDUNCLE, OUT OF LEFT 

MOUTH AND UNDER LEFT FLIPPER TO PEDUNCLE, WITH 

MULTIPLE WRAPS OF THE PEDUNCLE AND FLUKES AND 

A MESS OF LOOSE LINE AROUND THE PEDUNCLE. 

PHOTOS SHOW CONSTRICTING WRAPS OF LINE 

AROUND PEDUNCLE, CUTTING INTO THE ANIMAL WITH 

MULTIPLE PEDUNCLE LACERATIONS. MULTIPLE SCARS 

IN ADDITION TO THESE LACERATIONS. FREE-SWIMMING 

WHALE REACTED LITTLE TO DISENTANGLEMENT TEAM 

AND WAS EASILY APPROACHED. SUCCESSFULLY 

DISENTANGLED, WITH ONLY A SMALL PIECE OF GEAR 

REMAINING THAT MAY FALL OUT ON ITS OWN. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2019 8 12 HOOK AND LINE FISHERY MONTEREY CA SI (PRORATE) 

LOOP OF MONOFILAMENT LINE AROUND TAIL STOCK, 

CONNECTED UNDER FLUKE, DARK 3 INCH OBJECT THAT 

LOOKS LIKE A FISHING SINKER NEAR CONNECTION 

POINT. SUPERFICIAL SCARS ON FLUKES AND 

PEDUNCLE. AMOUNT AND CONFIGURATION OF GEAR 

UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2019 8 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

BLUE-GREEN TWISTED LINE TRAILING 60 FEET BEHIND 

WHALE. LINE CAUGHT ON SOME TUBERCLES ON THE TIP 

OF THE ROSTRUM BUT MAY HAVE MOVED AFT AND 

APPEARS AT THE WATER LINE ON THE LEFT SIDE 

AROUND THE MOUTH-LINE AND GOES OVER THE BODY 

FORWARD OF THE DORSAL FIN. THE OTHER END OF 

LINE IS UNDER THE ANIMAL, AND THERE IS AT LEAST 

ONE TIGHT WRAP AROUND THE PEDUNCLE. 

CONSTRICTING ENTANGLEMENT. UNAUTHORIZED 

ATTEMPT TO DISENTANGLE WHALE RESULTED IN 

TRAILING 50 FEET OF LINE CUT OFF, LEAVING TIGHT 

WRAP AROUND PEDUNCLE. 

SI 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

SHIP STRIKE WITNESSED BY A MEMBER OF THE PUBLIC 

AND REPORTED TO THE USCG, AND RESPONDED TO BY 

THE WHALE WATCHING VESSEL KITTY KAT. STRUCK BY 

CONTAINER SHIP MSC AZOV (CAPTAIN DENIES), IN SF 

BAY. WHALE FLOATED ON THE SURFACE, BLEEDING, 

UNTIL IT FINALLY APPEARED TO HAVE DIED. IT WAS 

LAST SEEN FLOATING NEAR KIRBY COVE, JUST WEST OF 

THE GOLDEN GATE BRIDGE. IT DID NOT APPEAR ANY 

HUMPBACK 

WHALE CA-OR-WA 2019 9 1 VESSEL STRIKE MARIN CA SI PLACE ON THE OUTER COAST AFTER THIS LAST SIGHTING. **ON OCTOBER 7TH, A REPORT WAS MADE TO DEAD 

CAS OF A "WHALE SOCK" (BLUBBER BUT NO BONES) AT 

MUSSEL ROCK PARK IN DALY CITY. THIS PARTICULAR 

AREA IS KNOWN FOR ITS HIGH DEPOSITION OF DEAD 

MARINE MAMMALS. CAS RESPONDED TO COLLECT 

TISSUES FOR DNA ANALYSIS AND THE BLUBBER WAS 

NOT LOCATED. IT IS UNKNOWN IF THIS IS THE REMNANT 

OF THIS HUMPBACK, AS THERE WERE NOT IDENTIFIABLE 

FEATURES. 

UNIDENTIFIED HUMPBACK SI CA-OR-WA 2019 10 2 FISHERY LOS ANGELES CA WHALE (PRORATE) INTERACTION 

DUNGENESS CRAB HUMPBACK CA-OR-WA 2019 10 23 POT FISHERY HUMBOLDT CA DEAD WHALE (CALIFORNIA) 

PHOTOS FROM AERIAL FISH SPOTTER PLANE SHOW 

HUMPBACK WHALE TRAILING LINE FROM FLUKES. 

WHALE HAS MANY LIGHT PATCHES OF SKIN DORSALLY 

AND A HEAVY CYAMID LOAD ON THE ROSTRUM AND 

BLOWHOLE AREA. POOR BODY CONDITION. MULTIPLE 

PHOTOS APPEAR TO SHOW DAMAGED OR MISSING 

RIGHT FLUKE BLADE AND WHALE IS SWIMMING ONLY 

SI 

(PRORATE) 

WITH PECTORAL FLIPPERS. HEAVY MARINE GROWTH ON 

TRAILING LINE, IMPLYING ENTANGLEMENT IS NOT NEW. 

AMOUNT AND CONFIGURATION OF GEAR UNKNOWN. 

ASSIGNED SERIOUS INJURY WITH PRORATION FACTOR 

EQUAL TO 1 DUE TO HEALTH DECLINE. . 

WHALE WITH GOOD BODY CONDITION STRANDED ALIVE 

ENTANGLED IN GEAR AND WAS EUTHANIZED. GEAR 

DESCRIPTION: TWO CYLINDRICAL BULLET BUOYS AND A 

MASS OF ORANGE LINE ON ITS LEFT SIDE AND POSSIBLY 

AROUND THE LEFT PECTORAL WITH LINE GOING 

THROUGH THE MOUTH AND COMING OUT THE RIGHT 

SIDE AND ENDING AT THE CRAB POT JUST IN FRONT OF DEAD 

THE RIGHT PECTORAL FLIPPER. APPROXIMATELY 235 

FEET OF ROPE RECOVERED. WOUNDS NOTED ON TAIL 

THAT IMPLY WHALE MAY HAVE BEEN 'HOG-TIED' PRIOR 

TO STRANDING. GEAR RECOVERED AND POSITIVELYIDENTIFIED TO FISHERY. GEAR SETS SOMETIME AFTER 

JANUARY 2019 IN 23 FATHOMS OF WATER. . 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2019 11 21 

DUNGENESS CRAB 

POT FISHERY 

(COMMERCIAL) 

SAN DIEGO CA SI 

STATIONARY WHALE, LIKELY ANCHORED IN PLACE, 

WITH NO MOVEMENT FOR 2 TO 3 HOURS. TWO 

CYLINDRICAL BULLET BUOYS AND A MASS OF LINE ON 

ITS LEFT SIDE AND POSSIBLY AROUND THE LEFT 

PECTORAL WITH LINE GOING THROUGH THE MOUTH 

AND COMING OUT THE RIGHT SIDE AND ENDING AT THE 

CRAB POT JUST IN FRONT OF THE RIGHT PECTORAL 

FLIPPER. SEVERE DAMAGE TO CAUDAL PEDUNCLE AND 

FLUKES, DEEP WOUNDS, PROGRESSING TOWARDS 

SEVERING / AMPUTATION OF TAIL. CONSTRICTING 

ENTANGLEMENT. ANIMAL IN POOR HEALTH WITH MANY 

CYAMIDS ON DORSAL SURFACE. SEA WORLD 

INTERVENED AND DISENTANGLED WHALE. UNKNOWN IF 

ALL GEAR WAS REMOVED. NO STATE POT/TRAP TAG 

ASSOCIATED WITH RECOVERED LINE AND TRAP. . 

SI 

HUMPBACK 

WHALE CA-OR-WA 2019 12 4 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SANTA CRUZ CA SI (PRORATE) 

WHALE IS TRAILING TWO BUOYS GREEN/YELLOW AND 

PINK/ORANGE WITH A 15 FOOT YELLOW LINE ATTACHED. 

