c

(

•

~~,. OF ('0

q."'~ .; :.c,~ ~ ~->\.d ~ ~J!( (\ Q """~ '"

* ~::i~ * NOAA Technical Memorandum NMFS-AFSC-5 c: -" Of

'1-~ "1.1' 0 ~(j

~<) -~. +'<;

S7'.qTES Of p.:

Summary of Observer Sampling of

Domestic Groundfish Fisheries

in the Northeast Pacific Ocean and

Eastern Bering Sea, 1990

by

Michael Guttormsen, Renold Narita, Jessica Gharrett,

Galen Tremble, and Jerald Berger

u.s. DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration

National Marine Fisheries Service

Alaska Fisheries Science Center

November 1992

••
NOAA Technical Memorandum NMFS

The National Marine Fisheries Service's Alaska Fisheries Science Center

uses the NOAA Technical Memorandum series to issue informal scientific

and technical publications when complete formal review and editorial

processing are not appropriate or feasible. Documents within this series

reflect sound professional work and may be referenced in the formal

scientific and technical literature.

The NMFS-AFSC Technical Memorandum series of the Alaska Fisheries

Science Center continues the NMFS-F/NWC series established in 1970 by

the Northwest Fisheries Center. The new NMFS-NWFSC series will be used

by the Northwest Fisheries Science Center.

This document should be cited as follows:

Guttormsen, M., R. Narita, J. Gharrett, G. Tromble, and J. Berger.

1992. Summary of observer sampling of domestic groundfish fisheries

in the northeast Pacific Ocean and eastern Bering Sea, 1990. U.S.

Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-5, 281 p.

Reference in this document to trade names does not imply endorsement by

the National Marine Fisheries Service, NOAA.
NOAA Technical Memorandum NMFS-AFSC-5

Summary of Observer Sampling of

Domestic Groundfish Fisheries in the

Northeast Pacific Ocean and

Eastern Bering Sea, 1990

by

Michael Guttormseri, Renold Narit~, Jessica Gharrett~

Galen Tromble~ and Jerald Berger'

'Alaska Fisheries Science Center

7600 Sand Point Way N.E., BIN C-15700

Seattle, WA 98115-0070

2 National Marine Fisheries Service

Alaska Region

P.O. Box 21668

Juneau, AK 99802

u.s. DEPARTMENT OF COMMERCE

Barbara Hackman Franklin, Secretary

National Oceanic and Atmospheric Administration

John A. Knauss, Administrator

National Marine Fisheries Service

William W. Fox, Jr., Assistant Administrator for Fisheries

November 1992
This document is available to the public through:

National Technical Information Service

U.S. Department of Commerce

5285 Port Royal Road

Springfield, VA 22161
iii

ABSTRACT

This report summarizes the 1990 domestic groundfish observer

program and domestic groundfish activities in the eastern Bering

Sea and Aleutian Islands region, the Gulf of Alaska region, and

off the Washington-Oregon-California coast. Data contained

herein provide estimates of the domestic groundfish catches and

bycatch of Pacific salmon (Oncorhvnchus spp.) , Pacific halibut

(HiDDoalossus stenolepis), snow (Tanner) crabs (Chionoecetes

spp.), king crabs (Paralithodes spp. and Lithodes spp.), and

Pacific herring (CluDea Dallasi). Estimates of rockfish and

flatfish catches are tabulated by species groups and also by

species.

v

CONTENTS

Page

Introduction . History of U.S. Groundfish Fisheries •••

Observer Sampling Procedures •••••••••••

Observer Coverage of Fishing Fleets ••••••• Methods of Calculation •••••••••••••••••••

Estimates of Domestic Groundfish Catches ••

Estimates of Domestic Bycatch of Pacific Salmon,

Pacific Halibut, Snow (Tanner) Crabs, King Crabs,

and Pacific Herring ••••••••••.•••••••••••

Target Fisheries .......•..............•..

Estimates of Rockfish and Flatfish Catch

by Species 7

.........

Summary of Observer Sampling for Bering Sea and

Aleutian Islands Domestic Groundfish Fisheries.

Area of Sampling . Catch Allocations .

Estimates of Domestic Groundfish Catches •••

Restr ictions . Summary of Data Collected ••....•.•••••••••

Observations of Fishing Gear-Marine Mammal Interactions . Observations of Fishing Gear-Sea Bird

Interactions .

Bycatch of Prohibited Species .. Pacific Salmon ..••..

Pacific Halibut .••..•

Snow (Tanner) Crabs ••

King Crabs . Pacific Herring •••••••

Rockfish Catch by Species ••••••

Flatfish Catch by Species •••••••••••••••••

Tables and Figures for the Bering Sea and

Aleutian Islands Region •••••..•••••

Summary of Observer sampling for Gulf of

Alaska Domestic Groundfish Fisheries ••.

Estimates of Domestic Groundfish Catches.

Restrictions .

Summary of Data Collected •••.•••••.....••..

Observations of Fishing Gear-Marine Mammal

Interactions . Observations of Fishing Gear-Sea Bird

Interactions .

Bycatch of Prohibited Species.

Pacific Salmon ..•••.

Pacific Halibut •••••.

Snow (Tanner) Crabs •.

King Crabs .••........

1

2

4

5

6

6

6

7

13

13

13

13

14

15

16

16

16

16

18

20

22

24

25

25

26

149

149

149

150

150

150

151

151

152

153

155
vi

Rockfish Catch by Species •••••••••••••••••••••••••••••• 157

Flatfish Catch by Species •••••••••••••••••••••••••••••• 157

Tables and Figures for the Gulf of

~JLCle;~CL 1tE!~jl()n•••••••••••••••••••••••••••••••••••••••• JL!)~

Summary of Observer Sampling off the Coasts

of Washington, Oregon, and California ••••••••••••••••••• 271

Estimates of Domestic Groundfish Catches ••••••••••••••• 271

Bycatch of Prohibited species •••••••••••••••••••••••••• 271

Pacific Salmon ...•..........•..................•..•. 271

Pacific Halibut 271

Rockfish Catch by Species •••••••••••••••••••••••••••••• 271

Flatfish Catch by species •••••••••••••••••••••••••••••• 272

Tables and Figures for the

Washington-Oregon-California Region •••••••••••••••••• 273

citations 279
INTRODUCTION

The year 1990 was the first full year of federally mandated

observer coverage in the U.s. domestic groundfish fishery off

Alaska. The domestic observer program for groundfish was the

result of amendments to the fishery management plans for the

Bering Sea and Aleutian Islands and Gulf of Alaska regions.

Previously, amendments to the Marine Mammal Protection Act in

1988 that were implemented in August 1989 had mandated between 20

and 35% observer coverage of the Alaskan trawl fisheries.

Observer coverage in 1990 of the U.s. domestic trawl fishery off

the Washington, Oregon, and California coasts, on the other hand,

was voluntary; however, the four vessels involved in this fishery

had observers aboard during their entire fishing operations.

The observers' objectives were to 1) determine the

incidental catches of marine mammals and other species whose

retention is prohibited by U.s. regulations, 2) determine the

total catch and catch composition of groundfish, 3) provide

information needed to assess the biological status of the various

stocks of fish, and 4) report possible violations of U.s. fishing

regulations. This report summarizes observer data collected

aboard domestic groundfish vessels operating within the U.s. 200-

mile Exclusive Economic Zone (EEZ) of the northeast Pacific Ocean

and eastern Bering Sea in 1990. The report also provides

statistics on the catch of groundfish and prohibited species

taken in the groundfish fisheries of the Bering Sea and Aleutian

Islands and Gulf of Alaska regions. A description of gear types

used in this paper is presented in Table 1. While aboard

vessels, observers obtained information on the location,

duration, average depth, and catch weight of each trawl haul,

longline set, or pot set made while they were on board. They

sampled several hauls or portions of longline or pot sets each

day to determine species composition by weight, the incidence of

species whose retention was prohibited, incidental take of marine

mammals, and the age and length composition of designated

species. In addition, observers described fishing strategies and

sampling methods used and reported possible violations of U.s.

regulations.
2

HISTORY OF U.S. GROUNDFISH FISHERIES

U.S. fishermen made only limited use of groundfish resources

in the Bering Sea and the northeast Pacific Ocean prior to

extensive fishing of large-scale foreign fisheries in these

regions. Virtually ignored by the U.S. fiShing industry were the

expansive groundfish stocks of walleye pollock (Theraqra

chalcoqramma) and flatfish (Pleuronectidae), which in recent

years have made up a significant percentage of the world's

groundfish catch (Marasco and Aron 1991). Domestic fishermen in

small owner-operated vessels traditionally fished in coastal

waters. with the exception of handline fishing for Pacific cod

which began in Alaskan waters in the late 1880s (Cobb 1927),

domestic fishermen concentrated fishing effort on species of high

market value. In Alaska, primary catch species were Pacific

salmon (Oncorhvnchus spp.), Pacific halibut (Hippoqlossus

stenolepis), Pacific herring (Clupea pallasi) for roe, sablefish

(Anoplopoma fimbria), pink shrimp (Pandalus spp.), king crabs

(Paralithodes spp. and Lithodes spp.), and snow (Tanner) crabs

(Chionoecetes spp.). As late as 1980, major groundfish species

(walleye pollock, flatfish, and rockfish) made up less than 1% of

the U.S. commercial catch in Alaska (Huppert 1991). In the

Washington-Oregon-California region, demersal trawling for

rockfish (Sebastes spp.) and flatfish (Pleuronectidae) and pot

fishing for sablefish were the major domestic fisheries prior to

1980.

Large-scale commercial groundfish fisheries were pioneered

by foreign nations, led by Japan, which expended the most effort

of any nation in Alaska waters (Chitwood 1969; Bakkala et ale

1979). In 1930, Japan initiated limited mothership fisheries in

the eastern Bering Sea, harvesting for the first time large

quantities of walleye pollock and flatfish for reduction into

fish meal. These fisheries were ended by World War II, but

resumed from 1954 to 1957 when the flatfish catch, composed

mainly of yellowfin sole (Pleuronectes asper), was frozen.

In 1958, the U.S.S.R. entered the Bering Sea fishery for

flatfish, and along with Japan initiated fish meal operations,

which soon became one of the largest users of the flatfish

resource. The total flatfish catch peaked at 610,000 metric tons

(t) in 1961 and then suddenly declined to 114,000 t in 1963.

During the period from 1958 to 1963, Japan's flatfish freezing

fleets and longline-gillnet mothership fleets expanded fishing

effort along the entire continental slope of the Bering Sea.

Both nations expanded fishing operations into the Gulf of Alaska

and along the Washington-Oregon-California coast. Principal

species harvested were Pacific halibut, Pacific ocean perch

(Sebastes alutus), other rockfish, and sablefish.
3

In 1964, when Bering Sea yellowfin sole catches were in

decline, a new automated process was developed to convert walleye

pollock into surimi, a minced fish meat used to make a variety of

fish-based products. Large Japanese mothership processors with

their fleets of catcher boats began shifting their main fishing

effort to walleye pollock, the largest single fish resource in

the North Pacific Ocean. Walleye pollock catches reached a peak

of 1.9 million t in 1972. In 1973 and 1974, catch quotas were

negotiated by the united States with Japan and the U.S.S.R., and

restrictions on fishing were enacted due to evidence of declining

walleye pollock abundance (Alton and Bakkala 1966).

Meanwhile, foreign vessels using bottom trawls in the Gulf

of Alaska and along the Washington-oregon-California coast

quickly depleted the limited and vulnerable rockfish stocks. In

the Gulf of Alaska, Soviet fishing shifted to walleye pollock,

Atka mackerel (Pleuroarammus monoptervaius), and flatfish, while

Japan began to concentrate on the sablefish resource with pot and

longline gear. For 1966, the first year of foreign fishing off

the U.S. West Coast, Japan's annual rockfish catch was 8,000 t,

but by 1968 its annual catch for rockfish had dropped to only a

few hundred metric tons. Also in 1966, the U.S.S.R. caught

24,000 t of Pacific ocean perch and 136,000 t of Pacific whiting

(Merluccius productus), initiating the important mothership

Pacific whiting fishery. Later, while rockfish catches

drastically declined and fishing effort for those stocks ceased,

the Pacific whiting catch of the U.S.S.R. increased to a record

231,000 t in 1976 (Nelson et al.1981). Midwater trawling was

prohibited beginning in 1973 to protect depleted rockfish stocks.

During the late 1970s and early 1980s, Japan and the

U.S.S.R. were joined by four other countries which participated

in the foreign fishery on a smaller scale: the Republic of Korea,

Poland, Taiwan, and West Germany.

The first steps toward Americanization of the groundfish

fisheries were taken in 1976 when the united States enacted the

Magnuson Fishery Conservation Management Act (MFCMA) to conserve

U.S. fishery resources and promote development of the U.S.

domestic groundfish fishing industry. The Act established the

fishery conservation zone, extending jurisdiction from U.S.

coastlines seaward to 200 miles. In 1978, U.S. fishing vessels

initiated joint venture fishing, delivering their Pacific whiting

catch to Soviet processor vessels in the Washington-OregonCalifornia region. When red king crab catches dwindled in the

early 1980s, many U.S. crab fishermen turned to joint venture

groundfish fishing (Marasco and Aron 1991). During the 1980s,

joint venture fishieries developed between the united States and

11 foreign nations and by 1987 virtually displaced foreigndirected fishing.
4

In the late 1980s, capital investment in Alaskan fisheries

increased domestic harvesting and processing capabilities. As a

result, domestic fisheries began to displace joint venture

operations. u.s. groundfish catches rose dramatically, with over

a 100-fold increase in the Bering Sea from 14,000 t in 1981 to

1.7 million t in 1990, and an almost 50-fold increase in the Gulf

of Alaska from 4,500 t to 244,400 t (Table 2). Meanwhile,

domestic catch totals from the Washington-oregon-California

region remained constant at about 100,000 t over the same 10-year

period, with rockfish, flatfish, and sablefish being the most

important species by weight. At the end of 1990, Pacific

whiting, the primary species harvested by the joint venture

fishery, had yet to develop widespread markets in the United

States.

OBSERVER SAMPLING PROCEDURES

The sampling procedures used by observers in 1990 on

domestic vessels were similar to those used in foreign and joint

venture fisheries and have been described previously by Nelson

et ale (1981) and French et ale (1981). While on vessels using

trawl gear, observers determined the species composition of the

catch by taking representative basket samples of selected hauls.

Individuals of each species in the samples were then counted and

weighed. If the catch was composed of a high percentage of one

species, the observer often determined the composition of the

entire haul by separating, counting, and weighing all nontarget

species. The weight of the target species catch was calculated

by Subtracting the weight of the other species from the total

haul weight. The numbers of the target species were obtained by

dividing the total weight of the species catch by the average

weight per fish, determined from a sample of the catch.

Observers aboard vessels using longline or pot gear determined

the species composition by sampling several pots or sections of

the longline, then expanded the sampling results to the entire

number of pots or hooks in the set.

For those species for which additional biological

information was desired, observers measured length frequencies

from random samples and collected otoliths or scales from

subsamples stratified by length and sex. They also recorded the

incidental catch by number and weight of four species groups that

cannot be retained due to U.S. regulations. These designated

"prohibited species" are Pacific salmon, Pacific halibut, snow

(Tanner) crabs, and king crabs. The weight of the fifth

prohibited species, Pacific herring, was determined through

species composition sampling. Observers also collected data on

the sightings and incidental catch of marine mammals, the design

and dimensions of fishing gear, and methods of fish processing.

Some observers conducted additional special studies.
5

OBSERVER COVERAGE OF FISHING FLEETS

Observer coverage requirements of domestic fishing vessels

were dependent on length overall (LOA), which is the horizontal

distance, rounded to the nearest foot, between the foremost part

of the bow and the aftermost part of the stern. Domestic fishing

vessels and motherships 125 feet LOA or greater required an

observer at all times when fishing for groundfish. Vessels

between 60 feet and 125 feet LOA required observer coverage 30%

of the time while engaged in groundfish fishing each quarter of

the fishing year. Coverage was suspended if the vessel fished

less than 10 days in the quarter. Vessels less than 60 feet LOA

required no observer coverage unless so requested by the National

Marine Fisheries Service (NMFS) Regional Director. Vessels

delivering unsorted catch to motherships were exempt from

coverage requirements. For the purposes of the coverage

requirements, the first fishing day of a trip was defined to be

the first day gear was fished or set, and every succeeding day

was counted until the vessel returned to port.

Required observer coverage of the processing plants and

floating processors was based on annual production. Plants

processing 10,000 t or more of groundfish required that an

observer be present each day the plant received or processed

groundfish, between 1,000 and 10,000 t required coverage of 30%

of the processing days, and less than 1,000 t did not require any

coverage. Additionally, the NMFS Regional Director had the

authority to alter these requirements if warranted by special

circumstances. For example, participants in the Port Moller

Pacific cod trawl fishery were required to have 100% observer

coverage, regardless of their vessel size or length of stay in

the fishery. Waivers to these requirements were sought

throughout the year on a case-by-case basis, but were rarely

granted.

A comparison of coverage days reported by observers to

fishing days reported by vessels shows a coverage level of 96.4%

for fishing vessels greater than 125 feet LOA, 38.5% for fiShing

vessels between 60 and 125 feet LOA (Table 3), and 97.2% for

motherships. Overall, coverage was -60.9%. Data on the number of

fishing days within the domestic groundfish fleet in Alaska were

obtained from vessel and processor logbooks which participants in

the fishery are required to keep and submit to the NMFS. Because

the 1990 logbooks recorded only fishing days instead of vessel

trip days, the vessel trip days given in Table 3 are

underestimated and the rate of observer coverage is

overestimated.

Contractors for the Alaska Fisheries Science Center placed

441 observers aboard vessels and at processing plants which

participated in domestic groundfish fisheries in 1990. Among the
6

vessels whose catches were sampled were 71 catcher/processor

trawl vessels, 116 catcher-only trawl vessels, 31

catcher/processor longline vessels, 78 catcher-only longline

vessels, 8 catcher/processor pot vessels, and 12 catcher-only pot

vessels. Observers were also placed aboard 5 motherships which

processed unsorted catches, and aboard 12 vessels and at 23

processing plants which accepted sorted catches.

METHODS OF CALCULATION

Estimates of Domestic Groundfish Catches

In the Bering Sea and Aleutian Islands and Gulf of Alaska

regions, estimates of U.S. domestic groundfish catches were based

on groundfish reports submitted by processing operations. On a

weekly basis, catcher/processor vessels, motherships, shores ide

processing plants, and floating processor vessels were required

to submit reports containing product weights and discard

estimates of all allocated fish species or species groups to the

NMFS Regional Office in Juneau, Alaska. Standard recovery rates

were then applied by product type to estimate round weights of

retained groundfish catch by species and species group. These

amounts were then combined with the reported discard amounts to

provide total groundfish catch. For catcher/processor vessels in

the Washington-Oregon-California region, groundfish catches were

based on observer estimates of total catch.

Estimates of Domestic Bycatch of Pacific Salmon,

Pacific Halibut, Snow (Tanner) Crabs,

King Crabs, and Pacific Herring

For Pacific salmon, Pacific halibut, snow (Tanner) crabs,

and king crabs, observer data provided an estimate of the mean

incidence or the average number of individuals (or kilograms in

the case of Pacific halibut) caught per metric ton of groundfish

by area, gear type, and target. Estimates of the entire catch of

the prohibited species were then made by applying these observed

bycatch rates to processor groundfish catch reports by area, gear

type, and target fishery. For crab species, regulations required

monitoring of only ~. bairdi and red king crab. For "other" snow

crabs, which include ~. oDilio, ~. anaulatus, ~. tanneri, and the

C. bairdiXC. oDilio hybrid; and "other" king crabs, which include

blue (Paralithodes platypus), golden (Lithodes aeauisDina), and

couesi (L. couesi) king crabs, post-season estimates were made

using the same method described above. Processing operations

provided estimates of Pacific herring catches in the weekly

groundfish reports.
7

Target Fisheries

In 1990, target fisheries were defined using the criteria

given in Table 4. Both the reported catches of groundfish and

bycatch rates were stratified by these target fisheries, along

with gear types and areas, to estimate prohibited species

catches. These estimates were used to monitor fisheries on which

prohibited species bycatch limits were in effect (discussed later

in the Restrictions section of this report). It should be noted

that vessel and observer groundfish reports designated as "other

species" fisheries generally had either large catches of Pacific

cod or else had large catches of walleye pollock but had a

bycatch of Pacific cod exceeding 5% of the total retained catch.

Target criteria used for tables in this report providing

bycatch rates, average weight information, and plots providing

relative bycatch rates are somewhat different than criteria given

in Table 4. Because data were not reported as to whether catches

by species were retained or discarded, calculations were based on

total catches rather than on retained catches. Targets were also

assigned on a haul-by-haul rather than weekly basis. Rates in

the walleye pollock fishery were calculated on gear type rather

than on composition of catch. Additionally, a number of trawl

fisheries were combined to simplify reporting. These fisheries

were Greenland turbot (Reinhardtius hiDDoqlossoides), sablefish,

rockfish, Atka mackerel, and "other species" fisheries. For

longliners, sets consisting of at least 20% sablefish were

classified as "sablefish", or" failing that criteria, were

targeted as "Pacific cod" for sets consisting of at least 20%

Pacific cod. The remaining longline sets were designated as the

"other species" fisheries. FiShing activities of pot vessels

were not divided into specific target fisheries. These vessels

harvested primarily Pacific cod, though a number of operations

were observed that concentrated on sablefish.

Estimates of Rockfish and Flatfish Catch by Species

In 1990, specific catch allocations were set for yellowfin

sole, rock sole (LeDidoDsetta bilineata), and Greenland turbot in

the Bering Sea and Aleutian Islands region and arrowtooth

flounder (Atheresthes stomias) in the Gulf of Alaska region;

thus, catch estimates for these species were prepared by summing

the industry reports for these species. Estimated catches of

rockfish species and other species of flatfish were estimated by

applying average monthly percent species composition by area and

gear type from data collected by observers to vessel-reported

rockfish and flatfish catches. It should be noted that even

though all observers were trained in species identification and

instructed in the use of identification keys, errors in

identification of some species could have been made, and any

errors would affect individual species estimates, as would

identification errors included in vessel-reported catches.
8

Table 1.--Definition of gear types used in u.s. domestic

groundfish fisheries in the Bering Sea and Aleutian

Islands, Gulf of Alaska, and Washington-oregonCalifornia regions in 1990.

Gear type

Bottom trawl

Pelagic trawl

Longline

Pot

Definition

Trawls containing bobbins, rollers, or

chafing gear on the footrope to protect

against contact with the seabed.

Trawls on which neither the net nor the trawl

doors operates in contact with the seabed and

has no protective devices that would make it

suitable for fishing in contact with the

seabed.

A stationary, buoyed, and anchored line

containing baited hooks.

A string of individual baited pots.
9

1,DDDs of metric tons) taken in domestic groundfish fisheries

by region, 1981-90.

PacFIN*. Source:1983457 1982689- 1990 1981

Walleye pollock

30.8 215.5 7.3 02 57.92.6 993.7 1.1 1,390.9 0.2

123.8 24.9 420 38.7 458 34.2 47 87.2 167.5 14.13.4 01 66 1.0 78 450.2 <0.1<0.1 183 23.3 0.0 1.90.1 0.0

23.7 2.7 <0.1 0.9 11 26 7.31.3 <0.1

16.0 0 74 1.7 0.0

<0.1 242 <0.1 6.6 31.154 59.1 0.1 0.020.80 33 0.529 0.0<0.10 <0.1 0.260.2 0.0106.0 295.95.2 659.9 46.584 81 1,185.1 1,706.4 14.4

Walleye pollock

15.4 21.3 399 2.2 01 55.7 666 80. 1.0 0.629.5 2.2 30.9 4.2 301.7 708 8.0 1.111.4 2.91.763 30.8 29.85 8.9 1.912.7 2.7 793.4 0.3 18.4 247 0.4 11 0.4

34.7 045 2.7 70 03 1.5 52 0.4

<0.1 0.1365 780.1 <0.1<0.1 <0.10 0.3 <0.1111.44.8 33.2 244.4 9.1 61.0 143.8674 8.0 4.5

Pacific whiting

12.8 2.7 11 39.5 48 69 7.4 10 0.8

<0.1 <0.1

0.00.0 <0.10.9643 3 2.2 11 1.3

14.5332 18.54127 10.83 91 11.4

3.89 26 3. 41 27 1.9 3.3

0.9 16430 0.8 1.4 1.4

60.6 457 38.46255 39.3 401382.3 57.930.526 2778.99 24607.7 25.90.36458 0.60.21 0.5

<0.10 <0.10 0.0

119.0 89.9 913 82. 9439787.6 103.2

Note: 1990 Bering Sea and Aleutian Islands and Gulf of Alaska data provided by NMFS Regional Office,

Juneau, AK.

Discarded amounts are included in NMFS Regional Office data but not in PacFIN data.

All catches include only U.S.-caught and -processed amounts.
10

Table 3.--Annual summary of vessel fishing trip days and observer

coverage days in u.s. domestic groundfish fisheries in

the Bering Sea and Aleutian Islands, Gulf of Alaska,

and Washington-Oregon-California regions, 1990·.

Observer Vessel

fishing

coverage Percent

coverage days trip daysb

18,856 96.4% 19,558

feet and longer LOAc

Catcher/processor and

4,351 38.5% 11,300

60 and 125 feet LOA

Catcher/processor and

0.0% 0 7,695

than 60 feet LOA

Motherships

97.2% 788 811

Total 39,364 23,995 60.9%

·Coverage days begin on the first day a vessel sets its fishing

gear and end when it returns to port.

~essel logbooks in 1990 recorded fishing days instead of vessel

trip days, thus the percentage of days with observer coverage is

overestimated. Vessel fishing days do not include catcher boats

that delivered catch to either foreign or domestic motherships.

CLength overall (LOA) is the horizontal distance, rounded to the

nearest foot, between the foremost part of the bow and the

aftermost part of the stern.
11

Table 4.--Definitions of target fisheries used for inseason

management in the Bering Sea and Aleutian Islands and

Gulf of Alaska regions in 1990.

Targetl

Flatfish fisherY

Yellowfin soleI

other flatfish

Non-flatfish fisheries

Pollock midwater

Pollock bottom

Turbot

Sablefish

Rockfish

other

Akta mackerel

other

criteria2 (in descending priority)

Sum of flatfish species ~20%.

(Excluding arrowtooth flounder,

Greenland turbot, and Pacific halibut in

the Bering Sea and Aleutian region and

Pacific halibut in the Gulf of Alaska

region.)

Pollock ~95%. (Pelagic trawl only.)

Pollock and Pacific cod >50% and Pacific

cod <5%.

Greenland turbot and arrowtooth flounder

>20%. (Bering Sea and Aleutian Islands

region only.)

Sablefish ~20%.

All species of rockfish ~20%.

Pollock and Pacific cod >50% and Pacific

cod ~5%.

Atka mackerel >20%.

Fails to meet any of the above criteria.

lTargets were calculated for weekly processor and observer reports

for each area fished and gear type used.

2Based on retained weight of the species groups in relation to total

retained catch.

13

SUMMARY OF OBSERVER SAMPLING FOR BERING SEA AND ALEUTIAN

ISLANDS DOMESTIC GROUNDFISH FISHERIES

Area of Sampling

The area sampled by observers in the eastern Bering Sea lies

within the U.S. EEZ off the Alaskan coastline and the Aleutian

Islands. In 1990, zones and areas defined by the North Pacific

Fishery Management Council (NPFMC) Bering Sea Groundfish Fishery

Management Plan (FMP) Amendment 12A were used and are shown in

Figure 1. Zones 1, 2, and 3 are regions designated in management

plan Amendment 12A protecting crab and Pacific halibut stocks.

These three zones are further divided into NPFMC regulatory and

reporting areas: Zone 1 = Areas 511, 512, and 516; Zone 2 = Areas 513, 517 (also designated as Zone 2H), and 521; Zone 3 = Areas 514, 515, 522, 530, and 540. No fishing occurred in Area

530, and this area is not included in the tables in this report.

Catch Allocations

The 1990 domestic annual harvest (DAH), which consists of

domestic annual processing (DAP--the total amount of groundfish

expected to be both caught and processed by U.S. groundfish

fisheries) and joint venture processing (JVP--the total amount of

groundfish allotted to be caught by U.S vessels and delivered to

foreign processing vessels), accounted for the entire 2 million t

allowed to be taken within the u.S. EEZ in the Bering Sea and

Aleutian Islands region. The domestic fisheries received an

initial allocation of 1,495,320 t, the joint venture received an

allocation of 252,382 t, and a reserve was set aside of 252,298

t. Releases from reserves and reapportionment from unused joint

venture allocations raised the final domestic allocation to

1,866,691 t.

Estimates of Domestic Groundfish Catches

Domestic groundfish vessels caught an estimated 1.7 million

t or 91.4% of the final DAP allocation in 1990 (Table 5). A

detailed breakdown of the 1990 groundfish catches by month, NPFMC

area, gear type, and target fishery is provided in Guttormsen et

al. (1992a). Walleye pollock, the major target fishery of the

domestic groundfish fleet, accounted for 81.5% or 1,390,891 t of

this amount. For walleye pollock, 100.7% of the allocation was

caught, and 8.5% of the total catch was discarded. Pacific cod

accounted for 167,459 t or 9.8% of the total groundfish catch.

For Pacific cod, 87.3% of the allocation was caught, and 7.0% of

the total catch was discarded. The remaining 11 species or

species groups accounted for 8.7% of the total catch. None of

the 11 individually accounted for more than 1.4% of the total
14

groundfish catch. Percentage of the DAP caught varied widely for

the remaining 11 species and species groups, ranging from 15.0%

for yellowfin sole to 127.2% for Greenland turbot. Reported

discarded amounts were similarly variable, ranging from 0.7% of

the sablefish catch to 94.2% of the "other" fish category.

Overall, 11.6% of the allocated groundfish caught in 1990 were

reported to be discarded.

The distribution of domestic groundfish catch is presented

by NPFMC area in Figure 2. The largest amount of groundfish was

caught in Area 521 (692,100 t or 41% of the total catch). The

groundfish catch in other areas was 333,400 t (or 20%) in Area

515, 230,200 t (or 13%) in Area 517, 134,200 (or 8%) in Area 540,

118,100 t (or 7%) in Area 513, 104,100 t (or 6%) in Area 511,

66,400 t (or 4%) in Area 522, 15,400 t (or 1%) in Area 514,

11,900 t (or 1%) in Area 516, and 700 t (or less than 1%) in Area

512.

Restrictions

Previous emergency regulations that created the Port Moller

restricted area established a limit on the number of red king

crab taken as bycatch by groundfish fisheries, and required a

certain percentage of observer coverage to be carried over into

Amendment 12A, thus trawling was still prohibited in the area

between long. 1600W and 162°W and south of lat. 58°N and the

southern portion of this area is reserved for a controlled

domestic trawl fishery for Pacific cod. In 1989, the NPFMC

Bering Sea Groundfish FMP Amendment 12A was enacted as a followup to Amendment 10 to control the bycatch of red king crab and

Chionocetes bairdi during yellowfin sole and other flatfish

fisheries and to protect the stocks of these two crab species

from further decline. Amendment 12A also designated zones which

could be closed to a fishery whenever specified bycatch limits

were attained (Fig. 1), and established limits on the bycatch of

Pacific halibut in trawl fisheries. Pacific halibut bycatch is

accumulated over the entire Bering Sea region; attainment of the

primary quota closes Zones 1 and 2H, while attainment of the

secondary quota closes the entire Bering Sea and Aleutian Islands

region.

In 1990, the u.S. domestic flatfish trawl fishery received

bycatch limits of 138,600 red king crab in Zone 1, 529,600

~. bairdi in Zone 1, and 1,100,000 ~. bairdi in Zone 2. For

Pacific halibut, the flatfish fishery received a primary quota of

467 t and a secondary quota of 567 t. Domestic trawl vessels

targeting on non-flatfish species received a limit of 11,400 red

king crab in Zone 1, 260,400 ~. bairdi in Zone 1, and 890,000

C. bairdi in Zone 2. For Pacific halibut, the non-flatfish

fishery received a primary quota of 3,273 t and a secondary quota
15

of 3,966 t. No bycatch limits were set for longline or pot

fishery vessels in 1990.

All prohibited species zone closures in the 1990 Bering Sea

domestic groundfish fisheries occurred due to attainment of

Pacific halibut quotas. Attainment of the primary and secondary

Pacific halibut quotas closed flatfish fishing in Zones 1 and 2H

on March 14 and on November 16 for the remainder of the Bering

Sea. Attainment of the primary and secondary Pacific halibut

quotas restricted non-flatfish fisheries to the use of pelagic

trawl gear as of May 30 in Zones 1 and 2H and as of June 30 for

the rest of the Bering Sea.

Summary of Data Collected

In the Bering Sea and Aleutians Islands region, observers

sampled 23,169 trawl hauls, 4,797 longline sets, and 737 pot sets

for groundfish composition and prohibited species incidence.

Among biological data collected by observers in 1990 were 621,190

lengths and age structures from 23,771 individuals of 12

groundfish species (Table 6). These data and specimens were used

by scientists of the Status of Stocks Task at the Alaska

Fisheries Science Center for use in determining biomass estimates

and year-class strengths, and results are reported in "Stock

Assessment and Fishery Evaluation for the Groundfish Resources of

the Bering Sea/Aleutian Islands Region as Projected for 19911".

Also, observers collected stomachs from 780 walleye pollock,

565 Pacific cod, 339 arrowtooth flounder, 265 yellowfin sole, 61

flathead sole (Hippoqlossoides elassodon), and 51 Pacific halibut

and scanned the stomach contents of 1,253 Pacific cod, 150 Alaska

plaice (Pleuronectes quadrituberculatus), and 13 rock sole.

Results from analyses of these stomach contents were used to

provide estimates of predation mortalities of groundfish and crab

species and as input for multispecies models.

From prohibited species, observers recorded 38,594 crab

carapace lengths and widths, 5,953 Pacific salmon lengths, and

38,561 Pacific halibut lengths. Observers also collected scales

from 5,953 Pacific salmon for species verification and age

analysis. Condition was recorded for 225,542 Pacific halibut,

218,217 snow crabs, and 12,211 king crabs. Observers also

recovered 2 tagged chinook (Oncorhynchus tshawytscha) and

1 tagged chum salmon (Q. keta).

1Available from the North Pacific Fishery Management

Council, P.O. Box 103136, Anchorage, AK 99510.
16

Observations of Fishing Gear-Marine Mammal Interactions

Observers monitored 1,224,367 t of groundfish taken in

27,416 trawl hauls and 45,505 t taken in 4,951 longline sets for

fishing gear-marine mammal interactions in Bering Sea and

Aleutian Islands groundfish fisheries in 1990 (Table 7). Over

one-half of the observed interactions, affecting 43 of the

81 animals, were acts of deterrence which occurred mainly to

protect the catch from these animals. Of the other animals

involved in interactions, 18 animals died from being caught in

fishing gear (freshly dead), 15 were decomposed, 3 were caught

and released unharmed, 1 was caught but released without the

condition being noted, and 1 was caught and released in an

injured condition. Thirty-eight Steller sea lions (EumetoDias

iubatus) were encountered, 10 of which were freshly dead.

Another 13 of these animals were deterred in a single haul and

10 more deterred in a single longline set. Twenty killer whales

(Orcinus orca) were deterred, also in a single longline set.

Other species encountered were 6 Dall's porpoises (Phocoenoides

dalli, 5 freshly dead), 4 walruses (Odobenus rosmarus, none

freshly dead), 4 northern fur seals (Callorhinus ursinus, none

freshly dead), 1 ribbon seal (Phoca fasciata, freshly dead),

1 harbor seal (Phoca vitulina, freshly dead), and 1 harbor

porpoise (Phocoena Dhocoena, freshly dead). Also, of the

7 marine mammals not identified to species, 5 were decomposed,

1 was dead, and the condition of 1 was unknown.

Observations of Fishing Gear-Sea Bird Interactions

In trawl hauls and longline sets sampled for groundfish

species and prohibited species incidence, sea birds were observed

in 70 (0.3%) hauls and 247 (5.1%) sets, respectively. Numbers

extrapolated from sample weight to haul and set weight yielded

649 birds (627 kg) in sampled trawl hauls and 3,287 sea birds

(3,350 kg) in sampled longline sets. Because of the difficulty

associated with sea bird indentification, observers recorded all

seabird catch as the single category "birds".

Bycatch of Prohibited Species

Pacific Salmon

Bycatch rates of Pacific salmon for trawl vessels by gear

type, target fishery, NPFMC area, and month are shown in Table 8.

The highest annual rates occurred in Area 511 for hauls using

pelagic trawl gear which were classified as target "other

species" (0.510 fish/t of groundfish) and walleye pollock (0.122

fish/t). For the "other" fishery, the highest rates occurred in

April (0.768 fish/t, all chinook salmon), and July (1.827 fish/t,
17

all chum salmon). For the walleye pollock fishery, the highest

monthly rates occurred from July through October, ranging from

1.453 fish/t to 0.331 fish/t (primarily chum salmon).

Bycatch rates of Pacific salmon in u.s. domestic groundfish

catches are plotted by 112° latitude and 1° longitude areas by

gear type, target fishery, and quarter in Figure 3. Most of the

highest rates (greater than 0.5 salmon/t) occurred in pelagic

trawl fisheries south of lat. 57°N in Areas 511 and 517 during

the third and fourth quarters. In Area 521, where the major

portion of the midwater catch was taken, most blocks had rates of

zero during the first half of the year and less than 0.1 salmon/t

during the second half. In "other species" pelagic trawl

fisheries, rates exceeded 0.5 salmon/t during the second quarter

in single statistical blocks in Areas 511 and 517. Rates for

bottom trawl fisheries generally ranged from 0 to 0.1 salmon/t,

with a few exceptions. In flatfish fisheries, a rate of greater

than 1.0 salmon/t occurred in a single block along the outer

shelf southeast of the Pribilof Islands in Area 517 during the

second quarter, and rates of greater than 0.1 and less than

0.5 salmon/t occurred in three blocks in the same area during the

first quarter. In the "other" trawl fishery, rates between

0.5 and 1.0 salmon/t occurred in single blocks in Area 522 in the

first quarter and in Area 513 in the fourth quarter.

The estimated u.s. domestic bycatch of Pacific salmon in

1990 was 30,501 fish (Table 9). Chinook salmon accounted for

46.2% of this amount (14,085 fish), and "other" salmon (primarily

chum salmon) accounted for 53.8% (16,416 fish). By gear type,

43.07% of the.chinook salmon were caught with bottom trawl gear,

56.90% were caught with pelagic trawl gear, and 0.03% with

longline gear. "Other" salmon were taken primarily with pelagic

trawl gear (96.58%)--only 3.22% were caught with bottom trawl

gear and 0.21% with longline gear. No Pacific salmon were

observed caught with pot gear. By NPFMC area, the largest

chinook salmon bycatch was taken in Areas 515 (39.6%) and 517

(35.2%). For "other" salmon, nearly half the bycatch (48.5%) was

taken in Area 521.

Bycatch of Pacific salmon by target fishery, zone, and

species are presented in Table 10. The walleye pollock fishery

(pelagic and bottom gear combined) accounted for 78.9% of the

bycatch, taking 90.1% of the Zone 1 bycatch, 76.2% of the Zone 2

bycatch, and 79.4% of the Zone 3 bycatch. However, in terms of

rate of occurrence, the highest rate by zone occurred in the

walleye pollock midwater fishery in Zone 1 (0.102 fish/t); for

all zones combined the highest rate occurred in "other" trawl

fisheries (0.031 fish/t).

The species composition, sex composition, average weight,

and average length of incidentally caught Pacific salmon are

given in Table 11. Chum (53.1%) and chinook salmon (46.2%)
18

accounted for most of the bycatch, with the remainder made up of

coho (0. kisutch; 0.5%), sockeye (0. nerka; 0.1%), pink salmon

(0. gorbuscha; 0.1%). Also, 1 steelhead (0. mvkiss) was caught

in 1990.

Pacific Halibut

Bycatch rates and average weights for Pacific halibut are

presented in Table 12. The highest annual rates for trawl gear

were observed when bottom trawl gear was used in fisheries for

flatfish (rates of 115 kg/t in Area 540 and 70 kg/t in Area 515),

and "other species" (rates of 55 kg/t in Area 515 and 36 kg/t in

Area 522). The lowest annual rates for these two fisheries were

observed in Area 521--1.99 kg/t in the flatfish fishery and

4.12 kg/t in the "other species" fishery. The highest rates in

the walleye pollock fishery were 3.51 kg/t in Area 515 with

bottom trawl gear and 0.19 in Area 511 with pelagic trawl gear.

For longline vessels, the highest annual rates occurred in Area

511 in the "other species" fishery (1,776 kg/t) and the Pacific

cod fishery (1,405 kg/t). Rates of over 100 kg/t were also

observed in the Pacific cod fishery in Areas 515 (327 kg/t) and

512 (118 kg/t), in the sablefish fishery in Areas 522 (147 kg/t),

515 (123 kg/t), 517 (117 kg/t), and 521 (113 kg/t), and in the

"other" fishery in Area 521 (174 kg/t). However, in the Pacific

cod fishery in Areas 521 and 522, where the majority of

groundfish caught by longline vessels was taken, the lowest

annual rates were observed--16 kg/t in Area 522 and 24 kg/t in

Area 521, along with a rate of 17 kg/t observed in the "other

species" longline fishery in Area 522. For pot fishery vessels,

the highest annual rates were observed in Areas 515 (24 kg/t) and

521 (15 kg/t).

The average weight of Pacific halibut caught in the u.s.

domestic groundfish fisheries in 1990 was 3.37 kg and the average

length was 56.8 cm. Average Pacific halibut bycatch weights were

smaller in trawls than in longline or pot sets. The average

weight of 4.31 kg/t in Area 512 in the Pacific cod longline

fishery, which was the lowest for longline and pot vessels,

exceeded all annual average weights for trawl vessels in Areas

511, 512, 513, 514, 515, 516, and 517 with the exception of Area

515 in the "other species" bottom trawl fishery. The smallest

average weights were observed in Zone 1 in the flatfish fishery--

0.66 kg in Area 516, 0.75 kg in Area 511, and 0.82 in Area 512.

The largest average weights were observed in the walleye pollock

fishery (with pelagic gear) in Area 540 (29.36 kg), in the "other

species" longline fishery in Area 522 (19.31 kg), and in the

sablefish longline fishery in Area 540 (15.30 kg).

Pacific halibut incidence rates (kilograms of Pacific

halibut per metric ton of groundfish catch) are plotted in 1/20

latitude by 10 longitude blocks by gear type, target fishery, and
19

quarter in Figure 4. For flatfish and "other" bottom trawl

fisheries, most of the blocks over 10 kg/t during the first and

second quarters were on the continental shelf in Areas 511, 513,

515, and 517. Most rates were lower than 10 kg/t when those

fisheries moved north to Areas 513 and 514 during the third and

fourth quarter after Area 517 and Zone 1 were closed to bottom

trawling because of Pacific halibut bycatch restrictions. For

the pelagic trawl fishery, Pacific halibut incidence rates

generally were less than 1.0 kg/to Most rates were greater than

10 kg/t for the Pacific cod and sablefish longline fisheries

along the outer shelf area (Areas 521, 522, 517, and 515) and

along the Aleutian chain (Area 540).

The estimated u.s. domestic bycatch of Pacific halibut was

7,345 t in 1990 (Table 13). By contrast, the largest amount by

weight. of combined foreign and U.S. joint venture totals since

the inception of the Magnuson Act was only 4,597 t (Guttormsen

et al. 1990), which was taken in 1980. Bottom trawl vessels

caught 4,853 t or 66.1% of the total, followed by longliners,

which caught 2,131 t or 29.0%. Vessels using pelagic trawl gear

(4.62%) and pot vessels (0.29%) accounted for the remaining

bycatch.

Due to a lack of information about mortality of Pacific

halibut taken incidentally in Bering Sea and Aleutian Islands

region in the domestic groundfish fisheries, bycatch in 1990 was

managed as total bycatch and not by mortality. However, Williams

and Wildebuer (1991) examined Pacific halibut viability data from

8,504 trawls, 3,542 longline sets, and 230 pot sets sampled by

observers in 1990, and found that short-term mortality ranged

from 74 to 78% for trawls, 13 to 18% for longlines, and 6 to 10%

for pots. Based on the results of this analysis, they

recommended a 75% mortality rate be used to manage Pacific

halibut bycatch for trawl vessels, a 10% mortality rate for pot

vessels, and a 16% rate for longline vessels be used. Pacific

halibut bycatch for trawl vessels in 1992 was managed by these

recommendations.

The bycatch of Pacific halibut by target fishery and NPFMC

zone is presented in Table 14. Trawl and longline "other

species" fisheries (primarily Pacific cod) took 4,995 t or 68.0%

of the total amount of incidentally taken Pacific halibut, with

trawl vessels taking 46.2, 40.4, and 47.0% of the bycatch in Zone

1, Zone 2, and Zone 3, respectively, with longline vessels taking

2.0, 42.0, and 12.6% of the bycatch in Zone 1, Zone 2, and Zone

3, respectively. In terms of weight of Pacific halibut per

metric ton of groundfish, however, the highest rates occurred in

the sablefish longline (80.7 k9/t) and Greenland turbot fisheries

(50.9 k9/t).
20

Snow (Tanner) Crabs

Bycatch rates and average weights for C. bairdi are

presented in Table 15. In trawl flatfish fisheries, annual rates

of greater than 10 crab/t were observed in Areas 513 (18.801

crab/t) 516 (12.192 crab/t), and 511 (12.059 crab/t). Annual

rates exceeding 10 crab/t were also observed for bottom trawl

hauls classified as "other" targets in Areas 512 (13.104 crab/t)

and 511 (10.254 crab/t). Rates for vessels fishing for walleye

walleye pollock using bottom trawl gear targeting on non-flatfish

species, however, were low, with the only annual rates greater

than 1.0 crab/t occurring for bottom trawlers targeting on

walleye pollock in Area 521. For longline fisheries, annual

rates by NPFMC area were less than 1 crab/t with the exception of

the Pacific cod fishery in Area 512, in which a rate of

3.584 crab/t was observed. Pot fishery vessels showed annual

rates of greater than 10 crab/t in five of the seven NPFMC areas

observed.

The highest annual bycatch rates for "other" snow crabs

occurred in flatfish fisheries (Table 16). "Other" snow crabs

were taken at a rates of 93.975 crab/t in Area 513, 24.812 crab/t

in Area 515, 23.852 crab/t in Area 521, and 18.696 crab/t in Area

514. The lowest annual rates occurred in NPFMC areas in Zone 1

(0.512 crab/t in Area 511, 0.048 crab/t in Area 516, and 0 crab/t

in Area 512. In the walleye pollock fishery, all annual rates

were less than 1.0 crab/t except in Area 513 (1.076 crab/t taken

with pelagic trawl gear) and Areas 522 and 521 (7.127 and 5.494

crab/t, respectively, taken with bottom trawl gear). In "other"

fisheries, there were several rates of greater than 10 crab/t--

12.630 crab/t in Area 515 and 10.690 crab/t in Area 513 using

bottom trawl gear and 16.713 crab/t in Area 514 using pelagic

trawl gear. For longline vessels, annual rates for all target

fisheries and NPFMC areas were 1.0 crab/t or less with the

exceptions of Area 521 in the sablefish fishery (3.060 crab/t)

and Areas 513 and 511 in the Pacific cod fishery (1.029 and

1.008 crab/t, respectively). Annual rates for pot vessels varied

widely by NPFMC area. "Other" snow crabs were taken at a rate of

753.898 crab/t in Area 517 and 384.395 crab/t in Area 522,

compared with 0 crab/t in Areas 512 and 515.

Bycatch rates of g. bairdi in domestic groundfish catches

are shown by 1/20 latitude and 10 longitude statistical areas,

gear type, target fiShery, and quarter in Figure 5. Generally,

the highest rates were observed in bottom trawl fisheries for

flatfish and "other species" and in the pot fishery. During the

first and second quarters, when bottom trawl fishing for flatfish

occurred on the shelf in the southeastern Bering Sea, rates were

frequently greater than 10 crab/t and were occasionally greater

than 25 crab/t in Area 517, Area 511, and Area 516 just north of

the Alaska Peninsula. Also in the first quarter, single blocks

having a rate greater than 25 crab/t were located in Area 521 and
21

Area 515. When Zone 1 and Zone 2H were closed to bottom trawling

during the third and fourth quarters, the flatfish fishery

relocated primarily to Area 513 and the southwestern portion of

Area 514 and rates remained high in Area 514. The "other

species" bottom trawl fishery showed similar trends to that of

the flatfish bottom trawl fishery. Pelagic trawl bycatch rates

were generally less than 1 crab/t along the outer shelf and slope

where most of this fishery's catch occurred. The pot fishery

during the third quarter caught c. bairdi at rates greater than

25 crab/t in three areas: south of st. Matthew Island, on the

outer continental shelf near the Pribilof Islands, and along the

Alaska Peninsula.

The bycatch rates of "other" snow crabs species are plotted

by 1/20 latitude and 10 longitude statistical areas by gear type,

target fishery, and quarter in Figure 6. As in the case of ~.

bairdi, the highest rates were taken by bottom trawl fisheries

for flatfish and "other species" and by the pot fishery. During

the first quarter when bottom trawling for flatfish occurred on

the shelf southwest of the Pribilof Islands primarily in Area 517

and Zone 1, the highest rates (greater than 25 crab/t) were

centered in the northern part of Area 517. In the second quarter,

when bottom trawling extended onto the outer continental shelf,

"other" snow crabs incidence rates were also greater than 25

crab/t northwest of the Pribilof Islands in Area 521. During the

third and fourth quarters, bottom trawling for flatfish relocated

to Areas 513 and 514, where most rates were greater than 25

crab/to The pot fishery in the third quarter, which fished in

these areas of concentration of other snow crabs, also had

similarly high rates in Areas 517, 513, 514, and 521, and

additional high rates south of st. Matthew Island. Unlike the

rates of c. bairdi, higher "other" snow crab rates did not occur

along the Alaska Peninsula but were distributed farther to the

north on the continental shelf.

The estimated U.s. domestic bycatch of ~. bairdi in 1990 is

presented in Table 17. Bottom trawl vessels caught about

1,554,900 or 86.8% of the estimated 1,792,026 ~. bairdi taken in

1990. By NPFMC area, the highest bycatch occurred in Areas 511

(32.7%), 517 (16.8%), and 515 (16.0%).

U.s. domestic groundfish fisheries caught an estimated

3,054,602 "other" snow crabs in 1990 (Table 18). These crabs

were primarily C. opilio. Bottom trawl vessels caught about

2,170,900 or 71.1% of the total bycatch. By NPFMC area, the

highest bycatch occurred in Areas 513 (34.8% of the total amount

caught) and 521 (26.4%). significant amounts were also caught in

Areas 517 (12.9%), 514 (10.9%), and 515 (10.8%).

The bycatch of C. bairdi by target fishery and zone is

presented in Table 19. "Other" trawl fisheries (the major

component of which is Pacific cod) and yellowfin soleI
22

"other" flatfish fisheries accounted for 53.6% and 38.4% of the

total bycatch. By zone, 42.0% of the bycatch was caught in

Zone 1, 38.2% in Zone 2, and 19.7% in Zone 3.

The yellowfin sole/nothern flatfish fishery accounted for

43.3% of the incidentally caught "other" snow crabs (Table 20).

A high amount of bycatch also occurred in the walleye pollock

fishery (20.4% taken by both gear categories combined), the

"other" trawl fishery (19.5%), the pot fishery (8.4%), and the

Greenland turbot fishery (7.7%). The pot fishery caught "other"

snow crabs at the highest rate (180.4 crab/t). By zone, 74.1% of

the bycatch occurred in Zone 2, 22.5% occurred in Zone 3, and

3.4% occurred in Zone 1.

The condition of snow crabs is shown in Table 21. In the

pot fishery, 98.4% of the ~. bairdiXc. oDilio hybrid, 97.3% of

the c. bairdi, and 96.3% of the c. opilio crabs were observed to

be in excellent condition. Mortality was highest in trawl

fisheries, especially for c. anaulatus (80.7% dead) and

c. tanneri (76.4% dead). These species are most commonly found

on the continental slope and are associated with catches of

Greenland turbot and sablefish. For other snow crabs, 51.9% of

the c. oDilio, 37.5% of the c. bairdi, and 29.0% of the

c. bairdixc. oDilio hybrids were dead in observed trawl catches.

For longline vessels, mortality rates ranged from 6.5% for

c. tanneri to 18.8% for c. bairdiXC. oDilio hybrid crab.

The species composition, sex composition, average weight,

and average carapace width of incidentally caught snow crabs are

presented in Table 22. All five species of snow crabs were

observed in groundfish catches sampled by observers. Of these

crabs, c. oDilio (60.0%) and c. bairdi (37.0%) made up the

largest portion of the observed crabs caught, with c. anaulatus

(2.2%), the~. bairdiX~. oDilio hybrid (0.6%), and c. tanneri

(0.2%) making up the remainder.

King Crabs

The highest annual rates for red king crab occurred in

Zone 1 (Areas 511, 512, and 516) and were associated with vessels

using bottom trawl and pot gear (Table 23). Flatfish trawl

vessels caught red king crab at a rate of 5.758 crab/t in Area

512, 5.179 crab/t in Area 516, and 0.963 crab/t in Area 511.

Rates of 12.740 and 2.869 crab/t were observed in Areas 512 and

516, respectively, in "other" fisheries using bottom trawl gear.

The highest rates by NPFMC area for the walleye pollock fishery

were 0.315 crab/t in Area 516 for catches taken with bottom trawl

gear. In the "other" fishery category, a rate of 0.051 crab/t

was observed in Area 514 for catches taken with pelagic trawl

gear. For longline vessels, the only occurrence of red king crab

was observed in the Pacific cod fishery in Area 522 (less than
23

0.001 crab/t). Pot fishery vessels caught red king crab at a

rate of 137.849 crab/t in Area 512. No other annual rate by

NPFMC area exceeded 1 crab/t for pot fishery vessels.

Annual bycatch rates of "other" king crabs were much lower

than those for red king crab (Table 24). The highest annual rate

in the flatfish fishery was 0.726 (in Area 515) and all other

rates were less than 0.5 crab/t. The highest rates in the

walleye pollock fishery and "other" target fisheries using bottom

trawls occurred in Area 540 and were 0.336 and 0.241 crab/t,

respectively. The highest annual rate for longline vessels also

occurred in Area 540 (0.429 crab/t in the "other" target

fishery). The highest rate for vessels using pelagic gear was

0.008 crab/t in "other" fisheries in Area 514. No "other" king

crabs were observed taken by pot fishery vessels.

Bycatch rates of red king crab by 1/20 latitude by 10

longitude areas are plotted in Figure 7. For trawl vessels using

bottom gear, rates of greater than 1 crab/t occurred inside or

near Zone 1 or in the vicinity of the Pribilof Islands. The pot

fishery had rates greater than 10 crab/t in Areas 512 and 511 in

the third and fourth quarters, respectively.

The bycatch rates of "other" king crabs are given by 1/20

latitude by 10 longitude areas in Figure 8. Only bottom trawl

fishing in three isolated blocks caught these crabs at a rate

greater than 10 crab/t: in Area 517 during the third quarter in

the flatfish fishery; in the eastern portion of Area 540 during

the fourth quarter in the walleye pollock bottom trawl fishery;

and in the eastern portion of Area 540 in the second quarter of

the "other species" bottom trawl fishery. "Other species" bottom

trawl fishing in the third quarter caught crabs at an rate of

between 1 and 5 crab/t on the outer shelf in the northwest corner

of Area 521, southeast of the Pribilof Islands in Area 517, and

along the eastern half of the Aleutian Island chain.

Bottom trawl vessels caught about 98,430 of the estimated

107,132 incidentally taken red king crab in 1990 (Table 25). The

bycatch of red king crab occurred mostly in Areas 511 and 516,

accounting for 91.0% of the total number taken by the u.s.

domestic fishery in 1990.

An estimated 25,308 "other" king crabs were taken as bycatch

in 1990 (Table 26). Vessels using bottom trawl gear caught about

24,900 or 98.4% of the total bycatch. Over half of the bycatch

(52.7%) was taken in Area 540, the Aleutian Islands region.

The estimated bycatch of red king crab by target fishery and

NPFMC zone is presented in Table 27. Fisheries for yellowfin

sole and other flatfish took an estimated 84,054 crab or 78.5% of

the total bycatch. Significant bycatch was observed in "other"

fisheries, primarily in the Pacific cod fishery; trawl vessels
24

caught 9,384 crab or 8.8% of the total bycatch and pot vessels

caught 8,262 crab or 7.7%). Pot fishery vessels caught red king

crab at an overall rate of 5.83 crab/to The yellowfin sole/other

flatfish fishery was the only other fishery whose rate exceeded

0.05 crab/t, taking red king crab at a rate of 1.31 crab/to

The bycatch of "other" king crabs occurred primarily in the

rockfish fishery (39.7% of the total bycatch) and the Greenland

turbot fishery (37.6%) (Table 28). These two fisheries also had

the highest overall bycatch rates, with rates of 0.55 crab/t and

0.32 crab/t for the Greenland turbot and rockfish fisheries,

respectively.

All red king crab observed for condition in pot sets were in

excellent condition (Table 29). In trawl fisheries, condition

varied among species. For red king crab and blue king crab, 52.4%

and 48.4%, respectively, of the observed crab were in excellent

condition. On the other hand, only 28.6% of the golden king crab

were in excellent condition.

The species composition, sex composition, average weight,

and average carapace length of incidentally caught king crabs are

given in Table 30. Of the king crabs sampled by observers in

groundfish catches, red king crab were the most common (80.9%),

followed in order by golden king crab (17.3%), blue king crab

(1.7%), and couesi king crab (0.1%).

Pacific Herring

The bycatch of Pacific herring was 2,943.3 t, occurring at a

rate of 1.7 kg/t of groundfish. Bycatch was limited almost

exclusively to pelagic trawls targeting on walleye pollock

(2,934.7 t). The largest part of the bycatch occurred in Areas

521 (1,193.5 t), 517 (976.9 t), and 515 (545.0 t). outside of

these NPFMC areas, the bycatch was 227.9 t. By month, the

largest amounts were taken in August (1,302.3 t) and September

(942.4 t). Significant amounts were also taken during October

(380.9 t), July (170.6 t), and June (145.2 t). The bycatch

during all remaining months was 1.9 t.

Annual bycatch rates of Pacific herring per metric ton of

groundfish are shown by 1/20 latitude by 10 longitude areas in

Figure 9. Rates exceeding 1.0 kg/t occurred primarily in six

concentrations of blocks: southern Area 512 (including southern

Areas 511 and 516), northern Area 511 (including northeastern

Area 513 and southern Area 514), northwestern Area 521 (and

northward into Area 522), eastern Area 514 (including

northeastern Area 511), western Area 514 and eastern Area 522

(including northern Area 513, and southeastern Area 517

(including eastern Area 515).
25

Rockfish Catch by Species

Fourteen species of rockfish were identified by observers in

u.s. domestic catches in the Bering Sea and Aleutian Islands

region in 1.990 (Table 31.). The "other rockfish" group refers to

the seven species that each made up less than 0.1.% of the

rockfish catch. In 1.990, approximately 23,731. t of rockfish were

taken by U.S. domestic groundfish fisheries (Table 32). Over

two-thirds of the total rockfish was taken in Area 540 (the

Aleutian Islands region). Pacific ocean perch was the major

component of the catch in this NPFMC area, accounting for

1.1.,826t or 73.5% of the 1.6,082 t of rockfish catch. Other

species making up a substantial portion of the catch in Area 540

were rougheye rockfish (~. aleutianus, 1.,61.9t), northern

rockfish (~. polvspinus, 1.,235 t), shortspine thornyhead

(Sebastolobus altivelis, 550 t), shortraker rockfish (Sebastes

borealis, 546 t), and dusky rockfish (~. ciliatus, 260 t). The

catch of rockfish in Areas 521. and 51.5 accounted for 6,838 t of

the 7,649 t of rockfish reported outside of Area 540. Pacific

ocean perch accounted for 4,520 t or 96.6% of the rockfish catch

in Area 521. In Area· 515, the predominant catch was Pacific

ocean perch (1,469 t), followed in importance by rougheye

rockfish (340 t), shortspine thornyhead (117 t), and northern

rockfish (115 t).

Flatfish Catch by Species

Eighteen species of flatfish were identified by observers in

1990 (Table 33). The "other flatfish" group refers to seven

species that each made up less than 0.1% of the flatfish catch.

The catch of flatfish was fairly evenly distributed by NPFMC

area, with catches of below 5,000 t only being reported in Areas

512 and 522 (Table 34). In Area 511, in which the highest

percentage of the total flatfish catch occurred (21.9%), rock

sole was the major species taken (11,483 t). Rock sole also made

up over one-half of the flatfish catch in Area 516. Yellowfin

sole was the major species taken in Areas 513 (4,046 t) and 514

(9,280 t). In Areas 515 and 540, Greenland turbot and arrowtooth

flounder were the major species taken. The flatfish catch in

Area 517 was primarily split between flathead sole, rock sole,

Greenland turbot, and arrowtooth flounder. In Area 522,

Greenland turbot, arrowtooth flounder, flathead sole, and Alaska

plaice were the predominant flatfish species caught.
·

·· --- . . . •••••••••••••• ••••••• ••••••••• •••• rA •• _ ••••••••••••••••••••••••••••••••••••••••••••••

//

b'lt(\/

,,)(' /

q.~/

e,./

~"J/ ,/

~"J/ 522 /

N

0\

63°N

61°

59°

55°

57°

53°

...

ALASKA

Gulf of Alaska

511

(Zone 2H)

514

.-: 513 :··

•••..........- . :··

515 ••-",

~"0~ ••' j?/~.'~' ~:>.. 0- ..... ;).

I1'¥· ..

ZONE 3

ZONE 2

"

522

521

ZONE 3 540

550

Outside EEZ

530

175°E 1800 175°W 1700 165° 160°

Figure l.--Bering Sea and Aleutian Islands zones and areas defined by the North

Pacific Fisheries Management Council (NPFMC) for use in placing

restrictions on the incidental catch of crab and Pacific halibut
Table 5.--Estlmated groundflsh catches (In metric tons) reported by u.s. processing vessels and plants In the Bering Sea and Aleutian

Islands region, 1990.

Sped es

Percent Percent Discarded Total Retained Percent

catch catch catch by speddiscarded es caught ofDAp·DAP

1,390,891.2 118,856.1 1,272,035.1 1,381,6428.5X81.51X100.7X

191,898 167,458.5 7.0%9.81% 11,783.2 87.3% 155,675.356,867 47.8% 23,323.7 1.37X 11,147.3 41.0% 12,176.423,500 12.9% 23,318.4 1.37X 3,019.7 99.2% 20,298.7

22,900 15.3% 22,455.0 1.32% 3,444.9 98.1% 19,010.1

25,327 94.2% 20,808.0 19,610.6 1.22%82.2% 1,197.4

16,671.4 14,315.2 2,356.2 85.9%0.98% 32,380 51.5%

16,001.9 5,908.7 10,093.2 36.9%0.94% 106,825 15.0X

10,193.1 8,159.7 2,033.4 80.1% 9,8730.60% 103.2X

8,169.5 735.5 8,905.0 6,999 8.3% 0.52X127.2%

4,417.7 32.8 4,450.5 6,120 0.7X 0.26%72.7X

24.3X 1,435 1,276.2 t..J0.07X 309.6 88.9% 966.6

0.04% 88. 925 625.7 553.4 67.6X 72.3 --J

1,866,691 1,706,378.6 197,876.7 91.4% 1,508,501.9 11.6%
28

Area 515 333.4 (2OX)

Area 516 11.9 (1%)

Area 517 230.2 (13%)

Area 521 692.1 (41%)

Area 514 15.4 (1%)

Area 513 118.1 (7%)

Area 512 0.7 «1%)

Area 511 104.1 (6%)

Area 540 134.2 (8%)

Area 522 66.4 (4%)

Figure 2.--Total u.s. domestic groundfish catch in thousands of

metric tons (% of total catch) in the Bering Sea and

Aleutian Islands region by NPFMC area, 1990.
29

Table 6.--Summary of data collected by U.S. groundfish observers

in the Bering Sea and Aleutian Islands region, 1990.

Species

Groundfish species

Lengths1

Age

structures2 Condition

Walleye pollock

Pacific cod

Sablefish

Atka mackerel

Pacific ocean perch

Rougheye rockfish

Shortraker rockfish

Shortspine thornyhead

Greenland turbot

Flathead sole

Rock sole

Yellowfin sole

Totals

Prohibited species

~ bairdi

~ oDilio

~ anaulatus

~ tanneri

~ bairdiX~ opilio hybrid

Red king crab

Golden king crab

Blue king crab

Couesi king crab

Chinook salmon

Chum salmon

Silver salmon

Sockeye salmon

pink salmon

Pacific halibut

Totals

426,793 15,974

170,002

4,641

257

167

208

208

16,064

344

26 123

54

271 173

173

4,771

843

1,124

1,075

1,378

292

621,190

23,771

lFork lengths were collected from fish, carapace widths from snow

(Tanner) crabs, and carapace lengths from king crabs.

20toliths were collected from most groundfish species, and scales

were collected from Pacific salmon and Pacific cod.
30

Table 7.--0bserved marine mammal-fishing gear interactions in

u.s. domestic groundfish fisheries in the Bering Sea

and Aleutian Islands region by gear type, species,

and condition of animal, 1990.

Gear type Species Numbr Condi tion1

Steller10 seaFreshly lion dead

Steller3 seaDecomposed lionSteller1 seaUnharmed lionSteller13 seaDeterred lionSteller1 seaInjured lion

Northern1 furDecomposed seal

Northern2 seaUnharmed lion

Walrus Dall's 54porpoise Freshly Decomposeddead

Dall's Ribbon 1porpoise sealDecomposed Fr~shly dead

Harbor 1porpoise sealDecomposed Freshly deadUnidentified 231 Decomposed Freshly whale pinniped dolphindeadUnidentified 1 Unknown dolphin

Steller10 seaDeterred lion

Killer20whale

l"Freshly dead" refers to dead animals not decomposed or shot

that were brought onboard or released from fishing gear.

"Decomposed" refers to animals Obviously dead prior to

contact with fiShing gear. "Unharmed" refers to animals

entrapped by fishing gear but released without apparent

injury. "Injured" refers to animals entrapped by fishing

gear that were released with an apparent injury. "Unknown"

refers to animals entrapped by fishing gear but released

before the observer could determine the animal's condition.

"Deterred" refers to animals that were not entrapped but

were subjected to harrassment such as seal bombs.

20bservers sampled 1,224,367 metric tons of groundfish taken

in 27,416 trawls.

30bservers sampled 45,505 metric tons of groundfish taken in

4,951 longline sets.
Table 8.--Monthly bycatch rates (number of fish per metric ton of catch) and average weight (kg) of Pacific salmon (all species) taken In

domestic groundflsh fisheries In the Bering Sea and Aleutians Islands region by gear type, target fishery, and NPFMC area, 1990.

Area 511

Area Area 51672140 512352 514

Avg. Rate

wt. wt.

Jan.

3.430.012 -- -- 0.000 0.00 -- -- 0.001 nsns 0.08200 5.33 000 1.40

5.18 --0.014 -- 0.000 0.00 - - -- 0.000 ns0.022 3.76 000 ns ns ns7.60 --0.004 -- 0.024 9.75 -- -- 0.207 3.17 - - -- 0.075 0.05400 4.43 508 0.0

0.006 6.1085 --0.003 -------. 0.049 4.06ns ns

0.000 0.00 --0.000 --- --- 0.000 0.000 0.00

- - ----------- 0.000 0.00 -- --

Aug.

- - ----- 0.000 0.0020 0.00 423 -- -- 0.000 ---- ----- 0.005 0.000 3.20 00 -- ----- 0.000 0.00 ns ns--- - ----- 0.014 0.001 6.11 395 -- ------ 0.000 0.00 -- --- - ---- 0.004 0.001 6.29 750 -- -------W-- ------ 0.000 0.00 -- -------•.....

<0.001 0.04925 0.00071 0.0500 6.04 317 4.38 50 0.02 455 1.40 0.011

Jan.

3.97 --0.011 ------ 0.000 ns0.177 5.00 0 ns-- ns

----ns

0.000.000 -- -- 0.019 2.97 -- - - 0.224 3.30 -- -- 0.007 0.000 4.00 0

5.94 --0.004 -- 0.003 4.32

-- 0.000 nsns 0.00720 0.00 39 4.33

4.60 --0.007 -- 0.006 10.84-- -------- 0.003 0.005 4.13 601 -- -- 0.000 0.00

0.000.000 -- -- 0.000 0.00 -- 0.000 ------

0.00920 0.00 517 3.54 000

-- ------- 0.000 0.00 -- ---- - <0.001 0.000 0.00 2.80

- - ---- 0.000 0.00 -- ..

0.0080 2.83

-- ---- 0.000 0.00 -- -- - --

0.00047 1.5

-- --- --- 0.000 0.00 -- 0.035 ----

0.000 0.00 5

-- -------- 0.000 0.000 0.00- - ------eo-- 0.000 0.000 0.00-- ------- 0.000 0.000 0.00

5.10 --0.005 -- 0.005 5.42 -- -- 0.008 0.01003 0.05 3.30 00 4.7 280 5.0 0
Table 8.--Continued.

Area 511

Area 54017221 5615 534

Avg. Rate

wt.

Jan.

5.370.018 - - -..------ 0.019 0.00023 3.80 41 0.00 .. ------ 0.000 0.00

6.12 --0.017 -- 0.039 6.24 -- -- 0.016 0.020 ns3.11 449ns .. --n -- 0.000 0.00

6.43 --0.006 -- 0.038 3.91 .. -- 0.018 3.19 -- 0.092 --0.00064 0.059 3.70 00 4.4

4.89 --0.013 -- 0.016 6.40 0.042 2.80 ---- -- 0.026 0.01362 0.290 4.83 299 3.57 28

0.000 3.75 000 --0.002 -- 0.022 0.00308 0.0040 3.1891 677 3.58 000

-- ---- 0.000 0.00 --n ---- 0.001 0.01800 3.88 000 2.34-- ------..-- 0.000 0.00 -- --

<0.0010 1.40

n n---- 0.000 0.00 .. -- 0.007 3.55 -- -- 0.002 0.00190 3.20 64 4.90 00- - -------- 0.000136 0.016 0.00 6 373 -- 0.0031 3.54 16- - ----- 0.000 0.00 -- -- 0.014 2.40 -- -- 0.011 4.75 .. - - 0.021 2.84-- ---.. 0.245 6.90 n ---..------ 0.012 4.51-- ---- -- -- 0.007 3.23 0.024 -- 4.59w 

- ---- -- ---

I\,)0.00022 0.00 5361 --0.010 -- 0.017 0.00046 0.03511 3.109509 3.63 297 0.00

Jan.

3.70 --0.020 ---- 0.018 2.01 -- .. 0.107 2.89

------ nsns

4.58 --0.015 -- 0.004 8.10 -- -- 0.013 2.37 -- -- 0.055 2.864.84 --0.007 -- 0.004 4.67 -- --

0.01300 0.09 4.8442 21 0.00

5.270.003 -- -- 0.003 4.40

--ns--ns -- 0.010 ns0.0020 3.81 4 000ns

0.001 4.25 --ns0.000 -- 0.000 0.00 -- -- 0.002 0.0010 4.00 517 0.00

0.000 -- -- 0.003 1.85 0.001-- 4.60 0.003 0.000 3.4038 00 --

3.151.453 -- -- 0.000 0.0050 2.11 000 -- -- 0.094 0.0070 2.1600 0

3.530.614 -- 0.006 --

0.0006 0.00 264 1.40 -- -- 0.016 0.00130 2.68 193 2.6

2.320.749 -- -- 0.000 0.00

-- 0.013 2.48-- 0.032 0.0097 3.512072

2.54 --0.331 -- 0.000 0.00

-- 0.162 1.35 -- -- 0.064 0.011 0.0094 4.07 361 2.36 447

-- ------ 0.131 4.00 -- -- 0.054 0.123 4.31 092-- ----------n 0.000 0.021 0.00 267

0.003 ns0.01602 0.031126 0.000 3.21 20380.41 454 0.00 387 1.72ns0.122
Table 8.--Continued.

Area 511

Rate Avg.

wt.

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Pelagic vessels (other targets)

Jan. 2.22 --0.133 --u--u-- 0.000 0.00 -- --u--- ns ns

0.000.000 -- --u----u-- 0.029 4.23

0.000.000 -- -- 0.004 7.50

u

ns--ns -- 0.182 ns5.90ns

6.800.768 -- -- 0.000 0.00 u u

ns--ns -- 0.088 0.067 4.14 371 -- --ns ns

ns 0.000 ----0.00 -- u

nsu ns -- 0.003 0.000 0.00 52 -- --ns ns

-- ----u ---u- 0.000 0.00 u --

0.0003.231.827 -- -u ---- 0.000 0.00 -- --0.002 1.76

0.000 -- -- 0.00022 4.80 -- -- 0.080 0.007 2.69 1.89

0.000.000 -- -- 0.117 2.06 0.037 4.76 ---- u0.024 0.02003 4.027 1.80

4.06 --

0.153 -- 0.111 0.0009 0.00 51 7.00 -- -- 0.038 0.006 3.92 425 -- -- 0.018 6.00

0.00 --0.000 -- 0.000 0.000 0.00 u -- 0.029 0.725 3.41 46

-- --u ----- 0.000 0.00 -- -- 0.023 3.51 -- -- ns ns

w

W 5.40 --0.510 -- 0.012 0.00011 0.00 485 2.99 -- u0.037 0.01803 0.010 3.62 600 1.8

ns = Fishing occurred but no sampling by observer.
CI>

~

~

:g-'

65 "OO'N

50 "OO'N

55 "OO'N

SO"OO'N

<;;:. -

••

"" ° "

34

: 'ir..4V..J.- ~ ~

..

Alaska

Solman (no/ton)

o 0.0

1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1

4 > 1

65000'N

50000'N

55000'N

SOOOO'N

. .

Alaska '-- <J~J' I 

.a r 'V1-50000'N/ \. .•...

~-:>:g-'

55 WN~

" • • LSS'OO'N

-

Solman (no/ton)

,prr

o 0.0

1

<- 0.1 > 0.1 <- 0.5 , -11-.8 2 

:'Sl..4V 3 

> 0.5 <- 1 " 4 > 1

I

:

l50000'N

,

I I ,

, , I

,

I I ,, ,, I

,

180000'W 170'00'W 150'00'W

Longitude

55 "OO'N

170'00'E 180 'OO'W 170'00'W

Longitude

150 'OO'W

6S 'OO'N

Figure 3.--Average incidence (no./t) of Pacific salmon in the

u.s. domestic fisheries by quarter, target fishery,

gear type, and 1/2' latitude by 1/2' longitude areas

in the Bering Sea/Aleutians Islands region, 1990.
35

. \".. Alaska

<)~~ l'O""ON

\J /~n.\I

o 0

o 0 0 • -~-:..f ~ "t)OJ

:g...J

55 COO'N-t

, , "- 1 _,I ~>r.'" ~,.~

t55 "OO'N

Salmon (no/ton)

<;;). ~

or

o 0.0

1

<- 0.1 

..J1- " > 0.1 <- 0.5 2 

: 'ir..8V 3 

>> ,

0.51 <- 1 4

~50"OO'N

,,

1

,

I

,.,

I

.,

I

.,,

180 170·00'W 1 60 ·OO'W

Longitude

, ,

,.,,

'~'~'\I , ,

ch SDe~

A' "( ..,. j alman 1-65 "OO'N

<;;).~..

50 ·OO'N

55 ·OO'N

60 "OO'N

65 "OO'N

Alaska

..

Salmon (no/ton)

o 0.0 1 <- 0.1

2 > O.t <- 0.5

3 > 0.5 <- 1

4 > t

: ';f..4~••O..J1-"

,

;I '. 0

"

55 COO'N

65 COO'N

Q)

"t)

~

"0

...J

60 COO'N

50 COO'N

170·00'E 180 ·OO'W 170 ·OO'W

Longitude

1 60 ·OO'W

Figure 3.--Continued.
55 "CO'N

50 "CO'N

II>

"0

'"

:s

....J

55 "OO'N

<;;:. ~

41

50 "OO'N

"'. ° "

36

, ""..4~"~ •

..

Alaska

Salmon (no/ton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1

4 > 1

55000'N

60000'N

55000'N

50000'N

170·00'E 180000'W 170000'W

Longitude

150000'W

55 "OO'N

60 "OO'N

II>

"0

-'"

:,J

o

....J

55 "OO'N

<;;:. ~

41

50 "OO'N

~ -. 0

" '!J'il..4~"....j).g. e ,

.

Alaska

Salmon (no/ton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1

4 > 1

55 'OO'N

60000'N

55 ·OO'N

50000'N

170·00'E

Figure 3.--continued.

180 ·OO'W 170·00'W

Longitude

160·00'W
37

· Alaska

\j / ~~\i!:'- I

-itA <)~ - ~ c:7: •.. 'fO"'O'N

·"-:g-'~ -

55 'DO'N 1

. , """ - I ,1 ~>r.=' N,!:-

t55OOO'N

Solman (no/ton)

o 0.0 )/ • p

<- 0.1 1 

>0'00.1 <- 0.5 -P-" 0 2 

0 0 3 > 0.5 <- 1 

> "1 4

! .

,

I

,,

I

,

I

.,,

~ 50 OOO'N

170000'W 150·00'W 80 ·OO'W

Longitude

I ,

,I

.

.,

'::?J'...1..' t', ,

tch sDe~

'" almon . ~ A' -C-eo - ~55000'N

<;;). -

•••0

50000'N

55 ·OO'N

50000'N

55000'N

Alaska

·.

Solman (no/ton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5 3 > 0.5 <- 1

4 > 1

o p

~eo

~<;t..4VO 0 0 0 0 ,I ',' ° '-

55 'DO'N

50 'DO'N

50 'DO'N

55 'DO'N

11>

"

~

:g-'

170·00'E 180·00'W 170 ·OO'W

Longitude

150 ·OO'W

Figure 3.--Continued.
38

.

60"CO'Nl \J / ~ . '- I <)~.-v. -.' AI~ka 'f60"C0'N

,--',' . f c;:7;

Q)

o • -M~ -.::> ;

0.g

....J ~ ~ ~"'L

' 2 1'1 0 ••

55 "CO'N 0 21,1 ,. " CI'",. ••• 55.00'N

I I I ~ 0'· .••.

Solmon (no/ton)

~ r,r 0 0.0

- P 1 <- 0 1

co ,,". 0 •• .-Jl..JJ.- 2 ,. 2 > 0.1' <- 0.5

•.•• : 'iI..4~ I .3 > 0.5 <- 1 .•• " 4 > 1

SO<QO'Ni : ' , , , , ' , , , , ' , , , , ' , , , : ' , , , , ' , , , , Lso<Qo'N

170·00'[ 180 ·OO'W 170 ·OO'W 160 ·OO'W

Longitude

65 "CO'N~ Bvcatch sDe~ /Salmon 1..... ~'7'~"""""" "'" ~ J- 65 "CO'N

..