THE BUOYS ARE GOING UP AND DOWN WITH EACH DIVE 

AND SINK AFTER THE WHALE HAS GONE DOWN AND 

SURFACE PRIOR TO THE WHALE. ENTANGLEMENT 

REPORTED AS COMING FROM THE FRONT OF THE 

ANIMAL EITHER NEAR THE MOUTH OR THE PECTORAL 

FLIPPERS. GEAR CONFIGURATION AND AMOUNT 

UNKNOWN. 

SI 

(PRORATE) 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2019 12 9 

DUNGENESS CRAB 

POT FISHERY 

(RECREATIONAL) 

SANTA CRUZ CA SI 

PHOTOS SHOW FREE-SWIMMING HEALTHY WHALE 

TRAILING 2 ORANGE BUOYS APPROXIMATELY 30 FEET 

BEHIND. WHALE IS SWIMMING AND RAISING FLUKES OUT 

OF THE WATER. SOME SCARRING NOTED ON 

TAILSTOCK. ENTANGLEMENT DIAGRAM SHOWS LINE 

WRAPPED AROUND BODY (SINGLE WRAP) BEHIND 

BLOWHOLE AND AT BASE OF PECTORAL FINS. DIAGRAM 

OF GEAR CONFIGURATION PLUS PHOTOS IMPLIES 

LOOSELY WRAPPED GEAR IN A BRIDLE AROUND WHALE. 

RECREATIONAL GEAR SET OUTSIDE MOSS LANDING 

HARBOR. FISHERMAN HAS LOST 3 POTS SINCE THE 

BEGINNING OF THE SEASON WITH ONE OF THEM 

REPORTED LOST EARLY LAST WEEK, AROUND THE TIME 

OF THE FIRST ENTANGLEMENT REPORT. HE FISHES 

BOTH ROUND AND SQUARE POTS WEIGHTED, LIKELY 

SQUARE DANIELSON TRAP USING LEADED LINE AND 

TRAILER BUOYS. THE FISHED DEPTHS RANGE FROM 130-

200 FEET WITH 300 FEET OF LINE. HE USES REBAR AND 

BAR BELLS AS WEIGHT (TYPICALLY 20 LBS). THE 

FISHERMAN BELIEVES HE HAD 300 FEET OF LINE ON THE 

TRAP IN TOTAL. HE BELIEVES THE LOST TRAP WENT 

MISSING AROUND THE SAME TIME THE ENTANGLEMENT 

WAS REPORTED BASED ON THE LAST TIME THEY WERE 

SERVICED. WHALE WAS DISENTANGLED ON 12/13/2019, 

APPROXIMATELY 140 FEET OF LINE RECOVERED. 

PHOTOS OF ENTANGLED WHALE AND RECOVERED 

GEAR REVIEWED BY J. CARRETTA. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2020 2 14 GILLNET FISHERY SAN DIEGO CA SI 

GILLNET WRAPPED AROUND BOTTOM JAW, CAUGHT ON 

FRONT RIGHT TUBERCLE DRAPED OVER BODY, 

WRAPPED TIGHTLY AROUND BODY AND TRAILING OVER 

FLUKES. LEFT PECTORAL POSSIBLY PINNED. BASED ON 

AMOUNT OF GEAR AND TIGHT WRAP, CONSIDERED AN 

EXTENSIVE CONSTRICTING ENTANGLEMENT. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2020 2 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

BLACK LINE THROUGH MOUTH RUNNING DOWN BOTH 

SIDES OF THE BODY, LINE APPEARS TO BE WEIGHTED 

GIVEN THE INJURIES/RUBBING OFF OF LONG LINEAR 

PATCH OF SKIN ALONG THE SIDES BEHIND THE 

PECTORAL FINS. THE INNER LEADING EDGE ADJACENT 

TO THE TAIL STOCK OF THE FLUKES IS RUBBED RAW. 

GEAR CONFIGURATION AND AMOUNT UNKNOWN. 

SI 

(PRORATE) 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2020 4 13 CA SPOT PRAWN TRAP FISHERY SANTA BARBARA CA SI (PRORATE) 

JUVENILE HUMPBACK CONFIRMED ENTANGLED 

ENTANGLED AND ANCHORED IN PLACE TO A SPOT 

PRAWN SET; AT LEAST 4 WRAPS OF LIGHT YELLOW 

TWISTED LINE TIGHTLY AROUND CAUDAL PEDUNCLE 

(MULTIPLE SCARS ALONG TAILSTOCK); THEN LINE GOES 

STRAIGHT DOWN (TWISTING ON ITSELF) TO TRAP; 

OTHER END OF LINE IS TRAILING OBLONG ORANGE 

POLY BALL ABOUT 5 FT BEHIND. FISHERMAN 

INTERVIEWED AND CONFIRMED 10 TRAPS, WITH 120 

POUND WEIGHTS; SET ON 4/10/2020; 400 FT OF SINKING 

LINE RUNNING FROM THE BUOY DOWN, 800FT OF 

FLOATING LINE RUNNING FROM THERE TO THE ANCHOR. 

PARTIAL GEAR REMOVAL BY RESCUE TEAM. FINAL GEAR 

AMOUNT AND CONFIGURATION UNKNOWN. 

SI 

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2020 4 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

ORANGE CA SI 

DEPENDENT CALF (SWIMMING WITH LARGER ANIMAL, 

PRESUMED MOTHER) NEAR CATALINA ISLAND 

ENTANGLED IN DARK COLORED MESH NETTING 

("LOOKED FAIRLY FRESH") WRAPPED ON RIGHT FLUKE 

BLADE AND TAILSTOCK, TRAILING DARK LINE WITH AT 

LEAST VERY SMALL 4 RED/ORANGE FLOATS. 

ENTANGLEMENT LIKELY TO BECOME CONSTRICTING AS 

ANIMAL GROWS. VIDEO REVIEWED BY J. CARRETTA AND 

A. HENRY. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2020 5 16 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

MONTEREY CA SI (PRORATE) 

CALIFORNIA DUNGENESS CRAB POT COMMERICIAL 

GEAR CONFIRMED FROM TAGS. PHOTO SHOWS TWO 

BUOYS AND MULTIPLE TWISTED LINES WRAPPED 

AROUND FLUKES AND CAUDAL PEDUNCLE AND CUTTING 

INTO WHALE WITH AREAS OF PINK / WHITE FLESH 

EXPOSED. CONSTRICTING ENTANGLEMENT. WHALE 

RESCUE TEAM DISENTANGLED WHALE AND CUT AWAY 

ALL GEAR. OUTCOME UNKNOWN. 

SI 

(PRORATE) 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2020 6 13 

DUNGENESS CRAB 

POT FISHERY 

(WASHINGTON) 

MARIN CA DEAD 

CARCASS WITH CONSTRICTING PEDUNCLE WRAP 

ALMOST COMPLETELY AMPUTATING FLUKE. LEFT BLADE 

MISSING AND RIGHT BLADE NECROTIC. COMMERCIAL 

DUNGENESS CRAB POT (OREGON). THE ENTANGLEMENT 

WAS TIGHTLY WRAPPED AROUND PEDUNCLE AT THE 

INSERTION POINT. THE ENTANGLEMENT HAD CUT 

ENTIRELY THROUGH THE PEDUNCLE WITH THE FLUKE 

AND ENTANGLEMENT ATTACHED BY ONLY THE CORD IN 

HER PEDUNCLE. CONSISTED OF 2 DIFFERENT COLOR 

BRAIDED ROPES (3/8 INCH FLOATING ORANGE LINE WITH 

A BLUE TRACER AND WHITE SINKING LINE WITH BLUE 

TRACER). FOUR BULLET BUOYS ATTACHED (ONE LARGE 

WHITE-MAIN BUOY; TWO BUOYS WITH ORANGE TIP WITH 

YELLOW BUTT; ONE SMALLER ORANGE BUOY). THE 

ENTIRE LEFT SIDE OF THE FLUKE WAS MISSING AND 

UNKNOWN IF THE CAUSE WAS THE ENTANGLEMENT OR 

SCAVENGING. BASED ON INTERVIEW WITH FISHERMAN, 

GEAR WAS SET SOMETIME BETWEEN MID APRIL AND 

LATE MAY. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2020 7 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI 

SINGLE LINE ACROSS THE TOP OF THE BODY CUTTING 

INTO FLESH ANTERIOR TO DORSAL FIN CONNECTED TO 

A MASS OF TANGLED LINES ON THE RIGHT SIDE OF 

BODY. CONSTRICTING ENTANGLEMENT. NOTHING 

TRAILING THE WHALE SO EITHER THERE IS SOMETHING 

STILL ON THE LINE BELOW THAT IS CAUSING THE DRAG 

TO PULL THROUGH THE WHALES FLESH; PERHAPS LEFT 

PECTORAL FLIPPER IS INVOLVED. ABLE TO RELOCATE 

THE WHALE JUST AS IT STARTED CHIN SLAPPING WHICH 

GAVE US GOOD LOOKS AT THE DIFFERENT PARTS OF 

THE BODY. THEN IT BEGAN TAIL SLAPPING. IT APPEARED 

AS IF IT WAS TRYING TO THROW THE GEAR. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2020 7 6 VESSEL STRIKE KING WA SI 

FERRY STRIKE. VESSEL SIZE IS 362 FEET AND SPEED 

WAS 13 KTS. PHOTO IMMEDIATELY AFTER STRIKE 

SHOWS INJURY TO RIGHT SIDE OF ANIMAL NOT 

PRESENT IN PHOTOS TAKEN AT SIGHTINGS IN DAYS 

PRIOR. VIDEO JUST AFTER STRIKE SHOWED WHALE 

ACTING ABNORMALLY AND ANIMAL LAST SEEN 24 

MINUTES AFTER IMPACT. PASSENGERS ABOARD PUGET 

SOUND EXPRESS WERE WATCHING 2 HUMPBACK 

WHALES AND WITNESSED A FERRY STRIKE TO THE 

SMALLER OF THE TWO WHALES AT 12:15. WHALE 

PRESUMED DEAD AFTER EXHAUSTIVE SEARCHES ON 06 

JUL AND 07 JULY DURING WHICH THE LARGER OF 2 

WHALES WAS SIGHTED BUT SMALLER ONE WAS NOT. 

NATIONAL DATABASE REFERENCE NW-2020-1226706. 

SI 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2020 7 26 VESSEL STRIKE GRAYS HARBOR WA DEAD 

CAUSE OF MORTALITY BLUNT FORCE TRAUMA 

CONSISTENT WITH SHIP STRIKE. VESSEL SIZE AND 

SPEED UNKNOWN. SEVERAL BROKEN RIBS ON LEFT 

SIDE NEAR VETERBRAL CONNECTION. MASSIVE 

INTERNAL BLEEDING IN CHEST CAVITY, HEMATOMA IN 

BLUBBER/MUSCLE NEAR L PECTORAL FIN. HEALED 

IMPRESSIONS CONSISTENT WITH ENTANGLEMENT ON 

TAILSTOCK (WRAP) AND LEADING EDGES OF FLUKES AT 

INSERTIONS AND A LINE OF IMPRESSIONS ALONG THE 

THROAT PLEATS BETWEEN THE PEC FINS (APPEARED 

TO HAVE BEEN WRAPPED)--THESE ARE NOT SUSPECTED 

TO BE RELATED TO MORTALITY. VESSEL SIZE AND 

SPEED UNKNOWN. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2020 7 30 

UNIDENTIFIED 

FISHERY 

INTERACTION 

LINCOLN OR DEAD 

HAKE TRAWL VESSEL PULLED UP A DEAD HUMPBACK IN 

THEIR NET. BLOATED ANIMAL WITH LARGE MISSING AND 

SLOUGHING PATCHES OF SKIN, OBVIOUSLY DEAD 

BEFORE PULLED UP. VESSEL REPORTED THAT 

CARCASS HAD BUOYS ATTACHED TO AND THERE ARE 

TWO ORANGE BUOYS SHOWN FROM THE DECK CAMERA 

PHOTOS. . 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2020 8 31 

UNIDENTIFIED 

FISHERY 

INTERACTION 

CLALLAM WA SI (PRORATE) 

REPORTING PARTY SAW A LINE WRAPPING THE WHOLE 

BODY BETWEEN THE DORSAL FIN AND FLIPPERS AND IT 

SURFACED AGAIN AFTER THE BREACH AND HE SAW THE 

LINE AGAIN - WHICH HE DESCRIBED THE ENTANGLING 

MATERIAL AS YELLOW 5/8" LINE. OBSERVATION 

OCCURRED WITHIN 60 FT. OF VESSEL. FULL 

CONFIGURATION AND AMOUNT OF GEAR UNKNOWN. 

SI

(PRORATE) 

HUMPBACK 

WHALE CA-OR-WA 2020 9 7 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MENDOCINO CA DEAD 

FRESH DEAD WITH FAIR BODY CONDITION. PHOTOS 

SHOWED PROBABLE ENTANGLEMENT INJURIES 

INCLUDING A) AMPUTATED FLUKES, B) LACERATIONS, 

ABRASIONS, AND PENETRATING WOUNDS TO THE 

DORSAL RIDGE AS WELL AS C) A POSSIBLE LINE 

IMPRESSION ON THE DORSAL SURFACE POSTERIOR TO 

THE BLOWHOLES DIRECTLY OVER THE SCAPULAE, D) 

POSSIBLE ABRASIONS ON THE RIGHT PECTORAL FIN, 

AND E) POSSIBLE LATERAL BRUISING ON THE RIGHT 

ABDOMEN. CHRONIC ENTANGLEMENT RESULTING IN 

AMPUTATION OF FLUKES. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

HUMPBACK 

WHALE CA-OR-WA 2020 9 27 VESSEL STRIKE CLALLAM WA DEAD 

ANIMAL HAD BEEN SEEN ALIVE BY LOCAL WHALE WATCH 

COMPANY ON 9-22. EVIDENCE OF BLUNT FORCE 

TRAUMA, CONSISTENT WITH SHIP STRIKE. FIELD OF 

SUBCUTANEOUS HEMORRHAGE ON LATERAL RIGHT 

MANDIBLE, CONCENTRATED IN FRONT 1/3 OF MANDIBLE 

AND RADIATING TO INSERTION OF PECTORAL FIN. 

TRAUMA MAY EXTEND TOWARD LEFT SIDE MANDIBLE. 

NO BROKEN BONES OBSERVED BUT CANNOT RULE OUT 

THE POSSIBLITY OF SMALL FRACTURES THAT WERE 

MISSED. LAYING ON BACK AND UNABLE TO EXAMINE 

TOP OF HEAD. EXTENT OF TRUAMAUTIC INJURIES 

UNDERTERMINED BUT LIKELY SIGNIFICANTLY 

CONTRIBUTED TO MOBIDITY AND MORTALITY. VESSEL 

SIZE AND SPEED UNKNOWN. 

DEAD 

HUMPBACK 

WHALE CA-OR-WA 2020 10 11 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN DIEGO CA SI 

WHALE WITH OBVIOUS ENTANGLEMENT INJURY AT 

FLUKE INSERTION POINT AND SCARS / APPARENT RUB 

MARKS ALONG THE DORSAL MIDLINE POSTERIOR TO 

DORSAL FIN INDICATING GEAR HAD MOVED ALONG THAT 

PART OF THE WHALE. WHALE IS ALSO NOT USING ITS 

FLUKES WHILE TRAVELING (=LIMITED MOBILITY). HEAVY 

CYAMID LOAD AND DISCOLORED SKIN INDICATING A 

HEALTH DECLINE. NO GEAR ACTUALLY PRESENT ON 

WHALE (=GEAR FREE), BUT PHOTOS AND UAV VIDEO 

ARE UNEQUIVOCAL THAT THIS WHALE WAS 

PREVIOUSLY-ENTANGLED AND HAS UNDERGONE A 

HEALTH DECLINE. CONFIGURATION AND AMOUNT OF 

GEAR UNKNOWN. 