50 "CO'N

55 "CO'N

60 "CO'N

65 "CO'N

Alaska

Solmon (no/ton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

.3 > 0.5 <- 1 4 > 1

o 0 0 0

O'0 0 0 0 0 O...J?L,.' cj 0 o 0 "",' 6 , "'i!J~ 0 1 0 o '0 -- 0

~~..

55 "CO'N

50 "CO'N

65 "CO'N

60 "CO'N

Q)

-.::>

:e

'0

....J

170·00'[ 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 3.--continued.
· Alaska

V

/~

'-

I <)~ •.. 'fo'OO'N

~ ~ ~M- 

·"

~

~

..J -

55 <QO'N~

, I ""'- ':'I~~'~f"" I

rSSOOO'N

Solmon (no/ton)

. _? . ~,~f1'J-' o 0.0

<- 1 0.1 

-.............. > 0.1 <- 0.5 2 ;5

> 0.5 1 4

> 1

!

I

~ 50 "OO'N

,

I

,, ' , , I I I

, I

1807000'W 60 "OO'W

Longitude

Alaska

/~-;og

'-

<)~ •.. ' f°'OO'N I

f ~ 

· ~"M~ "

~:g..J

55 <QO'N~

, ,

Y"Pf~I

r55"00'N

0

o0 Solmon (no/ton) 

0 OOOOp'

o 0.0

1

<- 0.1

I~' 0 0

2 > 0.1 <- 0.5

O 0 I 0 0

;5 > 0.5 <- 1

> I 4

! ,

,,

I

,,

I

~SOOOO'N

180"00'W 170"00'W 160 °OO'W

Longitude

I ,

,I

'J£'-L' ~ I

, ,

tch SDe~

A'(-.,. - -j almon J-- 65 OOO'N

65 <QO'N

39

65000'N

Figure 3.--continued.
40

. . Alaska "'-

o~~ 'r0'OO'N

"V

/~---"I

f c::r: . -lU ~ 

--u::J

~-'

55 <QO'N-t

, ,

I ").... :: :'l~~'"f~

t55 "CO'N

Solman (no/ton)

<;::. ~

'r o 0.0

, 

<- 0.1

c;-~" > 2 0.' <- 0.5 

,

: '4r-J > 0.5 <- 1 3 

> 1 4

r 50 "CO'N

I

,

,

180·00'W 170·00'W 160 ·OO'W

Longitude

I ,

,,, , ,

,

'~'-A-' \ I

, ,

h SDe~

A''(-co -j alman ~ 65 "CO'N

50000'N

55 "CO'N

60 "CO'N

65 "CO'N

Alaska

Solman (no/ton)

o 0.0 , <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- , 4 > 1

: '4r-JC;- ~ " , " '. 0

"

65 <QO'N

50 <QO'N

55 <QO'N

<;::. ~

..

60 <QO'N

CI>

-u

::J

-

:g-'

170·00'E 180 ·OO'W 170 ·OO'W

Longitude

160·00'W

Figure 3.--continued.
65 "GO'N

60 "GO'N

<\)

"

~

"0

....J

55 "GO'N

<;::>. -

..

50 "GO'N

tI •• 0

"

41

: ~~.-Jl- " "

.

Alaska

Salmon (nofton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1 4 > 1

65 "CO'N

60 ·OO'N

55 "CO'N

50·00'N

170·00'E 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

65 "GO'N

60 "GO'N

<\)

"

i:

:g

....J

55 "GO'N

<;::>. -

..

50 "GO'N

o

"'." • 2 0 2 1 , O:I~V~' "0 0 0

..

Alaska

Salmon (nofton)

o 0.0

1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1 4 > 1

65"C0'N

60 ·OO'N

55 ·OO'N

50·00'N

170·00'E

Figure 3.--continued.

180 ·OO'W 170·00'W

Longitude

160·00'W
65 "GO'N

60 "GO'N

()

"'0

OJ

-

"0

....J

55 "GO'N

<;::. -

41

50 "GO'N

".,. 0

'-

42

:'if..4~~" .'

..

Alaska

Solman (no/ton)

o 0.0

1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1 4 > 1

65 ·OO'N

60000'N

55000'N

50000'N

170·00'E 180·00'W 170·00'W

Longitude

160·00'W

65 "GO'N

60 "GO'N

()

"'0

.;

"0

....J

55 "GO'N

<;::.-

..•

50 "GO'N

" '. 0

'- :'if..4~~" .'

..

Alaska

Solman (no/ton)

o 0.0

1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1 4 > 1

65000'N

60000'N

55000'N

50 ·OO'N

170·00'E

Figure 3.--continued.

180 ·OO'W 170·00'W

Longitude

160·00'W
43

. Alaska

V

/t ~ <)~ ••. 'f°'OO'N ~it:'A ~ 

"C.3

:g

-'

55 <{)O'N-1

, "- I - '!I:~'-f:.~

t55•OO'N

Salmon (no/ton)

<;;).~

'or

0.0 0

1 

<- 0.1 > .-P-"2 0.1 <- 0.5 

,

: 'V..4~"

3 > 0.5 <- 1 

> 1 4

~50"OO'N

,

I

,

I

,

1807·00'W 160·00'W ·OO'W

Longitude

I ,

,,I

,

'~'-L' '\ I

, 

atch SDe~

A'~.,. "y {]Imnn L65"OO'N

<;;). ~

'"

65 "OO'N

50 "OO'N

55 ·OO'N

60 "OO'N

.

Alaska

Salmon (no/ton)

o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1 4 > 1:~~ •.'-p-e ~ " •• 0

"

60 <{)O'N

65 <{)O'N

55 <{)O'N

50 <{)O'N

•..

"C

.3

:g-'

170·00'E 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 3.--Continued.
Table 9.--Estlmated bycatch of Pacific salmon (by number of fish) by u.s. domestic groundflsh vessels In the Bering Sea and Aleutian Islands

region by species, NPFMCarea, and gear type, 1990. (Dashes Indicate area not fished.)

Chinook salmon (numbers)

Area Area Area Area Area Area Area Area Area Area %by gear

Gear type 511 512 513 514 515 516 517 521 522 540 Total type

Bottom trawl 400 0 273 9 1,405 6 2,412 1,384 21 156 6,066 43.1%

Pelagic trawl 630 3 269 0 4,172 -- 2,535 34 5 367 8,015 56.9%

Longl tne 0 0 0 -- 0 0 4 0 0 0 4 <0.1%

Pot 0 0 0 •• 0 0 0 0 0 0 0 0.0%

Total 1,030 3 542 9 5,577 6 4,951 1,418 26 523 14,085

Percent by area 7.3" <0.1% 3.8" <0.1" 39.6" <0.1" 35.2" 10.1" 0.2" 3.71

Gear type

Bottom trawl

Pelagic trawl

Longline

Pot

Total

"Other" salmon* (nlJ1bers)

Area Area Area Area Area Area Area Area Area Area " by gear

511 512 513 514 515 516 517 521 522 540 Total type

o 0 12 0 3 0 25 77 4 407 528 3.2%

2,558 3 41 0 2,708 -- 2,211 7,861 5 467 15,854 96.6" o 0 0 -- 0 0 13 21 0 0 34 0.2%

o 0 0 -- 0 0 0 0 0 0 0 0.0"

2,558 3 53 0 2,711 0 2,249 7,959 9 874 16,416

~

~

Percent by area 15.6% <0.1" 0.3" <0.1" 16.5" <0.1" 13.71 48.5" 0.1" 5.3"

Gear type

Bottom trawl

Pelagic trawl

Longl tne

Pot

Total

Total salmon (numbers)

Area Area Area Area Area Area Area Area Area Area " by gear

511 512 513 514 515 516 517 521 522 540 Total type

400 0 285 9 1,408 6 2,437 1,461 25 563 6,594 21.6"

3,188 6 310 0 6,880 -- 4,746 7,895 10 834 23,869 78.3%

o 0 0 -- 0 0 17 21 0 0 38 0.1"

o 0 0 -- 0 0 0 0 0 0 0 0.0%

3,588 6 595 9 8,288 6 7,200 9,377 35 1,397 30,501

Percent by area 11.8" <0.1% 2.0% <0.1% 27.2% <0.1" 23.6% 30.71 0.1% 4.6%

*Specles In this group Include chum, coho, sockeye, and pink salmon.
45

n metric tons (t» and Pacific salmon bycatch (in numbers) by target

fishery, NPFMC zone, and species in the Bering Sea and Aleutians Islands region, 1990. Pacific salmon

Total PerOther XX Chinook ofwithin t oftotal

salmon groundfish salmon salmon catch catch zoneZone

35,215.6 131 0.004 0 3.6X 0.4X131 1

12,124.7 216120.018 1.3X 0.7% 204 217,014.6 18270.0020.3X 0.1X9 3

374 64,354.9 300.006 1.2X --344

31,215.3 2,552 3,176 88.2X 0.102 10.4X 624 1

788,589.8 12,590 9,90273.3X 41.3X 0.016 2,688 2

388,334.3 7,227 2703 74.3X 0019 23.7% 4,524

1,208,139.4 15,157 22,9930.019 7,836 75.4X --

17,479.8 670.004 0 1.9X 0.2X67 1

81,997.3 498580.006 2.9X 1.6X 440 219,350.2 380 490.025 5.0X 1.6X 110

1,055 118,827.3 4383.5X 0.009 --617

31,635.3 226 0.007 9 6.3X 0.7% 217 1100,800.4 3,m220 22.0X 037 12.4X 3,553

46,717 1,530168 .915.7% 0.033 1,362 5.0X

5,529 179,153.6 3970.031 5,132 18.1X --

136.8 0.000 0 O.OX O.OX 0 1

44,879.7 34380.0010.2X 0.1X45,940.9 0.000 0 O.OX O.OX0

3450,957.4 380.001 4 0.1X --

542.1 0.000 0 O.OX O.OX 0 1

511.2 0.000 0 O.OX O.OX 0

364.8 0.000 0 O.OX O.OX 0

0.000 01,418.10 O.OX--

71.6 0.000 0 O.OX 0O.OX 1

3,776.2 0.000 0 O.OX O.OX0

13,361.9 0.001 57 <0.1X 0.1X2

<0.001 17,209.7 57 2 <0.1X--

nfnfnfnfnfnf 1

352.5 0.000 0 O.OX O.OX 0

110.6 0.000 0 O.OX O.OX 0

0.000 0 463.1 O.OX --0323.6 0.000 0 O.OX O.OX 0 1

487.6 0.000 0 O.OX O.OX 0

2,733.1 0.000 0 O.OX O.OX0

0.000 03,544.30 O.OX --

nfnfnfnfnfnf 1

6,847.4 35570.0080.3X 0.2% 22

24,655.7 1201680.007 1.7% 0.6X48

155 31,503.1 2250.007 70 0.7% --

nfnfnfnfnfnf 1nfnfnfnfnfnf 2

30,807.7 2002800.009 2.9X 0.9X80

200 30,807.7 2800.009 0.9X -- 80

116,620.1 2,561 3600 11.8X 0.031 --1,039 11,040,366.8 10,261 17,1720.017 6,911 56.3X --

549,391. 3,594 9729 70.018 6,135 31.9X --1,706,378.6 30,501 16,4160.018 14,085
46

Table 11.--Biological data on the bycatch of Pacific salmon in

u.s. domestic groundfish fisheries in the Bering Sea

and Aleutian Islands region, 1990.

Species

Percent

by species Sex

Sex

composition

Average

weight (kg)

Average

length (em)

Chum

Chinook

Coho

Sockeye

pink

Steelhead

53.1%

46.2%

0.5%

0.1%

0.1%

<0.1%

Male

Female

Male

Female

Male

Female

Male

Female

Male

Female

Male

49.0

51.0

44.8

55.2

38.6

61.4

75.0

25.0

33.3

66.7

100.0

2.28

2.18

3.74

3.87

3.19

3.20

2.74

2.03

1.80

0.86

5.40

54.5

54.1

64.4

64.1

57.1

63.3

62.1

52.7

57.0

31.0

71.0
Table 12.--Monthly bycatch rates (weight in kilogram per metric ton of catch) and average weight (kg) of Pacific halibut taken in domestic groundfish

fisheries in the Bering Sea and Aleutian Islands region by gear type, target fishery, and NPFMC area, 1990.

Area 511

Area Area 5164 5174021 5215 53

Avg. Rate Rate

wt. wt. wt.

Jan.

0.51--17.67 --

0.73 2.24 -- - - 8.24 ns ns 0.5683 55.79 1.61 2.01

0.74--17.24 --28.72 3.02 -- -- 6.23 ns ns 0.81 ns21.54 2.08ns

276.09 237 101.44

--

1.91

.

10.71 --

0.81 250

-

1.92 1.76 627 3.76 -----11.18 . 

1.15 1.64 0.73 9.12 543 --

16.98 ------ 32.32 ns1.33ns

0.79 13.01 2.65--18.04 ----- 51.08 1.60 14.02 2641 5.40 123 2.3 4.69

-- --- -------- 115.33 4.27 000 2.12 3.44 0.00

Aug.

- --- - - - -

7.14 1.15 7.82 259 3.26 1.60 -- --2.80 8.49-- -- 23.11 7.30

-- ----- 0.52 9.11 0.30 12.30 -- ---- 0.00 0.00-- -- ns ns

-- ----- 2.43 2.03 9.93 1.72 -- ---- 10.95 13.71-- --0.97 2.58

-- --7.03 -- 3.06 18.97 1.26

1.07 31.94 ,j::.

--.

---------------- -- -.,J

115.33 2.5 55 066 3.40 155 70.03 11 0.82 23.56 3.84 0.75 181 3.99 90 3.44 199 7.72 410 16.87 14

Jan.

1.46--0.39 ------ 1.62 ns ns 4.93 59.62 3.15-- ---- ns ns

0.65--2.41 --

2.03 0.30 -- -- 126.79 4.08 -- 11. -- 18 1.60 00 3.35 0.0063

0.60--1.13 --0.45 1.27 142.77 -- 12.25 0.00 58 4.63 0000.3400 1.48 0.00

0.95--1.64 - -

0.89 2.76-- ------ 1.32 5.88 272 3.4 000 0.8254 0.00

2.50--5.61 - -

0.20 1.67.. ------ 0.45 4.36 2.30 3598 2.33 3.54 0775 1.94-- ..----2.25 .---- 3.21-- .--0.47 -- 5.2785 102.08 036

-- -----1.48 ---- 6.64 0.00-- 0.00 890.03 -- --2.88 19.60

-- ----- 36.59 6.62 -- --0.75 7.00-- --0.00 0.000.08 572 29.75 17.06 00

-- -- ..--- - 1.12 9.01-- ----- 16.57 0.001.17 12.29 21.87 0.00

-- ------------ 0.42 6.21 7.60 000.00 1.65-- ------..------ 8.93 6.27-- ----------- 6.20 1.56

0.90- -

1.64 --0.53 1.63 3.51 -- 3.6274 683 4.9139 373 0.26 0.37 303 0.60 18
Table 12.--Contlnued.

Area 511

Area Area Area 51640 51475 512213Avg. Rate Rate

wt. wt. wt.

Jan.

1.2912.00 -- -------- 107.97 0.26 19.22 1.08 931 1.48 -- -- .. 12.49 6.311.2111.91 -- -- 59.77 2.83 7.92 -- 17.89 ns5.27 195ns -- ---- 7.27 7.52

0.77--4.57 --4.20 3.01 115.93 6.05 -- --18.98 9.47 1.90 93.89 1.94 927 4.80 694

0.82--8.10 -- 39.21 2.40 9.89-- 3.33 15.75 6.76 301 1.67 1.20 4.7593 6.12

10.18 2.39 10.06.12 144 --18.92 -- 31.02 6.76 330 20.92 45.68 3.1479 18.06.48 309 3.3442

-- ---- 13.20 2.86 11.84 ns7.20 5.85 ----ns 4.02 00 5.964.81 000

-- ---- 0.00 0.00 149 0.00 4.69 -- 16.65 -- 6.37 774 5.08 332 10.29

-- ---- 2.75 10.70-- --4.24 10.96 -- --3.05 12.03 10.853.66 2.68 841 10.83 11.54-- --- --- 0.00 0.00 -- --5.61 17.07 2.41-- 8.85 11.29 10.52 4.77 1.59 15.20 15.14-- ---- 10.17 5.17 8.04-- 10.53 -- - - 2.71 ns ns 5.92 000 9.216.76 000- - ---.-- 12.41 2.91 -- ---------- 1.91 6.72- - ------------ 52.23 0.95-- -- 0.83 9.01

2.17 10.18.12 143 8.09 --12.53 -- 54.85 7.68 342 20.68 19.05 3632 8.85 498 1.4266 4.12 5.08 .e:.

(»

Jan.

2.28--0.18 -------- <0.01 3.39 -- 1.26 -- -- ns ns

1.40<0.01 -- --0.24 2.86 <O.ot-- 2.90 -- --0.00 0.00

1.00--0.21 --

15.51 0.00 428 2.40 0.017 0.0920 0.00 -- 3.51 00'0 0.00

1.40--0.24 --ns2.20 --0.042--ns 2.48 ns300 0.0.030ns

0.02 1.21 0.06 12.66 ns -- --3.93 2.05-- --0.01 4.39 000 3.26.01 00

4.84 0.37 - - --0.00 0.00 1.46-- 2.08

--0.13 0.00 211.05 11.36 0.00

4.81 0.01 -- --

2.50 00 0.00 0.00 0.43 -- --0.03 6.63 898 3.600.1301

0.00--0.00 --0.09 3.26 687 0.00 0.00 0.07 -- --

0.05 4.23 771 <0.01 2.41 0.8

8.00--0.38 --

5.79 0.10 0.26 -- 4.43 0.09 0.00 581.04 11.96 0.00

7.69--1.21 --0.00 0.00-- --0.13 4.36

--

0.15 9.54 4030.036 15.95 0.10 29.18

-- ---- 0.00 0.00-- ------ 0.00 0.00-- 0.02 33.91-- ---- 0.00 0.00-- ------ 0.00 0.00 0.00

12.41 0.06 ns2.48 000 2.58 39 7.60 1.28 0.00 0.05681 0.08 ns0.1929.36
Table 12.--Continued.

Area 511

Area Area Area 516 514 5224017 5521 5123Avg. Rate Rate

wt. wt.

Jan.

0.00--

0.00 ----u-- 0.00 0.00-- u--u --u ns ns

0.000.00

1.24--1.65 --1.46 4.16-- --

ns-- ns - -

0.81--

3.57 --0.00 0.00u --

nsu ns -0.04 -

3.44 000.00

ns ns -0.02 --- 1.10u --

ns-- ns u0.000.00 ns ns ns

-- ----------- 7.50 1.97-- u

8.49 8.17 000 2.4 ns0.00 1.61 ns

4.11--0.19 -------- 10.25 2.62 -- u1.36 2.14 690 0.00.00 29

1.29 -14.24 - - -

0.51 6.75u --

1.84 4.02 -- u3.97 6.36 0.00 166 0.00 119

--0.00 --0.75 3.81u --

4.31 4.46 181-- 3.85 756 6.37 0.08 0.56

2.60--3.08 --1.28 2.90 435 10.52 2.30 2.25 u -7.38 - 9.78 0.00 1.99 0.00 12

2.52--6.32 --

9.68 2.60 17 30.91 155 6.95 u 17.11 u

64.41 1.51 383

-- -------- 1.30 7.75 u - - 29.83 0.99u --u -- ns ns

1.09--2.53 --0.88 2.30 308 2.19 4.54 7.69 -- 10.18 --

6.93 6.37 000 1.31 0.080 114 ",..

~

Jan.

-- -----u--- ns-- ns u ns --ns--ns

-- -------ns u

ns--ns ----ns

-- ----------- 397.07 7.68 -- u

36.55 4.12-- u--u 68.22 14.82

-- -------- 190.04 6.38-- ------------ 88.30 8.37 -- u 327.28 11.44 0.00 63.18 13.53 0.00 22.72 12.52

ns ns 148.16 u-------- 16.83u u 143.16 10.48 11.97 8.19 29.44 277.86 1641 12.14

nsns ns ------ 38.54 15.48-- -- 70.95 15.80 6.03 0.00 ns ns17.060.00

-- --------- 0.75 4.15 9.13 ns000 22.40 ns 12.96 20.14 4668 0.00 10.06-- --u------ 6.78 7.25-- u--u ------- 18.52 10.47- - u---------- 0.00 0.00 0.00-- ----

u--u --u-- -- ns ns

ns ns ------u 123.14 117.04 ns48.34 913 8.9 ns 11.23 15.30 147.39 112.54 12.05
Table 12.--Continued.

Area 511

Area Area Area 516404 5125721 513

Avg. Avg. Rate Rate

wt. wt.

Jan •

-- .- ..---..---..- 18.98 3.58 10.77 3.8

-- --- --- 11.63 -

ns------ nsns 4.40 4.10 10.40 3.99 3.19

-- ..------------- 11.64 170.87 3.932 3.65 7.68 2.76 352

-- ----------- 58.70 7.64 -- -- 37.27 4.27 3.25 13.33 3.1 2.67

519.61 ----------- .. 6.27 -- 39.78 --

86.14 9.87 12.10 4.83 3667 14.56

1,512.23 4.31 10.93 117.79 -- ..---- 608.08 9.97 -- 199.09 --4.76 53.64 4823 6.0361 2.25 443

-- ---------- 215.39 5.32 - - 34.37 --

111.02 3483 22.04 6.32 520 7.38 8.22

-- --- -- - 49.55 6.19 -- -- 123.27 2.48 -- - - 41. 14 397.67 26.30426 8.3411 55 36.44-- --- --- 110.44 11.97-- -- 409.44 4.46 -- 91.77 --29.16 9.40 667 17.19 5.66 82 18.28-- ---- ns-- ns -- 278.19 4.78 -- -- 54.26 4.43 6.58 15.09991 3.67 694 12.53

4.13 119.92 -- -- 114.40 6.59 -- -- 224.25 6.99 54.09-- 22.67 580 24.89 7.02 4.39 528 3.5.57--60.92 --50.69 4.29 -- -- 67.79 3.66 -- -- 52.29 20.33 3.41 25.52 4.00 36

1,404.76 79.90.71 4.31 -- 11.03 117.79 -- 326.67 6.10 -- 50.98 --23.82921 6.73 16.41 4.72 55089 111 0

Jan.

-- ------------ ns- - ns ----- ns ns

-- --------- ns ns

1,875.25 --9.97 -------- -- 78.62 6.59

-- --..------ 41.36 5.00

1,663.27 9.21 -- ------ 61.33 4.58 -- ----- 304.07 14.73

-- -------- 1.36 6.80-- 557.81 -- 15.59 221.26 16.60 953.27 19.31 4.81

-- -------- 53.31 8.81 -- - - 16.51 5.06 10.22 1.70 -- -- 22.76 18.18

..-- - - ------ - 2.28 10.00 -- --2.08 14.90 194.47 12.37 -- .. 346.16 26.49

-- --------eo-- 46.27 ns ns 12.96--

1,785.72 5.61 -- --eo------- 5.34 20.15

-- ------------.- 4.04 2.64

-- _. --------- ns ns

1,775.75 --8.26 --..---- 75.38 8.50- - --64.29 174.40 9.16 10.80 69.35 16.60 10.87 19.31
Table 12.--Continued.

Area 511

Rate Avg.

wt.

Pot vessels (all targets)

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Jan.

Mar. Apr. May Feb.

- - --..- ----------- ns ns

-- -- ..-------- 0.00 0.00

6.640.005.94 .. -- ---- 51.96 8.09 -- -- 141.39 0.00 8.70 0.0 11.8720.62

9.33--4.18 --0.83 5.97.. - - 85.01 17.65-- --4.87 3.16 0.00 12.00 11.43 0.00

-.0.00 --0.49 6.5664 835 5.00 ---

7.30 0.6139 -3.52 7.56 --- . 

26.32 --

ns

..

--3.00 413 -----

20.01 ns. 

-- ----..---- ns ns

Year

6.26 71 0.00 0.0046 --5.11 .. 23.41 3.62 6.64 580 ns9.58 4.70 15.35 753 nsns 01

f-I

ns = Fishing occurred but no sampling by observers.
1BO'OO'W

CI> "t)

.z

:g

....J

CI>

"t)

.z

:g

....J

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

65 <QO'N

60 <QO'N

55 <QO'N

50 'GO'N

<;;:o.~

..•

170'00'E

<;;:o.~

..•

~ -. 0

"

,,-. 0

"

52

:~v.J-" "

170 'OO'W

Longitude

: ~l:'••.J-" ~

..

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10 + > 10

1 60 'OO'W

..

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

+ > 10

65 "OO'N

60 "OO'N

55 'OO'N

50 "OO'N

65 "OO'N

60 "OO'N

55 'OO'N

50 "OO'N

170'00'E 1 BO 'OO'W 170'00'W

Longitude

160'00'W

Figure 4.--Average incidence (kg./t) of Pacific halibut in the

U.S. domestic fisheries by quarter, target fishery,

gear type, and 1/2' latitude by 1/2' longitude areas

in the Bering Sea-Aleutian Islands region, 1990.
65 "GO'N

60 "GO'N

QJ

1:)

i!

~-'

55 "GO'N

oe;::..~

..•

50 COO'N

~ •.•• 0

"

53

: 'iI..4/)1'"- ~ i> .'

.

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 1n 4 "> 10

65 ·OO'N

60 -aO'N

55 ·OO'N

50000'N

170·00'[ 180 ·OO'W 170·00'W

Longitude

1 60 ·OO'W

65 COO'N

60 COO'N

QJ

1:) i!

:;:;

o

-'

55 COO'N

oe;::..~

..•

50 COO'N

;I ",' • " : 'iI..4/)1'"-4.-$- i>

,

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 1(1

65·00'N

60000'N

55000'N

50 ·OO'N

170·00'[

Figure 4.--continued.

180·00'W 170·00'W

Longitude

160 ·OO'W
65 "OO'N

60 "OO'N

v

"

.;

:g-'

55 "OO'N

<;::a.~

••

50 "OO'N

tI ••.• 0

,

54

: <;r.4;;,;:-.J.- "

..

Alaska

o 0.0 1 <- t

2 > t <- 5

3 > 5 <- 10

4 > 10

65 "CO'N

60"CO'N

55 "CO'N

50 "CO'N

170·00'E '80 ·OO'W , 70 ·OO'W

Longitude

160·00'W

<;::a.~

••

65 "OO'N

60 "OO'N

v

"

.;

~-'

55 "OO'N

50 "OO'N

~ -. 0

" :2<;r.4~"~ t

.

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 > 10

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

170·00'E

Figure 4.--continued.

180 ·OO'W '70·00'W

Longitude

, 60 ·OO'W
55

65 <DO'N

60 <DO'N

'"

"0

~

:g-'

55 <DO'N

50 <DO'N

~~.. 2'2 I'. 0 p

" 1: ~~.J..-" 3' " 2 2

..

Alaska

o 0.0 I <- 1

2 > 1 <- 5

3 > 5 <- 10

4 ." 10

65 ·OO'N

60 "OO'N

55 "OO'N

50 "OO'N

170·00'E 180·00'W 170·00'W

Longitude

160·00'W

'"

"0

~

:g-'

65 <DO'N

60 <DO'N

55 <DO'N

50 <DO'N

~~

•• 4 "',' ., 2

~20'

:2~/)1'''42 2 2 3 "

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 •..• 10

65 "00' N

60 ·OO'N

55 "OO'N

50 ·OO'N

170·00'E 180·00'W 170·00'W

Longitude

1 60 ·OO'W

Figure 4.--continued.
56

. Alaska '-.

I ~

V / \ .

I

<) .oV••• a...

~d60000'N

J'\ _-'.)... 'f J _

"tJ

:Sc

-' (

55 "OO'N-t

, , "

I ~d ~~. "1:':-

r55OOO'N 

ut (kg/ton)

- 0.0")/ 0

.il 

<- 1 1 ~!3 > 2 1 <- 5 

"-

: "fr..4V 4

3 > 5 <- 10

> 10 4

, ~

,

I

,,,,~50000'N

170·00'W 806 ·OO'W

Longitude

, ,

,I,

.

']'..L'"t' ,

SDe~

<I nlihlJt J ./ '(." L65000'N

65 "OO'N

60 "OO'N

CII

"tJ

~

:g-'

55 "OO'N

..,.~•• 4 2 3 3

0' 2 2 4 3 4 3.....$...l. 2 i 0 2 3 "'.' 2 2 '2'il-4V 3 3 4 o '2 ,: 2

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 > 10

65 ·OO'N

60000'N

55 ·OO'N

50 "OO'N 50 ·OO'N

170·00'( 180·00'W 170·00'W

Longitude

160 ·OO'W

Figure 4.--continued.
57

-;::., I ••. 2 1

•• 1 2'2 ~ 3 0 2 3~2

1 2 1'~~"0 20·'3~w~"-33 2 2 3

65 <QO'N

60 <QO'N

'"

"t)

~o

-J

55 <QO'N

50 <QO'N

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > In

65 COO'N

60 COO'N

55 COO'N

50COO'N

......

2'''' ~ ••.••. ~~ 2 1.~"'(j "0~'i;'II4t--"••.••. 3 ••.

'"

"t)

~

:g-J

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

170·00'E

170·00'E

-;::., ..

1BO ·OO'W

1BO·00'W

170·00'W

Longitude I

170·00'W

Longitude

1 60 ·OO'W

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

1 60 ·OO'W

65 COO'N

60 COO'N

55COO'N

50 ·OO'N

Figure 4.--continued.
65 <QO'N

60 <QO'N

II>

"

~

c-'

55 <QO'N

<;>~..

50 <QO'N

tI •• 0

"

58

: 'il..4~~"

,

Alaska

65000'N

60000'N

55 'OO'N

50 'OO'N

170'00'E 180'00'W '70'00'W

Longitude

160'00'W

65 <QO'N

60 <QO'N

II>

"

.z

~-'

55 <QO'N

<;>~..

50 <QO'N

.J ••.• 0

, : 'il..4~~" "

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65000'N

60000'N

55 'OO'N

50 'OO'N

170'00'E

Figure 4.--continued.

180 'OO'W '70'00'W

Longitude

'60'00W
65 'GO'N

60 'GO'N

.,

~

.3

~.J

55 'GO'N

oc;::.~

..

50 'GO'N

""." ."\.

59

: ~~ ••.-J1- I>

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 >: 10

65 -CO'N

60 -CO'N

55 ·OO'N

50 -CO'N

170·00'E 180 ·OO'w 170 ·OO'W

Longitude

160 ·OO'W

65 'GO'N

60 'GO'N

.,

~

.3

:;:;

o

.J

55 'GO'N

oc;::._

..

50 'GO'N

o

""." • 0 0 0 1

"\. 0 ~';;O!BYo'JJl.J1. e '0 0

..

Alaska

o 0.0 1 <- 1

2 > 1 <.;. 5

3 > 5 <- 10

4 > 10

65 -CO'N

60 -CO'N

55 -CO'N

50 -CO'N

170·00'E

Figure 4.--continued.

180 ·OO'W 170·00'W

Longitude

160 ·OO'W
60 COO'N

II>

"t:>

~"0

1_---.....2 1/ \

55 COO'N

65 COO'N

Q.~4

~ -. 0

"

60

.~~~~

"

• p

.

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 1C

65000'N

60000'N

55000'N

50 COO'N

170·00'[ 180·00'W

I

170 ·OO'W

longitude

160·00'W

50 ·OO'N

Q. ~

4

65 COO'N

60 COO'N

II>

"t:>

.z

:;;

o

-'

55 COO'N

50 COO'N

tI '," •

, :~~ ..~~ "

.

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50 ·OO'N

170·00'[

Figure 4.--continued.

180·00'W 170·00'W

longitude

1 60 ·OO'W
61

.

Alaska

60-o0'N1 \J / \t'-1,+'.121 1 22·.... 2·. I ~~~. ..........• -.'~ -'.J..~f("~ J -'-c:r:: _ r~60-00'N 11>

"U

.3

."

o...J

55'IJO'N-I . ' I" ~l ~~. ~,.~••• r55-aO'N ut (kg/ton)

I ~ r 00.0

4~ , p 1 <- 1

,I' 0 •• -it-i> 2 > 1 <- 5

", : "il.4bi' 3 > 5 <- 10 " 4 > 10

50"O'N~ ! ' , , , , ' , , , , ' , , , , ' , , , I ' , , , , ' , , , , ' , , , , ~50"O'N

170·00'E 180 ·OO'W 170 ·OO'W 160 ·OO'W

Longitude

65 I , , , , I , , , '~'-L' 't I , , 'lJO'N -1 Bvcotch sDe~ .6 olibutJ A' 'C'" I- 65 -aO'N

..

<i:)._4

65 -aO'N

60 -aO'N

50 ·OO'N

55 -aO'N

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 > 10

: "il.4V -it- e ,I '.' 0

,

65 'lJO'N

60 'lJO'N

50 'lJO'N

55 'lJO'N

11>

"U

.3

:g

...J

170·00'E 180 ·OO'W 170 ·OO'W

Longitude

160 ·OO'W

Figure 4.--continued.
62

.

Alaska

60 <OO'N-I '-1 / \ , ~ . I <J~ J' a.. r I-60 OOO'N

v

-0

.3

:g

-' j ~. ~ ~' -L

4 ".••

55 <OO'N I I - / t- ••.•• ~f!-- 55 ·OO'N

Halibut (kg/ton)

c;::. rr 0 0_0

., ~ 4; " 1 <- 1

••4-~" 2 > 1 <- 5

" "',0 : ~l' 4- 2 3 > 5 <- 10 / 4 > 10

50'00'Ni : ' , , , , ' , , , , ' , , , I ' , , , : ' , , , , ' , , , , Lo'Oo'N

170·00'( 180·00'W 170·00'W 160·00'W

Longitude

65 <OO'N-I Bvcatch sDe~ Aiolibut ~ _ 3' '7 '~'."..I , • " _ I , , , , I J- 65 OOO'N

'.

50 "CO'N

55000'N

60 ·OO'N

65 ·OO'N

Alasko

Halibut (kg/ton)

o 0_0

1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4- > 10

50 <OO'N

65 <OO'N

o

60 <OO'N

!P-~ 2

o ., 0 O' 4 4 4~"

o 2 4- ~ '-t. 2~~ 4- 4/'4:4~~~3 0 3 4- 0

55 <OO'N

v

-0

:J

-

""§ -'

170·00'( 180 ·OO'W 170 ·OO'W

Longitude

160 ·OO'W

Figure 4.--continued.
63

55 "GO'N

50 "GO'N

4>

"::J

-

~-'

55 "GO'N

<;::. ~ 0 1

•• 2 O·0 0 0 3~'-

o 0 0 tS .~o 3 'fJ'il481Y2 4 o 2 O~4 0

50 "GO'N

..

Alaska

Halibut (kq/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

55 ·OO'N

50 "GO'N

55 "CO'N

50 "CO'N

170·00'[ 1 80 ·OO'W 170·00'W

Longitude

150·00'W

55 "GO'N

50 "GO'N

4>

"

.;

"

-'

55 "GO'N

cPo-O..

50 "GO'N

o

o " ..•••..•. 0 : 'i;OJi,.••4~'- ~

..

Alaska

Halibut (kq/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10 4 > 10

55 "CO'N

50 "CO'N

55 "CO'N

50 "CO'N

170·00'[

Figure 4.--continued.

180 ·OO'W 170·00'W

Longitude

1 50 ·OO'W
. · Alaska

'"

<)~t c:7("O'OO'N

\J

I

;.' , -it../ - · ...,.. "U

~"0

-J

55 'CO'N~

. , "- I l~'w,,~

t55OOO'N

Halibut (kg/ton)

'C _

'T

o 0.0

1 

<- 1 4...t?- " 

> 1 <- 5 2

":~V 3 > 5 <- 10 

4 > 10

~50"OO'N

,

I I I ,I, I, , I I I, I I ,

, I ,,I

180000'W 170000'W 60 °OO'W

Longitude

I I , ,I,

,

,

'~'...L,'tl ,

h sDe~ " alibut J A'-<"" L- 65 "OO'N

65 'CO'N

60 'DO'N

Q)

"U

~

:g-J

55 'DO'N

'C,••

2 "'.' ° "

64

,._1>" '" J ••4-P-" ." "

·.

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65 "OO'N

60000'N

55°00'N

50 'DO'N

170°00'(

Figure 4.--continued.

180 °OO'W 170000'W

Longitude

160000'W

50 "OO'N
65

Alaska

60<QO'Nl \J / .• ", \"., <)~..•."-." ~ rf60000'N

4 ~ ••." 'f c::1=::

4 3 4 4 4 • -'J-. {~~ J _ CI>

"0

:J

<5

-' j ~ ~ ~-" ~l 4 4 4 ' ".

55 <QO'N I 4 4, ' , ' i!I",\ 55000'N

I 2 4; ~ "" ....

Halibut (kg/ton)

.po r" 0 0.0

.• ~ "p 1 <- 1

.••• ...J1-. 2 > 1 <- 5

4 "'",. : ~1Jtii 3 > 5 <- 10 , 4 > 10

50 '00'""1 : ' , , , , ' , , , , ' , , , , ' , , , : ' , , , , , , , , , Lo 'OO'N

170·00'( 1BO·OO'W 170·00'W 160·00'W

Longitude

65 <QO'N-I Bvcatch sDe~ Atalibut 1...., '5'/ '~'...I , , , ~ I , , , , I ~65000'N

50000'N

55000'N

60000'N

65000'N

Alaska

..

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

:~V4~. "'," .,

65 <QO'N

4

~~4

~

60 <QO'N

50 <QO'N

55 <QO'N

CI>

"0

:J

:g-'

170·00'( 1BO·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 4.--continued.
66

180 °OO'W

65 'CO'N

60 'CO'N

•• "0

"

:g-'

55 'CO'N

50 'CO'N

170°00'[

~~..•

" " ° " :..,...,~.3~"

170000'W

longitude

..

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

160 °OO'W

65000'N

60000'N

55000'N

50000'N

••

"0

~

"0-'

65 'CO'N

60 'CO'N

55 'CO'N

50 'CO'N

~~..•

, 0 "',' ° o ,

o

:..,...,~4~"

"

..

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50000'N

170000'E 180000'W 170·00'W

longitude

160 °OO'W

Figure 4.--continued.
67

170·00'E

<;::. ~

••

180 ·OO'W

55000'N

50 ·OO'N

60000'N

65000'N

Alaska

..

160 ·OO'W

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 > 10

170·00'W

Longitude

:WJ~"'~"

·'0

"'.' 0

0.•.••.

55 "CO'N

60 "CO'N

50 "CO' N

65 "CO'N

IU

":J

"0

...J

65 "CO'N

60 "CO' N

IU

"

.3

:g

...J

55 "CO'N

<;::. ~

••

50 "CO'N

"'..

..•.••. : WJ;....~,.

..

Alaska

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50000'N

170·00'E 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 4.--continued.
68

.

Alaska

60COO'N~ \J / \. , I '-.j y~ a.. ~60000'N

II>

-.:)

.3

:;:;

o

~55COO'Nl i I~I~ ~,.~~ .. J •... t!",.~ J-55000'N

Halibut (kq/ton) o 0 O~ 4~ ." 1 <- 1

, •• ....J1-" 2 > 1 <- 5

"",0 :'if..4bi' 3 > 5 <_ 10 ~ 4 > 10

1st quar er--No fishing.

50 COO'Nl I ' , , , I ' , , , I ' , , , I ' , , , ; , , , , I ' , , , I I-50 OOO'N

170·00'E 180·00'W 170·00'W 160000'W

Longitude

65 COO'N~ Bvcatch soe~ /Aalibut l. 3'7'~"""""'1eo ~ I-65 OOO'N

50000'N

55000'N

60000'N

65000'N

.