SI 

HUMPBACK 

WHALE CA-OR-WA 2020 10 13 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE)

TWO GREEN LINES ON LEFT SIDE OF ROSTRUM AND 

LINE ACROSS THE ANIMALS BACK, WHICH IS HARD TO 

SEE IN THE PHOTO. GEAR CONFIGURATION AND 

AMOUNT UNKNOWN. PRESUMED FULL SELF RELEASE, 

SEEN GEAR FREE BY HAPPY WHALE IN NOVEMBER. 

NSI 

HUMPBACK 

WHALE CA-OR-WA 2020 10 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

JEFFERSON WA DEAD 

WHALE STRANDED ALIVE BUT DIED BY THE FOLLOWING 

MORNING. NECROPSY IDENTIFIED NUMEROUS 

SCRAPES, SCRATCHES, AND CIRCULAR OR OBLONG 

SKIN LESIONS WITH WIDE MARGINS AND DEPRESSED 

CENTERS. THE WHALE LICE (CYAMID) BURDEN WAS 

HEAVY ALONG THE BACK AND SIDES AND EXTENDING 

VENTRALLY ALONG THE HEAD AND MOUTH. DEEP 

CONSTRICTING WRAP INJURY ENCIRCLED THE 

TAILSTOCK WITH ASSOCIATED TISSUE NECROSIS AND 

ABRADED SKIN. SIMILAR ABRASIONS WERE ON THE 

RIGHT PECTORAL FIN, AND THE LEFT PECTORAL FIN 

APPEARED SWOLLEN. HEALED COOKIE CUTTER BITES 

WERE ON BOTH PECTORAL FINS, AND A LARGE HEALED 

NOTCH WAS ON THE DISTAL END OF THE TRAILING LEFT 

PECTORAL FIN. 

DEAD 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

MINKE WHALE CA-OR-WA 2017 5 28 SHOOTING PACIFIC WA DEAD 

TREMENDOUS HEMORRHAGE ASSOCIATED WITH BEING 

SHOT THROUGH LEFT SKULL; EXTENSIVE HEMORRHAGE 

ON LEFT DORSAL THORAX AND LEFT FLIPPER; RIGHT 

SIDE OF WHALE COULD NOT BE EXAMINED (HEAVY 

EQUIPMENT REQUIRED) 

DEAD 

MINKE WHALE CA-OR-WA 2019 8 3 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA SI (PRORATE) 

SINGLE BUOY AND ROPE AROUND BASE OF FLUKES, 

'ROPES GOING DOWN' (PRESUMABLY TO DEPTH). WHALE 

WATCH CAPTAIN WAS WITH WHALE FOR 20 MINUTES, 

SAID ENTANGLEMENT LOOKED RECENT. GEAR 

CONFIGURATION AND AMOUNT UNKNOWN. 

SI 

(PRORATE) 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 1 22 MARINE DEBRIS SAN LUIS OBISPO CA NSI ANIMAL DISTENTANGLED FROM WHITE PACKING BAND ON SITE. NO INFORMATION ON ANIMAL'S CONDITION. NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 

BREEDING 2016 1 24 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 1 30 MARINE DEBRIS SAN LUIS OBISPO CA SI ANIMAL DISENTANGLED FROM WHITE PACKING STRAP CONSTRICTING BODY; ANIMAL RELEASED ON SITE. NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 2 21 HARASSMENT SAN MATEO CA NSI WEANED PUP BEING HARASSED BY PUBLIC. RELOCATED TO ANO NUEVO. NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 

BREEDING 2016 4 10 

OPEN ACCESS CA 

HALIBUT BOTTOM 

TRAWL 

OFFSHORE CA DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 4 27 MARINE DEBRIS MONTEREY CA SI 

EMACIATED, LETHARGIC, MULTIPLE MINOR SKIN 

WOUNDS WITH FEW ABSCESSES, HARSH LUNG SOUNDS, 

MULTIPLE SMALL CORNEAL OPACITIES NOTED 

BILATERALLY. PIECE OF WHITE PLASTIC TUBE FOUND IN 

STOMACH DURING POST-MORTEM EXAM. 

DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 5 24 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 6 16 SHOOTING OR DEAD 

EXTENSIVE HEMORRHAGE IN HEAD AND AT THORAX 

AND SCAPULAE AREA; SMALL PELLET-LIKE HOLES IN 

HEAD AND ONE IN ORBITAL BONE. 

DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2016 11 5 MARINE DEBRIS SAN MATEO CA SI 

ANIMAL DESCRIBED AS HAVING EXCELLENT BODY 

CONDITION, ENTANGLED IN UNDESCRIBED MATERIAL. 

DISENTANGLED / RELEASED ON SITE. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 2 3 HARASSMENT SAN LUIS OBISPO CA SI PUBLIC WAS TOUCHING AND HARASSING A PUP. PICKED UP TREATED AND RELEASED BY REHAB FACILITY. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 2 23 HARASSMENT MARIN CA SI PUBLIC HARASSING A MILDLY UNDERWEIGHT PUP. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 2 26 HARASSMENT SAN MATEO CA SI PUBLIC HARASSING A MILDLY UNDERWEIGHT PUP. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 3 27 OIL / TAR SAN LUIS OBISPO CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 3 30 HOOK AND LINE FISHERY LOS ANGELES CA SI EMACIATED ANIMAL WITH THREE FISH HOOKS IN CHIN AND REAR FLIPPER. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 2 MARINE DEBRIS SAN LUIS OBISPO CA SI 

PACKING STRAP ENTANGLEMENT AROUND NECK. 

ANIMAL DISENTANGLED IN THE FIELD WITHOUT 

SEDATION. ANIMAL LEFT AT SITE, NO FURTHER DETAILS 

ON EXTENT OF INJURY. CONSERVATIVELY ASSIGNED AS 

A SERIOUS INJURY DUE TO LACK OF DETAILS ON INJURY 

SEVERITY. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 10 OIL / TAR MONTEREY CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 11 OIL / TAR ORANGE CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 12 OIL / TAR ORANGE CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 12 OIL / TAR ORANGE CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 14 OIL / TAR ORANGE CA SI MALNOURISHED ANIMAL WITH OIL / TAR ON IT BEING HARASSED BY PEOPLE. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 14 HARASSMENT SONOMA CA NSI ANIMAL IN GOOD BODY CONDITION RELOCATED BECAUSE OF HARASSMENT BY PEOPLE AND DOGS. NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 19 HARASSMENT SAN DIEGO CA SI UNDERWEIGHT ANIMAL WITH ORANGE PAINT ON DORSUM. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 4 25 OIL / TAR ORANGE CA SI UNDERWEIGHT ANIMAL WITH OIL AND TAR PATCHES AND PUNCTURE WOUND ON NECK. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 5 4 OIL / TAR ORANGE CA SI UNDERWEIGHT ANIMAL WITH TAR ON FACE AND ABDOMEN. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 5 26 HARASSMENT MARIN CA NSI HARASSED BY PEOPLE AND DOGS. RELOCATED TO A DIFFERENT BEACH. NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 6 9 OIL / TAR ORANGE CA SI UNDERWEIGHT ANIMAL WITH TAR PATCHES ON BODY. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 6 14 

MS CATCHER 

VESSELS 

MIDWATER TRAWL 

OFFSHORE WA DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 6 18 HARASSMENT SAN DIEGO CA NSI 

ANIMAL IN GOOD BODY CONDITION RELOCATED 

BECAUSE OF HEAVY LEVEL OF HARASSMENT BY 

PEOPLE. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 7 18 HARASSMENT SAN DIEGO CA NSI 

ANIMAL IN GOOD BODY CONDITION RELOCATED 

BECAUSE OF HEAVY LEVEL OF HARASSMENT BY 

PEOPLE. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 8 13 VESSEL STRIKE MONTEREY CA DEAD CLEAR PROPELLER STRIKE WOUNDS ON SIDE OF ANIMAL. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 9 12 

GULF OF ALASKA 

PACIFIC COD 

LONGLINE 

OFFSHORE AK DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 11 14 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 11 16 

GULF OF ALASKA 

SABLEFISH 

LONGLINE 

OFFSHORE AK SI 

OBSERVER PROGRAM. ANIMAL WITH WHITE MATERIAL 

AROUND NECK DUMPED BACK OVERBOARD AFTER 

BEING BROUGHT ON DECK. OBSERVER NOTED THAT 

THE ANIMAL WAS INJURED. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 11 17 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 12 5 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD MORTALITY SELF-REPORT FROM VESSEL OPERATOR. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2017 12 11 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 3 6 OIL / TAR SAN LUIS OBISPO CA SI 

PATCHES OF OIL/TAR ON AN EMACIATED ELEPHANT 

SEAL IN MULTIPLE LOCATIONS: 5-6CM PATCH ON 

CAUDAL DORSUM, 0.5-1CM PATCHES ON VENTRUM, LEFT 

LATERAL BODY, AND ALONG LEFT FRONT FLIPPER. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 3 27 OIL / TAR MONTEREY CA SI 

MALNOURISHED ANIMAL ON A BEACH WITH PEOPLE 

POLING IT WITH STICKS, MULTIPLE TAR PATCHES 

PRESENT ON RIGHT/LEFT HIPS AND FLIPPERS. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 3 27 HARASSMENT MONTEREY CA NSI 

ANIMAL BEING HARASSED BY PEOPLE ON BUSY BEACH 

THROWING SAND AT SEAL. IN GOOD BODY CONDITION 

(MILDLY UNDERWEIGHT BUT NOT UNUSUAL) AND 

EXHIBITING REGULAR BEHAVIOR BUT NOT AVOIDING 

HARASSMENT. RELOCATED TO POINT LOBOS STATE 

RESERVE (WHALERS COVE), CARMEL-BY-THE-SEA, 

MONTEREY COUNTY, CA, USA ON MARCH 29 2018. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 4 4 OIL / TAR MONTEREY CA NSI 

MILDLY UNDERWEIGHT SEAL WITH TAR PATCHES 

PRESENT ON NECK AND SHOULDERS, GUMMY EYES. 

PEOPLE GETTING CLOSE TO TAKE PICTURES AND 

TOUCHING ANIMAL, PEOPLE TOSSING SAND AT IT. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 4 21 OIL / TAR SANTA CRUZ CA SI MALNOURISHED ANIMAL WITH TAR/OIL PATCHES, SMALL PUNCTURE WOUND ON RIGHT CHEEK. SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 4 28 HOOK AND LINE FISHERY LOS ANGELES CA SI 

MALNOURISHED ANIMAL DESCRIBED AS HAVING 

INTERACTED WITH HOOK AND LINE FISHERY. NO 

DETAILS ON INJURY TYPE OR SEVERITY, OR OUTCOME. 

ASSUMING HOOKS WERE IN OR NEAR MOUTH DUE TO 

CONDITION OF ANIMAL. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 5 2 

CA HALIBUT AND 

WHITE SEABASS 

SET GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 5 26 OIL / TAR GRAYS HARBOR WA SI UNDERWEIGHT ANIMAL WITH TAR/OIL ON BODY. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 5 30 HOOK AND LINE FISHERY SAN DIEGO CA NSI 

ANIMAL IN GOOD BODY CONDITION WITH ONE FISHING 

HOOK IN LEFT REAR FLIPPER, AND ANOTHER HOOK 

ABOVE LEFT REAR FLIPPER. BOTH HOOKS REMOVED 

AND ANIMAL WAS RELEASED ON SITE. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 6 4 

UNIDENTIFIED 

HUMAN 

INTERACTION 

GRAYS 

HARBOR WA SI 

HIND FLIPPER HAD BLOOD AND PUNCTURE WOUNDS, 

LACERATION ON RIGHT SIDE. ANIMAL WAS LETHARGIC, 

EMACIATED AND HAD MODERATE, YELLOWISH 

MUCOPURULENT DISCHARGE FROM THE EYES. ANIMAL 

WAS TAGGED AS A WEANED PUP ON 2/23/18 ON DRAKES 

BEACH IN POINT REYES NATIONAL SEASHORE. IT WAS 

RECORDED THAT THE ANIMAL WAS FEMALE, TAG 

NUMBER S834. ON 6/5 SEAL WAS EUTHANIZED DUE IT 

BEING UNRESPOSIVE ON THE BEACH. LACERATION ON 

RIGHT SIDE, SMALL LACERATION ON RIGHT FLIPPER, 

POSSIBLY DOG OR COYOTE. 

DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 9 4 MARINE DEBRIS MENDOCINO CA DEAD MARINE DEBRIS ENTANGLEMENT. WRAPPED UP IN ROPE WITH BARNACLES ON IT. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 10 14 HARASSMENT MARIN CA NSI 

PATIENT FOUND LYING IN THE MIDDLE OF A GRAVEL 

ROAD WITH TOWELS ON IT THAT SOMEONE PUT OVER. 

PATIENT WAS ALSO MOLTING. NO OTHER DETAILS ON 

ANIMAL'S CONDITION. 

NSI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 10 20 

BERING SEA AND 

ALEUTIAN ISLANDS 

ATKA MACKEREL 

TRAWL 

OFFSHORE AK SI 

OBSERVER PROGRAM. ANIMAL RETURNED TO WATER 

INJURED. ALSO REPORTED VIA MMAP PROGRAM WITH 

CONDITION REPORTED AS "LISTNESSNESS / INABILITY 

TO DEFEND". 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2018 10 29 MARINE DEBRIS LOS ANGELES CA SI 

A JUVENILE NORTHERN ELEPHANT SEAL WAS HAULED 

OUT AT SAN CLEMENTE ISLAND. THE ANIMAL HAD A 

WIDE (10 - 15 CM) RUBBER BAND CONSTRICTING ITS 

NECK. THE ANIMAL'S BODY CONDITION WAS GOOD, BUT 

THE RUBBER BAND IS MADE OF THICK MATERIAL AND 

WILL CONTINUE TO CONSTRICT THE ANIMAL AS IT 

GROWS. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 1 15 VEHICLE COLLISION SAN LUIS OBISPO CA DEAD ANIMAL WAS STRUCK BY CAR AND KILLED 1/15/19 PM ON HWY 1. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 1 21 HARASSMENT MARIN CA SI 

MILDLY UNDERWEIGHT, MATERNAL SEPARATION, 

KERATOPATHY, AND RESPONDERS WERE TOLD THAT A 

MAN DRAGGED THE ANIMAL ~100 FEET TO THE WATER. 

IT HAULED BACK OUT WHERE IT WAS RESCUED. IT WAS 

ALSO REPORTED THAT PEOPLE WE TAKING PHOTOS 

WITH THE ANIMALS AND THEIR DOGS. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 3 23 DOG ATTACK LOS ANGELES CA SI DOG BITE WOUNDS. NO FURTHER DETAILS. SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 6 4 

WEST COAST 

GROUNDFISH 

TRAWL 

UNKNOWN UNKNOWN DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 6 26 CATCH SHARES POT OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 6 29 MIDWATER HAKE TRAWL OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 7 15 SHOOTING PACIFIC WA DEAD 

EXTERNALLY, THE ANIMAL HAD GOOD BODY CONDITION; 

HEAD WAS PARTIALLY SCAVENGED AND BLOODY; 

PELLETS AND HEMORRHAGE IN HEAD (PELLETS WERE 

FOUND IN SKULL). 

DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 10 6 MIDWATER ROCKFISH TRAWL OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 1 2 VESSEL STRIKE CLATSOP OR DEAD MODERATERLY DECOMPOSED ANIMAL WITH PROPELLER CUTS AND BROKEN BONES. DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 1 6 

DUNGENESS CRAB 

POT FISHERY (CALIFORNIA) 

SAN 

FRANCISCO CA DEAD 

NO BIOLOGICAL SAMPLES COLLECTED COLLECTED: 1. 

RED PLASTIC CRAB POT GEAR TAG AND SAMPLE PIECES 

OF TWO LINES TANGLED AROUND THE GEAR AND 

CARCASS. MUMMIFIED ELEPHANT SEAL CARCASS 

(IDENTIFIED TO SPECIES BASED ON APPEARANCE OF 

HIND FLIPPER. TAG NUMBER WAS A TIER 7 WITH 2015-

2017 DATES. 

DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 3 10 OIL / TAR MARIN CA SI 

OIL/TAR EMACIATED, LETHARGIC, SMALL AMOUNT OF 

TAR ON DORSAL RIGHT MIDLINE, PARTIAL BLACKCOAT. 

HARASSED - PEOPLE ON THE BEACH APPROACHING 

AND PETTING ANIMAL. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 4 17 DOG ATTACK MARIN CA SI 

EMACIATED, ALERT BUT NOT ACTIVE, DOG BITE TO HIND 

END, SKIN LACERATIONS AND PUNCTURE WOUNDS TO 

RIGHT PELVIC LIMB. HARASSED. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 4 21 OIL / TAR DEL NORTE CA SI 

ANIMAL WAS LETHARGIC AND WAS IMMOBILE DUE TO 

POSSIBLE RIGHT FRONT FLIPPER INJURY. ANIMAL ALSO 

HAD TAR VISIBLE IN SEVERAL AREAS OF ITS BODY. 

SI 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 5 20 SHOOTING PACIFIC WA DEAD 

ANIMAL WAS EXTREMELY DECOMPOSED, BUT IT WAS 

APPARENT FROM WHAT WAS LEFT THAT THE ANIMAL 

HAD EXCELLENT BODY CONDITION; ANIMAL WAS 

CLEARLY SHOT IN THE HEAD (HOLE IN SKULL) AND 

POSSIBLY IN THE ABDOMEN BASED ON HEMORRHAGE IN 

THAT AREA. 

DEAD 

NORTHERN 

ELEPHANT 

SEAL 

CALIFORNIA 2020 11 18 MARINE DEBRIS HUMBOLDT CA SI 

GREEN TWINE WRAPPED AROUND JAW SUBADULT MALE 

NES REPORTED WITH LOWER JAW ENTANGLEMENT. 

ANIMAL LOCATED IN LOST COAST ROOKERY. NO 

STRANDING. FIELD DISENTANGLEMENT EXECUTED ON 

11/28/20 ANIMAL APPEARED HEALTHY. 

NSI 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2016 10 23 AT-SEA HAKE PELAGIC TRAWL OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2016 12 3 DOG ATTACK SAN FRANCISCO CA DEAD PUP NECROPSIED, CAUSE OF DEATH DETERMINED TO BE CANINE ATTACK. DEAD 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2017 3 4 TRAWL FISHERY UNIDENTIFIED CLATSOP OR DEAD CARCASS WITH SECTION OF BOTTOM TRAWL NET (CONFIRMED) AROUND THE FUR SEAL'S NECK (3- STRAND POLYPROPYLENE). DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2017 3 8 TRAWL FISHERY UNIDENTIFIED LINCOLN OR DEAD ONE OF TWO JUVENILES FOUND ENTANGLED IN GREEN TRAWL NET MATERIAL. DEAD 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2017 3 8 TRAWL FISHERY UNIDENTIFIED LINCOLN OR DEAD ONE OF TWO JUVENILES FOUND ENTANGLED IN GREEN TRAWL NET MATERIAL. DEAD 

NORTHERN 

FUR SEAL CALIFORNIA 2017 8 18 

LIMITED ENTRY 

SABLEFISH HOOK 

AND LINE 

OFFSHORE CA NSI 

SEAL BOMB USED AS DETERRENT TO ANIMAL FEEDING 

ON CATCH. ALIVE, NO VISIBLE SIGN OF INJURY. 

OBSERVER PROGRAM. 

NSI 

NORTHERN 

FUR SEAL 

EASTERN 

PACIFICCALIFORNIA 2018 1 22 MARINE DEBRIS DOUGLAS OR SI 

PLASTIC STRING, CORD OR STRAP WRAPPED AROUND 

NECK, CUTTING INTO INTEGUMENT. THIS YOUNG MALE 

NORTHERN FUR SEAL WAS TRANSFERRED BRIEFLY TO 

OREGON COAST AQUARIUM ON 1/22/18. IT WAS 

DISENTANGLED, HELD OVERNIGHT, AND RELEASED THE 

NEXT DAY. 

NSI 

NORTHERN 

FUR SEAL CALIFORNIA 2018 10 27 OIL / TAR SAN LUIS OBISPO CA SI PATIENT FOUND LETHARGIC AND EMACITATED COVERED IN OIL/TAR, MATTED FUR, AND PEOPLE HARASSING SEAL. SI 

NORTHERN 

RIGHT WHALE 

DOLPHIN 

CA-OR-WA 2016 4 10 

UNIDENTIFIED 

FISHERY 

INTERACTION 

UNKNOWN OR DEAD 

EXTENSIVE FOOTROPE ROLLER MARKS ON ANIMAL; 

FLUKE EDGES AND PART OF PECTORALS CUT OFF; 

BROKEN RIBS; VARIOUS HEMORRHAGIC AREAS; 

COPIOUS AMOUNT OF CLEAR PINK FLUID IN BRAIN CASE; 

THE DOLPHIN HAD EXCELLENT BODY CONDITION 

DEAD 

NORTHERN 

RIGHT WHALE 

DOLPHIN 

CA-OR-WA 2016 9 30 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR DEAD OBSERVER PROGRAM. DEAD 

NORTHERN 

RIGHT WHALE 

DOLPHIN 

CA-OR-WA 2017 1 10 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

NORTHERN 

RIGHT WHALE 

DOLPHIN 

CA-OR-WA 2017 11 12 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 5 15 SCIENTIFIC RESEARCH OFFSHORE CA DEAD KILLED IN A MIDWATER TRAWL. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA DEAD ONE OF SEVEN PACIFIC WHITE SIDED DOLPHINS CAUGHT IN A SURFACE TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2016 7 18 SCIENTIFIC RESEARCH OFFSHORE WA SI 

IN ADDITION TO THE 7 DEAD DOLPHINS RETRIEVED 

DEAD FROM THIS TRAWL ON 7/18/2016, AN 8TH ANIMAL 

WAS SEEN VIA VIDEO CAMERA ATTACHED TO NET 

ESCAPING ALIVE THROUGH THE MARINE MAMMAL 

EXCLUDER DEVICE. CONDITION OF ANIMAL UNKNOWN 

UPON ESCAPE AND BASED ON DEAD CONDITION OF 7 

ASSOCIATED ANIMALS THAT WERE TRAPPED FOR A 

SUFFICIENT DURATION TO RESULT IN DEATH, THIS IS 

BEING ASSIGNED AS A SERIOUS INJURY DUE TO 

UNKNOWN EFFECTS OF CAPTURE MYOPATHY. 