Alaska

Halibut (kq/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

: ~..4~....J1-" "

"" ° "

65 COO'N

o~4

60 COO'N

50 COO'N

55 COO'N

II>

-.:)

.3

:;:;

o

-'

170·00'E 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 4.--continued.
69

. ~O I ~

Alaska

V 

'-1-60000'N.a /\, <) .~... I '2'-

0

J / 0\ 

~"0

-'

55 "OO'N.•

, ...... , '----Jr' -,.~

t55OOO'N

Halibut (kg/ton)

<i:)._

··r

0.0 0 1<- 1

£:1-" .-Jl- t>

> 2 1 <- 5 :~ 3

> 5 <- 10 > "10 4

~50000'N

,,

I

,,

,,,

170000'W 806 ·OO'W ·OO'W

Longitude

I ,

,,I

,

'~'...L'')' , ,

tch SDer--,-: > . I nlirult f Y ~ • 65000'N

65000'N

60000'N

55000'N

50000'N

Alaska

I

160 ·OO'W

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

170·00'W

Longitude

: ~£:I-•• ~t>

"

1 80 °OO'W

tI •.•• 0 "

55 "OO'N

60 "OO'N

50 "OO'N

<i:). _

4

cu

"U

"

~-'

65 "OO'N

170·00'E

Figure 4.--Continued.
Table 13.--Estimated bycatch of Pacific halibut (in metric tons) by u.s. domestic groundfish vessels in the Bering Sea and Aleutian Islands

region by NPFHC area and gear type, 1990.

(Dashes indicate area not fished.)

Area " by gear

Total 5211457 5221640 53 511 type

1,973.27 1,231.13 131.44 4,852.75 359.38 52.54 2809 198.98 3.95 96.45 66.1" m.53

111.45 339.38 23.97 65.46 7.22 94 95.68 0.03 288 --4.6" 23.28

15.18 2.73 33.36 491.82-- 1,110.50 2,131.15 274.28 107.57 11.68 84.04 29.0"

13.54 21.51 3.14 000.148 022.13 0.02 --0.3" 3.52

2,544.08 1,617.66 156.17 7,344.80 474.17 1,408.30 52.06 684 139.680815 837.68

34.6" 220 6.5" 07X 19.2" 2.1" 0.1" 19X 1.5" 11.4"

-..] o
71

and Pacific halibut bycatch (in metric tons (t» by target fishery and

NPFMC zone in the Bering Sea and Aleutians Islands region, 1990.

Pacific hal ibut

% of total % within Pacific kg per t ofcatch hl Bycatch ibut(t)bycatch (t)groundfish zoneZone

35,215.644.8% 426.44 12.1 5.8% 1

12,124.72.6% 82.06 6.8 11% 217,014.62.1% 66.90 0.9% 3.93

64,354.9 575.40 8.9 - 7.8%

31,215.30.7%6.630.20.1% 1

788,589.82.6%83.421.1% 02

388,334.30.7%23.170.3% 0.1

1,208,139.4 - 113.220.1 1.5%

17,479.82.8% 26.86 0.4% 1.5 181,997.32.5%78.16 1.1% 1.02

19,350.2 0.6% 20.36 0.3% 1.1

118,827.3 125.38 1.1 - 1.7%

31,635.346.2% 440.10 13.9 6.0% 1

100,800.4 1,285.40 40.4% 17.5% 12.8

46,717.9 1,509.04 47.0% 20.5% 32.3

179,153.6 3,234.54 - 18.1 44.0%

136.8 18.792.0%137.4 0.3% 1

44,879.7 1,337.50 42.0% 18.2% 29.85,940.9 404.07 12.6% 68.0 5.5%

50,957.4 1,760.36 34.5 - 24.0%

542.1 3.67 0.4% 6.8 0.0% 1

511.2 4.08 0.1X 8.0 0.1%

364.8 13.77 0.4% 37.7 02%

1,418.1 21.52 15.2 - 0.3%

71.6 5.790.6% 80.9 0.1% 1

3,776.2199.08 6.3% 52.7 2.7%

13,361.920.9% 671.79 50.3 9.1%17,209.7 876.66 50.9 - 11.9%

nfnfnf nfnf 1

352.5 3.20 0.1% 9.10.0%

110.6 1.64 0.1% 14.80.0%4.84 463.110.5 - 0.1%

323.6 24.40 2.6% 75.4 03% 1

487.6 48.72 1.5% 99.9 0.7%

2,733.1 212.74 6.6% 2.9% 77.8

3,544.3 285.86 80.7 - 3.9%

nfnfnf nfnf 1

6,847.41.9% 60.51 0.8% 8.8

24,655.75.6% 180.18 2.5% 7.3

31,503.1 240.69 7.6 - 3.3%

nfnfnf nfnf 1nfnfnf nfnf 2

30,807.73.3% 106.33 1.4% 3.5

30,807.7 106.33 3.5 - 1.4%

116,620.1952.68 - 13.0X8.2 1

1,040,366.83,182.13 3.1 - 43.3X

549,391.7 3,209.99 5.8 - 43.7%

1,706,378.6 7,344.80 4.3
Table 15.--Monthly bycatch rates (number per metric ton of catch) and average weight (kg) of Chlonoecetes balrdl snow (Tanner) crab taken In domestic

groundflsh fisheries by gear type, target fishery, and NPFMC area,1990.

Area 511

Area Area 517 54021215 564 513

Avg. Avg. Rate

wt.

Jan.

0.30 --23.697 -- 7.530 0.48 14.402 nsns-- 3.476 0.24 0.45 108.660 0.43

0.36 --10.643 -- 1.470 0.56 -- -- 4.589 ns ns 11.183 0.48 0.51 116.332 ns

0.363.593 -- -- 3.036 0.48 3.316-- 0.12

-- 5.793 0.000 1281 0.2200 0.16

2.303 0.681 0.2038 0.24 12.670 -- ------- 4.738 ns0.08ns1.641 0.37 0.34 --10.388 - --- 0.000 28.741 4.606 0419 0.00212 0.32

-- -------- 1.511 0.19 -- - - 0.000 0.00

Aug.

-- ---- 4.389 0.678000 0.24300 -- -- 5.928 0.11 0.000 0.00-- ---- 24.634 0.926 0.32 0.24 -- ------ 1.477 0.10 -- - - nsns

2.288 0.170056 0.28 0.019 0.000 26.918 -.J

-.------ ---- -- tIJ

-- --- --- 17.366 6.386 0.12 0.1-- ---------- 0.975 0.46

12.1928801 3.929 0016.798 0000 2.97 710 1.799 0.560017 0.32151 0.64433 12.059

Jan.

0.31 - 0.022 - -------- 1.559 nsns 0.000 0.75 0.00 -- ---- ns ns

0.520.302 -- -- 0.003 0.82 -- -- 0.895 1303 24.235 0.6227 0.62 .. 

0.210.355 -- -- 0.053 0.44 0.000 ns ns-- 0.01714 0.0025

0.21 --0.656 -- 0.031 0.39 -- ---- 0.048 11.120 0.41 0.30 -- - - 0.000 0.00

0.30 --3.387 -- 0.323 0.74 -- ---- 2.580 0.01900 0.042 0.150028 0.

-- -------- 0.135 0.04 -- ----- 0.594 0.000 0.0022

-- ----- 0.000 0.00 -- --

0.000

-- ---- 0.000 0.00 0.008-- 0.20 -- -- 0.000 0.000 0.00 -- -- 0.000-- 0.000 ------

0.00 -- ------ 3.716 0.000 0.003

-- ------ 1.556 0.19 -- -- 0.000 0.00-- ---------- 0.000 0.00

Year

0.25 --0.649 -- 0.047 0.46 -- -- 0.097 0.049 0.000667 1.252 0.312900 0.1246
Table 15.--Continued.

Area 511

Area Area 5174022 515621 5134

Avg. Rate

wt. wt.

Jan.

0.19 17.164 -- -----

n - 18.946 5.078 0.256 0.220 0.12 n --n -- 0.049 0.10

0.20 19.959 -- -- 0.519 0.39 -- -- 0.487 3.785 ns0.1305ns -- ------ 0.997 0.14

0.33 --1.867 -- 0.124255 0.47 -- 0.15

-- 2.816 0.0009282 0.20124 0.00

0.24 --3.079 -- 1.292 0.49 -- n0.086 0.07 -- n5.401 0.06700 1.805 0.25010 0.2

13.104 182 0.340 0.15 --9.973 0.049 n0.823008 6.464 190 0.41 0.15371 0.19

-- 0.000 ----

0.00 -- 0.062 n

0.31

n 0.759 ns ns 0.0001 0.0016

-- ------ 0.000 0.00 -- 0.343015 1.074 0.051736

-- ------ 0.000 0.00 -- n0.810 0.18 -- -- 0.839 0.0271 0.190 0.20611 0.7-- --n --- 0.0001 0.593 0.1005 -- 0.04204 0.043-- 16.056 ----

0.99 -- -- 0.014 0.30 n 10.087 ns ns 0.21 -- -- 0.293 0.13 

-..J

-- 65.m ----

0.15 -- --------- 0.286 0.27w

-- --n------- 20.3670.22 -- ------ 0.001 0.05

13.104 1.227 0.39 0.1523 10.254 -- -- 0.586 5.657 004.0 6337 o.m0.10829 0.157

Jan.

0.00 --.000 ----- - 0.000 0.00 --n n -- nsns

0.900.002 -- -- <0.0010.50 -- -- 0.37 0.000 0.00

0.54 --0.004 -- <0.0010.61 -- 0.000 0.00105 0.00591

0.20 --0.003 n <0.0010.80 -- --ns--ns -- 0.007 ns0.00057 0.0042 0.09ns

0.002 0.432 --0.011 -- 0.000 0.00 <0.001 0.000 0.00 0.50

0.00 --.000 -- 0.000-- -- 0.013 0.08 n n 0.014 0.0005 0.002716

0.66 --0.009 -- 0.000 0.117000 0.005 -- -- 0.002 0.00376 0.053722

1.32 --0.613 -- 0.298 0.0300 0.00267 -- -- 0.673 0.01238 0.28179

0.00 --.000 -- 0.188 0.35 -- -- 0.005 0.17 0.042 0.00038 0.001827

0.00 --0.000 -- 2.532 0.23 0.006 0.10 -- n0.103 0.00406 0.351 0.2200

-- ---------n 0.000 0.00 -- --

0.000

-- ----n-----n 0.000 0.000 0.00

0.011 ns0.185004 0.011006 0.0 0.350017 0.2 0.0068 0.40.004 ns
Table 15.--Continued.

Area 511

Area Area 54017 5212614 5513

Avg. Rate

wt. wt.

Jan.

0.000.000 -- ------ 0.000 0.00 n -- -- -- ns ns

0.000.000 -- 0.000 ----

0.00

- 0.000 - -- 0.007 0.70 -- -- 0.000 0.00

--

ns ns

0.71 --0.986 -- 0.000 0.00 -- --ns--ns -- 0.000 0.000 0.00

ns ns 0.000 ----0.00 ns--ns-- -- 0.000 0.000 0.00 -- --ns ns

-- ------- 0.249 0.17 -- -- 0.543 ns0.80400 0.170041ns

0.150.101 -- ---- 2.223 0.05 0.032-- 3.168 0000 0.003314

0.000 -- -- 2.861544 0.39 -- 0.11 0.290 0.541000 0.26007

--

0.000 -- 0.035 0.89 2.361-- 0.53 -- - - 1.553 4.108 000 0.271 0.00

0.41 --3.049 -- 2.506 11.846 09 0.1429 0.08 -- -- 3.161 0.000245 0.30027

140.802 0.17 -- -- 0.477 0.481000 0.00418 -- -- 15.477 0.145000 0.100 0.19 n -- -.J

~ 

-- --n------- 0.377 0.30 11.633 0.24 ---- ---- nsns

0.27 --2.276 -- 0.218 10.938 1280 0.24 0.39 0.08 -- -- 6.109 0.000 2128 0.170021

Jan.

-- ---- ns--ns n ns ns----ns

-- ---- nsn ns --ns --ns

-- ------ 0.000 0.00 -- ------ 0.000 0.00-- ---- 0.000 0.00-- ------ 0.000 0.00 n --

0.000 -- -- 0.000 0.00

ns ns ---------- 0.000 0.00 -- --

0.000

nsns ns ------ 0.008 0.000 ns0.000 0.00 12ns

-- ---- 0.000 0.00 -- --

0.000 -- -- 0.000

-- 0.000 ----------

0.00

-- --

n------nn-- 0.056 0.75

-- --- -----n 0.000 0.000 0.00-- ----n ns ns

ns ns ------ 0.002 0.0 ns0.0060 0.7500 1.2ns
Table 15.--Continued.

Area 511

Area Area Area 54017 56145 5221 522 513

Avg. Rate Rate

wt.

Jan.

-- -------.--- 0.051 0.000 0.6600

-- ---- ns--ns 0.000 ---- 0.0202 0.00967

-- ----.--- 0.000 0.0007 0.005-- ------- 0.000 0.00 -- 0.0001 0.40-- -------- 0.000 0.00 -- eo

0.0007 0.00493.584 0.5 --0.000 ---- 0.000 0.02500 0.015 0.00876 0.00

-- -------- 0.06200 0.00 -- 0.03500 0.01 0.62700 0.31ns ns 3.576 ----0.90 -- - - 0.000 0.00 -- 0.048 0.0100 0.008 0.007549 0.60

--

------ 0.000 0.00 -- -- 0.085 0.04300 0.016 0.586400 0.22

-- ----- 0.000 ns--ns 0.00 -- -- 0.091 0.000124 0.436600-- ---- 0.000 0.00 -- -- 0.018 0.00016 0.0018 0.00-.J

0.00024 0.23694 0.2000.760 0.08200 0.047lJ1 

---- -- --

3.584 0.821 0.238580.658 -- -- 0.000 0.05411 0.00027 0.00586 0.3400

Jan.

-- --------- ns--ns --------ns

-- ----.----eo-- nsns

-- --------- 0.000 0.00 eo ----eo---- 0.000 0.00

May

ns ns -------- 0.000 0.00 -- ------ 0.000 0.00

-- -------- 0.000 0.00 -- --

0.000

-- ---- ----- 0.000 0.00 -- --

0.000 -- -- 0.000

-- ------ 0.000 0.00 -- --

0.000

-- --eo---- ns--ns -- 0.000 0.00 -- --

nsns

-- -------- 0.000 ns0.00ns 0.000 ----0.00-- --------- 0.000 0.00

-- -------- nsns

ns --------- 0.000 0.00 -- --

0.000
Table 15.--Continued.

Area 511

Rate Avg.

wt.

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Pot vessels (all targets)

Jan.

Mar.y Feb Apr. June July

43.915 35.977 0.3844

10.175 --

0.18 0.52 --6.m

0.22 --O.178 -- 17.130 0.550.50 38.348 -- -- 6.545 0.62

Dec. Yar

43.915 10602 0.5536 0.44 23.417

Dashes indicates areas not fished.

ns = Fishing occurred but no sampling by observers.
Table 16.--Monthly bycatch rates (nlDber per metric ton of catch) and average weight (kg) of "other" snow (Tanner) crabs· taken In domestic groundflsh

fisheries by gear type and target fishery, 1990.

Area 511

AreaArea540 5167212 5134 51522

Avg. RateRate

wt.wt.

Jan.

0.25 --0.752 .. 1.451 0.33 -- -- 0.053 ns0.20 ns 3.253 419 0.15

0.270.526 -- - - 8.452 0.36 .. eo 0.073 10.235 ns0.10 0.34 nsns ns

0.23 --0.181 -- 14.685 0.27 -- -- 0.231 0.17 11.100 n

0.347 0.3220 0.1 2.198

0.000 10.2018 0.00 883 --0.106 --n n-- 0.678 ns0.17ns

0.000 0.3200 n 0.740 --n -- 0.000 16.124 0.00016 0.2300 0.26

-- -------- 48.2990.09-- eo 0.000 0.00

Aug.

-- ------ 27.668 34.814 12.670 0.3721 0.19 -- -- 9.006 0.21

--23.673 0.05

n eo-- 109.921 24.319 0.19 0.28 -- ----n 22.1620.50 ns -- nsn ------ 155.185 17.681 0.16 0.24 -- --- --- 0.000 0.00 -- --2.449 0.09 n n-..]

-..]

-- n -- 0.17 24.885 0.08-- n---eo---n 0.000 0.00

23.852 9975 24.812 18696 0.00048 9.102 0.002719 0.2608 0.092516 0.9 3.841 0.52

Jan.

0.000.000 -- --

eo-- 0.000 ns0.00 ns 2.123 0.38 -- --n -- nsns

0.64 --0.023 -- 2.818 0.11 0.298 0.44

-- 0.057 3.029 0.20046 0.000

0.22 --0.043 0.922 --

0.20 1.081 0.000178 0.96 0.150022 0.56 0.000

--0.045 -- 0.178 0.28 -- --eo-- 0.496 0.000163 0.25100 0.000

0.25 --1.131 -- 0.000 0.00 -- -- 0.000 0.00044 0.119 0.0026 0.3417 0.140

n --eo-- 0.000 0.00 eo ------ 10.803 0.000 188.341 0.00 0.24 0.14-- ------ 0.000 0.00 -- --

0.18000 0.15090 0.019

eo ---- 0.000 0.00 0.161-- 0.18 -- -- 0.593 0.000 0.0033-- n 0.000-- ------ 0.000 0.00 -- ---- 0.364 0.000 0.020 0.000-- ----n -- 0.058 0.09eo -- 0.000 0.00-- --..-eo---- -- 0.000 0.00

Year

0.25 --0.115 -- 0.926 0.18 - - -- 0.079 0.000 5494 0.000324 0.00241 0.0021 7.127
Table 16.--Continued.

Area 511

Area Area AreaArea540 5127621 51453522Avg. Rate RateRate

wt. wt. wt. wt.wt.

Jan.

0.911.218 -- ----- 4.377 0.000 10.24 0.00 0.27 048 -- -- -- 0.049 0.10

0.200.489 -- - - 14.671 0.15 - - -- 48.347 1.935 ns0.24 0.14 ns -- ---- -- 1.475 0.18

0.170.189 -- -- 25.0320.15 -- -- 7.581 0.21 -- -- 11.233 0.267418 0.122 0.28 0.12 7.188

0.18 .-0.158 -- 3.745 0.21 .. .. 5.701 0.27 -- -- 4.761 80.60409 0_11 0.11 0.11 0.000

0.000 2141 0.260030.619 -- -- 0.016 0.575249 0.000252 0.00 0.403123 0.5209 0.000

-- ----- 0.000 0.00 -- -- -. -- 0.00 <0.001 4848 0.00 0.18 0.06 0.000

-- -------- 0.000 0.00 -- -- 3.037 0.00035 0.0058 0.3522 0.019

-- ------ 13.356 0.41 -- -- 10.008 0.22 -- -- 3/351 0.066 1772 0.162 0.26 3.257

-- --.--._- -- 0.000 0.00 -- --

0.00177 0.45 0.17 0.000

-- --- --- 103.5570.44 0.000-- 0.00 -- ---- 2.109 0.28 0.009 -- 0.20

29.530 -- 0.27 -- ---- -- 0.000 0.00

-..J

.

----- -. -- -- OJ

-- --------- 0.000 0.00 -- 0.111 .

-- -. 0.20

10.690 0.000 0.5100 0.7 .-0.559 -- 12.630 5.928 003.247 749 0.081640 0.3 2.968

Jan.

0.00 --0.000 -------- 0.000 0.00 -- ----- -- nsns0.00.000 -- - - 0.037 0.15

-- 0.000 0.00 -- --

0.51 --0.002 -- 0.017 0.39

-- 0.000 0.00724 0.000 0.200 0.41

0.10 --0.001 -- 0.001 0.18

--

ns--ns -- 0.025 ns0.006 0.0033 0.18 0.000 ns

0.015 0.2180.011 -- -- 0.000 0.00 -- -- 0.002 0.000 0.0046 0.00 0.000

0.000 -- -- 0.000-- -- 0.012 0.031 0.0045 0.23 0.000<0.001 1.0 -- -- 0.000 0.000 0.00 -- n0.002 0.563 0.259 0.17 0.0090.00 --0.000 -- 43.607 0.000 0.00 0.15 -- -- 0.000 0.929 0.219 0.14 0.1410.000.000 -- -- 1.841 0.13

-- <0.0010.13 -- -- 0.010 0.841 0.0026 0.19 0.000

0.00 - 0.000 - -- 2.837 0.28 -- -- 0.000 0.00 -- -- 0.010 <0.00142 0.21 0.07 0.37 0.12 0.197

-- ------- 0.000 0.00 -- --

0.000 0.000

-- ---------- 0.000 0.000 0.00

1.076 <0.001 ns0.0080484 0.221530 0.4017 0.12 0.048 ns0.001<0.00113
Table 16.--Continued.

Area 511

AreaArea540 5126721 5134522

Avg. RateRate

wt.wt.

Jan.

0.000.000 -- ------ 0.000 0.00 -- ---- -- ns ns

0.000.000 - - ------- 0.000 0.00

- 0.000 - -- 0.770 0.15 -- - - 0.000 0.00

--

ns ns

--0.000 -- 0.000-- --ns-- ns -- 0.000 0.000 0.00

ns ns 0.000 ----0.00 nsns-- 0.000 ----0.000 0.00-- --ns ns

-- --------- 0.061 0.23 -- -- 0.217 9.030 0.3417-- --

ns ns

0.000.000 -- ---- 0.000 0.00 -- -- 0.200 5.484 0.1820

0.000.000 -- -- 73.1610.15 -- -- 0.306 0.25

-- 0.015 2.678 0.240

-- --- - 0.408 0.31 0.000-- 0.00 -- -- 0.247 11.423 0.00 0.42 0.11 0.000

0.30 --1.439 -- 21.010 14.241 0008 0.21 0.7 0.52 -- -- 0.065 0.387 0.3316-- -- 0.000 0.00

0.48 0.817 0.000 -..]

0.40 --1.284 -- 0.37 0.09 45.184 0.00 -- -- 0.48 5.804 -- - --- \D

-- ----- 0.000 0.00 -- -- 0.053 0.22 ---- ns ns

0.30 --0.328 -- 5.663 16.713 0042 0.2419 0.15 -- -- 0.266 0.000 589 0.00451 0.000

Jan.

-- ----- ns--ns --ns-- ns

-- ------ ns--ns --ns-- ns

-- ---- 0.000 0.00 -- ----- 0.000 0.00-- ------ 0.000 0.00-- ----- 0.073 0.84 - - -- 0.000 0.000 0.00-- -- 0.000

ns ns 0.000 ------

0.00 0.188-- 0.000 0.8600 0.000

nsns ns ------ 0.000 0.010732 ns0.000 0.01092 0.0ns ns

-- ---- 0.000 0.00 -- --

3.060 0.90-- -- 0.000 0.00

-- ------- -- 0.000 0.00- - ------- - -- 0.000 0.00-. -------0.000 -- 0.000 0.00-- ----.--- --- nsns

ns ns ------ 0.011 0.287 ns0.002 3.060 0.00984 0.01 0.000 ns
Table 16.--Continued.

Area 511

Area AreaArea51740 5126213 514522

Avg. Rate RateRate

wt. wt.wt.

Jan.

--

n------ 0.123 0.008 0.550

-- --- -- ns--ns 0.000 n----n

0.313 0.00 1.12 0.000

-- -- ..-------- 0.000 0.000 0.109 0.0053 0.000

-- ----n-- 0.000 0.00 -- --

0.000 0.000

-- -- ----.. 0.000 0.00 .. n

0.000 0.006 0.39 0.000

0.000 --0.000 ------ 0.000 0.00038 0.00033 0.30055 0.032

-- -------- 0.000 0.00 -- n0.225 0.000 0.180 0.30049 0.55 0.004

ns ns 4.081 ----0.53 0.000 0.00 ..-- n0.256 0.161 0.005 1.2 0.000

-- ----- - 0.092 0.61 0.000-- 0.00

-- 0.292 0.000 0.136 0.00521 0.000

-- -- -- 0.000 ns--ns 0.00 0.399-- 0.000 0.544 0.635100 0.49 0.071

0.000 0.094 0.502078 0.012 0.000 0.000597 ex>

-- ----

0 

0.66 --1.164

-- 0.284 1.95 -- -- 6.631 0.37 -- -- 0.092 0.269 0.5019 2.305

0.000 129 0.66005 --1.008 -- 0.132 0.000221 0.000176 0.50069 0.5637 0.063

Jan.

-- ------eo-- ns--ns --

ns

--- -- nsns

-- --n------ -- nsns

---- -- ------ 0.000 0.00 -- --n ---- -- 0.000 0.00

-- ---------- 0.000 0.00

ns ns ---------- 0.000 0.00 -- --0.00

---- -- 0.000 0_00

-- ------ 0.000 0.00 -- --

0.000 0.000 0.000

-- -------- 0.07362 1.39 042 -- 0.000 0.00-- -- 0.000

---- -- 0.114 -----

0.50 -- -- 0.073 0.033 0.4760

----

ns

---------ns -- 0.000 0.00-- --

nsns

-- ----------- 0.000 ns0.00ns 0.000 -- -- 0.00-- 0.000 ---------- -- 0.00-- -------- nsns

ns ------- 0.047 0.43 0.066 0.015 0.72 -- 0.000 0.00 0.60 0.00 0.000
Table 16.--Continued.

Area 511

Rate Avg.

wt.

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Pot vessels (all targets)

Jan.

Har. Apr. Hay Feb.

-- ---eo---- -- nsns

0.000 0.00 --0.000 ---- 8.658 0.400.000 0.38002.557 -- -- 0.000-- eo

72.682 0.18 7,735.791 0.20

0.000 0.34000.094154.755 034 -- -- 0.000 0.00

. -- - 923.538 9.669 0.460.15

65.594 0000 0.00 0.45 --0.000 -- 0.000 87964 77.422 0.00 0.4031 -- 320.106 0.12

34.944 0000 0.00 0.51 --0.000 -- 0.000 ns0.00 nsns ----- -- ())

-- ----- nsns u u •....

Year

91.506 000 0.3600 0.38 --1.503 -- 40.675 0.000 ns384.395 0.00 0.23 0.13 753.898 ns 0.16

*Species include Chionoecetes 2ei.!.!.2, ~. an!lulatus,~. tmDW, and !;,. bairdiX~. 22ili.Q. hybrid crabs.

Oashes indicate areas not sampled.

ns = Fishing occurred in this area but no sampling by observers.
180·00'W

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

170·00'E

"'..

" "

82

170·00'W

Longitude

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

1 60 ·OO'W

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65 ·OO'N

60 "CO'N

55 "CO'N

50 "CO'N

65 ·OO'N

60 "CO'N

55 ·OO'N

50 "CO'N

170·00'E 180·00'W 170·00'W

Longitude

1 60 ·OO'W

Figure 5.--Average incidence (no./t) of ~.bairdi Tanner crab in the

u.s. domestic fisheries by quarter, target fishery,

gear type, and 1/20 latitude by 1/2· longitude areas

in the Bering Sea-Aleutians Islands region, 1990.
55 "CO'N

50 "CO'N

55 "CO'N

50 "CO'N

170000'E

55 "CO'N

50 "CO'N

55 "CO'N

50 "CO'N

170·00'E

Figure 5.--continued.

,t "." ° "

180·00'W

tI "._ 0

"

180·00'W

83

170·00'W

Longitude

170·00'W

Longitude

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

150·00'W

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

150·00'W

55 -aO'N

50000'N

55 ·OO'N

50 ·OO'N

55 ·OO'N

50-aO'N

55 -aO'N

50 -aO'N
84

50 COO'N

55 COO'N

60 COO'N

65 ·OO'N

..

Alaska

Boirdi Tonner (no/ton) o 0,0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

" •• 0

..•.•.

50 "OO'N

55 "OO'N

60 "OO'N

65 "OO'N

.

Alaska

60"OO'N-!\r' /,\, \.. ,I <:J~' ~ rl-60COO'N

II "0

~

'0

-' ~ ~ ~ ~ .. ~L

. '1 1 ••

55 "OO'N I - .. ,'1 1 , • Cll'jI-,,- 55 COO'N I 0 1 ~ 1·· ••

Boirdi Tonner Cno/ton)

o r' 00,0

~ ,,1 <- 1

4/ • ~~I> • 2 > 1 <_ 10

" •••••••0 : 'iWt-' 3 > 10 <- 25 ~ 4 > 25

50'<>O'N1 : ' , , , I ' , , , I ' , , , I ' , , , : ' , , , I ' , , , I [50'<>0'N

170000'E '80 ·OO'W '70 ·OO'W '60 ·OO'W

Longitude

65 "OO'N-I Bvcatch SDe~ /'6airdi TaRner 3 '7 '~'.,. I " " ~ I , , " I t- 65 COO'N

, 70·00'E 180 ·OO'W 170·00'W

Longitude

160·00'W

Figure 5.--continued.
85

65 COO'N

60 COO'N

55 COO'N

0·0 " •• 0 p

" 0 ~ 'Il..JV.-P- <> o' " 0 0

50 "CO'N

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

4 > 25

65000'N

60000'N

55°00'N

50000'N

170°00'[ 1 80 °OO'W 170000'W

Longitude

160 °OO'W

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

" •• 0

"

o <>

~ed

~<;;:.4Vo 0 0 0 0 ~

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

4 > 25

65°00'N

60000'N

55°00'N

50000'N

170°00'[

Figure 5.--continued.

180000'W 170000'W

Longitude

1 60 °OO'W
86

50 ·OO'N

55 ·OO'N

60000'N

65 ·OO'N

AlaskD

·.

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

01.'

00 00 p

0' 0 tOO 0 o~, r:i 0 o 0 "'," ~ 0 O()<;r.4C;- 0 0 0 o 'C / 0

50 "CO'N

60 "CO'N

55 "CO'N

65 "CO'N

· Alaska

.....,~.'\ ~ <)~ rr°'OO'N

f c::7: -~ - 

·~....J .z:;:: 0 ~

SS'OO'N~

" • r-L55000'N

o 0.0

1

<- 1 

~,r:i 2 > 1 <- 10 

: <;f.4C;- 0 3

> 10 <- 25 4 > 25

I

:

l50000'N

,

I I

, I,,, , I I I , ,

,'60·00'W '70·00'W 80 ·OO'w

Longitude

:5

'/'~~1

, ,I II I I

I I

J- 65 OOO'N 

8vcatch /Sairdi sDe~ TaMer ~

170·00'[ 180 ·OO'W 170 ·OO'W

Longitude

, 60 ·OO'W

Figure 5.--continued.
65 <CO'N

60 <CO'N

55 <CO'N

50 <CO'N

87

Target Bycatch Fisner-;>'; sp~

Gear type;

Quarter;

Year:

2 o

010 .

••••~ 0 0100.0

"'00'1 Q 100 1.-12.1-800

1 0 ~ '0..""0t1 0,'0 1 'PW!';-O0 0 0 0 0

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65·00'N

60000'N

55000'N

50 ·OO'N

60 <CO'N

'"

"0

~

1

'0 ~j~

4

~ .. 3

01.0.

o 0 0.0

0'0 Q 0 1~8 00 o ~ '0..""0t1 ~'PW!f;11'''0 0 0 0 0 0

65 <CO'N

50 <CO'N

170·00'(

170·00'E

180 ·OO'W

180 ·OO'W

170 ·OO'W

Longitude

170·00'W

Longitude

160 ·OO'W

Alaska

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

160 ·OO'W

65000'N

60 000' N

55000'N

50000'N

Figure 5.--continued.
180000'W

65 'CO'N

6C JO'N

55 'CO'N

50 'CO'N

"'.' ° , .'

88

170 °OO'W

Longitude

.

Alaska

Bairdi Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65 ·OO'N

60000'N

55°00'N

50 ·OO'N

65 'CO'N

60 'CO'N

55 'OO'N

50 'OO'N

Figure 5.--continued.

" '. ° "

180000'W 170000'W

Longitude

.

Alaska

Baird; Tonner {no/ton} o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

160 °OO'W

65000'N

60 ·OO'N

55 ·OO'N

50000'N
89

.

Alaska

60'IJO'N~ V / \. ':I U v,v ~ I <::b~~Gr\"1.- ~ ~t-60000'N o I / \""'-"11t. II Q) '"

:E

o-J

SS'lJO'N-t , ' I ,':" ·'I'.Af(iJ>r.<-",.~ rSS'OO'N

I <> f'" .",,;";"'01"'/""1

"'~ ,II 1 <- 1

, .•.-p.- II 2 > 1 <- 10 "",0 : <;r..4C#' 3 > 10 <- 25 ~ 4- > 25

SO'IJO'N~ ~ ' , , , I ' , , , I ' , , , I ' , , , I ' , , , I ' , , , I ' , , , I ~50000'N

170'00'E 180'OO'W 170 'OO'W 160'OO'W

Longitude

65'IJO'N-J I""Bvcatch SDe~ I", '~'....d>..'~I' , " airdi Tn n••r "y £ '(.,. L65000'N

..

5S'00'N

60 'OO'N

55 'OO'N

50000'N

Alaska

150'00'W

Bairdi Tanner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25 4- > 25

170'00'W

Longitude

180 'OO'W

o 0

"',' 0 0 0 0 0 0 p , 0 ~WIYO~e o· 0 ~o 0

5S 'lJO'N

60 'lJO'N

170'00'E

55 'DO'N

50 'DO'N

Figure 5.--continued.
65 COO'N

60 COO'N

55 COO'N

50 COO'N

170·00'E

65 COO'N

60 COO'N

55 COO'N

50 COO'N

170·00'E

Figure 5.--continued.

'80·00'W

180·00'W

90

170 ·OO'W

Longitude

170 ·OO'W

Longitude

.

Alaska

Bairdi Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

:5 > 10 <- 25

4 > 25

, 60 ·OO'W

..

Alaska

Bairdi Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

:5 > 10 <- 25 4 > 25

160·00'W

65 ·OO'N

60000'N

55 OOO'N

50000'N

65 ·OO'N

60000'N

55000'N

50000'N
91

.

o I ~.., Alaska 50<QO'N-I V / \, •. '.0" 2, <J~' ~ r~50000'N

'~'.

o CI>

"0

.;!

~

-.J j ~ ~' --l o '.0 ••55 <QO'N I. ~.4 .•...• ~f~ 55000'N

Bairdi Tonner (no/Ion)

o f' OM

~ p 1 <- 1

•••• -J1- •. 2 > 1 <- 10

" ••••••••0 : 'if,.4~ 3 > 10 <- 25 ~ > 25

50'00'N1 : •••• , •••• , ••• , , ' , , , : ' , , , , ' , , , , Lo'Oo'N

170'00'[ 180'00'W 170'00'W 150'00'W

Longitude

55 <QO'N-I Bvcatch sDe~ Aoirdi TaMer 3'7'~"""""" .,. ~ ~55000'N

50000'N

55000'N

50000'N

55 'OO'N

Alasko

..

Bairdi Tonner (no/Ion) o 0.0 1 <- 1

2 > 1 <- to

3 > 10 <- 25 ~ > 25

"'.' 0

.•.•.

50 <QO'N

55 <QO'N

50 <QO'N

55 <QO'N

170'00'[ 180 'OO'W '70'00'W

Longitude

, 50 'OO'W

Figure 5.--continued.
92

. Alaska . 

/\. \... <J~J: I ~60000'N .a 

c0-

"

~:g-J

55 ~N~

"

• ~l55'00'N

Other Tanner bno/ton)

'-r~ o o.

1

<- 1 

/;tt'•••.J-. > 1 <- 10 2 

,

:~ > 10 <- 25 .3 

> 25 ...

I

:

[50 "CO'N

,,

I

, , I

180 170000'W 160000'W 'OO'W

Longitude 5'/'~~

I ,

,.I

.

,

I- 65 OOO'N 

BvcatchAther SDe~ TOMer -~

50000'N

55000'N

60000'N

65000'N

Alaska

..

160000'W

Other Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

••. > 25

170'00'W

Longitude

tI -. 0

"

50 «QO'N

55 «QO'N

60 «QO'N

65 «QO'N

Figure 6.-Average incidence (no./t) of "other" Tanner crab in the

u.s. domestic fisheries by quarter, target fishery,

gear type, and 112° latitude by 1/2' longitude areas

in the Bering Sea-Aleutians Islands region, 1990.
93

.

Alaska

60"CO'NfV ~\ .... ~ <)~.~.-.. ~ 160"CO'N

.'- ,. ~ c;::7;

" '3 '. 3 3 1 0 • -'on("-'? J 0; Q)

't:)

~

'0

-' j ~ ~·-t 55 "CO'N 0 '> .. ""fl." '. 55 "CO'N I 3 2 ~ 2'· .•.

Other Tanner (no/ton)

o f' oO.b

~ •• 1 <- 1

.•. ...J1-" . 2 > 1 <- 10

""',0 : ~I!:*-'" 3 > 10 <- 25 ~ 4 > 25

50"CO'Ni : ' • , • I ' , , • I •••• I : • , • , I ' • , , I l50"CO'N

170°00'[ , 80·00'W 170·00'W 160·00'W

Longitude

65 "CO'N~ Bvcatch sDe~ /Other TaMer 'j '/ '~~I , , • ~ I , , , , I J- 65 "CO'N

50 "CO'N

55 "CO'N

60 "CO'N

65"C0'N

Alaska

..

Other Tanner o o.b(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

50 "CO'N

55 "CO'N

60 "CO'N

65 "CO'N

170·00'[ 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 6.--continued.
94

. .

Alaska

...._--, •......... ~ <)~ 'f°,"O'N

'" ; .• , v '0, ~-~~f c;::r; 

"0

~"0....J

55 "OO'N-t

I ~ I , __ .A ~ ••,,~•••

t55"OO'N

Other Tanner ~o/ton)

o O. ')/

<- 1 1 ."

bt'" ..J1- " > 1 <- 10 2

:~ > 10 <- 25 3

> 25 4

. ~

,.

I

.,,

,

.,

I

,,

,

,.

,

.,

~ 50 "OO'N

170·00'W 806 ·OO'W

Longitude

, ,

,I.

,~'...h-'!;',

,

h SDe~

<I ther Ta er j ..,(' 'C'" - ~65"OO'N

..

Alaska

Other Tanner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

50 ·OO'N

55 "OO'N

60 "OO'N

65 "OO'N

60 "OO'N

50 "OO'N

55 "OO'N

65 "OO'N

170·00'[ 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 6.--continued.
. Alaska

" U

~ I

<)~I a.. "a-6O"OO'N

V -, - 

..A..- J.\ .J - I f c:::7; 

1J'''''1" / ~"0

~ ~

4

,

,1~w,!:- -

t55 "OO'N

Other Tonner bno/ton)

o O. 'j/ 

<- 1 .p 1

..J1-. 0 > 1 <- 10 2 

0 0 .3 

> 10 <- 25 > ,25 4

! ,

,

I

,,,,

I

,~50"OO'N

180·00'W 170·00'W 60 ·OO'W

Longitude

I ,

I,

,

,

,~,~,:tl ,

, 

h SDe~

., ther To er j A''('CO' i-65"OO'N

65 COO'N

60 COO'N

55 COO'N

50 COO'N

170·00'E

Figure 6.--continued.

" •• 0

"

180 ·OO'W

95

170 ·OO'W

Longitude

..

Alaska

Other Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25 4 > 25

160 ·OO'W

65 "OO'N

60 ·OO'N

55 "CO'N

50 "OO'N
96

. Alaska . "" <) I ~ .~... .a 

"V

/ I\1

c;o..

.', ,:;0 ~r50<>QO'N 

"U; 3 \"'" /

:g

...J

SS ~O'N~

-'. • r-L55<>QO'N

o 0.0

1

<- 1 

. •••...J1.2- t cj 2 > 1 <- 10 

:~l:ii 0

> 10 <- 25 3 4 > 25 .

!