SI 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2017 5 12 GILLNET FISHERY CLATSOP OR DEAD DORSAL FIN AND FLIPPER TIPS CUT OFF. HEMORRAGHING AND HEAVY BRUISING. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2017 5 30 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE WA DEAD OBSERVER PROGRAM. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2017 CATCH SHARES BOTTOM TRAWL OFFSHORE CA DEAD OBSERVER PROGRAM. DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2018 6 14 SCIENTIFIC RESEARCH OFFSHORE CA DEAD MALE 175 CM CAUGHT IN TRAWL DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2018 6 14 SCIENTIFIC RESEARCH OFFSHORE CA DEAD CAUGHT AND KILLED IN TRAWL GEAR. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2018 7 24 SCIENTIFIC RESEARCH OFFSHORE OR DEAD CAUGHT AND KILLED IN TRAWL GEAR. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2018 7 24 SCIENTIFIC RESEARCH OFFSHORE OR DEAD CAUGHT AND KILLED IN TRAWL GEAR. DEAD 

PACIFIC 

WHITE-SIDED 

DOLPHIN 

CA-OR-WA 2018 8 28 SCIENTIFIC RESEARCH OFFSHORE CA DEAD CAUGHT AND KILLED IN TRAWL GEAR. DEAD 

RISSO'S 

DOLPHIN CA-OR-WA 2016 1 21 GILLNET FISHERY SAN DIEGO CA DEAD 

FISHERY INTERACTION: DORSAL FIN HAS BEEN CLEANLY 

CUT OFF, FLUKES AT THE PEDUNCLE HAVE BEEN 

CLEANLY CUT OFF EXPOSING BONE (MINIMUM TOTAL 

BODY LENGTH AT THIS POINT = 267.9 CM). ANIMAL WAS 

IN ADVANCED DECOMPOSITION AND HAD BEEN 

SCAVENGED, OTHER POSSIBLE MARKINGS ARE CBD. 

SEX ID PER GENETICS. MUTILATION / CUTTING OFF OF 

BODY PARTS CONSISTENT WITH HOW ANIMALS ARE 

REMOVED FROM GILLNETS. 

DEAD 

SPERM WHALE CA-OR-WA 2020 10 1 

UNIDENTIFIED 

FISHERY 

INTERACTION 

VENTURA CA SI 

JUVENILE SPERM WHALE PHOTOGRAPHED OFF SANTA 

CRUZ ISLAND. ENTANGLEMENT APPEARS TO MAINLY 

INVOLVE THE PEDUNCLE AND TAIL BUT IT IS POSSIBLE 

THAT THERE IS MORE LINE ON THE WHALE. AMOUNT 

AND CONFIGURATION OF GEAR UNKNOWN. THE GEAR 

APPEARS TO BE SOME THICKER GAUGE POLY PRO LINE 

LIKE BLUE SPECTRA AND IS WRAPPED AROUND THE 

PEDUNCLE AND DRAGGING BEHIND APPROX 10 FT OR 

SO. PHOTO OF PEDUNCLE UNDERWATER SHOWS LINE 

CUTTING INTO PEDUNCLE BELOW THE SKIN, WITH 

WHITISH WOUNDS VISIBLE AND MULTIPLE SCARS 

SURROUNDING THE WOUND. CONSTRICTING 

ENTANGLEMENT BASED ON LINE CUTTING INTO WHALE. 

SI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

STRIPED 

DOLPHIN CA-OR-WA 2016 1 30 GILLNET FISHERY CLATSOP OR DEAD 

GAFF INJURY ON PEDUNCLE; ROSTRUM BROKEN; "TEAR" 

IN TISSUE AT MELON/ROSTRUM JUNCTION; LUNGS 

FILLED WITH SAND, HIGHLY INFLATED, AND VERY 

FRIABLE; A SIGNIFICANT AMOUNT OF BLOODY FLUID IN 

THORACIC CAVITY; CREPITUS AROUND KIDNEYS; FAIRLY 

HEAVY PARASITE LOAD. 

DEAD 

STRIPED 

DOLPHIN CA-OR-WA 2016 1 30 GILLNET FISHERY CLATSOP OR SI 

LUNGS HIGHLY INFLATED AND HEMORRHAGED; 

INDENTATIONS WITH 3-CM SPACING DORSALLY; A 

SIGNIFICANT AMOUNT OF BLOODY FLUID IN THORACIC 

AND ABDOMINAL CAVITIES. 

DEAD 

STRIPED 

DOLPHIN CA-OR-WA 2016 2 1 GILLNET FISHERY CLATSOP OR DEAD 

GAFF INJURY AT PEDUNCLE; BLOWHOLE BLOODY; DARK 

RED FLUID IN THORACIC CAVITY; A SIGNIFICANT 

AMOUNT OF CEREBRAL SPINAL FLUID IN BRAINCASE; 

HEAVY LOAD OF LUNG PARASITES; CREPITUS ENCASED 

THE KIDNEYS; ADRENALS ABNORMAL. 

DEAD 

STRIPED 

DOLPHIN CA-OR-WA 2017 2 25 

UNIDENTIFIED 

FISHERY 

INTERACTION 

TILLAMOOK OR DEAD 

MASSIVE BRUISING AND HEMORRHAGE WITH LINE 

MARKS; RIGHT LOWER JAW BROKEN; RIB MARKS ON 

RIGHT LUNG; THROAT CUT FROM FLIPPER TO FLIPPER. 

DEAD 

STRIPED 

DOLPHIN CA-OR-WA 2020 7 8 GILLNET FISHERY CLATSOP OR SI ANIMAL WITH COMPOUND FRACTURE OF JAW, NET MARKS AND GASHES STRANDED ALIVE. EUTHANIZED. DEAD 

UNIDENTIFIED 

DOLPHIN 2017 12 2 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD MORTALITY SELF-REPORT FROM VESSEL OPERATOR. DEAD 

UNIDENTIFIED 

DOLPHIN 2017 12 4 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD MORTALITY SELF-REPORT FROM VESSEL OPERATOR. DEAD 

UNIDENTIFIED 

DOLPHIN 2016 10 1 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR SI 

CAUGHT IN FORENET, THE CREW REMOVED AND 

RELEASED OVER THE STERN. SERIOUS INJURY 

BECAUSE ANIMAL WAS REMOVED FROM WATER AND 

WAS ON DECK. OBSERVER PROGRAM. 

SI 

UNIDENTIFIED 

DOLPHIN 2017 8 2 CA SPOT PRAWN TRAP FISHERY VENTURA CA DEAD TAIL WRAPPED IN LINE OF A SPOT PRAWN TRAP. NO NECROPSY, NO FURTHER DETAILS. DEAD 

UNIDENTIFIED 

DOLPHIN 2018 10 22 

CA SWORDFISH 

DRIFT GILLNET 

FISHERY 

OFFSHORE CA DEAD OBSERVER PROGRAM DEAD 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

UNIDENTIFIED 

FUR SEAL 2019 5 25 DOG ATTACK CLATSOP OR SI 

CHASED INTO OCEAN YOUNG FUR SEAL, EITHER 

YEARLING OR JUVENILE, ATTACKED BY OFF-LEASH DOG 

ON BEACH; OWNER OF DOG ALLOWED DOG TO 

CONTINUE ITS ATTACK. OUTCOME AND HEALTH STATUS 

UNKNOWN. CONSERVATIVELY ASSIGNED AS SERIOUS 

INJURY. 

SI 

UNIDENTIFIED 

FUR SEAL 2020 11 15 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN MOUTH (PART NOT SPECIFIED) BY 18/0 

OFFSET ROUND OR FLAT CIRCLE HOOK (5.0MM 

DIAMETER). SOON AFTER THE ANIMAL WAS OBSERVED, 

IT CAME FREE OF THE GEAR: NO GEAR LEFT ON ANIMAL. 

OBSERVER PROGRAM. 

NSI 

UNIDENTIFIED 

FUR SEAL 2020 11 19 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA NSI 

HOOKED IN MOUTH (PART NOT SPECIFIED) BY 18/0 

OFFSET FLAT CIRCLE HOOK (5.0MM DIAMETER). SOON 

AFTER THE ANIMAL WAS OBSERVED, IT CAME FREE OF 

THE GEAR: NO GEAR LEFT ON ANIMAL. OBSERVER 

PROGRAM. 

NSI 

UNIDENTIFIED 

OTARIID 2019 8 GILLNET FISHERY, TRIBAL DEAD NORTHWEST INDIAN FISHERIES COMMISSION REPORT DEAD 

UNIDENTIFIED 

PINNIPED 2016 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2016 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2016 11 8 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2016 11 12 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 
Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020. 