I ~50<>QO'N

,I I

I ' , , , , I I I, , I

,, I I , ,

180000'W 1507 ·OO'W

Longitude j '/ '~'~'

,

, ,,

, ,

~55<>QO'N 

BvcatchAther sDe~ TOMer .~

50 <>QO'N

55 <>QO'N

50 ·OO'N

55 <>QO'N

Alaska

..

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 2!'>

4 .,.?f,

01.0.

00 00 J

0' 0 tOO 0 o~ e cj 0 o 0 "',' {J 0 oQ~~ 0 0 0 o '0 ,: 0

50 "CO'N

50 "CO'N

55 "CO'N

55 "CO'N

170°00'( 180·00'W 170·00'W

Longitude

150 °OO'W

Figure 6.--continued.
97

01.1

<;:;:.~ 0 OlIOS)

4J 0 0' 0 Q 0 0 0 1~ f 0' 0 o 0 ~ '0..~(J 0,'0'fJW!/IY'o 0 0 0 0 0

170000'E

60000'N

55000'N

50000'N

65000'N

Alaska

..

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

170000'W 160000'W

Longitude

180000'W

50 "CO'N

55 "CO'N

65 "CO'N

60 "CO'N

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

170000'E 180 °OO'W 170000'W

Longitude

..

Alosko

o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25 .'

160000'W

65°00'N

60 ·OO'N

55 ·OO'N

500aO'N

Figure 6.--Continued.
65 'OO'N

60 'OO'N

55 'OO'N

50 'OO'N

170·00'E

65 'OO'N

60 'OO'N

55 'OO'N

50 'OO'N

170·00'E

Figure 6.--Continued.

" •• 0

"

180 ·OO'W

"'." 0

,

180 ·OO'W

98

170·00'W

Longitude

170·00'W

Longitude

..

Alaska

Other Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

160 ·OO'W

..

Alaska

Other Tonner {no/ton} o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

160 ·OO'W

65 ·OO'N

60 ·OO'N

55000'N

50 ·OO'N

65000'N

60000'N

55 ·OO'N

50000'N
65 COO'N

60 COO'N

55 COO'N

50 COO'N

170°00'[ 180 °OO'W

99

170000'W

Longitude

..

Alaska

Other Tanner o o.b(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

160000'W

65000'N

60000'N

55000'N

50000'N

65 COO'N

60 COO'N

55 COO'N

50 COO'N

o

tI '," 0 a a 0 0 " 0 ~'i;OJib"••0~ e "0 0

Alaska

Other Tonner o o.b(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65°00'N

60000'N

55°00'N

50000'N

170°00'[

Figure 6.--continued.

180000'W 170000'W

Longitude

160 °OO'W
65 'GO'N

60 'GO'N

55 'GO'N

50 'GO'N

170·00'[

"' •• 0

,

180 ·OO'W

100

170·00'W

Longitude

..

Alaska

Other Tonner (no/ton) o 0.0 1 <- 1

2 > t <- 10

3 > 10 <- 25

4 > 25

160 ·OO'W

65 ·OO'N

60000'N

55 ·OO'N

50000'N

65 'GO'N

60 COO'N

55 COO'N

<;;:>. ~

..•

50 'GO'N

"'. 0

" "

..

Alaska

Other Tonner (no/ton) o 0.0 t <- t

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65000'N

60 ·OO'N

55000'N

50000'N

170·00'[

Figure 6.--continued.

180 ·OO'W 170·00'W

Longitude

160 ·OO'W
.

2 I ~ ~ Alaska 50COO'N-I \J / \, '.0 \.:..•., <::l ~~J' a.. "1-50"CO'N

o CI> -0

~

:g

..J ~ ~ ~"~t

55 COO'N ••..•. ~ I" .' [!I'f~' • 55 "CO'N

I .•

Other Tanner (no/ton)

o f' OM

~ p 1 <- 1

.•• '!..-P-I> • 2 > I <- 10

" ••••••••• 0 : ~j;ii 3 > 10 <- 25 .•. > 25

50 COO'N--1 : ' , , , I ' , , , I ' , , , I : ' , , , I ' , , , I l50 ·OO'N

170·00'E 180·00'W 170·00'W 150·00'W

Longitude

55COO'N-! I""Bvcatch SDe~ I" "~'~'t""j ' ther To er '7 '~'.,. I" "I" A "I ~55"CO'N

55 COO'N

50 COO'N

55 COO'N

50 COO'N

" •..• 0

....•.

101

Alaska

Other Tanner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

.•. > 25

55 ·OO'N

50 "CO'N

55 ·OO'N

50 "CO'N

170·00'E

Figure 6.--continued.

180 ·OO'W 170·00'W

Longitude

150·00'W
Table 17.-·Estlmated bycatch of Chlonoecetes balrdl (by number of crab) by U.S. domestic groundflsh vessels In the Bering Sea and Aleutian

Islands region by NPFMC area and gear type, 1990.

(Dashes indicate area not fished.)

Area X by gear

Total 52116740 5214523type 511

198,175 1,554,894 271232,701 9,382 166,730 76,681 25804,02 ,739792 86.8X 570,808

6,998 26,753 15,222 13 5,189 62,544 -. 215,150 96,004 2,294 133 12.0X

16612 93 350- - 1373,979 926 17420.1% 0

200181 9,507 44-- 20,003 5,0325,003 524 1.1% 7

205,539 1,792,026 287,355 300,650 9,537 178,614 166,754 5257 4,425 998 585,597

16.0X815 10.0X 0.5X 9.3% 02X 2.9 01X 32.7X

•..... a

tv
Table 18.--Estimated bycatch of "other" snow (Tanner) crabs* (by rn.rrber of crabs) by u.s. domestic groundfish vessels In the Bering Sea and

Aleutian Islands region by NPFMC area and gear type, 1990.

(Dashes indicate area not fished.)

Area X by gearTotal 5172125 5162 540 5134type 511

985,952 2,170,860 174,384 316,796 9,872 328,628 271,335 10,070 3,053 71.1X 0 70,770

2,989 75,328 471,68 615,827 60,342 138 1,394 --2,517 20.2X 888 363

12,148 1,224 148 10,238 236

-5.

50.4X 276 223

1,359 616 20,645 0-- 255,767 216,147 1809,28 7,053 398.4X

3,054,602 394,744 805,955 329,539 11,3105,574 10256,502 1,062,044 331,677 92,001

34.8% 129 26.4% 108X 0.4%0 10.9X 0.3%5X 3.0X

pillo hybrid snow (Tanner) crabs • •....

0

w
104

metric tons (t» and Chionocetes bairdi bycatch (in numbers) by target

fishery and NPFMC zone in the Bering Sea and Aleutians Islands region, 1990. C. bai rdi 

%Per%ofBycatch oftcatch oftotal

(numbers) groundfish within catchbycatch zone Zone

35,215.6 53.OX 399,483 22.3% 11.3 1

12,124.7 32.1% 220.025 12.3% 18.1 2

17.014.6 19.6% 69.346 3.9" 4.1 3

64.354.9 688.854 10.7 38.4%--

31.215.3 <0.1<0.1% <0.1%88 1

788.589.8 5.9" 2.3% 40.450 0.1 2

388.334.3 0.3% <0.1 1.6%5.637

1.208.139.4 <0.146. 175 2.6%--

17.479.8 1.3% 0.5% 0.6 9.733 181.997.3 6.6% 2.5% 45.073 0.5 2

19.350.2 1.6% 0.3% 0.3 5.745

118,827.3 60.551 0.5 3.4% --

31.635.3 44.4% 334.220 18.7:1: 10.6 1

100.800.4 52.2" 19.9" 357.310 3.5

46,717.9 75.9" 268.602 15.OX5.7

53.6% 179,153.6 --960.132 5.4

136.8 <0.1%8<0.1% 103 1

44.879.7 <0.1 0.2%11,455

5,940.9 0.1% <0.1% 0.1 39050.957.4 <0.11.948 0.1%--

542.1 9.712 0.5% 13 17.9 1

511.2 10.235 0.6% 1.5% 20.0

364.8 0.2 <0.1% <0.1% 56

20.003 1.418.1 14.1 1.1%--

0.1<0.1% 71.6 <0.1% 8 1

3,776.2 0.4% 0.2" 2.736 0.7

13,361.9 0.5% 0.1% 0.1 1.886

17.209.7 0.3 4.630 0.3% --

nfnfnfnf 1352.5 3.327 0.5% 0.2% 9.4

110.6 3.0 01% <0.1% 334

3.661 7.9 463.1 0.2" --

<0.1 323.6 <0.1% <0.1% 2 1

<0.1 487.6 <0.1% <0.1% 10

2,733.1 <0.1<0.1% <0.1%19

<0.13.544.3 31 <0.1%--nfnfnfnf 1

6.847.4 0.6% 0.2" 4.182 0.6

24,655.7 0.5% 0.1% 0.11,829

31.503.1 0.2 6.011 0.3% --

nfnfnfnf 1

nfnfnfnf 2

30,807.7 <0.1<0.1% <0.1%30

<0.1 30,807.730 <0.1%--

116,620.1 42.0% --753,349 6.5 1

1.040.366.8 38.2% -- 684,803 0.7549.391.7353,874 0.6 19.7:1: --

1,706,378.6 1.792.026 1.1
105

(in metric tons (t» and "other" snow (Tanner) crabs* bycatch

(in numbers) by target fishery and NPFHC zone in the Bering Sea and Aleutians Islands region, 1990. "Other" snow (Tanner) crabs

%Perof%Bycatch tofcatch oftotal(numbers) grOU'ldfish within catchbycatch zone Zone

35,215.6 30.4% 31,517 1.0% 0.9 112,124.7 953,095 42.1% 31.2% 78.6 2

17,014.6 338,739 49.2X 11.1% 19.9 31,323,351 64,354.9 20.6 43.3%--31,215.3 <0.1 <0.1% <0.1%212 1

788,589.8 18.2X 412,609 13.5%0.5 2

388,334.3 0.6% <0.1 0.1%3,805

1,208,139.4 416,626 <0.1 13.6%--

17,479.8 3.7% 0.1% 3,887 0.2 181,997.3 6.6% 148,297 4.9%1.8 219,350.2 8.2% 56,411 1.8%2.9

118,827.3 6.8% 208,595 -- 1.8

31,635.3 43.9% 45,585 1.5% 1.4 1100,800.4 21.6% 488,506 16.0%4.8

46,717.9 8.8% 60,298 2.0%1.3

179,153.6 19.5% 594,389 -- 3.3

136.8 <0.1% 13172 <0.1% 1

44,879.7 0.5% 0.4% 11,544 0.35,940.9 <0.1 <0.1% <0.1% 279

50,957.4 0.4% 11,995 --0.2

22,184 542.1 21.4% 40.9 0.7% 1

223,816 511.2 7.3% 437.8 9.9%

364.8 9,767 0.4% 26.8 0.3%

255,767 8.4% 1,418.1 180.4 --

<0.1% 71.6 148 2.1<0.1% 1

3,776.2 20,310 0.9% 0.7%5.4

13,361.9 25,377 31.3% 7.1% 16.1

235,835 7.7% 17,209.7 --13.7

nfnfnfnf 1

352.5 <0.1% 1.4 492 <0.1%

110.6 5.3 01% <0.1% 584

<0.1% 1,076 --2.3463.1

323.6 <0.1% 0.2<0.1% 54 1

487.6 <0.1% 0.1<0.1% 48

2,733.1 <0.1<0.1% <0.1%21

<0.1 <0.1% 3,544.3 --123nfnfnfnf 1

6,847.4 0.2% 4,026 0.1% 0.6

24,655.7 0.4% 0.1% 2,808 0.1

31,503.1 6,834 0.2 0.2X --

nfnfnfnf 1nfnfnfnf 2

30,807.7 <0.1<0.1% <0.1%11

<0.1 <0.1% 30,807.7 -- 11

116,620.1 3.4% 103,759 -- 0.9 1

1,040,366.8 74.1% 2,262,743 -- 2.2

549,391.7 688,100 1.3 22.5% --1,706,378.6 3,054,602 1.8

and£.. bairdiX£. opHio hybrid crabs.

nf = No fishing.
106

examined for condition by observers in U.S. domestic groundflsh catches

In the Bering Sea and Aleutian Islands region by species and gear type, 1990.

Excellent

DeadPoorI'IUItIers "I'IUItIersGear type

30.5"2OX 37.5" 31,0336412 29,63 Trawl

1.4%397.3" 10,061 135146

21.7X 72".2" 1123687

30.8X 173% 51.9" 22,713 38,328 12,774 Trawl

2.6% 1196.3% 24,332 661268

25.OX 17.7X 57.2X 1,474 644 457

8.OX 15.6% 764 18289193 TrawlO.OX 00 0

58.1% 355 6.5% 118213.6% 57X 80.7X 5,334 897375 Trawl

O.OX 00% 0 00

26.6X 444% 29.OX 329 21597 Trawl

98.4% 1.6% 00 0621 Pot21.9" 18.8X 59.4X 7196
107

Table 22.--Biological data on the bycatch of snow (Tanner) crabs

in the u.s. domestic groundfish fisheries in the Bering

Sea and Aleutian Islands region, 1990.

Chionoecetes 60.0%

oDilio

Male

Female

Species

Percent

by species Sex

Sex

composition

59.4%

40.6%

Average

weight (kg)

0.36

0.18

Average

width (mm)

89.3

63.1

~. bairdi 37.0%

~. anaulatus 2.2%

~. bairdiX 0.6%

C. oDilio hybrid

~. tanneri 0.2%

Male

Female

Male

Female

Male

Female

Male

Female

60.7%

39.3%

62.3%

37.7%

68.0%

32.0%

64.5%

35.5%

0.36

0.16

0.27

0.12

0.34

0.13

0.37

0.23

86.5

68.1

97.3

74.2

89.8

68.0

115.0

92.7
Table 23.--Honthly bycatch rates (number per metric ton of catch) and average weight (kg) of red king crab taken In domestic groundflsh fisheries In the

Bering Sea and Aleutian Islands region by gear type, target fishery, and NPFMC area, 1990.

Area 511

Area Area 5401621 5713522 514

Avg. Avg. Rate

wt. wt.

Jan.

1.62 --2.495 -- 1.148 3.06-- -- 5.126 ns ns 3.335 0.000 2.16 000 1.62

1.90 0.974 -- 0.000 --

0.00 -- -- 1.136 ns2.23 ns ns0.000 0.00ns

1.53 --0.316 -- 0.000 0.00 - - -- 0.241 1.00 -- -- 0.000 0.000 0.00

0.000571 2.220 00 0.038 -- ------- 0.000 ns0.00ns

7.457 2.32 1.79 --0.138 ----- 0.000 6.827 0000 0.00 1.81

-- --.---------- 0.000 0.00 n n

Aug.

-- ---- 1.084 0.000 0.032 0.44 0.00 1.74 -- -- 0.000---- ---- 0.026 0.004 2.26 2.53 -- ------ 0.000 0.00-- 0.072 ----n 0.011 1.40 1.72 -- ------ 0.000 0.00 -- --- I-'

0 -- ---- 0.090 0.024 2.26 1.99 -- ------------ 00

-- -------- 0.000 0.00

0.217 5179.758 0074.17 0000 0.00 0.86 100 2.8 000 1.628 1.3 0.963

Jan.

0.00 0.000 -- ----.---- 1.395 ns ns 0.000 2.04 00 -- -.---- ns ns

0.00 0.000 -- -- 0.000-- ----0.0001.62 --0.201 -- <0.0011.80 -- 0.000 0.000 0.00

1.77 -

0.022 - -- 0.000 0.00 -- ---- 0.000 0.000 0.00 -- -- 0.000 0.00

2.49 --0.009 -- 0.000 0.00

---- 0.828 0.000 0.00 2.28 000

-- --..----- 0.000 0.00 -- 0.000 -----

0.000 0.00

-- ---- 0.000 0.00 -- 0.000

-- ---- 0.000 0.00 -- ---- 0.000 -- -- 0.000 0.00-- ---- 0.000 0.00 -- ---- 0.000 0.000 0.00

--.-..- -- --n ---- 0.000 0.00 -- --

0.00

-- ------- 0.000 0.00-- 0.000 ----n-- 0.00

1.64 --0.115 -- <0.0011.80 0.000 0.315000 0.00 216
Table 23.--Continued.

Area 511

Area 5401612 52513 514

Avg. Rate

wt.

Jan.

2.51 0.083 -- --- - 0.000 0.398000 2.31 000 -- ---- 1.898 0.51

2.45 0.010 -- 0.000 --0.00 -- -- 0.001 0.02 ns0.201ns -- ---- 1.694 0.56

2.26 --0.032 -- 0.0005 0.00 -- 1.31 -- <0.001 --0.03100 0.8100 0.55

2.49 --0.014 -- 0.000 0.00 -- -- <0.001 0.0060 0.8600 2.50

12.140 000 1.58 000 1.13 --0.038 -- 0.000 0.0001 291 1.1650

-- ------ 0.000 0.00 --- -- 0.000 ns0.00 ns-- -- 0.013 0.25-- ------ 0.010 0.14 -- 0.000 --0.01401 0.00 3.39 000 1.11

-- - --- 0.000 0.00 -- -- 0.001 0.11 0.002 --0.00026 0.00 13 1.10-- ----- 0.000 0.00 -- --

0.00011 1.319

-- ----- 0.000 0.00 - - -- -- 0.000 ns0.00 ns-- -- <0.0013.60I-' 

-- ------ 0.245 2.52 -- 0.005 ----

2.230 

4.30 00 0.001 \D

-- ------- --

12.140 0.001 2.5211 1.3 0.036 -- -- 0.003 <0.001 2869 0.00011 0.66 1.0316 00 0.9 155

Jan.

0.00 0.000 -- ----- 0.000 0.00 -- ------ nsns

0.00 0.000 -- -- 0.000-- ----

2.61 --0.006 -- 0.000 0.00 -- 0.000

2.13 0.001 -- -- 0.000 0.00 0.000 ns--ns-- ns0.000 0.00ns

0.000..0.000 -- 0.000-- --

0.0000.000 -- -- 0.000-- --0.0000.000 -- -- 0.000 0.000 -- - - 0.000 0.000

--0.000 -- 0.000 0.000 -- - - 0.000 0.000

--0.000 -- 0.000-- --

<0.0010 0.80

--0.000 0.000 -. ---

0.000

-- 0.000 ------

0.00 -- 0.000

- - --------- 0.000 0.000 0.00

0.000 <0.001 ns0.000 2.31 000 0.80 0.005 ns
Table 23.--Continued.

Area 511

Area 540 5167212 51345

Avg. Avg. Rate

wt. wt. wt.

Jan.

0.00 0.000 -- ---- 0.000 0.00 -- ------ ns ns0.00 --0.000 --------o. 0.000 0.00

0.000 -- - - 0.000 -- -- --

ns ns

0.000 -- -- 0.000- - --

ns--ns -- 0.000 0.000 0.00

ns ns 0.000 ----0.00 -- --ns--ns -- 0.000 0.000 0.00 -- --

ns ns

-- ------ 0.000 0.00 -- --

0.000 -- --

ns ns

0.85 0.025 -- ------- 0.000 0.00 -- o.0.000

0.000 -- -- 0.000-- --

0.0000.000 -- -- 0.000 ----0.0000.000 -- 0.000 --

0.05200 1.76 -- n0.000 0.000 -- -- 0.000

0.00 0.000 -- -- 0.000 0.03400 2.59 -- -- 0.000 0.000 -- ---- •...

•...

- - ---- 0.000 0.00 -- ---- ns ns0

0.85 0.002 -- -- 0.000 0.05100 0.00 181 -- -- 0.000 0.000 0.00

Jan.

-- ---------- ns--ns --o.nsns

-- ---- ns--ns --ns --ns

-- ------ 0.000 0.00 -- -- 0.000 -- 0.00-- ---- 0.000 0.00-- --o.---- 0.000 0.00 -- --

0.000 -- -- 0.000

ns ns --------- 0.000 0.00 -- --

0.000

nsns ns ------ 0.000 0.000 ns0.000 0.00ns

-- -------- 0.000 0.00 -- --

0.000 -- -- 0.000 0.00

- - ----o. --- 0.000 0.00

0.000 ------ -- 0.00

-- -------- 0.000 0.000 0.00-- ns

n---------ns

ns ns -------- 0.000 0.000 ns0.000 0.00ns
Table 23.--Contlnued.

Area 511

Area 5224017 5215612 534

Avg. Rate

wt.

Jan.

-- -eou--u--u 0.000 0.000 0.00

-- --

u -- ns--ns --u -u-- 0.000 0.000 0.00

-- -- u--u ----u - 0.000 0.000 0.00-- -. --------u 0.000 0.00 -- u

0.000

-- --------- 0.000 0.00 -- u

0.000

--0.000 u---- 0.000 0.000 0.00- - ------u 0.000 0.00 -- u

0.000

ns ns 0.000 --- -

0.00 u-- u0.0005 0.50

-- 0.000 ----0.00 - - -- -- u

0.000

-- u -- nsu ns -- 0.000 0.00 -- --

0.000

u

0.000 -- 0.000-- -- -- u0.000I-'0.000 0.000I-'

u --u - -u - -- I-'

0.000 0.00 --0.000 0.000 --0.0001 0.50

Jan.

-- --eou --u ns--u ns --u -- nsns-- ----uu ----un nsns

-- ---.--

u_.- 0.000 0.00 -- .-uu------u 0.000 0.00

-- --

u----U 0.000 0.00

ns ns 0.000 ------- -- 0.00 u U -- --u 0.000 0.00

- - --u

0------- 0.000 0.00 u u

0.000

-- u----.-- 0.000 0.000 0.00 .-- u0.000

-- 0.000 -----n--u

0.00 -- --

0.000

-- U------u nsu ns -- 0.000 0.00 u u

nsns

-- 0.000 --u --. ns0.00ns 0.000 u--0.00-- .--.---u

U--u --U--uu 0.000 0.00

-- --eou----- ns ns

ns 0.000 --u----

0.000 0.00 u
Table 23.--Continued.

Area 511

Rate Avg.

wt.

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Pot vessels (all targets)

Jan.

Mar. Apr. May Feb.

-- ----n ---.---- ns ns-- ---------- 0.000 0.00

0.000137.849 1.06 -- ---- 0.000 0.00 -- --0.000

--0.000 -- 0.000- - -- -- --

0.000

0.000 -- -- 0.000-- 16.404 0.000 1.48

245.074 1.53 -- -- 0.000 0.00 -- nsnsns I-' 

-- ------- ns--ns ----n------I-'- - -------------I\.)

0.000 0.00 1.53 0.766137.849 1.06 -- -- 0.000 0.000 nsns0.822000 1.48nsns

ns = Fishing occurred but no sampling by observers.
Table 24.--Monthly bycatch rates (nunber per metric ton of catch) and average weight (kg) of "other" king crabs· taken in domestic grcx.nclflshfisheries

In the Bering Sea and Aleutian Islands region by gear type, target fishery, and NPFMC area, 1990.

Area 511

Area Area 5401272 5621145 53

Avg. Rate Rate

wt. wt.

Jan.

0.40 ..0.003 -- 0.147 0.60 0.000 ns0.00 ns-- 0.00021 0.80

0.000 .. -- 0.000-- -- 0.000 ns0.000 0.00 ns ns ns

0.000 -- -- 0.000--- - n- --

0.00

0.000 --.000 n -- 0.000 ns0.00ns

0.041 0.88 --0.000 ---- 0.000 0.000 0.00

-- 0.000 n-----eo----n

0.00 -- eo

Aug.

-- n- -- 0.254 0.000 121 2.61 0005 n -- 0.154 0.64 -- - - 0.031 2.20n n---- 0.084 0.006 2.6106 eo ----- 51 .712 0.98 -- - - ns ns I-' -- n---- 0.510 0.004 1.7392 -- 0.000 n--n

0.00 -- - - 0.005 2.50 .. -- I-'

-- --- --- 0.012 0.035 0.21 27 n n--n w-- n-eo-----n - 0.000 0.00

0.03107 0.72600 0.332000 0.4 2.40 0088 2.4 00082.96 06580 0.40 <0.001

Jan.

0.00 --0.000 ----

n 0.000 nsns 0.000 0.00 -- eo---- nsns

0.000.000 -- -- 0.000298-- 0.34

.. 0.013 0.000 0.6500

--0.000 -- 0.001 1.11 0.000-- 0.000 0.00

n 0.000 -- 0.000-- ------ 0.000 0.000 0.00 -- n 0.000 0.00--0.000 -- 0.000-- ---- 0.000 0.0050 0.00 15

.. -- ---- 0.000 0.00 -- ------ 0.000 0.000 0.00 0.00

-- ------ 0.000 0.00 -- ..

0.00035 2.57

-- ---- 0.000 0.00 -- 0.130 --

0.33

-- 0.000 0.000 0.00 -- -- 0.070 2.53

-- n---- 0.000 0.00 -- --..-- 0.000 0.0005 0.00 1 0.00-- -----..----n 0.000 0.00 .. -- 2.365 0.57

0.345 --n---------- .. 0.49

Year

0.00 -0.000 - -- 0.00155 0.33 1.11 -- <0.001336 0.000 0.006 0.00 0.65
Table 24.--Continued.

Area 511

Area Area 540127 562114 535

Avg. Rate

wt. wt.

Jan.

0.000.000 oo 0.000 ------- 0.00067 0.0021 -- oooo oo 0.000 0.00

0.000 -- -- 0.000 - - 0.055 <0.001 ns0.30 1.29 ns -- oo00 -- 0.000 0.00

--0.000 -- 0.000 -- 0.016 0.87 oo oo 0.001 0.000873 0.00 126

--0.000 -- <0.0010.80 -- -- 0.021 1.54 oo -- <0.001 0.000115 0.006 0.5300 1.6 0.11

0.0001 2.00 --0.000 -- 0.009 0.010 0.04200 0.0059 16.0873

-- ---- 0.000 0.00 oo -- 0.060 0.46 -- ------ 0.001 1.48 -- oo 0.022 0.92

-- ------oo 0.218 0.77 0.000-- 0.000363 0.127 0.00 149

-- ----- 0.000 0.00 oo -- 1.011 0.66 -- oo 0.970 0.037890 0.211 0.8541 110.03-- ----oo-----oo 0.088 0.99 -- oo 0.954 0.019456 0.061 0.83 168.3770

-- -- ---- 0.123 2.75 -- -- 0.396 0.82

---- 0.043 0.012584 0.73 1.4380I-' 

-- ---- 0.392 1.35 -- --oo-------oo-oo 0.066 1.27I-'

~ oo --oo--oo 0.000 0.00 -- --oo oo 0.094 0.78

0.0002 0.00 149 oo0.000 -- 0.165 0.060241 0.01241 0.019 0.94 0.9440 13.37

Jan.

0.00 --0.000 --oo--- 0.000 0.00 -- oooo oo ns ns0.000.000 -- -- 0.000 --

--0.000 -- 0.000 --

0.000

--0.000 -- 0.000 -- 0.000 ns--ns 0.000 0.00 -- --

ns ns0.000 0.00 -ns0.000 - -- 0.00000 --

0.000

--0.000 -- 0.000 -- -- --

0.000

0.000 -- -- 0.000 0.000 -- -- 0.000 0.000

0.000 -- -- 0.003 0.000 2.00 0 oo -- 0.000 0.0002 1.62

--0.000 -- 0.000 -- <0.0010.50 oo --

0.000 0.00 0.75

--0.000 -- 0.000 --

<0.0010 1.60

-- oo-------- 0.000 0.00 -- --

0.000

-- ------oo 0.000 0.000 0.00

<0.001 <0.001 ns0.0005 0.00 1.62 000 0.7550 20 ns0.000
Table 24.--Continued.

Area 511

Area 5401622 5371145

Avg. Rate

wt.

Jan.

0.000.000 -- ----- 0.000 0.00 -- -- -- -- ns ns

0.000.000 -- 0.000 -------

0.00

0.000 -- -- 0.000-- --

ns ns

0.000 -- -- 0.000-- -- 0.000 ns0.000 --0.00 ns

ns ns 0.000 ---- ns0.00 ns-- ---- 0.000 0.000 0.00 -- --nsns

-- -------- 0.000 0.00 -- --

0.000 -- --

ns ns

0.00 --0.000 ---- 0.000 0.00 -- --0.002 1.25

--0.000 - - 0.000-- -- 0.011 1.20 -- - - 0.000 0.000 0.00

0.000 -- - - 0.000-- -- - --0.0000.000 -- -- 0.000 0.0009 1.1 -- -- 0.000 0.001 1.00 -- -- 0.000 0.000.000 -- - - 0.000 0.000 -- -- 0.000 0.000 -- ----I-'

I-'

-- --- --..-- 0.000 0.00 -- -- ---- nsU1ns

0.000.000 -- -- 0.000 0.0018 1.102 -- -- 0.000 <0.001 0.000 0.00 1.20

Jan.

-- --..--- ns-- ns ----nsns

-- --..-- ns-- ns - - ns--nsns -- ns

-- ------.. 0.184 0.50 0.000-- 0.00 -- ---- 0.000 0.00-- -------- 0.000 0.00- - --------- 0.057 2.15 -- .. 0.000 0.000 0.00 eo -- 0.045 0.34

ns ns ------ 0.048 1.79 0.014-- 0.02400 0.60490nsns ns ------ 0.000 0.011328 ns0.000 0.7500 0. 242ns

-- ---- 0.000 0.00 -- - -

0.000 -- -- 0.216 1.37

-- --------- 0.000 0.00-- ------eo---- 0.240 1.75-- --------- 0.000 0.51,0 0.800-- --------- nsns

ns ns ------ 0.093 0.03 ns0.076 0.000 0.00 17 2.26 141ns
Table 24.--Continued.

Area 511

Area Area 54D 511226 51134 515

Avg. Rate

wt.

Jan.

-- -------- 0.000 0.000 0.00

-- ---- ns--ns ---- 0.000 0.000 0.00

-- ------- 0.000 0.000 O.OD 0.00-- ---- 0.000 0.00 -- --

0.000

-- 0.000 ------- 0.00 -- --

0.000 O.OD 000 .0.00 0.0000.000 -- ------ 0.079 0.000626 0.500 1.20

-- ------- 0.000 0.00 -- --0.000 0.01003 0.00 253 1.10

ns ns 0.000 ----0.00 -- --

0.0110 2.6015

-- 0.000 ----0.00 -- --

0.00016 0.000 0.00 1.16

-- ---- 0.000 ns--ns 0.00 -- --

0.0060 1.70~0.00 --0.000 -- 0.000-- --

0.0004 0.002 0.00 1.08~

0'1

0.00 --0.000 -- 0.000-- 0.00 -- --0.000

--0.000 -- 0.013 0.00490 0.001 0.9600 1.29213

Jan.

-- ------- ns--ns ---- ns ns

-- ----------n ns ns

-- ------ 0.000 0.00 -- ------ 1.744 0.70-- ------- 0.000 0.00

ns ns ------ 0.000 0.00 -- ---- 0.000 0.00

-- ---- 0.000 0.00 -- --

0.381000 0.90

-- ------ 0.000 0.00 -- --

0.000 -- -- 0.000

0.000 ------ -- 0.00 -- --

0.000

0.000 --ns

----------ns -- 0.00

-- -------- 0.000 ns0.00ns 0.000 ----0.00

13.115 ---------n-- -- 2.10

-- ------ nsns

ns 0.000 -------

0.00 -- --

0.000429 0.004 1.15 050
Table 24.--Contlnued.

Area 511

Rate Avg.

wt.

Area 512

Rate Avg.

wt.

Area 513

Rate Avg.

wt.

Area 514

Rate Avg.

wt.

Area 515

Rate Avg.

wt.

Area 516

Rate Avg.

wt.

Area 517

Rate Avg.

wt.

Area 521

Rate Avg.

wt.

Area 522

Rate Avg.

wt.

Area 540

Rate Avg.

wt.

Pot vessels (all targets)

Jan.

Mar. Apr. May July Feb. June

0.000 0.00 0.000.000

-- -- 0.000

--0.000 -- 0.000

--0.000 -- 0.000

Dec. Year

0.000 0.00.000

*specles Include golden, blue, and couesi king crabs.

Dashes Indicate areas not fished.

ns = Area fished but no sa~llng by observers.
65 "IJO'N

60 "IJO'N

55 "CO'N

50 "OO'N

65 "OO'N

60 "OO'N

55 "OO'N

50 "OO'N

170000'E

170000'E

"" 0

"

180000'W

tI '. 0

"

180000'W

118

170000'W

Longitude

170000'W

Longitude

..

Alaska

Red King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- :>

.3 >:> <- 10

4 > 10

160000'W

..

Alaska

Red King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- :>

.3 >:> <- 10

4 > 10

160 °OO'W

65000'N

60000'N

55000'N

50000'N

65000'N

60000'N

55000'N

50000'N

Figure 7.-Average incidence (no./t) of red king crab in the

u.s. domestic fisheries by quarter, target fishery,

gear type, and 112° latitude by 112° longitude areas

in the Bering Sea-Aleutians Islands region, 1990.
65 COO'N

60 COO'N

55 COO'N

c;:;:.._

..

50 COO'N

65 COO'N

60 COO'N

55 COO'N

c;:;:.._

..

50 COO'N

Figure 7.--continued.

;I -. 0

"

180000'W

180000'W

119

170000'W

Longitude

170000'W

Longitude

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160000'W

..

Alaska

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

1 60 °OO'W

65000'N

60000'N

55000'N

50000'N

65000'N

60000'N

55000'N

50000'N
120

.

Alaska

60"CO'N-I '\J / \ . I ~ Y.--A a.. --1-60000'N

"

"

~

C

-J ~ ~ ~ ~ •• l '0 1 ••

55 "OO'N I ....'1 1 . [!I',.~ 55 OOO'N

100 ~ 0·· "-

Red Kinq Crab (no/ton)

'Q. rr 0 0.0

.• ~ ." 1 <- 1

.•. ..J.-P 2 > 1 <- 5

., ",0 : ~J:;ii ;5 > 5 <- 10 ~ 4 > 10

5o-o0'Ni : ' , , , , ' , , , , ' , , , , ' , , , : ' , , , , ' , , , I [50'00'N

170·00'E 180 ·OO'W 170 ·OO'W 160 ·OO'W

Longitude

65 "CO'N-I Rv"nt"h "n ••~ ~ ••d Kinotcrab ~'7'~"""""" ••• ~ ~65·00'N

50000'N

55000'N

60000'N

65 "CO'N

Alaska

..

Red Kinq Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

;5 > 5 <- 10

4 > 10

170·00'W

Longitude

., '. 0

"

50 "OO'N

55 "OO'N

60 "CO'N

65 "CO'N

Figure 7.--continued.
121

55 <{)O'N

50 <{)O'N

55 <{)O'N

50 <{)O'N

<;;:. -

.. 0'0 ~" 0 0 p

" 0,"~ ~~---. 0 0 0

..

Alaska

Red Kin9 Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55000'N

50000'N

55 "OO'N

50 "OO'N

170·00'E 180 ·OO'W 170·00'W

Longitude

150 ·OO'W

55 <{)O'N

50 <{)O'N

55 "GO'N

50 "GO' N

<;;:. -

••0 ~". 0

"

o p

~eo"

~~~O 0 0 0 0 ""

..

Alaska

Red Kin9 Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55000'N

50000'N

55 ·OO'N

50 "OO'N

170·00'[ 180 ·OO'W 170·00'W

Longitude

150·00'W

Figure 7.--continued.
122

. Alaska

~ <)~ ~ 't6O""O'N : .. --0"' ..- _. _..

i' • \. ~ c;:::r;

~~A -=- 

"t:J

~0

...J

55 <QO'N-i

, - . "'~ _ I Vel ~ ~,. •••

t55OOO'N

Red Kin9 Crab (no/ton)

o 0.0 

.J <- 1 

1

t;>~' 0

> 2 1 <- 5 

:\):..1 0

> ~510<- 10 34

, ~

,,

I

,

,.,

~ 50 "OO'N

180000'W 170000'W 160·00'W

Longitude

I ,

I,.

Bvcatch soe~ ':?J'~'~ . ,

•• ed Kino rob_j A'

X-.•••- I-65 OOO'N

55°00'N

50 "OO'N

60000'N

65000'N

.

Alaska

Red Kin9 Crab (no/ton) o 0.0 1 <- I

2 > 1 <- 5

3 > 5 <- 10

4 > 10

01.0.

00 00 J

O'0 0 0 0 0 0..J1.J}..' ($ I o I ~ ',' ~ 0 o(J\):..IV 0 0 0 o "'0/ 0

65 <QO'N

55 <QO'N

60 <QO'N

50 <QO'N

170°00'[ 180000'W 170000'W

Longitude

160000'W

Figure 7.--continued.
123

1

o 0100,1

Q 0 0 1 O~ t cJ 0

~.~~ f 0O~O~W!Yo 0 1 0 0 0

o 0 0

O'0 Q 0 1...J9,J... e cJ 0 o ~ .~~Q ~o~W!VO 0 0 0 0

65 COO'N

60 COO'N

55 COO'N

50 COO'N

65 COO'N

60 COO'N

55 COO'N

50 COO'N

~~

•• 1 l' 1 1 1

180 ·OO'W

180 ·OO'W

1 70 ·OO'W

Longitude

170·00'W

Longitude

'.

Alaska

Red Kinq Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

1 60 ·OO'W

..

Alaska

Red Kinq Crob (no/ton) o 0.0 t <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160·00'W

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

65 "CO'N

60 "CO'N

55 ·OO'N

50 "CO'N

Figure 7.--continued.
124

Alaska

" ...., " .......... ~ <)~i c:?4"0<JO'N

;.." . - .. -M - . -- 

"

~

:g

....J

55 "OO'N--I

I -

~ ~ ~I~'w"", I

r 55 ·OO'N

RedKing Crab (no/ton)

<;>~

'r

0.0 0

1

<- 1 

~•.-P-.• > 1 <- 5 2 

..••.

> 5:~<- 10 3> 10 ••

~50"CO'N

,,,

I

,,,,

180·00'W 1607 ·OO'W

longitude

I ,

,I

Bvcatch sDe~ '~'-L'~' ,

<6 ed Kina rab-'

/I" '("" •.. ~ J- 65 ·OO'N

50 "CO'N

55 "CO'N

60 ·OO'N

65 "CO'N

Alaska

'.

RedKing Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

•• > 10

tI·. 0

..••.

60 "OO'N

65 "OO'N

50 "OO'N

55 "OO'N

CI>

"0

~

:;:;

o

....J

170·00'E 180 ·OO'W 170·00'W

longitude

160 ·OO'W

Figure 7.--continued.
125

. \.. AlaskaI ~ 

V / \. ':' ':' ':'.':' q-- . .a .~,.- ....

0 ,s; ~J-60<>Q0'N 

I \""",,00000, I/ 

"0

~15

-J

55 'l)O'N1

. , "'-::: ::: :::1 ~....,.. N,.I ...

t55 <>QO'N

Red Kinq Crab (no/ton)

<i:). ~

or

o 0.0

1

<- 1 

j)r" .J-" > 2 1 <- 5 

'-: \):..4 > 5 <- 10 .3 

> 10 4

~50<>QO'N

,,

I

,

I

,

I

,,

180'00'W 170'00'W 160 'OO'W

Longitude

I ,

,I,,,

'~'~'~' , Bvcatch sDe~

" ed Kina rob_:) A ~ •.. - I-65 <>QO'N

50 <>QO'N

55 'OO'N

60 <>QO' N

65 'OO'N

Alaska

..

Red Kinq Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

170'00'W

Longitude

o 0

"',' 0 0 0 0 0 0 p '- 0 ~"i;O!1r"0~ e 0' 0 '0 0

60 COO'N

65 COO'N

55 'l)O'N

50 'l)O'N

Figure 7.--continued.
65 "GO'N

60 "GO'N

55 "GO'N

50 "GO'N

~ •• 0

" "

126

.

Alaska

Red King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

;3 > 5 <- 10

4 > 10

65 -aO'N

60-a0'N

55·00'N

50 -aO'N

170·00'[ 180 ·OO'W 170 ·OO'W

Longitude

160·00'W

65 "GO'N

60 "GO'N

'"

":>

-

C~

55 "GO'N

50 "GO'N

,I .• 0

" "

.

Alaska

Red King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

;3 > 5 <- 10

4 > 10

65 -aO'N

60 -aO'N

55 -aO'N

50 ·OO'N

170·00'[

Figure 7.--continued.

180 ·OO'W 170·00'W

Longitude

160·00'W
65 "CO'N

60 "CO'N

55 "CO'N

50 'UO'N

170·00'[

65 "CO'N

60 "CO'N

'"

"U

E

"0-'

55 'UO'N

50 'UO'N

, 70·00'[

Figure .7.--Continued.

tI •..• 0

"

, 80 ·OO'W

180·00'W

127

, 70 ·OO'W

Longitude

170·00'W

Longitude

Alaska

Red King Crab (no/ton) o 0.0

1 <-.1

2 :> 1.<- 5

3 >!5 <- 10

4 > 10

, 60 ·OO'W

..

Alaska

Red King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160 ·OO'W

65 "CO'N

60 "OO'N

55 "OO'N

50 "OO'N

65 "OO'N

60 "OO'N

55 "OO'N

50 "OO'N
Q)

":>

-

:;:;

o

-J

55 "OO'N

50 "OO'N

55 "OO'N

50 'OO'N

55 "OO'N

50 "OO'N

55 'OO'N

50 'OO'N

"".' ° "

128

170 °OO'W

Longitude

170000'W

Longitude

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

..

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

55000'N

50000'N

55000'N

50000'N

55000'N

50000'N

55000'N

50000'N

Figure 8.-Average incidence (no./t) of "other" king crab in the

U.S. domestic fisheries by quarter, target fishery,

gear type, and 112° latitude by 112° longitude areas

in the Bering Sea-Aleutians Islands region, 1990.
170·00'E

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

65 <QO'N

60 <QO'N

55 <QO'N

50 'DO'N

"".' 0

"

180 ·OO'W

129

170·00'W

Longitude

..

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160 ·OO'W

..

Alaska

Other Kingo Crab 0.0 (no/ton) 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50000'N

65000'N

60000'N

55000'N

50000'N

170·00'E

Figure 8.--continued.

180 ·OO'W 170·00'W

Longitude

160 ·OO'W
65 COO'N

60 COO'N

55 COO'N

50 COO'N

65 COO'N

60 COO'N

55 COO'N

50 COO'N

Figure 8.--Continued.

130

'70·00'W

Longitude

'70·00'W

Longitude

..

Alaska

Other King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

.

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

1 60 ·OO'W

65 "OO'N

60 "OO'N

55 "OO'N

50 "OO'N

65"OO'N

60 "OO'N

55 "OO'N

50 "OO'N
131

Alaska

\",.. I ~ o 0 <J .~... .a 

\J / \, 0"\0 0"",_

r J-, 60 OOO'N ?0-

000 

~ ""/~ g 0\

.;-0

...J

55 COO'Nj 

"LJ~k:- ~

• ~~55"OO'N

K -'"; \ ,~-~ . "

Other Kinq Crab (no/ton)

o 0.0 ,,-

<- 1 ." 1

..Ji-." 0

> 1 <- 5 2 

1 1 3

> 5 <- 10 

~ 

> 10

OO'N~ ! ,

,

I

,

I

,

I

,

~50000'N

180'00'W 170'00'W 60 'OO'W

Longitude

, ,

,I

Bvcatch '~'-L'!;' , , sDe~

" ther Ki "Cra~ A' '("" •.. - I- 65 OOO'N

50000'N

55000'N

60000'N

65000'N

.

Alaska

160 'OO'W

Other Kinq Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 ~ > 10

170 'OO'W

Longitude

4

'!J'ir..4~0-fL- 012to" "'," 0

"

170'00'E

50 COO'N

60 COO'N

55 COO'N

65 COO'N

Figure 8.--continued.
132

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

"" 0

" "

170·00'W

Longitude

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65 -aO'N

60 -aO'N

55 -aO'N

50 ·OO'N

o 1 1 2

0' 1 0 1 2 2 1~ t 2 0 "'.' (j 1 '1~i» 0 0

1 ""0 -- 0

65 "CO'N

60 "CO' N

55 "CO'N

50 "CO'N

180 ·OO'W 170·00'W

Longitude

..

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65 -aO'N

60 -aO'N

55 -aO'N

50-aO'N

Figure 8.--continued.
133

65 'DO'N

60 'DO'N

55 'DO'N

~- 0 222

•• 1 I" 1 ~ 2 .3 1 ••.•2..:P.J-f.

1 1 'T '-l.'1f' 2,'2 1 :1~b"2 1 1 1 1

50 'DO'N

..

Alaska

Other King Crab (no/ton) o 0.0

1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65-aO'N

60 -aO'N

55 -aO'N

50 -aO'N

170·00'E 180 ·OO'W 170 ·OO'W

Longitude

160 ·OO'W

65 'DO'N

60 'DO'N

55 'DO'N

50 'DO'N

1'1 Q 0

O'T"~

1 o

:O~~:~' "0 1 1 1

.

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65 -aO'N

60 -aO'N

55 -aO'N

50 ·OO'N

170·00'E 180 ·OO'W 170·00'W

Longitude

160 ·OO'W

Figure 8.--continued.
134

.

50 "OO'NfV ~ ' .. ' .-J'"'1~-. .-.r' Alaska ~ r~ 50 OOO'N

,...--- ".. ~ .,$f:. (....-A ~ ,

• ~-.;. ('\/?-) - II>

"

~

"0

....J

55 "00'N1 I I - Ift ~.~ 0ft 0 0'..d''''•••• . Wf!:- [55000'N

I <> rr 0,"" "03 "6:~'0'/"0'

•• ~ ." 1 <- 1

.••.• -11-1> 2 > 1 <- 5

,I ",0 : 'ir..ll" 3 > 5 <_ 10

50"O'N~ ~ •••• , •••• , : ••• , • , , , , ' , , , , ' , " ,>, '~ , , , , ~50"O'N

170·00'[ 180 ·OO'W 170 ·OO'W 150 ·OO'W

Longitude

55"OO'N~ 'B~c~tc~ ~Dle~' 'Jot'~~ii~c~a~A' '(""•..•• _ ~55000'N

50 ·OO'N

55000'N

50000'N

55000'N

Alaska

150 ·OO'W

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

170 ·OO'W

Longitude

180 ·OO'W

50 "OO'N

50 "OO'N

55 "OO'N

55 "OO'N

Figure 8.--continued.
135

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

tI ',' 0

"

170·00'W

Longitude

..

Alaska

Other King Crab (no/ton) o 0.0

1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1

4 > 1

65COO'N

60 COO'N

55 COO'N

50COO'N

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

o 0

tI '. 0 0 0 0 0 p '" 0 :O'i)OrV~ e d 0 .'0 0

Alaska

Other King Crab (no/ton) o 0.0 1 <- 0.1

2 > 0.1 <- 0.5

3 > 0.5 <- 1

4 > 1

65 COO'N

55 COO'N

50 ·OO'N

170·00'E

Figure 8.--Continued.

180 ·OO'W 170 ·OO'W

Longitude

1 60 ·OO'W
65 "OO'N

60 "OO'N

55 "OO'N

tI -.- 0 '" .'

136

..

Alaska

Other King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50 "OO'N

170000'W

Longitude

160 °OO'W

50000'N

65 "OO'N

60 "OO'N

55 "OO'N

50 "OO'N

Figure 8.--continued.

" ••.• 0 '" .'

170000'W

Longitude

..

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65000'N

60000'N

55000'N

50000'N
65 «)O'N

60 «)O'N

55 «)O'N

50 «)O'N

65 «)O'N

60 «)O' N

55 «)O'N

50 «)O'N

Figure 8.--Continued.

180 ·OO'W

;I •..• 0

"

137

170·00'W

Longitude

170 ·OO'W

Longitude

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160·00'W

..

Alaska

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

160·00'W

65000'N

60000'N

55000'N

50000'N

65000'N

60000'N

55000'N

50000'N
Table 25.--Estimated bycatch of red king crab (by number of crab) by u.s. domestic groundflsh vessels In the Bering Sea and Aleutian

Islands region by NPFMC area and gear type, 1990.

(Dashes Indicate area not fished.)

Area Area X by gear

Total 54016721 521345type 511

50,702 1597 98,430 1,200 805 1732,887 1,940 91.91 455 209 38,462

13801090 191 4380.4X -. 0

O.OX.-2020 0

0 18 8,215 .-0 8,262 2620107.71

50,704 1598 107,132 1,200 914 1752,913 1,958 347 455 46,868

47.3X 0.3X4 151 0.9X2 2.71 1.8X 43.71

•....

w

(X)
Table 26.--Estimated bycatch of "other" king crabs* (by nurber of crabs) by U.S. domestic groundfish vessels in the Bering Sea and Aleutian

Islands region by NPFMC area and gear type, 1990.

(Dashes indicate area not fished.)

Area X by gear

Total 5211215 5672214 5403 511 type

2,603 13,167 4,671 30624,899 3298.4X 952 24576 . 290

230210-- 0 1 139 70.5X 10

26--169 0.9" 7018231 9 10.2X 39--39000 0

2,627 13,337 3,069 47011,051 25,308 2894596 291

52.7X 1862.1X 104 O.OX 04 4.2X 04 1.1X

I-'

W

\D
140

in metric tons (t» and red king crab bycatch (in numbers) by target

fishery and NPFMC zone in the Bering Sea and Aleutians Islands region, 1990.

Red king crab

% ofBycatch % Per total withint ofredking(numbers) crabcatch bycatch gr04.l'ldfish zone Zone

35,215.681,170 81.6%75.8X 2.30 1

12,124.737.0% 1,6910.14 1.6% 2

17,014.639.3% 1,1930.07 1.1% 364,354.9 84,054 78.5% -- 1.31

31,215.3 <0.01 0.1% 0.1% 98 1788,589.8 0.00 0.0%0.0%02388,334.3 0.00 0.0%0.0%01,208,139.4 <0.01 0.1% -- 98

17,479.8 4,238 4.3%4.0% 0.24 181,997.3 0.00 0.0%0.0% 0 2

19,350.210.3% 313 0.02.3%118,827.3 4,5510.04 --4.2%

31,635.3 5,788 5.8X5.4% 0.18 1

100,800.462.1% 2,8380.03 26%46,717.925.0% 0.02 7580.7%179,153.6 9,384 --8.8X0.05

136.8 0.00 0.0% 0 0.0% 1

44,879.7 0.00 0.0%0.0% 05,940.9<0.01 0.1% <0.1% 2

50,957.4 <0.01 2 <0.1% --

542.1 8,2358.3%15.19 7.7% 1

511.2 260.6% 0.05 <0.1%

364.8<0.01 <0.1% 1 <0.1%

1,418.1 8,262 -- 5.83 7.7%

71.6<0.1& 0.01 1 <0.1& 1

3,776.2<0.01 <0.1& <0.1& 313,361.918.7% 0.04 568.5%

17,209.7-.0.03 0.5% 572

nfnf nf nf 1

352.5 0.00 0.0% a 0.0%110.6 0.00 0.0% 0 0.0%

463.1 0.00 0

--0.0%

323.6 0.00 0.0% 0 0.0% 1

487.6 0.00 0.0% 0 0.0%

2,733.1 0.00 0.0%0.0% 03,544.3 0.000 --0.0%

nfnf nf nf 1

6,847.4 <0.01 0.2% <0.1& 10

24,655.7 6.6% 0.01 1990.2%

31,503.1--0.01 0.2% 209

nfnf nf nf 1nfnf nf nf 2

30,807.7 0.00 0.0%0.0% 0

30,807.7 0.00 --0.0%0

116,620.1 99,530 92.9X .. 0.85 1

1,040,366.8 4,568 <0.01 4.3% --

549,391.7 3,0340.01 --2.8%1,706,378.6107,1320.06
141

in metric tons (t» and "other" king crabs· bycatch (in nurbers) by

target fishery and NPFMC zone in the Bering Sea and Aleutians Islands - region, 1990. "Other" king crabs 

X of total Bycatch X Per within "other" t ofking (nurbers) crabscatch bycatch groundfi zone Zonesh

35,215.6<0.01 0.9X <0.1X 3 1

12,124.736.9X 2,4890.21 9.8X 217,014.6 0.9X 0.01 1720.7X3

64,354.9 2,664 10.5X -- 0.04

31,215.3 0.00 O.OXO.OX 0 1788,589.8 <0.01 1.3X 0.3X 882

388,334.3<0.01 <0.1X<0.1X 1

1,208,139.4 <0.01 89 0.4X .-

17,479.8 <0.01 7.4X 250.1X 1

81,997.3 <0.01 2.1X 1440.6X2

19,350.2 3.8X 688 0.04 2.7X

118,827.3--3.4X 0.01 857

31,635.390.8X 0.01 3071.2X 1100,800.4 8.4X· 0.01 568 2.2X

46,717.9 2.3X 0.01 4211.7X179,153.6 1,296 --5.1X0.01

136.8 0.00 O.OX 0 O.OX 1

44,879.7 <0.01 0.4X270.1X

5,940.9 <0.01 0.1X 180.1X

50,957.4 <0.0145 <0.1X --

542.1 0.00 O.OX 0 O.OX 1

511.2 0.00 O.OX 0 O.OX364.8<0.1X 390.110.2X

1,418.1 0.03 --390.2X

71.6<0.1X 0.03 2 <0.1X 1

3,776.22,669 39.6X10.5X 0.71

13,361.937.5X 6,83427.0X 051

17,209.7 9,505 37.6X -- 0.55

nfnf nf nfnf 1

352.5 120.2X 0.03 <0.1X110.6 0.07 0.1X 8 <0.1X

463.1 200.04 --0.1X

323.6<0.01 10.3X <0.1X 1

487.6 0.01 0.1X 6<0.1X

2,733.1 0.9X 171 0.06 0.7X

3,544.3178 --0.05 0.7X

nfnf nf nf 1

6,847.411.0X 7440.112.9X

24,655.751.OX 9,29636.7X 038

31,503.1 10,0400.32 39.7X --

nfnf nf nfnf 1nfnf nf nf 2

30,807.7 3.2X 0.02 5752.3X

30,807.70.02 575 --2.3X

116,620.1 <0.01 338 1 1.3X --

1,040,366.8 26.7X --6,747 0.01549,391.7 18,223 72.0X -- 0.03

1,706,378.625,308 0.01

nf " No fishing.
142

r condition by observers in u.s. domestic groundfish catches in the

Bering Sea and Aleutian Islands region by species and gear type, 1990. Exce IIent

DeadPoor

nuarsuxXnuars Gear type

20.1X 27.5X 524 1,363 2,591 994 Trawl

O.OX oox 100.OX 997 0 0

35.8% 484 15.8% 286 126 387 Trawl

O.OX 0 0o.ox 028.6X 3238.OX 1,987 1,497 ,78 Trawl

O.OX 0 0

27.7X 72.3X O.OX 13340

20.OX 10 70.X 271 TrawlO.OX 0 0

o.ox 0 0
143

Table 30.--Biological data on the bycatch of king crabs in u.s.

domestic groundfish fisheries in the Bering Sea and

Aleutian Islands region, 1990.

Species

Percent

by species Sex

Sex

composition

Average

weight (kg)

Average

length (mm)

Red king

crab

Golden king

crab

Blue king

crab

Couesi king

crab

80.9%

17.3%

1.7%

0.1%

Male

Female

Male

Female

Male

Female

Male

Female

70.5

29.5

31.8

68.2

84.0

16.0

49.5

50.5

2.25

1.11

0.96

0.75

1.81

1.72

0.88

0.56

142.4

117.7

110.2

107.3

139.1

140.9

120.9

105.2
o 0

000 0

0 0

~ 0 0

000 000

o 0 ~ 0 0 0 0 0 0 0 0 0 ~ ~

0 o 0 0 I!> t) eo" ~61 0 0

o ~ 0 0 0 0 000

85 DON

80 OON

55 OON

50 OON

175 OOE

175 ODE

175 OOV

175 OOV

185 OOV

185 OOV

Herring (legIt)

o • 0.0

1 • < 1.0

2 • 1.0 - < 5.0

3 • 5.0 - < 10.0

4 • > 10.0

155 OOV

----L 85 OON

80 DON

,

55 DON

50 OON

155 OOV

•••

".

".

Figure 9.--Pacific herring bycatch (kg/metric ton of groundfish) in u.s. domestic

groundfish fisheries in the Bering Sea and Aleutian Islands region by

1/2"longitude by 1"longitude blocks (all gears combined), 1990.
J.45

Table 3J..--Common and scientific names of rockfish identified in

u.s. domestic groundfish catches in the Bering Sea and

Aleutian Islands region, J.990.

Common name

Dusky rockfish

Harlequin rockfish

Northern rockfish

Pacific ocean perch

Rougheye rockfish

Shortraker rockfish

Shortspine thornyhead

other rockfish*

Black rockfish

Blue rockfish

Darkblotched rockfish

Longspine thornyhead

Redbanded rockfish

Redstripe rockfish

Silvergray rockfish

Scientific name

Sebastes ciliatus

Sebastes varieaatus

Sebastes DolvsDinis

Sebastes alutus

Sebastes aleutianus

Sebastes borealis

Sebastolobus alascanus

Sebastes melanops

Sebastes mvstinus

Sebastes crameri

Sebastolobus altivelis

Sebastes babcocki

Sebastes Droriaer

Sebastes brevisDinus

*The seven species listed under "other rockfish" each made up

less than O.J.% of the rockfish catch in u.S. domestic groundfish

catches.
Table 32.--Estimated U.S. domestic rockfish catch (in metric tons) by species and NPFMC area in the Bering Sea and Aleutian Islands

region, 1990.

% of

rockfish Area All

areas 517 catch 52124013 54562 511

1,469.1 11,825.5 4,519.5 224.0 4.8 18,324.4 1.30.077.22% 269.7 0.0 10.5

1,618.8 340.1 224 <0.1 3.6 1,988.1 0.03.2 00 8.38% 0.0 0.0

1,234.5 114.6 52 60.5 1,481.2 3.0 150.03 6.24% 0.0 12.6

550.3 1165 36.7 309% 26.1 0.0 734.4 4.800 0.0545.5 79.1 170 661.5 2.79% 10.1 0.0 267.2 00 0.0

259.9 378 15.3 29.8 451.0 1.7 26.4 0509% 79.2

0.13% 11.721 31.5 6.7 1.0 00.0 0.035.8 0.25% 5.1 879.4 6.2 27 01.0 0.8

16,082.4 2,160.2 362.6 4,678.1 18.3 40.6 23,731.3 0.5 28.2 04 103.0

67.8% 197 0.1% 9 15 0.2% <0.1 12% 0.4% •....

~m
147

Table 33.--Common and scientific names of flatfish identified in

u.s. domestic groundfish catches in the Bering Sea and

Aleutian Islands region, 1990.

Common name

Alaska plaice

Arrowtooth flounder

Butter sole

Dover sole

Flathead sole

Greenland turbot

Kamchatka flounder

Rex sole

Rock sole

Starry flounder

Yellowfin sole

Other flatfish*

Bering flounder

CUrlfin sole

Deepsea sole

English sole

Longhead dab

Petrale sole

Sand sole

Scientific name

Pleuronectes auadrituberculatus

Atheresthes stomias

Pleuronectes isoleDis

Microstomus Dacificus

HiDDoalossoides elassodon

Reinhardtius hippoglossoides

Atheresthes evermanni

Errex zachirus

Pleuronectes bilineata

Platichthvs stellatus

Pleuronectes aSDer

HiDDoalossoides robustus

Pleuronichthys decurrens

Embassichthys bathvbius

Pleuronectes vetulus

Pleuronectes Droboscidea

EODsetta jordani

Psettichthvs melanostictus

* The seven species listed under "other flatfish" each made up

less than 0.1% of the flatfish catch in u.S. domestic groundfish

catches.
Table 34.--Estlmated U.S. domestic flatfish catch (In metric tons) by species and NPFMC area In the Bering Sea and Aleutian Islands

region, 1990.

" of

flatfish Area Area All

areas 51621240 catch 5125734 511

1,988.8 4,187.3 455.4 814.5 2,308.1 1,046.5 986.8 25.1 28.423,323.9 31.1" 11,483.0

15,992.0 4,046.1 1,46.7 80.5 9,280.3 11.0 40.6 0.1165.6 21. 6763" 853.5

2,540.2 9,873.4 552.8 1,487.8 152.9 2,703.0 111.0 129.350 13.1" 3.5 2,067.81,378.5 362.9 1,782.5 2,080.0 2,725.3 9,661.0 438.8 1654.32.9" 80.2 657.0

3,852.7 1,704.9 2,611.8 0.0 204.1 8,905.3 1.8 3.8451.6 11.9X 4.7 69.9

4,845.6 1,099.7 796.0 1,720.3 104.5 84.30.1 0.642.9 6.5" 2.6 994.6

417.4 250325.4 1,070.1 0.2 1.83.0 8.604 2.21.4" 131.8

308.7 641 107.7 19.8 0.1 40 34 52.5 0.7X 58 3.9 3.0

306.4 4889 26.3 5.8 00 425.4 07X 3.2 29.0 3.3 105.4184.3 <0.01 2.1 0009.1. 06 1.9 0.03" 19.5 0.6118.9 52.9 <01.200.2"80 2.3 62.6

15.135 77.2 0.1" 3 44.35 00.1 32.7

•..... 

7,762.5 5,761.2 12,580.7 7,318.4 8,325.1 7,173.4 8,907.6 712.0 83.075,085.716,461.9 ~

(X)

10.3"111.9X 7.7X 16.8" 0.9" 9.7X6" 01 1" 21.9X

*Specles Included In this category each made up less than 0.10" of the total flatfish catch and are listed in Table 33.
149

SUMMARY OF OBSERVER SAMPLING FOR GULF OF ALASKA

DOMESTIC GROUNDFISH FISHERIES

Estimates of Domestic Groundfish Catches

u.S. domestic operations in the Gulf of Alaska region

received an initial DAP allocation of 245,249 t of groundfish for

1990. There were no allocations for joint venture or foreign

fisheries. Releases from reserves raised the final allocation to

297,749 t (Table 35). Domestic groundfish vessels caught 82.1%

of this amount (244,397 t). Walleye pollock and Pacific cod were

the primary target fisheries, accounting for 33.0% and 29.0%,

respectively, of the total groundfish catch. Significant

fisheries were also conducted for sablefish and slope rockfish.

Overall, 17.0% of the allocated groundfish caught in 1990 was

reported discarded, a large part of which was attributed to

arrowtooth flounder. The large discard of arrowtooth flounder

(90.5%) was due to limited markets for products made from this

species.

The distribution of domestic groundfish catches is presented

by NPFMC area in Figure 10. Over one-half of the groundfish

catch was caught in Area 630 (128,200 t or 52% of the total

catch). The numbers and percentages of the total groundfish

catch in the other NPFMC areas was 54,700 t (22%) in Area 610,

30,000 t (12%) in Area 620, 12,400 t (5%) in Area 640, 9,100 t

(4%) in Area 650, 6,700 t (3%) in Area 631, 2,300 t (1%) in Area

621, and 1,100 t (less than 1%) in Area 680.

Restrictions

In the Gulf of Alaska (Fig. 11), bycatch limits only applied

to Pacific halibut taken in trawl and longline fisheries. Unlike

in the Bering Sea and Aleutian Islands region, where Pacific

halibut bycatch is managed by total bycatch, Pacific halibut

bycatch in the Gulf of Alaska region is managed by mortality. A

mortality rate of 50% was applied for trawl fisheries, which were

restricted to a limit of 2,000 t of Pacific halibut mortality,

and a mortality rate of 13% was used for longline fisheries,

which had a mortality limit of 750 t. No limits were set for

vessels using pots (traps) in 1990.

The Gulf of Alaska longline fishery closed on 1 July for the

remainder of the year due to attainment of its Pacific halibut

mortality limit. Attainment of the trawl Pacific halibut

mortality quota closed the Gulf of Alaska to trawling on 21

November.
150

Summary of Data Collected

In the Gulf of Alaska region, observers sampled 5,593 trawl

hauls, 2,029 longline sets, and 700 pot sets for groundfish

composition and prohibited species bycatch. Among the biological

data collected by observers in 1990 were 319,445 lengths and

9,801 otoliths from 22 groundfish species (Table 36). These data

were used by scientists of the status of stocks Task at the

Alaska Fisheries Science Center for use in determining biomass

estimates and year-class strengths. The results are reported in

of"stock AlaskaAssessment Groundfishand Fishe~". Fishery Evaluation Report for the 1991 Gulf

From prohibited species, observers collected 9,894 crab

carapace lengths and widths, 5,142 Pacific salmon lengths, and

67,626 Pacific halibut lengths. Observers also collected scales

from 3,648 Pacific salmon for species verification and age

analysis. Condition was recorded for 139,900 Pacific halibut,

13,731 snow crabs, and 2,177 king crabs. Observers also

recovered 41 tagged chinook salmon. No stomach samples were

collected by observers in the Gulf of Alaska region in 1990.

Observations of Fishing Gear-Marine Mammal Interactions

Observers monitored 96,586 t of groundfish taken in 7,603

trawl hauls and 6,346 t of groundfish taken in 2,232 longline

sets for fishing gear-marine mammal interactions in Gulf of

Alaska groundfish fisheries in 1990 (Table 37). Nineteen of the

29 animals involved in interactions were deterred, 5 animals were

caught freshly dead, 2 were decomposed, 1 was caught and released

unharmed, and 2 were caught but released without the condition

being determined. Of the 15 killer whales that were encountered,

all were deterred in a single longline set. Of the eight Steller

sea lions involved in interactions, two were freshly dead, three

were deterred, one was released unharmed, and two were released

without their condition being determined. Also encountered were

four northern elephant seals (Mirounqa anqustirostrius, three

freshly dead and one deterred), and two unidentifiable species of

marine mammals (both decomposed).

Observations of Fishing Gear-Sea Bird Interactions

In longline sets sampled for groundfish species and

prohibited species incidence, sea birds were observed in 19

(1.0%) sets. Numbers extrapolated from sample weight to set

weight yielded 38 birds (58 kg) in sampled longline sets. No

seabirds were recorded in trawl hauls or pot sets.

2Available from the North Pacific Fishery Management

Council, P.O. Box 103136, Anchorage, AK 99510.
151

Bycatch of Prohibited Species

Pacific Salmon

Bycatch rates and average weights of Pacific salmon for

trawl vessels are presented in Table 38. No Pacific salmon were

observed caught in longline or pot fisheries. Excluding NPFMC

areas with low groundfish catches, the highest annual rates were

generally observed in Areas 620 and 621 and were associated with

target fisheries for flatfish and "other species" with the use of

bottom trawl gear. In the flatfish fishery in Area 621, the

highest rates were observed in October (4.387 fish/t), July

(3.073 fish/t), August (1.394 fish/t), and September (0.854

fish/t), while in Area 620, the highest monthly rate was observed

in April (0.952 fish/t). In "other species" fisheries (which

caught primarily Pacific cod), the highest rates in Area 620 were

observed in April (1.117 fish/t) and in Area 621 the highest

rates were observed in March (2.567 fish/t) and April (1.292

fish/t).

Bycatch rates of Pacific salmon are plotted by 1/20 latitude

and 10 longitude statistical areas in Figure 12 by gear type and

quarter for the bottom trawl and midwater trawl fisheries. Rates

were generally less than 1.0 salmon/to However, the flatfish

bottom trawl fishery had two rates exceeding 3.0 salmon/t in Area

621 during the fourth quarter, and one rate exceeding 2.0

salmon/t in Area 630 during the second quarter. In the "other

species" bottom trawl fishery, a rate exceeded 3.0 salmon/t on

the continental slope of Area 620 during the first quarter;

single rates exceeded 2.0 salmon/t in Area 610 in the second and

fourth quarters, and in Area 621 during the third quarter.

The estimated u.S. domestic bycatch of Pacific salmon.in

1990 was 21,085 fish (Table 39). Bycatch in Areas 630 and 620

accounted for 48.9% and 38.7%, respectively, of the bycatch. By

gear type, vessels using bottom trawl gear caught about 14,950

salmon and vessels using pelagic trawl gear caught about 6,135

salmon.

By target fishery, most of the bycatch of Pacific salmon was

taken by the walleye pollock midwater (6,132 fiSh), flatfish

(6,004 fiSh), and "other" trawl fisheries (6,003 fish)

(Table 40). However, the overall bycatch rate was much higher in

the flatfish fishery (0.239 fish/t) than in the walleye pollock

midwater fishery (0.119 fish/t) and "other species" fishery

(0.079 fish/t). Of the remaining bycatch, 2,551 fish were taken

in the rockfish fiShery, 206 fish in the sablefish trawl fishery,

and 189 fish in the walleye pollock bottom trawl fishery.

The species composition, sex composition, average weight,

and average length of incidentally caught Pacific salmon are
152

given in Table 41. Chinook salmon made up 80.3% of the total

salmon bycatch, followed by chum (12.0%), coho (7.0%), sockeye

(0.4%), and pink salmon (0.3%). No steelhead were observed taken

in 1990.

Pacific Halibut

Bycatch rates and average weights for Pacific halibut are

listed in Table 42. The highest rates occurred in longline

fisheries. Annual rates by NPFMC area and target exceeded 100

kg/t in all NPFMC areas except Area 640 in the sablefish fishery

(52 kg/t) and Area 631 in the Pacific cod fishery (33 kg/t).

There were three occurrences where Pacific halibut was caught at

a higher rate than was the catch of allocated groundfish--in

Areas 621 (3,622 kg/t) and 610 (1,373 kg/t) in the "other" target

fishery and in Area 621 (1,490 kg/t) in the sablefish fishery.

Annual rates for vessels using bottom trawl gear that targeted on

flatfish and "other species" exceeded 10 k g/t in all NPFMC areas

sampled by observers except in Areas 610 and 680. Also, in all

NPFMC areas except Area 650, flatfish fisheries showed at least

one monthly occurrence of over 50 kg/t. For pot fishery vessels,

the highest annual rate was observed in Area 620 (316 kg/t). For

vessels using pelagic gear, only one annual rate exceeded 1 kg/t

(5 kg/t in Area 610 in the "other species" target fishery).

The average weight of Pacific halibut in 1990 was 6.31 kg

and the average length3 was 70.31 cm. The smallest average

weights for Pacific halibut by NPFMC area and gear type on an

annual basis were observed in bottom trawl catches in Areas 621

and 631, with all annual average weights less than the average

for the entire Gulf of Alaska. Small Pacific halibut also

occurred in the pelagic trawl walleye pollock fishery in Area 631

(2.55 kg). The largest average Pacific halibut weights were less

associated by NPFMC area or gear type. The largest average

weight (22.66 kg) occurred in Area 640 in the walleye pollock

fishery (using bottom gear), the second largest (19.65 kg) in the

pot fishery in Area 620, the third largest (16.25 kg) in Area 621

in the walleye pollock fishery (using pelagic gear), and the

fourth largest (13.36 kg) in Area 621 in the longline "other"

fishery.

Pacific halibut bycatch rates are plotted in 1/20 latitude

by 10 longitude statistical blocks by target fishery, gear type

and quarter in Figure 13. In bottom trawl, longline, and pot

3It should be noted that large Pacific halibut caught by longline

vessels are usually not landed. Observers estimate the weight of

these fish, but frequently are not able to measure their length.

As a result, the size of these unlanded Pacific halibut are

reflected in average weight but not average length data.
153

fisheries, high bycatch rates (greater than 10 k9/t) occurred

throughout the Gulf of Alaska wherever fishing occurred on the

continental shelf. Some rates were lower in scattered blocks

along the continental slope where depths were greater. Rates

were generally less than 1 kg/t for the walleye pollock midwater

trawl fishery.

Groundfish fisheries in the Gulf of Alaska caught an

estimated 12,152 t of Pacific halibut in 1990 (Table 43). By

comparison, the highest bycatch ever taken by the combined

foreign and joint venture fisheries was 3,592 t, which was taken

in 1983 (Guttormsen et ale 1990). Longline vessels took 7,502 t

(or 61.7%), and bottom trawl vessels took 4,336 t (or 35.7%), pot

vessels took 2.4%, and pelagic trawl vessels took 0.2%. By

weight, over one-half of the incidentally caught Pacific halibut

in 1990 were taken in Area 630. The estimated weight of Pacific

halibut mortality in 1990 was 3,190 t. The amount of mortality

was highest for vessels using bottom trawl gear (2,168 t). For

the other gear types, estimated mortality was 975 t for longline

vessels, 35 t for pot vessels, and 12 t for vessels using pelagic

trawl gear.

williams and Wildebuer (1991) examined Pacific halibut

viability data from 3,874 trawls, 985 longline sets, and 441 pot

sets sampled by observers in the Gulf of Alaska region in 1990

and found that mortality ranged from 70 to 72% for trawls, 13 to

18% for longlines, and 6 to 10% for pots. Based on the results

of this analysis, they recommended a 65% mortality rate for the

management of Pacific halibut bycatch for trawl vessels. They

also recommended a 10% mortality rate for pot vessels and found

that the 16% rate for longline vessels was appropriate for use in

future years.

The sablefish longline fishery caught 57.6% of the Pacific

halibut bycatch taken in the Gulf of Alaska region in 1990 (Table

44). In terms of total mortality, however, the fishery accounted

for 28.5% of the bycatch, which was comparable to the percentage