Species Stock YYYY MM DD Source County State Initial Narrative Final 

UNIDENTIFIED 

PINNIPED 2016 11 13 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

PINNIPED 2019 

CATCHER 

PROCESSOR 

MIDWATER TRAWL 

OFFSHORE OR NSI ANIMAL BRIEFLY ENTANGLED AND RELEASED WITHOUT APPARENT INJURY. OBSERVER PROGRAM. NSI 

UNIDENTIFIED 

SEA LION 2019 3 6 CATCH SHARES BOTTOM TRAWL DEAD OBSERVER PROGRAM. DEAD 

UNIDENTIFIED 

SEA LION 2019 7 25 CATCH SHARES BOTTOM TRAWL DEAD OBSERVER PROGRAM. DEAD 

UNIDENTIFIED 

SEAL 2019 1 18 

HAWAII LONGLINE 

SHALLOW SET 

FISHERY 

OFFSHORE CA SI 

HOOKED IN MOUTH (HOOK OBSERVED IN UPPER HALF) 

BY 18/0 OFFSET FLAT CIRCLE HOOK (5.0MM DIAMETER). 

ANIMAL WAS STRUGGLING AND VOCALIZING, AND CREW 

QUICKLY CUT THE LINE: HOOK, 6.3M MONOFILAMENT 

LEADER, 75G WEIGHT, AND 9.3M BRANCHLINE LEFT ON 

ANIMAL. OBSERVER PROGRAM. 

SI 

UNIDENTIFIED 

WHALE 2016 4 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN 

FRANCISCO CA SI (PRORATE) WHALE SWIMMING NORTH WITH 2 BUOYS TRAILING, GEAR AMOUNT AND CONFIGURATION UNKNOWN. SI (PRORATE) 

UNIDENTIFIED 

WHALE 2016 5 13 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) 

WHALE TRAILING A BLUE BUOY OFF JULIA PFEIFFER 

BURNS STATE PARK, TRAVELING NORTH WITH OTHER 

WHALES. DESCRIBED AS BIG BLUE PLASTIC BUOY 

STUCK TO WHALE'S SIDE. AMOUNT OF GEAR AND 

CONFIGURATION UNKNOWN. PHOTOS INCONCLUSIVE 

FOR SPECIES ID. PROBABLE SUBSEQUENT RESIGHTS IN 

MONTEREY BAY THE NEXT DAY, UNIDENTIFIED WHALE 

DESCRIBED AS DRAGGING BLUE OBJECT. 

SI 

(PRORATE) 

UNIDENTIFIED 

WHALE 2016 5 15 

UNIDENTIFIED 

FISHERY 

INTERACTION 

SAN MATEO CA SI (PRORATE) 

NORTHBOUND WHALE TRAILING TWO CRAB BUOYS 

ABOUT 50-70 FT. BEHIND. 1 BUOY ORANGE AND THE 

OTHER SMALLER AND WHITE ABOUT 5 FEET FROM 

ORANGE BUOY. GEAR AMOUNT AND CONFIGURATION 

UNKNOWN. 

SI 

(PRORATE) 

UNIDENTIFIED 

WHALE 2016 5 23 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MONTEREY CA SI (PRORATE) UNKNOWN VESSEL REPORTED ENTANGLEMENT IN 'CRAB GEAR' TO USCG. GEAR AMOUNT AND CONFIGURATION UNKNOWN. SI (PRORATE) 

UNIDENTIFIED 

WHALE 2016 9 28 

UNIDENTIFIED 

FISHERY 

INTERACTION 

MARIN CA SI (PRORATE) 

WHALE NOT MOVING, WITH ASSOCIATED LINE AND 

ORANGE BUOY. IN SAME AREA AS 9/26/2016 HUMPBACK 

WHALE THAT WAS NOT MOVING AND TRAILING 4 

ORANGE POLYBALLS. AMOUNT AND CONFIGURATION OF 

GEAR UNKNOWN. EVIDENCE ANIMAL IS ANCHORED. 

SI 

(PRORATE) 
Species Stock YYYY MM DD Source County State Initial Narrative Final 

UNIDENTIFIED WHALE SWIMMING NORTH JUST OUTSIDE UNIDENTIFIED UNIDENTIFIED SI SURF LINE TRAILING A STYROFOAM BUOY NEAR THE SI 2018 5 13 FISHERY VENTURA CA 

WHALE (PRORATE) DORSAL FIN. GEAR TYPE, AMOUNT AND (PRORATE) INTERACTION CONFIGURATION UNKNOWN. 

A CONTAINER VESSEL (HORIZON SPIRIT) STRUCK A 

WHALE APPROXIMATELY 12NM SW OF SAN NICOLAS 

UNIDENTIFIED SI ISLAND. VESSEL REDUCED SPEED AFTER IMPACT. 2018 6 2 VESSEL STRIKE VENTURA CA SI 

WHALE (PRORATE) WHALE WAS ESTIMATED AT 45 FT IN LENGTH. SERIOUS 

INJURY BASED ON SIZE AND SPEED OF VESSEL (272 

FEET AND >10 KTS). 

UNIDENTIFIED REPORT OF A WHALE TRAILING AN ORANGE BUOY FROM UNIDENTIFIED SI SI 2018 8 20 FISHERY CURRY OR ITS MOUTH. GEAR CONFIGURATION AND AMOUNT 

WHALE (PRORATE) (PRORATE) INTERACTION UNKNOWN. 

NEWS REPORT: A BREACHING WHALE CAUSED A 10-

FOOT-LONG BOAT TO CAPSIZE WITH SEVEN PEOPLE UNIDENTIFIED SI SI 2018 10 2 VESSEL STRIKE MONTEREY CA ONBOARD IN BREAKWATER COVE. NO DETAILS ON 

WHALE (PRORATE) (PRORATE) POTENTIAL INJURY TO WHALE. PRORATED SERIOUS 

INJURY UNDER CRITERION L7B. 

UNIDENTIFIED SI 2018 10 2 VESSEL STRIKE MONTEREY CA WHALE (PRORATE) 

NEWS REPORT: OFF HOPKINS POINT, ACCORDING TO 

WITNESS MARGE BRIGADIER, A MAN WHO WAS BOATING 

WITH THE WOMAN SAID THEY WERE CRUISING 

THROUGH THE WATER WHEN THEY HIT A BUMP. "THEY 

HIT SOMETHING THAT HE THOUGHT COULD ONLY HAVE SI BEEN A WHALE. WOMAN WAS THROWN AGAINST A 20- 

(PRORATE) FOOT-LONG POWER BOAT'S GLASS WINDSHIELD AND 

SUFFERED MODERATE INJURIES TO HER HEAD AND 

ARM. NEWS VIDEO SHOWS BROKEN WINDSHIELD AND 

BLOOD. NO DETAILS ON POTENTIAL INJURY TO WHALE. 

PRORATED SERIOUS INJURY UNDER CRITERION L6B. 

UNIDENTIFIED 2020 8 11 VESSEL STRIKE LOS ANGELES CA DEAD WHALE 

M/V HORIZON PACIFIC (CONTAINER VESSEL) REPORTED 

THEY HAD STRUCK A WHALE IN POSITION 33-14N 119-

12.3W. AT 0800T THE M/V HORIZON PACIFIC UPDATED 

THAT THE WHALE HAS FALLEN OFF THE BULB OF THE 

SHIP IN POSITION 33-33-.50N 118-25.50W. FRESH DEAD. DEAD 

VESSEL SIZE =247 FEET, CRUISING SPEED = 20 KTS (> 65 

FT AND >10 KTS). SPEED IS ASSUMED, NOT KNOWN, 

BASED ON LOCATION OF REPORTED STRIKE AND 

VESSEL PROFILE LISTED AT VESSELFINDER.COM. 

Appendix 1. Human-marine mammal interaction records reviewed for injury and mortality, 2016-2020.