of the total mortality taken by the "other species" trawl fishery

(27.7%) and the rockfish fishery (21.1%). The amount of Pacific

halibut bycatch per metric ton of groundfish was also highest in

the sablefish longline fishery, both in terms of total Pacific

halibut bycatch (289.1 k9/t) and mortality (37.6 k9/t).

Snow (Tanner) Crabs

The highest bycatch rates for ~. bairdi on an annual basis

were observed in the pot fishery (Table 45). Bycatch rates for

that fishery were 17.184 crab/t in Area 621, 6.129 crab/t in Area

.610, 4.948 crab/t in Area 630, and 1.790 crab/t in Area 631. In

catches of groundfish taken with bottom trawl gear, annual rates

were less than 1 crab/t with the exception of Area 630 in the
154

flatfish fishery (6.299 crab/t). For the pelagic walleye pollock

fishery, rates of 0.007 crab/t and less than 0.001 crab/t were

observed in Areas 621 and 630, respectively, and all other rates

were zero. In "other" fisheries (using pelagic gear), a rate of

0.024 crab/t was observed in Area 630; all other rates were zero.

In longline fisheries, no crab were observed in "other" target

fisheries, and the highest annual rate in the sablefish fishery

was 0.040 crab/t in Area 640. Only in the Pacific cod longline

fishery were c. bairdi observed in all sampled NPFMC areas, with

rates ranging from 0.414 crab/t in Area 621 to 0.026 crab/t in

Area 610.

For "other" snow crabs, the only annual rates of greater

than 0.1 crab/t were observed in Area 640 in the longline "other"

fishery (0.382 crab/t), in Area 610 in the pot fishery (0.356

crab/t), and in Area 620 in the flatfish fishery (0.279 crab/t)

(Table 46). No "other" snow crabs were observed taken with

pelagic trawl gear in the Pacific cod or walleye pollock

fisheries when bottom trawl gear was used, with the exception of

0.001 crab/t in Area 610.

C. bairdi bycatch rates are plotted in 1/20 latitude by

10 longitude statistical blocks by target fishery, gear type, and

quarter in Figure 14. Rates were generally less than 1.0 crab/t

in all fisheries and NPFMC areas, except near Kodiak Island where

the highest rates of greater than 25 crab/t occurred in the

flatfish bottom trawl fishery during the fourth quarter and the

pot fishery during the second and third quarters.

"Other" snow crabs bycatch rates are given by 1/20 latitude

by 10 longitude statistical blocks in Figure 15. Nearly all

rates were zero or less than 1~0 crab/t throughout the Gulf of

Alaska.

An estimated 198,289 C. bairdi were caught in u.s.

groundfish fisheries in 1990 (Table 47). The bycatch was taken

mostly by two gear types--pot, which accounted for 51.8% of the

total bycatch and bottom trawl, which caught 47.4% of the

C. bairdi. Bycatch was mostly confined to Areas 630 and 620,

where 47.9% and 39.2%, respectively, of the take occurred.

An estimated 6,500 "other" snow crabs were incidentally

caught in 1990 (Table 48). Vessels using bottom trawl gear

caught the largest amount (48.4% of the bycatch). Longline

vessels caught 25.9% and pot vessels caught 25.8%. No crabs were

observed caught in pelagic trawl catches.

Estimated bycatch of

in Table 49. Over 98% of

fisheries: pot and trawl

flatfish trawl fisheries.

C. bairdi by target fishery are given

the bycatch occurred in three

"other" (primarily for Pacific cod) and

Pot vessels took the largest amount
155

(102,717 crab), while trawl vessels caught 46,162 crab in the

"other" target fishery and 46,233 crab in the flatfish fishery.

Bycatch of "other" snow crabs was highest in the flatfish

fishery, which caught 2,109 crabs (Table 50). The remaining

bycatch was mostly taken by the pot fishery (1,674 crabs), the

sablefish longline (1,640 crabs), and the rockfish fishery (901

crabs).

Of the 13,731 snow crabs examined by observers for

condition, 12,889 were C. bairdi (Table 51). For pot vessels,

96.0% of the C. bairdi were observed to be in excellent

condition, 3.6% in poor condition, and 0.4% were dead. For trawl

vessels, 41.0% were judged to be in excellent condition, 34.8% in

poor condition, and 24.3% were dead. Of species taken in lesser

amounts, c. tanneri taken in trawl catches showed the highest

mortality (77.2% dead).

Of the snow crabs recorded by observers in groundfish

catches in the Gulf of Alaska region, 96.8% were c. bairdi

(Table 52). Other species caught were g. tanneri (3.1%) and

g. anaulatus (0.1%). For all species except C. anqulatus, the

ratio of males to females exceeded 2:1.

King Crabs

Incidental bycatch rates and average weights of red king

crab taken in groundfish fisheries in the Gulf of Alaska are

given in Table 53. The highest annual rate for red king crab was

observed in the pot fishery in Area 630 (2.336 crab/t). Also, a

rate of 0.175 crab/t was observed in Area 621 for this fishery.

_In trawl fisheries, the highest rates were observed in the

flatfish fishery, where 0.840 crab/t in Area 610 and 0.150 crab/t

in Area 621 were recorded. In longline fisheries, all annual

rates were less than 0.1 crab/to No red king crab were observed

when pelagic trawl gear was used.

The highest bycatch rates for "other" king crabs was

observed in "other" fisheries using bottom trawl gear, occurring

in Areas 620 (0.094 crab/t) and 610 (0.093 crab/t) (Table 54).

Rates in all other trawl fisheries were less than 0.05 crab/to

In longline fisheries, "other" king crabs were observed only in

the sablefish fishery in Areas 610, 620 and 630, with the highest

rate occurring in Area 610 (0.049 crab/t), and in the "other

species" fishery in Area 630 (0.072 crab/t). Bycatch also

occurred in the flatfish fishery but no rate exceeded

0.05 crab/to No "other" king crabs were observed taken with

pelagic trawl or pot gear.

Red king crab bycatch rates are plotted in 1/20 latitude by

10 longitUde statistical blocks by target fishery, gear type, and
156

quarter in Figure 16. Rates were generally zero or less than 1.0

crab/t in all fisheries and NPFMC areas. The few rates greater

than 5.0 crab/t occurred near Kodiak Island, in the pot fishery

during the third quarter and the flatfish bottom trawl fishery

during the fourth quarter.

"Other" king crabs bycatch rates are given by 1/20 latitude

by 10 longitude statistical blocks in Figure 17. Nearly all

rates were zero or less than 1.0 crab/t throughout the Gulf of

Alaska. The highest rates were less than 5.0 crab/t in the

western portion of Area 620 during the third quarter flatfish

bottom trawl fishery and near the eastern border of Area 610

during the third and fourth quarter of the "other species" bottom

trawl fishery.

The estimated bycatch of red king crab was 6,908 crab

(Table 55). Pot vessels accounted for 91.1% of the red king crab

caught in the Gulf of Alaska. The remainder of the bycatch was

taken by bottom trawl vessels (507 crab) and long1ine vessels

(106 crab).

An estimated 3,237 "other" king crabs were incidentally

caught in the Gulf of Alaska in 1990 (Table 56). The bycatch was

taken entirely by vessels using bottom trawl gear, which caught

about 2,455 crabs, and longline vessels, which caught 782 crabs.

The bycatch of red king crab by target fishery is given in

Table 57. Pot fishery vessels caught red king crab at a rate of

1.116 crab per metric ton of groundfish. No other fishery caught

red king crab at a rate higher than 0.01 crab/to

The bycatch of "other" king crabs was highest in the

rockfish fishery, both in terms of total amount (1,898 crabs or

58.6% of the bycatch) and crabs per metric ton of groundfish

(0.056 crab/t) (Table 58).

All red king crab observed for condition in catches of pot

vessels were considered to be in excellent condition (Table 59).

In trawl fisheries, most of the bycatch consisted of red and

golden king crab, and condition was similar for these two

species. For red king crab, 40.5% were in excellent condition,

37.1% were in poor condition, and 22.3% were dead. For golden

king crab, 42.8% were in excellent condition, 32.3% were in poor

condition, and 24.9% were dead.

Of the king crabs seen by observers in groundfish catches,

68.1% were red, 30.3% were golden, 1.3% were couesi, and 0.3%

were blue (Table 60). with the exception of female red king

crab, the average weight and carapace length for each species-sex

group was greater than its counterpart in the Bering Sea and

Aleutians Islands region.
157

Rockfish Catch by Species

Twenty-seven species of rockfish were identified by

observers in u.S. domestic catches in the Gulf of Alaska region

in 1990 (Table 61). The "other rockfish" group refers to the 12

species that each made up less than 0.1% of the rockfish catch.

For allocation and catch-reporting purposes, rockfish were

separated into various groups, which are defined in Table 62. In

1990, 24,693 t of rockfish were taken by U.S. qroundfish

fisheries (Table 63). Pacific ocean perch was the predominant

rockfish species taken (42.0% of the rockfish catch), followed by

rougheye rockfish (20.1%), shortraker rockfish (14.3%), northern

rockfish (6.7%), shortspine thornyhead (6.4%), and dusky rockfish

(6.3%). Pacific ocean perch was the most commonly caught

rockfish in Areas 610 (3,064 t), 620 (2,228 t), and 630 (3,323

t). Shortraker rockfish fish (1,616 t) and Pacific ocean perch

(1,438 t) were the predominant rockfish species caught in Area

640. Rougheye rockfish was the major rockfish species taken in

Area 650 (1,194 t) and 680 (156 t). By NPFMC area, 29.7% of the

rockfish was caught in Area 630, 23.3% in Area 610, 20.0% in Area

640, 17.6% in Area 620, and 8.3% in Area 650. The combined catch

in Areas 621, 631, and 680 amounted to only 1.0%.

Flatfish Catch by Species

sixteen species of flatfish were identified by observers in

1990 (Table 64). The "other flatfish" group refers to the five

species that each made up less than 0.1% of the rockfish catch.

Flatfish groups designated for allocation and catch-reporting

purposes are shown in Table 65. Arrowtooth flounder accounted

for 18,913 t of the 34,742 t of flatfish taken in the Gulf of

Alaska region and was the most commonly taken flatfish in all

NPFMC areas except Area 631 (Table 66). Of the remaining species

of flatfish caught in the Gulf of Alaska groundfish fisheries,

rock sole made up 17.7% of the flatfish catch, followed in order

by rex sole (Errex zachirus, 10.5%), Dover sole (Microstomus

Dacificus, 6.8%), flathead sole (5.6%), and yellowfin sole

(2.0%). The largest portion of catches of rock sole (3,720 t),

flathead sole (1,683 t), and Dover sole (1,288 t) were taken in

Area 630. The largest catch of rex sole (2,006 t) was taken in

Area 620, and the largest catch of yellowfin sole (642 t) was

taken in Area 610.
Table 35.--Estimated groundflsh catches (In metric tons) reported by u.s. processing vessels and plants in the Gulf of Alaska region, 1990.

Species

Percent Percent Discarded Total Retained Percentcatch catch catch bycaught species discarded ofDAp· DAP

13,400 8,586.5 8.4X 32.97X 6,800.6 109.8X 13,785.990,000 7,825.4 2.5X 28.98X 1,757.8 78.7X 69,067.626,000 25,766.5 2.6X 10.54X682.2 99.1X 25,084.317,700 18.6X 20,939.7 8.57X 3,902.7 118.3X 17,037.032,000 90.5X 18,913.3 17,124.7 7.74X59.1X 1,788.610,000 46.2X 3.27X 7,981.4 3,685.3 79.8X 4,296.122,000 27.3X 3.21X 7,847.3 2,138.5 35.7X 5,708.814,179 66.5X 7,783.5 3.18X 5,178.0 54.9X 2,605.58,200 1646.4 16.3X 0.67X268.7 20.1X 1,377.73,800 1575.0 3.6X O.64X41.4X 57.2 1,517.8

0.22X 11.9 531.5 470 113.1X 63.0 468.5

297,749 244,396.5 41,658.7 82.1X 202,137.8 H.OX

-------- ----

•.....

111

00
Area 621 2.3 (1X)

Area 630 128.2 (52X)

159

Area 620 30.0 (12X)

Area 610 54.7 (22X)

Area 680 1.1 «1X)

Area 650 9.1 (4X)

Area 640 12.4 (5X)

Area 631 6.7 (3X)

Figure 10.--Total U.s. domestic groundfish catch in thousands of

metric tons (% of total catch) in the Gulf of Alaska

region by NPFMC area, 1990.
•...

0'1 o

60' N

64· N

50· N

550 N

130· VV

1

YAKUTAT

680

54°30'

137'00'

1400 W

WEST YAKUTAT

640

690

150· W

147" • ",,0('

j-c.

~o

~(,o

.,a.

0,),,\

<c,"'~

KODIAK

130

A 5/1'51'. 153'15'1/

• 5/1'51'. 152'00'1/

C Intersection 0' 152'00'1/"

with A'ognok /liond. Counto.

clockwise oround Afognok,

Kodiok, end Raspberry I.londs t. o 57'00'. 15'°00'1/

E 56'30'. 15"00'1/

, 56"30'N 155'00'1/

G 56'00'N 155°00'1/

H 56'00'N 157°00'1/

I Intenectlon 0' 157"00'. "Ith

Aluke Penlnsul.

I••••0'·' ••

~,. ..:'... -~.,,..... ~. ....~~r:.., ....

~M·•••.I······ ..·::.....',.::.- ... ;,::::.':, .... . ( •••••• M.~ ' ••

...•....')'..... ...... • I _, )...•.

.....

•..•.

....... .....

CHIRIKOF

620

159"

170· W 160' W

~

."

"'!'"

t;.j

.

.••. 0 !'.

.~...-._. a " ...... ,.., .••..~.: .~~~ ,

'.. ~a '. '()

.... "- •..•. "

..........} .'

~ ·.o~ ~.

- "...,-I.'

I

~.....:.'

":"t·· .:","...•.. ./••••••••

SHUMAGIN .

.

610

Figure 11.--Reporting NPFMC areas of the Gulf of Alaska region.
161

Table 36.--Summary of data collected by u.s. groundfish observers

in the Gulf of Alaska region, 1990.

species

Age

Lengths1 structures2 Condition

Groundfish species

Walleye pollock

Pacific cod

Sablefish

Atka mackerel

Pacific ocean perch

Bocaccio

Northern rockfish

Sharpchin rockfish

Rougheye rockfish

Black rockfish

Redbanded rockfish

Silvergray rockfish

Splitnose rockfish

Shortraker rockfish

Dusky rockfish

Shortspine thornyhead

Greenland turbot

Flathead sole

Rock sole

Alaska plaice

Butter sole

Arrowtooth flounder

Totals

60,010

92,153

48,331

6,596

51,67349

4,670

311

14,196

200

22

126

23

6,012

1,122

8,934

3,835

950

9,345

7,438

424

3,025

319,445

3,890

2,756

1,370

208

696

--

74

306

82

--

90

109

64

156

9,801

Prohibited species

Chionoecetes bairdi

C. ancrolatus

C. tanneri

Red king crab

Golden king crab

Blue king crab

Chinook salmon

Chum salmon

Silver salmon

Sockeye salmon

pink salmon

Pacific halibut

Totals

7,694 12,889 -- 45

49-- 757

793 -- 395

875-- 996

1,295 -- 7

--7

4,022

2,734

802

802

269

99

38

9

11

4

67,626

139,900 -- 82,662

155,808 3,648

lFork lengths were collected from fish, carapace widths from snow

(Tanner) crabs, and carapace lengths from king crabs.

20toliths were collected from most groundfish species, and scales

were collected from Pacific salmon and pacific cod.
162

Table 37.--0bserved marine mammal-fishing gear interactions in

u.s. domestic groundfish fisheries in the Gulf of

Alaska region by gear type, species, and condition

of animal, 1990.

Gear type Species Numbr Condition1

Steller1 seaFreshly lion dead

Northern2 elephant Freshly dead seal

Unidentified 1 Decomposed pinniped whaleSteller1 seaFreshly lion dead

Steller3 seaDeterred lionSteller1 seaUnharmed lionSteller2 seaUnknown lion

Northern1 elephant Freshly dead seal

Northern1 elephant Deterred seal

Killer15whale

l"Freshly dead" refers to animals not decomposed or shot that

were brought onboard or released from fishing gear.

"Decomposed" refers to animals obviously dead prior to contact

with fishing gear. "Unharmed" refers to animals entrapped by

fiShing gear but released without apparent injury. "Unknown"

refers to animals entrapped by fishing gear but released before

the observer could determine the animal's condition. "Deterred"

refers to animals that were not entrapped but were subjected to

harrassment such as seal bombs.

20bservers sampled 96,586 metric tons of groundfish taken in

7,603 trawls.

30bservers sampled 6,346 metric tons of groundfish taken in

2,232 longline sets.
Table 38.--Monthly bycatch rates (number per metric ton of catch and average weight (kg» of Pacific salmon taken in u.s. domestic

groundfish fisheries in the Gulf of Alaska region by gear type, target fishery, and NPFMC area, 1990.

Area 610

Area 6803145 620

Avg.Rate

wt.

Jan.

0.00--0.000 -- -- 0.000 0.00

6.57--0.104 -- -- 0.161 1.95-- - - -- ns ns

0.00 0.000 --.000 --0.187 0.00 296 1.87 26015 0.08700

4.23 16 0.952 eo 0.129 --0.226 5.35 0.004-- 0.00 717 0.000

4.42 591 0.131000 0.6.000 -- --0.000 0.00 0.000

July

3.4317 284 3.073 0124.3010.000

3.348 409 0.0 0.241000 0. 13940.000 -- --0.000

- -0.000 -- 0.854 0.00 273.96 0.02700

6.10 362 2.9 425 2.84 009.66 4387 0.110.051

-- --0.000 0.00-- --0.064 3.30

--- -•.....--

G'\

-- -- --- W

2.77 000 3.5 41940 1.9 529 0.342030 0.0454113 0.260.113

Jan.

-- ----- 0.141 2.1739 0.879-- -- -- 0.000 0.00

--0.000 -- -- 0.094 2.50

0.00--0.000 -- -- 0.000 0.00

-- -------- 0.000 0.00

July

-- -- 0.624 3.73-- --0.256 4.11

0.00--0.000 -- -- 0.000 0.00--0.17- -2.178 -- -- 0.007 3.99

3.62--0.034 --0.207 6.43 302 0.046

Dec. Yar

3.4073 6 3.36 217 0.00879 0.624207 0.033000.034
Table 38.--Continued.

Area 610

Area Area 680 631405 62013

Avg. Avg.Rate

wt. wt.

Jan.

0.103 ns2.05 00 ns..ns0.000 u-- u ns ns

0.256 4.70 26.92 185 0.364 0.126ns0.007 -- --ns ns0.124 ns4.4482 328 4.063 00 0.000675 2.567 0072ns0.014

0.031 nsns2.75 558 2.87 55 6.18 38 0.345010 1.17292ns0.011

0.006 nsns7.62 000 4.74 695 2.40 32 0.306155 0.00849 ns0.000

0.00--0.000 -- -- ns ns

0.98 3518 4.68 0.101038 0.550.013 -- --0.063 8.12 000 0.000

ns3.9900 47 0.00 54 0.60900 0.257ns0.009

3.00 0 2.43 0.000471 0.0550.000

2.64 458 3.17 243 0.00 0.00078 0.594110.156

3.24 50 0.038 --0.019 --0.249 3.17

-- n---- f-I

ns ns u---------u0\

ns4.44 61 3.509 272 5.41 185 0.0130561 0.747120 0.075ns0.043 ,!:>.

Jan.

0.00--0.000 --0.241 2.6672 327 0.047640.000.000 -- --0.004 2.2112 1.57 0021.66

Apr.

0.00--0.000 --0.000 1.67 0000 0.004

-- ---- --- 0.096 4.97

--ns0.979 --ns -- 3.63-- eo0.000 0.00

-- -- -- 0.072 4.33

0.001 -- -- 6.92

ns ns ----- 0.050 3.47 000 0.000

3.26--0.034 -- -- 0.155 ns3.36ns

Dec. Yer

0.021 ns3.4706 225 0.00 326 0.118052 0.00ns0.032
Table 38.--Continued.

Area 610

Rate Avg.

wt.

Pelagic trawl (other targets)

Area 620

Rate Avg.

wt.

Area 621

Rate Avg.

wt.

Area 630

Rate Avg.

wt.

Area 631

Rate Avg.

wt.

Area 640

Rate Avg.

wt.

Area 650

Rate Avg.

wt.

Area 680

Rate Avg.

wt.

ns ns

0.000 0.00

0.016 8.55

Jan.

Feb.

n --n- 00-- 0.000 0.00

n ---- -- 0.000 0.00

ns ns ------ 0.000 0.00

-- ---- oo- - ns ns-- -00-.---- 1.277 6.23

-- ow

ns----ns

Sep.

n n-- --- 0.089 1.27

ns3.12ns1.244 --0.156 -- 5.10

-- -- -- --- ns ns

ns

3.12ns1.244 --0.145 -- 4.89

ns = Fishing occurred but no sampling by observers.

ns ns 0.014 8.55

•...

0'1

U1
166

65 <UO'N-1 I" ~~ I , • , ~ 'B;c~t~h 's~e~ie~: Salmon I-65 .OO'N

Target Fishery: Flatfish Solman (no/ton)

Gear type: • Bottom Trawl 0 0.0

Quarter: First Quarter 1 <- 1

Year: 1990' 2 > 1 <- 2 3 > 2 <- 3

\ 4 > 3

· (

60 <UO'Nj <)~'-4T •..• ' •AI~ka .f'. ~.•.•.• ('v?J ~c;::::r;: - '(,~' _." .,' ."_•.. ,.._. ~t"-- ~."~\"''':'. _. ". '(-' ··..··1,..,' •. ""'-'- .•.. , \ # r60.00'N '"

~

~

D

....J •

2Q.Q'-f!1eters

55 <UO'NJ . _.~. ....c..r-'"~' .. ~1~1 " .'__// I KODIAK/ 630 \.1'I. YAKUTA166D 650., 1\..•~ ... ' ~55·00'N I

,~f'!!i"':~ "'!

~~t 610 .

50 <UO'N 50·00'N I I I I I I I I I I I I I I I I I I I I I I I I I I I I

170 ·OO'W 160 ·OO'W 150 ·OO'W 140 ·OO'W 130 ·OO'W

Longitude

65 <UO'N~ I , '~~ I , , , ~ IB;c~t~h 's~e~ie~:' , Salmon 1-65.00'N

Target Fishery: Flatfish Solmon (no/ton)

Gear type: • Bottom Trawl 0 0.0

Quarter: Second Quarter 1 <- 1

Year: 1990' 2 > 1 <- 2 3 > 2 <- 3

\ 4 > 3 ( .

Alaska

60 <UO'Nj <)~~.".. • }~.•.•.• f'v?J ~c;::::r;:. - r~C'~#r _~.' ..',..0'·..-010··0'0!''''1'' ~.,.9..9. '.'., ,..;> ""'-'- ..•.., \ # r60.00'N '"

~:J

:§ j.200f'l'1eters

55<UO'N '. ,,' ~. -"- •••Iv :' •• I KODIAK / \.1 YAKUTAT 660 ";".1t\~£. ~55·00'N

50 <UO'N 50 ·OO'N

170 ·OO'W 160 ·OO'W 150 ·OO'W

Longitude

'40·00'W 130"00'W

Figure 12.--Average incidence (no.It) of Pacific salmon in the

U.S. domestic fisheries by quarter, target fishery,

gear type, and 1/2" latitude by 1/2" longitude areas

in the Gulf of Alaska region, 1990.
55 <QO'N

50 <QO'N

2Q.Q·-rpeters

55 <QO'N

50 <QO'N

170·00'W 150·00'W

167

150·00'W

Longitude

\

(

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 . > 2 <- 3

4 > 3

1 40 ·OO'W 130 ·OOW

55·00'N

50·00'N

55 ·OO'N

50·00'N

55 <QO'N

50 <QO'N

55 <QO'N

50 <QO'N

2Q.Q··",eters

1 70 ·OO'W 1 50 ·OO'W 150·00'W

Longitude

\

(

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

1 40 ·OO'W 1 30 ·OO'W

55 ·OO'N

50 ·OO'N

55·00'N

50 ·OO'N

Figure 12.--Continued.
~68

50 COO'N I 1 '~I

,

, , I

,,

I

,

I

,

I

,,

I ,50'00'N160'00'W 150'00'W 130'00'W 40 'OO'W

I ,

'~~

I ,

,I,,

,

,

- Bycatch species: Solman 1-65'00'N

SalmanPollock(no/ton)

. Bottom Trawl o 0.0

Second Quarter <- 1 1

. 1990 2 > 1 <- 2

;3

2 <- 3 \ > 3 4 

(

<)~~ '(Vpj .r~~\

r6O•OO'N

• "

~ ..;. _0 .. ~ :g

-1

j200--meters 55 COO'N--- ..... ~- - "':-\

I

KODIAK / \! YAKUTAI t- 55 ·OO'N 660 i-,.~ 6S0·- ..•. ' •

.\:./ ,:"-~_., ....... ~,,r':':.~'.

SHUMAGIN

610

50 COO'NJ ./ r 50 ·OO'N 

,,

I

,,

I

,,

150463 ·OO'W

12.--Continued.

60'00'N

55'00'N

65'00'N

Salmon (no/ton)

a 0.0 I <- 1

2 > 1 <- 2

;3 > 2 <- ;3

4 >;3 \

(

-2Q.Q·-f'!1eters

65 COO'N

60 COO'N

55 COO'N
169

55·00'N

60·00'N

65 ·OO'N

50 ·OO'N

1 30 ·OO'W

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

1 40 ·OO'W

Salmon

Pollock

Bottom Trawl

Third Quarter

1990

\

(

150 ·OO'W

Longitude

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

1 60 ·OOW

-2Q.Q-ryJeters

170·00'W

65 <QO'N

60 <QO'N

50 <QO'N

55 <QO'N

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

2Q.Q-.ryJeters

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

Solman

Pollock

Bottom Trawl

Fourth Quarter

1990

\

(

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

65 ·OO'N

60·00'N

55 ·OO'N

50·00'N

170·00'W 1 60 ·OO'W 1 50 ·OOW

Longitude

140 ·OO'W 130 ·OO'W

Figure 12.--Continued.
50 'l:)O'N I 1 '~I

,

,,

I

,

I

,,

II

,,

I

t-50000'N

150000'W 1.30000'W 604000'W °OO'W

I ,

'~'~

I ,

,I,,

,

,,

- Bycatch species: Solman 1-65°00'N

Solmon Other(no/ton) Species

. Bottom Trawl o 0.0

Second Quarter <- 1 1

1990 > 1 <- 2

2 . .3

> 2 .3 \ > .3 4 

(

~

<) '-41"." ~ ' .•• ~.

r60000'N

H~ ~S:~+'Ir-~ \ 

00./, ~ p

"t):J

:g

-' ·2Q.9'-f!leters

55 'l:)O'NJ ~'-r. •..I:~/· . K:/ I~J:pn155000'N

0

CHIRIKOF

620

,50000'N

,,,

I

,

I

1.30000'W 160000'W 504 °OO'W °OO'W

12.--Continued.

65 'l:)O'N

60 'l:)O'N

55 'l:)O'N

~70

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

.3 > 2 <- .3

4 >.3

2Q,9"F!'Ieters

65°00'N

55°00'N
171

I

'~'~

I ,

,I

,

,

, ~ Bycotch species: Salmon I-65 ·OO·N

Solman Other(no/ton) Species 

. Bottom Trawl a 0.0

Third Quarter <- 1 1

1990 > 1 <- 2

2 . :3

2 <- :3 \ > :3 4 ( 

.

Alaska

~

<1 .-V" -= , "' ~

r 60 ·OO'N

.

J ~('~~io'O'~~ \ 

O'-()'J) ~ ~ -0;

:g

-' 20Qmeters

55 "CO'NJ ~. ~"~lo·O· - -I

\{ ~~~UTA! t-55•OO'N KODIAK660/ i""~

CHIRIKor

:00

;,••~oo 620 

'0 ",

50·00'N

1403506 ·OO'W

I ,

'~'~

,I I ,

I,

,

,,

~ Bycatch species: Salmon 1-65·00'N

Salmon Other(no/ton) Species 

. Bottom Trawl 0.0 0Fourth Quarter <- t 1

1990 > I <- 2

2 . :3

2 :3 \ > :3 4 

(

aska

1 ~

<1 .-v".a , "' .'. i1ft ..

r6O•OO'N 

'-"f'" •• \ M - ......... '...," ..~ ~ 

• -0 __ 0 -'--'" -'''_.'" ~-0

-'

2QQ-meters

55 "CO'N J a-::..r~10

~UUl~1{ / " \{ TAKUTA! t-55•OO'N 660 i .._.~ 650 . -0' " •

I

CHIRIKOr "./ __ 00 0 ·••.'~3/,. I620

'0

50 'Oo,J '~I

r5O•OO'N 

,, , I

,,,,I,

I

I,,

I

,,

I

150 1140·00'W 306 ·OO'W ·OO'W

Figure 12.--Continued.
55~0'N

50 ~O'N

2Q,9'-J!1eters

55 ~O'N

50 ~O'N

170·00'W

55 ~O'N

50 ~O'N

2D,9'-f!leters

55 ~O'N

50 ~O'N

Figure 12.--Continued.

150 ·OO'W

150 ·OO'W

172

150 ·OO'W

Longitude

150·00'W

Longitude

\

(

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3 •• > 3

140 ·OO'W

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3 •• > 3

140 ·OO'W

55·00'N

50·00'N

55 ·OO'N

50·00'N

130 ·OO'W

55·00'N

50·00'N

55·00'N

50·00'N

130·00'W
20,9 n"1eters

65 "OO'N

60 "OO'N

55 "OO'N

50 "OO'N

CHIRIKor

620

173

KODIAK

630

,

(

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3 4 > 3

65 ·OO'N

60·00'N

55·00'N

50·00'N

65 "OO'N

60 "OO'N

55 'DO'N

50 'DO'N

'70·00'W

2Q,9'-meters

'70·00'W

, 60 ·OO'W

, 50 ·OO'W

, 50 ·OO'W

Longitude

'50·00'W

Longitude

,

(

, 40 ·OO'W

Solmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

, 40 ·OO'W

'30·00'W

50·00'N

55 ·OO'N

50·00'N

'30·00'W

Figure 12.--Continued.
65 "OO'N

60 "OO'N

2P,Q'-f!\eters

55 "OO'N

50 "00' N

170·00'W 160 ·OO'W

174

150 ·OO'W

Longitude

\

(

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

140 ·OO'W 130 ·OO'W

65·00'N

60·00'N

55 ·OO'N

50 ·OO'N

65 "00' N

60 "OO'N

55 "OO'N

50 "OO'N

2Q,Q-f!Jeters

170·00'W

CHIRIKor

620

160 ·OO'W 150·00'W

Longitude

\

(

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

140·00'W

65·00'N

60·00'N

55·00'N

50 ·OO'N

Figure 12.--Continued.
175

65 "GO'N

60 "GO'N

55 "CO'N

50 "CO'N

20,9'rT)eters

170·00'W

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

160 ·OO'W

Salmon

Other Species Midwater Trowl

Third Quarter

1990

\

,

150 ·OO'W

Longitude

Salmon (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

140 ·OO'W 130 ·OO'W

65 ·OO'N

55 ·OO'N

50·00'N

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

2Q.9"rT)eters

170·00'W 160 ·OO'W 150·00'W

Longitude

\

,

Solman (no/ton)

o 0.0 1 <- 1

2 > 1 <- 2

3 > 2 <- 3

4 > 3

140 ·OO'W 130 ·OO'W

65·00'N

60 ·OO'N

55·00'N

50·00'N

Figure 12.--Continued.
Table 39.--Estimated bycatch of Pacific salmon (by number of fish) by U.S. domestic groundflsh vessels In the Gulf of Alaska region

by species, NPFHCarea, and gear type, 1990. (Dashes Indicate area not fished.)

Chinook salmon (numbers)

Area Area Area Area Area Area Area Area Percent by

Gear type 610 620 621 630 631 640 650 680 Total gear type

Bottom trawl 540 6,913 830 3,569 246 122 30 6 12,256 72.5X

Pelagic trawl 188 0 9 4,317 140 3 eo -- 4,657 27.5X

longl ine 0 0 0 0 0 0 0 0 0 O.OX

Pot 0 0 0 0 0 -- -- eo 0 O.OX

Total

Percent by area

728

4.3X

6,913

40.9X

839

5.0X

7,886

46.6X

386

2.3X

125

0.7X

30

0.2X

6

<0.1X

16,913

Other salmon* (numbers)

Area Area Area Area Area Area Area Area Percent by

Gear type 610 620 621 630 631 640 650 680 Total gear type

Bottom trawl 337 1,239 140 956 0 15 7 0 2,694 64.6X

Pelagic trawl 0 0 0 1,478 0 0 -- -- 1,478 35.4X

longl ine 0 0 0 0 0 0 0 0 0 O.OX

Pot 0 0 0 0 0 -- -- eo 0 O.OX ~

Total 337 1,239 140 2,434 0 15 7 0 4,172 m

Percent by area 8.1X 29.7X 3.4X 58.3X O.OX 0.4X 0.2X O.OX

Total salmon (numbers)

Area Area Area Area Area Area Area Area Percent by

Gear type 610 620 621 630 631 640 650 680 Total gear type

Bottom trawl 877 8,152 970 4,525 246 137 37 6 14,950 70.9X

Pelagic trawl 188 0 9 5,795 140 3 eo -- 6,135 29.1X

longllne 0 0 0 0 0 0 0 0 0 O.OX

Pot 0 0 0 0 0 eo -- -- 0 0 •OX

Total 1,065 8,152 979 10,320 386 140 37 6 21,085

Percent by area 5.1X 38.7X 4.6X 48.9X 1.8X 0.7X 0.2X <0.1X

*Specles In this group are coho salmon, chum salmon, sockeye salmon, and pink salmon.
177

metric tons) and Pacific salmon bycatch (in numbers) by target

fishery and NPFMC area in the Gulf of Alaska region, 1990. Pacific salmon

Per %Total within Other Chinook t% ofof total

salmon groundfish salmon salmon bycatch catch area Area*

0.242 147.7% 014 57.8 0.1% Eastern

5,966 30.1% 22,979.2 0.260 18 5,784 28.3% Central

240.012 2.3% 72,047.6 170.1%

6,00425,084.6 189 0.239 5,815 --28.5%

nfnf nf nfnf Eastern

30.0% 5,944 1,478 45,267.1 0.131 4,466 28.2% Central

18817.7% 0.030 6,321.2 0 1880.9%

6,132 1,478 51,588.3 0.119 4,654 --29.1%

nfnfnfnf nfnf Eastern

0.000 <0.1% 3418,406.7 <0.1% 1 Central.

141 17.4% 185 0.20944884.8 0.9%

144189 0.010 19,291.5 -- 0.9% 45

0.109 31.6%2 <0.1% 27.4 Eastern

28.2% 5,603 1,835 44,106.0 0.127 3,768 26.6%

39737.3% 0.012 32,277.9 2 3951.9%

6,003 1,838 76,411.3 0.079 4,165 --28.5%

0.000 0.0%249.5 0 0.0% Eastern

0.000 0.0% 3,040.2 0.0% 0

0.000 0.0% 2,451.4 0.0% 00.0005,741.1 0 -- 0.0%

nfnfnfnf nfnf Eastern

0.000 O.OX 5,478.8 0.0% 00.000 O.OX0159.7 0.0%

0.000--5,638.5 0.0%0

260.030 14.2% 0 26879.5 0.1% Eastern

1570.129 0.8% 1,215.5 1 1560.7%

230.060 2.2% 0 2383.5 0.1%

2060.083 2,478.5 1 205 -- 1.0%

0.000 O.OX 11,468.0 O.OX 0 Eastern0.000 0.0% 10,855.3 0.0% 0

0.000 O.OX 1,868.8 0.0% 0

0.000 24,192.1 -- O.OX0

140 76.5% 0.014 219,805.1 1190.7% Eastern

2,163 10.9% 15,840.4 314 0.137 1,849 10.3%

187 23.3% 248 0.030 8,325.1 611.2%

2,55133,970.6 522 0.075 2,029 --12.1%

1830.008 22,487.3 22-- 0.9% 161 Eastern

19,837 167,189.2 3,813 16,024 0.119 --94.1%

1,065 33754,720.0 --0.019 5.1% 728

21,085 244,396.5 4,1726,913 0.086

as 620, 621, 630, and 631;

and

nf

= No fishing.
178

Table 41.--Biological data on the bycatch of Pacific salmon in u.s.

domestic groundfish fisheries in the Gulf of Alaska

region, 1990.

Percent

Species by species

Chinook 80.3%

Chum 12.0%

Coho 7.0%

Sockeye 0.4%

Pink 0.3%

Sex

Sex composition

Male 40.1

Female 59.9

Male 46.7

Female 53.3

Male 44.8

Female 55.2

Male 53.7

Female 46.3

Male 33.3

Female 66.7

Average

weight (kg)

3.57

3.88

3.36

3.11

3.59

3.71

2.20

2.49

1.96

1.36

Average

length (em)

61.9

61.1

60.1

59.6

64.7

64.5

57.0

61.5

51.0

48.4
Table 42.--Monthly bycatch rates (kg of fish per metric ton of catch and average weight (kg» of Pacific halibut taken in u.s. domestic

groundfish fisheries in the Gulf of Alaska region by gear type, target fishery, and NPFMC area, 1990.

Area 610

Area Area 68031 6405213 60

Avg. Rate

wt.

Jan.

0.81-- 1.99 ----- 22.93 7.681.38 11.32 -- ----- 13.22 2.50 -- ---- ns ns

21.37 0.88 1.93 --224.24 -- 52.38 38.96 6431 23.15 8.51 615 3.02 1.12

33.85 3.97 1.51 -- 31.29 -- 49.85 5.56 -- -- 111.16 8.20 10.28 4.24

12.28 25.38 4237.86 5.10 222 8.02 --159.81 -- 94.24 16.22 6.44 8.98

July

6.74 15.67 83.00 3846.7 8.88 34 3.48 -- ---- 0.00 0.00153.411796 25.11 3959 3.56 448 9.00 3.16 26413.10

9.3459.24 -- -- 119.52 10.12 86.01 3996 5.14 2.84

104.28 6.13 81.68 233 79.22 2.37 728 5.03 2.43 5.67 -- ---- •....

-..I 

97.66 .. 105.07 0.00 2.64 0.00 3.89 -- ---- \D

Year

44.96 2844 6.10 4606 52.73 191 7.24 44078. 859 328 5.831.21

Jan.

-- ------- 0.03 2.95 000 0.00

-. -------- 0.91 0.96

3.29-- 15.60 ----- 60.57 1.914.84 9.52 -- ----- 2.680 5.91

-- --0.00 0.00 3.37-- 19.88

July

-- --7.92 8.23-- --8.60 8.64

0.05 1.96 -- ------ 3.12 18.56-- 24.92 --

22.66

15.99--34.84 ------ 4.64 10.128.72-- 2.65 -- 31.55 31.16 9.64 507

Dec. Yar

8.23 97 0.00 22.66 7.19 31.55 2492 5.07 0.00 391 5.60 2.97
Table 42.--Continued.

Area 610

Area Area 680314 650213

Avg.Rate

wt. wt.

Jan.

24.78 ns0.53 38 ns ns16.55 n ----- - ns ns

10.85 ns18.58216 1.51 205 1.317ns22.29 -- --ns ns

6.25 52.28 699 27.50 3922 4.84 3898 2.279 64 7.82 537 1.12 729 2.5111.16

29.72 ns12.83 69.58 2223 36.4757 2.33 6.95 11 7.64 843nsns13.35

20.05 ns5.19 11.39 43.68779 26.45 6.98 59 2.06 68 3.88 ns59.30

3.37-- 2.09 ----- ns ns12.15 4.85 28.00 9.05 19.13 9.8 13.9411.75 -- -- 38.91 29.60 15.86 8.56

23.80 21.30 ns7.80 46.40 3328 29.34 5385 4.98 901 6.29 17.57ns6.90

98.80 76310.22 1747 6.76 897 4.72 299 14.6623.68 8727 34.90 9855 4.07 556 4.39 263 5.57 11.20 

I-' 332.75 5.17 3.87 u 50.01 -- 45.35 5.22 u Uu --n OJ

ns --------nu-- 0 

r

6.25 11.76 3.24 10.95 23.14 45 28.42 1908.94 4.30 658 2.87 51 20.26 2519.96

Jan.

0.00 0.00 -- u

<0.01 0.00 <0.01 0.4 20 0.00

0.00

--

u 46.00 22.80 0.05 2.55 <0.01 0.06

n -------u---

0.00 0.00 -- --0.04 9.30 00 0.00

--

n------ 0.14 13.88

-- --

ns--ns --0.04 7.10 0.00-- 0.00

n

u--u

u-- 0.04 25.00

--

n---- 0.08 32.16

ns ns --..u 0.04 8.19 000 0.00

6.92-- 0.06 --0.03 u 10.04 ns ns

Dec. Yar

16.25203 0.04 6.92 000 ns2.55 <0.01 0.0 0.04 ns 0.06
Table 42.--Continued.

Area 610

Area 6408531 62013

Avg. Rate

wt.

Jan.

Feb.

-- ------- 2.10 5.40

-- ---- 6.62 1.28

ns ns ------- 0.00 0.00

-- ------- ns--ns n

0.00 0.00

-- ------ 0.00 0.00 0.66- - 12.64

-- n

ns--ns --

Sep.

- - --n---- 0.00 0.00

4.17 ns ns 5.08 --0.50 -- 6.55 ns ns

-- n--- ---- ns--ns ------.n - f-'

OJ

ns ns ------------ f-'

4.17 ns ns 5.08 -

0.64 --- 12.64 0.58 2.88 ns ns

Jan.

ns ns 55.00 ----4.00 nsns

6.70155.13 -- -- 32.47 10.39 32.88 7.94 94 58.26

ns6.93ns61.19 36.14 ---- ns8.39ns ---- ns

360.836.17 6.47 ns227.89 1,162.36 7.24 -- --

nsnsns

651.17 190.51 546 7.39 -- ns n

nsnsns

1,994.01 9.00 -- ns

--- ---

nsnns

Aug.

3.47-- 16.24 ----- - ns--ns -- nsnsns

- - --------- ns--ns ---- ns ns-- ------- ns-- ns ---- ns ns

6.95 --381 .64 --- --- ns--ns ---- - ns ns

4.85 -- 81.68 ns

----ns

216.11 138.31 ns32.88 9.44 nsns6.47 6.4884 ns129.83
Table 42.--Continued.

Area 610

Area 6314058 62013

Avg. Rate Rate

wt. wt. wt.

vessels (sablefish target)

Jan.

Mar. Feb.

- - ----- ns ns

52.04 214.748322 0.00 ns8.25 10.81 614.99 0.00 8.98 8.23 70227.21 ns 2,211.52 13.360

342.11 0.00 95.42 9.82 628 0.00 9.28 -- 67.39 --

nsnsns

ns -----nsns --nsnsns

-- --- --- ns--ns -- ns ns

- - -------- ns ns

--------ns- -- ns

Nov.

-- -- --------- I-'

OJ 

-- ---------- tIJ

52.04 283.22 1508 ns0.00 456.92 8.25 10.09 0.00 8.23 749 7.84150.15 ns 1,490.44 13.36

Jan.

-- ------ ns--ns ---- ns ns

-- -- ------ ns ns

-- -- ---- ns ns

598.82 165.23 12.64 9.12 1,313.08 8.153,622.12 13.36 -- ---- nsnsns

------ - - 2,618.7013.11 nsnsns--

ns

----

ns--------ns --

-- ---- ns--ns ---- ns ns

-- ---- ns--ns ---- ns ns

ns-----ns --ns

----

ns------ns --

-- -------- ns ns

--ns

--------ns - -

598.82 910.76 12.64 12.94 1,313.08 8.153,622.12 13.36 -- --

nsnsns
Table 42.--Continued.

Area 610

Rate Avg.

wt.

Area 620

Rate Avg.

wt.

Area 621

Rate Avg.

wt.

Area 630

Rate Avg.

wt.

Area 631

Rate Avg.

wt.

Area 640

Rate Avg.

wt.

Area 650

Rate Avg.

wt.

Area 680

Rate Avg.

wt.

Pot vessels (all target fisheries)

Jan. ns ns

ns ns

----nsns

ns --0.00 -- 3.33 0.00 1.53

nsns ns 4.19 4.00

--..ns

-- n

ns--ns -- 55.33 8.68

-- n

nsn ns -- 31.41 ns7.11ns

0.00 0.00 38.93 --n ns8.05ns

316.25 ns0.00 10.47 109.88 19.65 80.44 8.30 ns 0.00

16.62 5.00 0 ns44.82 5.32 401 7.77 0.007.86 3.66 000 ns36.01 702 3.27 4.47ns 0.00

.. n ------ 41.90 31.04 3.0058

-- --n -- nsnsns

)316.25 3.39 000 5.91 637 19.65 9.55 19.0 52.010.00

Dashes indicate area not fished.

ns = Fishing occurred but no sampling by observer.

~

(X)

w
184

50 "CO'N

170·00'W ~

1S0000'W 50 °OO'W

Longitude

I ,

'~~

I,,, I ,,

- Bycotch species:

Target Gear Quarter:type: Fishery: Year: \ ( 

I Alaska 

~ <t~- f·

CI>

"t)

$ r

0

..J •

20g meters

55 "CO'N ~r~_4-4 ~I--" ~~ -4-

CHIRIKor 620

50 ·OO'N

50000'N

SsoOO'N

SO·OO'N

SS·OO'N

50 ·OO'N

5S·00'N

5S·00'N

130000'W

Halibut (kg/ton)

o 0_0

1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

Halibut (kg/tan)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 °OO'W

CHIRIKor

620

2Q_9--FI)eters

50 "CO'N

55 "CO'N

55 "CO'N

50 "CO'N

170000'W 150 °OO'W 150 °OO'W 130000'W

Longitude

140 °OO'W

Figure 13.--Average incidence (kg./t) of Pacific halibut in the

U.S. domestic fisheries by quarter, target fishery,

gear type, and 112° latitude by 112° longitude areas

in the Gulf of Alaska region, 1990.
Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

:3 > 5 <- 10

4 > 10

65 <QO'N

60 <QO'N

20Qmeters

55 <QO'N

50 <QO'N

170 ·OO'W 160 ·OO'W

185

150 ·OO'W

Longitude

\

(

140·00'W 130 ·OO'W

65·00'N

60·00'N

55·00'N

50·00'N

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

:3 > 5 <- 10

4 > 10

65 <QO'N

60 <QO'N

55 <QO'N

50 <QO'N

2Q.Q'-n:1eters

170·00'W 160·00'W 150·00'W

Longitude

\

(

140 ·OO'W 130 ·OO'W

65·00'N

60·00'N

55 ·OO'N

50 ·OO'N

Figure 13.--Continued.
65 "OO'N

60 "OO'N

2015 meters

55 'GO'N

50 'GO'N

186

\

(

Halibut (k9/tan)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65·00'N

60·00'N

55·00'N

SO·OO'N

170·00'W 160·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

65 'GO'N

60 'GO'N

55 'GO'N

50 'GO'N

2a.c)·meters

CHIRIKOF

620

Halibut (k9/tan)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

5S·00'N

50·00'N

55 ·OO'N

50·00'N

170 ·OO'W 150 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130·00'W

Figure 13.--Continued.
187

, ,

'~~

,,, I ,

,

I

,

- Bycatch species: Halibut 1-6S·00'N

Halibut Pallock(k9/ton) 

. Bottam Trawl 0.0 0

Third Quarter <- 1 11990 > 1 <- 5

2 . 3

5 10

4 > 10 

~ Alaska

~

~ .~ •• .:I

r6O•OO'N 

, \,· # 

...;:. - .~ ..... ,; ~ "

~:;:;

~0 2Q.9-n:'!eters

SS"CO'NJ .... ~. -"~J

KODIAK / \.l YA'UTAI rSS·OO'N I 660 i····~ 

~ 0_" 630 650 .. ,. ".

.• ~{//.' .., 2

"''''';'.'

50 'OO'N~ I

~,

,

,,

I

,,

I

,,

I

, ~ 50 'OO'N

160SO43 ·OO'W

I ,

'~~

,I, I ,

,,

- Bycatch species: Halibut 1-6S·00'N

Halibut Pallack (k9/tan) 

. Battam Trawl o 0.0

Fourth Quarter <- 1 1

1990 > 1 <- 5

2 . 3

5 10 \ > 10 4 

(

ska

j <)~t c7~V1 '~~\,

r 60 ·OO'N #

·"

~

~

:J -- 2.Q.9·,rpeters

SS "CO'N J

~"-""'I

KODIAK / " , YA.UTAj I •• LSS·OO'N n ~\1\1lTlJY' IL

SO·OO'N

1SO·OO'W 130 ·OO'W

Longitude

SO "CO'N

Figure 13.--Continued.
5SaoO'N

50aoO'N

•

2QO-rpeters

55aoO'N

50aoO'N

188

,

(

Halibut (kg/ton)

o 0.0 , <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55 ·OO'N

50·00'N

55 ·OO'N

50·00'N

170·00'W 150 ·OO'W 150 °OO'W

Longitude

140 ·OO'W 130 ·OO'W

55aoO'N

50aoO'N

55aoO'N

50aoO'N

2Q_q .meters

,

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55 ·OO'N

50·00'N

55·00'N

50·00'N

170 ·OO'W 150·00'W 150000'W

Longitude

140 °OO'W 130000'W

Figure 13.--Continued.
189

55 ·OO'N

55 ·OO'N

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

Halibut

Other Species Bottom Trawl

Third Quarter

1990

,

(

• I

CHIRIKor

620

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

2Q.Q·.f'(Ieters

55 "CO'N

55 "CO'N

50 "CO'N

50"C0'Ni I' ~I ' , , , I ' , , , I • , , • I ' , , , I ' , , , I ' • , , I ' , , 'I j50·00'N

170·00'W 150·00'W 150·00'W 140·00'W 130·00'W

Longitude

55 I"~'I""I""I"" "CO'N~ ." ~ Bycatch species: Halibut I-55 ·OO'N

Target Fishery: Other Species Halibut (kg/ton)

Gear type: • Bottom Trawl 0 0.0

Quarter: Fourth Quarter ~ <-1 1 5

Year: 1990'.3 ~ 5 ~: 10 , 4 > 10

. (

Alaska

'"

6O"0'N~ ~ <)~ ~M~t c7/ ~4 V~/ .:-~~--- .~.....:-.L?'\~\ , . I'OOOO'N ~ '0

.;

:g-' . 200"·meters

55"C0'NJ--' ~'N"_~I. ~.~ ~IK:/DIAK ~""UTA 660 -.." " lSS•00'N 630 650 ,- - '

,t57 . CHIRIKor

620

50 "CO'N SO·OO'N

170 ·OO'W 150·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

Figure 13.--Continued.
65 COO'N

60 COO'N

20.9' 'r'I'Ieters

55 COO'N

50 COO'N

190

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65 ·OO'N

60·00'N

55·00'N

50·00'N

170·00'W 1 60 ·OO'W 150·00'W

Longitude

140 ·OO'W 1 30 ·OO'W

1 30 ·OO'W

65 COO'N

60 COO'N

55 COO'N

50 COO'N

20§--f"!1eters

170 ·OO'W

CHIRIKor

620

1 60 ·OO'W 1 50 ·OO'W

Longitude

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 ·OO'W

65 ·OO'N

60·00'N

55·00'N

50·00'N

Figure 13.--Continued.
191

55 ·OO'N

55°00'N

65·00'N

130 ·OO'W

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10 \

(

Halibut

Pollock

Midwater Trawl

Third Quarter

1990

150·00'W

Longitude

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

160 ·OO'W

200- meters

170 ·OO'W

65 "OO'N

55 "OO'N

60 "00' N

50 "OO'N

50 "OO'N

170 ·OO'W L....,-r

1506 ·OO'W

Longitude

I ,

'~'~

I ,

,,I,

,

,

,

,,,

- Bycatch species: Halibut

Target Fishery:

Pollock

Gear type:

. Midwater Trawl

Quarter:

Fourth Quarter

Year:

1990

\ ( 

I Alaska 

~<t.~f·-

v

"

~:g

-'

~ ZJ}G~,t'"

55 "OO'N

oJ_" ~6"-{) I

CHIR(KOF

:~/o-0

620

Figure 13.--Continued.
55 'CO'N

50 'CO'N

Q)

"0

.3

:;:;

o

-'

55 'CO'N

50 'CO'N

20§·meters

192

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10 4 > 10

55·00'N

55·00'N

50·00'N

170 ·OOW 150 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

130 ·OO'W

55 'CO'N

50 'CO'N

55 'CO'N

50 'CO'N

2Q.9-FTJeters

170·00'W 150 ·OO'W 150 ·OO'W

Longitude

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 ·OOW

55 ·OO'N

50·00'N

55 ·OO'N

50·00'N

Figure 13.--Continued.
55 "OO'N

50 "OO'N

55 "OO'N

50 "OO'N

200· meters

193

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

..

Halibut

Cod

Longline

First Quarter

1990

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

55·00'N

50·00'N

55 ·OO'N

50 ·OO'N

170·00'W 150·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

130 ·OO'W

55 "OO'N

50 "OO'N

55 "OO'N

50 "OO'N

200r1")eters

170·00'W 150·00'W 150 ·OO'W

Longitude

\

(

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140·00'W

55·00'N

50·00'N

55 ·OO'N

50·00'N

Figure 13.--Continued.
194

55 COO'N

50 COO'N

55 COO'N

50 COO'N

20gmeters

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

I

Halibut

Cod

Langline

Third Quarter

1990

55·00'N

Halibut (kg/tan)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

50·00'N

50·00'N

170·00'W 150·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

55 COO'N

50 COO'N

55 COO'N

50 COO'N

200 meters

\

(

Halibut (kg/ton)

o 0.0 1 <-, 2 > 1 <- 5

3 > 5 <- 10

4 > 10

55·00'N

50·00'N

55 ·OO'N

50·00'N

170·00'W 150 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

Figure 13.--Continued.
195

1st quarter--no sampling.

60 ·OO'N

55·00'N

65 ·OO'N

50·00'N

130·00'W

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 ·OO'W

\

(

Halibut

Sablefish

Langline

First Quarter

1990

150 ·OO'W

Longitude

Bycatch species:

Target Fishery:

Gear type:

Quarter:

Year:

160 ·OO'W

2Qg'-n;1eters

170 ·OO'W

65 "CO'N

55 "CO'N

60 "CO'N

50 "CO'N

65 ·OO'N

50·00'N

60·00'N

55·00'N

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

Halibut

Sablefish

Longline

Second Quarter

1990 •

\

(

3rd quarter--No

4th quarter--No

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

~ot-.,.2 3'414 0

··4'44

•.. 3"

,,1i,~;.:.4·4 4 CHIRIKOF • ~O

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

170·00'W 160 ·OO'W 150 ·OO'W

Longitude

140·00'W 130·00'W

Figure 13.--Continued.
65 "CO'N

60 "CO'N

200 meters

55 "CO'N

CHIRIKOF

620

196

\

(

Halibut (k9/tan)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

65 ·OO'N

55·00'N

130 ·OO'W

50 "CO'N

65 "CO'N

60 "CO'N

55 "CO'N

50 "CO'N

170 ·OO'W

•

lOO-meters

170·00'W

160·00'W

160 ·OO'W

150 ·OO'W

Longitude

150 ·OO'W

Longitude

Quarter . \

(

130 ·OO'W

Halibut (k9/ton)

o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

140 ·OO'W

50·00'N

65 ·OO'N

60·00'N

55·00'N

50·00'N

Figure 13.--Continued.
197

65 «QO'N

60 «QO'N

55 «QO'N

2Q.Q·''!1eters

Halibut (kg/ton)

o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65 ·OO'N

60·00'N

55 ·OO'N

50 "CO'N ~

, ~I ' , , , I r50 ·OO'N 

I I I I• I • I J I I I I I j • I I I I I

, I I ,I II

150·00'W 140·00'W 130·00'W 60 ·OO'W

I

, '-1;;' I , , , , I , , , , I , , , , eo ~ Bycatch species:

Halibut 1-65·00'N

Halibut All (kg/ton)

. Pots o 0.0

Fourth Quarter <- 1 1

. 1990 > 2 1 <- 5

3 > 5 10 

> 10 4 

Alaska

~ ~~'~ ~60'00'N

. ~" -L............. 0' ~~':+-'<~I, ..-;.. ~ ; \' 

"U

:;:; .3-..J0

~ 200_.'."

-~ ..- ,"- ~ •• ~•.,: •. j

~55.00'N KOOIAK / \1 EAST t ,.~'~ 

..• --'

YAKUTA 630660 i\...'. 

650· .. ".

nt

'::' 50'00'N

150·00'W 130·00'W 406 ·OO'W

13.--Continued.
Table 43.--Estimated bycatch and mortality* of Pacific halibut In metric tons (t) by u.s. domestic groundflsh vessels In the Gulf of

Alaska region by NPFMC area and gear type, 1990.

(Dashes indicate area not fished.)

Total bycatch (t)

ea

Area Area Percent by

631 640 630 6508 620 621Total 610 gear type

2,459.15 166.55 29.63 966.78 2904 4,336.33 98.05 13.51 35.7X 573.61

22.92 0.13 0.03 0.02 0.08 1.19 -- -- 24.38 0.2):

4,039.88 232.27 2,026.16 445.28 7,501.89 222.83 1.562.86 61. 7X 531.06

247.22 28.19 0.64 9.66 3.74 -- --289.45 2.4):

6,769.17 2,055.19 398.95 1,440.28 12,152.05 252.46 100.28 2611 1,109.61

55.7X 16.9X 11.9X 33): 2.1X 0.2): 0.8): 9.1):

rea

Area Percent by

680 620 630 631405 621Total 610 gear type

1,229.58 83.28 14.1 483.39 14.52 2,168.17 49.036.76 68.0): 286.81

11.46 0027 0.01 0.04 0.59 -- - - 12.19 0.4):

525.18 309 263.40 5789 28.97 0.20 0.37 30.6): 975.25 69.04 •....

29.67 3.38 0.08 -

1.16 - 0.45 ----34.73 1.1): \D

OJ 

1113.54 ,795277.92 544.67 3,190.33 43.78 49.32 .898.33 356.89

56.3X 3.6): 87X 17.1X 1.4X 0.3X 1.5): 11.2X

trawl vessels--50X, longllne vessels--13X, and pot vessels--12):.
199

ch and Pacific halibut catch and mortality (in metric tons (t» by target

fishery and area in the Gulf of Alaska region, 1990.

Pacific halibut bycatch

Pacific halibut mortality

% of kg per %

t of

within Weight total ground-Weightbycatch area area(t) fish (t)catchArea·

<0.1% 0.3% 0.1%1.21 20.9 420 2.4357.8Eastern

21.5% 12.4% 515.38 16.2% 8.5% 22,979.2 1,031.43 22.444.9 Central

11.0% 7.1% 0.6% 39.33 1.2%2,047.6 38.5 19.2 78.83

--25,084.6 1,112.69 44.4 9.2% 555.9222.2 17.4% --

nfnfnfnfnf nf

0.1% <0.1% 0.1% 0.1% 45,267.1 2.19 <0.1Central 4.38

0.0% <0.1% 0.1%0.21 <0. 6,321.2 0.10.42

51,588.3 0.1 4.80 <0.1% -- 2.40 <0.1 0.1% --

nfnfnfnfnf nfEastern1.1% 06 0.4%8 26.34 18,406.7 2.9 1.453.22 Central

0.1% <0.1%0.39 0.94 0.78 884.8

19,291.5 2.854.00 0.4% --26.731.4 0.8% --

<0.1% 0.1% 0.0%20.1 0.28 10.2 0.5527.4Eastern

31.3% 18.0% 12.4% 235 750.74 44,106.0 1,501.49 17.0 34.0

37.3% 24.0% 133.08 2.2% 4 32,277.9 266. 8.2 4.1 17

14.6% --884.10 --76,411.3 1,768.21 11.6 23.1 27.7%

0.7% 0.9% 0.2%1 3.00 12.0 23.09 92.5 249.5

1.0% 2.3% 0.8% 16 24.95 3,040.2 191.93 63.1 8.219.4% 7.9% 0.9% 28.02 1.8%2,451.4 11.4 215.48 87.9

5,741.1 430.50 75.0 3.5% --55.979.7 1.8% --

nfnfnfnfnf nfEastern

1.4% 3.4% 1.1% 24 34.28 5,478.8 285.71 52.1 6.3

0.1% <0.1% 0.3%0.45 23.4 2.8 3.74 159.7

5,638.5 289.45 51.3 2.4% --34.736.2 1.1% --

2.9% 0.9% 0.2%4 12.6125.21 28.7 143 879.5Eastern

0.9% 0.5% 0.4%7 21.88 1,215.5 36.0 18.0 43.78 Central

3.6% 23 0.2%4 12.7025.40 33.1 66.2 383.5

-- 2,478.5 38.1 94.39 0.8% 1.5% --47.1919.0

72.0% 89.0% 19.8% 313.24 9.8% 11,468.0 2,409.55 27.3 210.1Eastern23.1% 51.2% 35.1% 17.4% 554.96 10,855.3 4,268.94 51.1 393.3 Central

11.5% 28.4% 41.00 2.6% 131,868.8 21.9 168.8 315.36

24,192.1 6,993.85 289.1 57.6%-- 909.20 -- 37.6 28.5%

24.1% 9.1% 104.88 2.0% 3.3%9,805.1 245.73 25.1 107 Eastern

19.5% 11.5% 467.49 14.7% 7.9% 15,840.4 60.3 295 955.00 Central

28.5% 18.3% 101. 1.7% 328,325.1 7203.43 24.4 122

33,970.6 1,404.16 41.3 11.6% -- 674.0919.8 21.1% --

22,487.3 2,706.56 120.4Eastern 22.3%-- 435.2219.4 13.6% --

167,189.2 8,335.88 49.9 Central 68.6% -- 2,398.21 14.3 75.2% --

54,720.0 1,109.61 20.3 9.1% -- 356.90 6.5 11.2% --

--244,396.5 12,152.05 49.7 -- 3,190.33 13.1

, 630, and 631;

and

nf

= No fishing.
Table 45.--Monthly bycatch rates (number of crab per metric ton of catch and average weight (kg» of Chionoecetes ~ taken in

u.s. domestic groundfish fisheries in the Gulf of Alaska region by gear type and target fishery, 1990.

Area 610

Area 65031 620483

Avg.Rate

wt.

m trawl (flatfish target)

Jan.

0.610.593 -- -- -- 0.597 0.87

0.290.277 -- -- -- 1.053 0.51-- -- u ns ns

0.8100 0.000 0.083 -- --2.042 0.55-- -- -- 0.000 0.00

0.26 1.60 0.002 0.074 -- --0.016 0.33 0.000-- 0.00 0.0000.7269 0.00013 0.04 0.000 -- --0.038 0.7700 0.000

July

0.30 0.256000 0.000 -- ---- -- 0.000 0.00

0.3208 0.20 11751 0.026285 0.304 1196 0.900

10.718 0.300 3.400 00 38.467 0.7543

13.792 0.008213 0.0 0.063344 0.43 0.35 0.000 -- ---- -- tv

0.004 0.26 0.000 3271 0.902 0.00

0

--u ---- -- 0

Year

0.385577 0.00238 0.46 0.030578 0.00097 6.29 0038 0.460

Jan.

-- ---- -- 0.000 0.00 0.000-- ---- -- 0.000 0.00

0.000.000 -- ---- -- 0.000 0.00

0.000 -- -- -- 0.000 0.00

---- ----

July

-- --0.000 0.00-- --0.762 0.60

0.00.000 -- --- -- 0.018 0.003 1.9 4345 0.000

0.000 -- --0.000 0.51 0.565

0.100.001 -- --0.000 0.008 0.007

Dec. Yar

0.1003 0.57 0.337000 0.22 0.001
Table 45.--Continued.

Area 610

Area 6405213 680 630

Avg.Rate

wt.

Jan.

9.582 ns0.0047 ns0.000 --

ns -- -- ns ns

0.000 0.653600 0.000 1.776 0.405 --ns --

ns ns

0.254400 0.317 0.00063 0.021 1315 0.077

0.001 ns0.00145 0.2 150 0.0032 0.02801 0.287 10nsns

0.039 ns0.375400 0.836 0.50200 0.14800 0.000 ns

0.000 --

---- -- ns ns

0.228613 0.32 0.229003 0.16 0.003 -- --0.000 0.00 0.000

0.2685 0.12 100 0.56 0.01165 0.00041 1.72 0.048 ns ns

0.2612 0.5 0.00083 0.724 1006 0.0000.15082 0.3700 0.0008 0.17266 0.027

0.6905 0.000 0.349 1.578

N

---- -- -- a 

ns ns ----------- •.....

0.34838 0.002149 0.6 0.107519 0.050062 0.49 0.129

Jan.

0.00 0.000 -- --0.000 0.000

0.000 -- --0.000 0.000

Apr.

0.000 -- --0.025 0.1500 0.000

-- -- -- 0.000 0.00

-- --

ns--ns --0.000 0.00-- --

-- ---- -- 0.000 0.00

-- ---- -- 0.000 0.00

ns ns ------ 0.000 0.00 0.000

0.000 -- -- -- <0.001 ns0.80ns

Dec. Yar

0.007 ns<0.001 0.1500 0.000 0.80 0.000 ns
Table 45.--Continued.

Area 610

Area 6405318 62013

Avg.Rate

wt. wt.

Jan.

Feb.

-- --n -- 1.665 0.50

--

---- -- 0.000 0.00

ns ns --- ----- 0.000 0.00

-- -- -- ns0.000 --ns 0.00-- --- --n 0.000 0.00-- --

-- --

ns--ns --

Sep.

-- --- -- 0.000 0.00

ns 0.000 ns --0.000 -- ns0.00ns !\) 

.. -- ---- -- ns--ns -- ---

0 

!\)

----ns----n -

ns0.00 0.000 ns --0.024 -- 0.000 ns0.005ns

Jan.

ns ns 0.917 ----ns 0.89ns

0.00 0.000 -- --0.256 1.40723 0.06259

ns1.15 0.015 ns --0.011 -- ns1.85ns ----ns

0.667 0.6900 0.000 0.000 ns -- --ns nsns

0.000 0.0063 0.201 -- ns --

ns nsns

0.00 0.000 -- --- -- ns nsns

Aug.

0.00 0.000 -- --- -- ns--ns ---- -- ns nsns

-- ---- -- ns--ns --ns --ns

-- ---- -- ns--ns -- ns ns

0.70 0.629 -- ---- -- ns--ns -- -- ns ns

0.39 4.277 -- ---- -- ns ns

0.414 ns0.86 0.6790 17 0.192206 ns0.026 nsns
Table 45.--continued.

Area 610

Area Area 64052 63018 621

Avg.Rate

wt. wt.

Jan.

Mar. Feb.

-- ---n - ----n - ns ns

0.040 ns0.008496 0.0006 0.000 ns

0.000 n --

ns nsns

ns ------nsns -- nsns

-- ----n --- ns--ns n-- -- ns ns

-- ---- --n ns ns-- --- n-- ns ns-- ---n - ---.---- - ----nn--- n-.--- N

0 n-- --.---- -- W

0.040 ns0.8400 0.96 0.0020 0.000 ns

Jan.

-- ---- n-- ns--ns -- -- ns ns

-- ----- -- ns ns

.- ----n .---- ns ns

0.00 0.000 0.000 -- ---- -- ns nsns

-- ---- .--- 0.000 0.00 ns nsns-. - - --n ---- ns.---ns -- ns ns

- - --- .nn ns--ns ---- -- ns ns

-- ---- ---- ns.-ns -- n ns ns-- -- ---- ns--ns ..-- -- ns ns-- ---- ---- ns--ns ---- -- ns ns-- --nn--.----- - ns ns

-. ---- --n-- ns ns

0.00 0.000 0.000 .- --

ns nsns
Table 45.··Continued.

Area 610

Ares Area 631504 620183Avg.Rste

wt.

Jan.

ns ns

ns .-.-ns

ns --0.000 -- 0.4300 0.284

ns ns ns 0.042 --.-ns 0.30

-...

ns0.000 --ns-- 0.00

--

ns3.376 -.ns.. ns0.64ns

12.085 0.37 .-9.147 .- ns1.13ns171.480 ns12.427 0.2300 0.000 0.47 5.02 045 ns

8.728 0.00515 8.201 000 0.000

0.102 ns0.36 0.803 6.383 127 0.000 ns

.--.0.000 - --... 27.896 0.00 0.42

..-

ns- ns

---ns... 

17.184 0.42 0.290052 4.948 0000 1.79 0.48 6.129

Dashes Indicate area not fished.

ns = Fishing occurred but no sampling by observer.

IVo

~
Table 46.--Honthly bycatch rates (nt.ll1berof crab per metric ton of catch and average weight (kg» of "other" snow (Tanner) crabs·

taken in u.s. domestic groundfish fisheries in the Gulf of Alaska region by gear type and target fishery, 1990.

Area 610

Area 650314 62803

Avg.Rate

wt.

om trawl (flatfish target)

Jan.

0.00 0.000 -- - - -- 0.000 0.00

0.000 -- --0.000 1.19 0.020 u -- -- ns ns0.00 0.000 0.000 -- - -0.000 0.000

0.2580 0.50800 0.11 0.000 -- --0.020 0.00 12 0.000

0.88 0.0005 0.000 -- --0.090 0.00 0.84 0.000

July

0.00 0.000 0.000 -- --0.000 0.000

0.660.1130.000 -- -- tv

0.00 0.000 0.000 -- ---- ---- 00.00 0.000 0.000 U1

Year

0.256600 0.996 0.279000 0.42005 0.006

Jan.

-- -- -- 0.000 0.00 0.000

- - ----- -- 0.000 0.00

0.000 -- --u -- 0.000 0.00

0.000.000

-

0.000 - - - 0.00-- --

July

-- --0.000 0.00-- --

0.000 -- ---- -- 0.000 0.00-- --

0.000 -- -- -- 0.000 0.00

0.500.001 -- --0.000 0.00 0.000

Dec. Yar

0.00 0.50 0.000 0.001
Table 46.--Continued.

Area 610

Area 64058 6312 603

Avg.Rate

wt. wt.

Jan.

0.000 ns0.00 ns0.000 ns -- eon n ns ns

0.000 ns0.00 0.000 0.000 --ns -- ns ns

0.07900 ns0.008 0.54 0.0010 0.000 nsns

0.030 ns0.30602 0.34300 0.03100 0.02138 0.003 ns0.146 ns0.52 0.00 0.68 0.0004 0.000 0.000 ns

0.000 -- ---- n ns ns

0.180035 0.56 0.03300 0.04 0.213 -- --0.000 0.00 0.000

ns0.3109 0.011 0.003 nsns0.00 0.000 0.000 ns

0.31 0.00 0.000 0.000 0.0190.13 0.000 t\J

-- --eoeo eo---- -- 0 

ns ns -----------n -

~

<0.001 0.20052 0.33 0.58 0.00068 0.00035 0.0021 0.30 0.030

Jan.

0.000.000 -- --0.000 0.000

0.000 -- --0.000 0.000

Apr.

0.000 -- --0.000 0.000

-- ---- -- 0.000 0.00

ns0.000 --ns-- 0.00-- 0.00

--

--- 0.000 0.00

-- -- 0.000 0.00

ns ns --0.000 ---- 0.00 0.00 0.000

0.000 -- -- -- 0.000 ns0.00ns

Dec. Yar

0.000 ns0.00 0.000 0.000 ns
Table 46.--Continued.

Area 610 -

Area 6405318 620

Avg.Rate

wt.

Jan.

Feb.

-- --- - -- 0.000 0.00

-- ---- -- 0.000 0.00

ns ns --0.000 ---- 0.00

-- -- ns--ns --0.000 0.00-- --- -- 0.000 0.00-- --

-- --

nsns-- ns

Sep.

-- ---0.000 -- 0.00

ns 0.000 0.000 ns --0.000 -- ns0.00ns

-- -- --- ns--ns --- --- I\J

0 ns ns ------- -...J

ns0.000.000 ns -

0.000 --- 0.000 ns0.00ns

Jan.

ns ns 0.000 --0.00 --nsns

0.000 -- --0.000 0.000

ns 0.000 ns --0.000 -- ns0.00ns ----ns

0.000 0.00 0.000 0.000 ns -- --nsns nsns

0.000 0.00 0.000 -- ns ns--ns nsns

0.000.000 -- -- --- nsns nsns

Aug.

0.00.000 - - -- -- ns--ns -- -- nsns nsns

-- ----- ---- ns-ns -- -- ns ns

- - -- -- -- ns--ns --- ns ns

0.000.000 -- ---- -- ns--ns -- -- ns ns

0.000.000 -- -- -- ns ns

0.000 ns0.00 0.000 ns0.000 nsns
Table 46.--Continued.

Area 610

Area Area 6403158 63021

Avg.Rate

wt.

Jan.

Feb. Mar.

-- ------- ----- ns ns

0.9475 0.042 0.020 -- n 0.0455 ns0.8900 12 0.58000 0.029ns

0.3675 0.044 0.036 -- --

ns nsns

ns ------nsns -- nsns

-- --n - ---- ns-- ns --- -- ns ns

-- ----nn --n ns ns-- n--n ----

n--- - ns ns

Nov.

-- -- ---n - ------

n I\J

0 -- n-- -- ro

0.055 ns0.758900 0.68 120 0.59 0.00022 0.00044 0.029 0.027 ns

Jan.

-- --nn -- ns--ns -- -- ns ns

-- ---- ---- ns ns

- - ---- -- ns ns

0.950069 0.00 0.10400 0.32 0.000 -- --

ns0.382 0.00 115 0.000ns

0.80 0.40 0.046 0.175 -- --0.063 0.45-- --ns nsns

-- ----

ns

-------ns ns

- - --n- --- ns--ns -- ns ns

-- n---- ---- ns--ns -- -- ns ns-- n---- -- ns--ns -- -- ns ns-- ---- -- ns--ns -- ns ns

0.00 0.000 -- ---- ---- ns ns

-- ----- ---- ns ns

0.880059 0.4 0.00067 0.040 O.OOS -- --0.382 ns0.00 1.15 0.000ns
Table 46.--Continued.

Area 610

Area 6405318 620

Avg.Rate

wt.

Jan.

ns ns

ns ----ns

ns --0.000 -- 0.00 0.000

ns ns ns 0.000 -

0.00

---ns

-- --

ns0.000 --ns 0.00ns0.000 --ns-- ns0.00ns

ns0.11.ns718 --0.000 -- ns0.00ns

ns1.10 0.00065 0.000 ns

0.000 0.00 0.000 0.0000.000 ns0.000 0.000 ns

-- --n ---- 0.000 0.00 0.000-- --n ---- ns nsns

0.00 11 0.1 0.0008 0.356

*Species include Chionoecetes 2Q!1!2, £. anQulatus, and £. tanner!.

Dashes indicate areas not fished.

ns = Fishing occurred but no sampling by observer.

~

o

\D
210

I .

'~~

I I

I.

•

..I

, ~

Bycatch species: Bairdi Tonner !-55·00·N

BairdiFlatfish Tanner (no/ton). Bottom Trawl o 0.0First Quarter <- 1 1

. 1990 > 1 <- 102

3 > 10 <- 25 \ > 25 4 (

~

r50.00'N

"

~"'0

....J 2QQ-.f!Ieters

55 'OO'NJ_ ..~ c:R!".' N'~L·./·/ I

KOOIAK/

'\l mUTAl660 r55·00·N 1'<~ 650 .' .,. ,

. ~ .../ .._.. I CHIRIKor

50~O'Nr~~-~, .

,

,

I

...,

I

,..

I

~50'OON

140530 ·OO·W ·OO·W

I ,

'~~

1 ,

,

1.

.

.

1

I

,

.,.

~

Bycatch species: Bairdi Tonner !-55·00·N

BairdiFlatfish Tanner (no/ton)

. Bottom Trawl o 0.0Second Quarter <- 1 1

. 1990 2 > 1 <- 10

3

10 <- 25 \ > 25 4

(

Alaska

O'Nj ~

<) .~.. ' ~ r "\0, .w.-r

r50.00'N 

\ ~ . M~ ----0 --" ~

ft ,~ 

"

;

~

....J 2Q.9--~eters

55 'OO'NJ ~. ""_\IL~'U • K:/ I J55.00'N

CHIRIKor

620/ UUI:'lUt.

...; ! ,. .' ~.-

'~I

~-:150.00'N

,. . I

,..,.

I

11503450 ·OO·W ·OO·W

Figure 14.--Average incidence (no./t) of g. bairdi Tanner crab in

the u.s. domestic fisheries by quarter, target fishery,

gear type, and 1/2· latitude by 1/2· longitude areas

in the Gulf of Alaska region, 1990.
211

Boirdi Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

;3 > 10 <- 25

4 > 25

55 <QO'N

50 ,{)O'N

2Q.9·meters

55 <QO'N

50 <QO'N

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

CHIRIKOF

620

150 ·OO'W

Bairdi Tonner

Flatfish

Bottom Trawl

Third Quarter

1990

KODIAK

630

150·00'W

Longitude

140 ·OO'W 130 ·OO'W

55·00'N

50·00'N

55·00'N

50·00'N

65,{)0'N

50 <QO'N

2QQ'-meters

55 <QO'N

50 <QO'N

Boirdi Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

;3 > 10 <- 25

4 > 25

55·00'N

50·00'N

55 ·OO'N

50·00'N

170·00'W

Figure 14.--Continued.

150·00'W 150 ·OO'W

Longitude

140 ·OO'W 130·00'W
65 "GO'N

60 "GO'N

55 "GO'N

2Q9-."eters

212

\

f

Boird; Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25 4 > 25

65·00'N

60·00'N

55·00'N

50 "GO'N-1 '~I

~50·00'N

., . I.

I

,

I

,

I

.

I

.

150436 ·OO'W

I

,

,.I,

,

,,I

,

.,

r

,

,I

~ 65 ·OO'N 

~ '(""... Bycatch species: Bairdi Tonner

get Fishery:

Boirdi Pollock Tonner (no/ton)

. Bottom Trawl o 0.0Second Quarter <- 1 1

. 1990 2 > 1 <- 10

3 10 <- 25 

> 25 4 

.

V kf cf. r6O""o'" 

."t)~ ~ :g...J 2Q_9--meters

55 "GO'N~

"..____~. w"~I"/

KODIAK / "'t YAKUUT r55•OO'N I 660 i"':'~ 630 

. · . 650 ..••• 

.~ .

..tfd/#;···· CHIRIKOF 

620 ,..,.:"

... ".

'~I

~50·00'N

,., , I.

II

,.,

I

1160·00'W 5043 ·OO'W

14.--Continued.
50 ·OO'N

55 ·OO'N

50·00'N

55·00'N

55·00'N

130 ·OO'W

Bairdi Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

Bairdi Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

3 > 10 <- 25 4 > 25

150·00'W

Longitude

160 ·OO'W

50 "CO'N

213

I ,

'~~

I ,

,,I,

,

,

,

,

- Bycatch species:

Target Quarter: Gear type: Fishery: Year: \ I Alaska L' ( 

.•.•... <t..~Z·

•..

"U

~"0

-J 2Q.9·-f11eters

55 "CO'Ni

t#'-OJ--~I

i //0

,'":..' ...• ---

~._:'f~~:L.···---

5DWN[ 170 ·OO'W

15050 ·OO'W

Longitude

I ,

'~~

I ,

,I,,

,

,

,

- Bycatch species:

Quarter: Year: Target Gear type: Fishery: \ ( 

I Alaska 

~<t..~f· -

•..

"U~

~-J 2Q.9··-I'IJeters

55 'DD'Nl U- vI'

~. :":.,0"0 _ ,~ 0-00 CHIRIKor 620

Figure 14.--Continued.
214

I

I

,

,I

I

I,

,

,

I

~65·00'N 

~ '-;e' Bycatch species: Bairdi Tonner

Target Fishery:

BairdiOther TonnerSpecies (no/ton)

. Bottom Trawl 0.0 0

First Quarter <- 1 1

. 1990 > 1 <- 102

3 > 10 <- 25

, > 25 4 

( Alaska

N-I

'-\ '\)y.~ .a

/:/J,-Jtl:~ ~60.00'N

A..

"

.3

:g....J 2Q.9'l'1"Ieters

, ~. ')0;'10

\ I EAST ~ o·~',,~lt L55.00'N /

' .. ' ..•. I:I",~0 .. 0"0 0 KODIAK

YAKUTA 660 ~\. ..• 

...~ 1)_.1'0-0 . js;) /-~.() 0 620 CHIRIKor

~

UUI:otIUt. 'rilL.

'~I

~':150.00'N

.I . I

.

I

.

I

,..

I

,,

I

.I

I130·00'W 140·00'W 506 ·OO'W

I

,

,I

,

,,I,,I

~65·00'N 

~ '-;e' Bycatch species: Bairdi Tonner

Target Fishery:

BairdiOther TonnerSpecies (no/ton)

. Bottom Trawl 0.0 0

Second Quarter <- 1 1

. 1990 2 > 1 <- 10

3 > 10 <- 25

, > 25 4 ( 

Alaska

N-I

'-\ '\)y.;n; .a /:/J,-J~~ 

~60.00'N

A..

't)

~ ~ I /"T'~~ O.~·u u WEST YAKUTAT

.• 640 

20,Q-'l'1"Ieters

~·3 .o,oil

\ I EAST ~ O(··~\.~l L55.00'N/ KODIAK YAKUTA .. -'660~'I",I~ ,,;.,,\ _?VI " • J..

SHUMAGIN

610

50 "OO'N 50·00'N

170·00'W

Figure 14.--Continued.

160 ·OO'W 150·00'W

Longitude

140·00'W 130 ·OO'W
65 "OO'N

60 "OO'N

20.9 meters

55 "OO'N

50 "OO'N

215

\

(

Bairdi Tanner (no/ton) o 0.0 1 <- I

2 > 1 <- 10

:5 > 10 <- 25 4 > 25

65·00'N

60·00'N

55 ·OO'N

50·00'N

170 ·OO'W 160 ·OO'W 150 ·OO'W

Longitude

140·00'W 130 ·OO'W

65 "OO'N

60 "OO'N

209 meters

55 "OO'N

50 "OO'N

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

..

Bairdi Tonner

Other Species Bottom Trawl

Fourth Quarter

1990

\

(

Baird; Tanner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

:5 > 10 <- 25

4 > 25

65·00'N

60·00'N

55·00'N

50·00'N

170·00'W

Figure 14.--Continued.

160 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130·00'W
55 "CO'N

50 "CO'N

2.0.9 -meters

55 "CO'N

216

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

Bairdi Tonner

All

Pots

First Quarter

1990

55 ·OO'N

Baird; Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

4 > 25

50·00'N

55 ·OO'N

50 "CO'N-1 '~I

t- 50 ·OO'N

,,, , I

,

I

,,

130540 ·OO'W

I

,

,I,,

,

I,

,

,I

~55·00'N 

d"- 0,;'" Bycatch species: Bairdi Tonner

Target Fishery:

Baird; All Tonner (no/ton)

. Pots o 0.0

Second Quarter <- 1 1

. 1990 2 > 1 <- 10

.3

10 <- 25

4

25 ( 

Alaska

N-I

l '> •• ~ '- .:t /';;)~~J~~ 

~50·00'N

A-

-.:>:J

~-' . 2.Q.9·-fI1eters

~i

..

-j /\ I EAST ~ L55.00'N ":"~~j KODIAK YAK UTA 660 -t.\. .. ,

50 "CO'N

170·00'W

Figure 14.--Continued.

150·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

50·00'N
217

55 ·OO'N

50·00'N

60·00'N

55 ·OO'N

65 ·OO'N

65·00'N

50 ·OO'N

Baird; Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

J > 10 <- 25

4 > 25

Baird; Tonner (no/ton) o 0.0 1 <- 1

2 > 1 <- 10

J > 10 <- 25

4 > 25

\

(

CHIRIKor

620

•

2Q.9·meters

60 'DO'N

55 'DO'N

50 'DO'N

50 'DO'N

170 ·OO'W L..,-

150·00'W 160 ·OO'W

Longitude

I ,

'~~

I ,,I

,

,

,

,

- Bycatch species: Bairdi Tanner

Target Fishery:

All

Gear type: . Pots

Quarter:

Fourth Quarter

Year:

1990

\ 

(

Alaska I 

~<t.~ - "j'. 

•..

--0::J

...J "0

r~m.t."

55 'DO'N .'~I

&-'" •.. ~FY~. CHIRIKor 620

65 'DO'N

•..

-02

:;:;

o

...J

1 70 ·OO'W 160 ·OO'W 150·00'W

Longitude

140·00'W 130·00'W

Figure 14.--Continued.
218

50·00'N

55·00'N

50·00'N

50·00'N

55·00'N

, 30 ·OO'W

55 ·OO'N

55·00'N

Other Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

:3 > 10 <- 25

4 > 25

Other Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

:3 > 10 <- 25

4 > 25 \

(

2Q,g.-f1)eters

50 COO'N

55 COO'N

55 COO'N

50 COO'N

50 COO'N

I I

I~I

I ,,

I

,,

150 ·OO'W ·OO'W

Longitude

I ,

'~~

I ,

,I

,

I,

,

,

- Bycatch species:

Target Quarter: Gear type: Fishery: Year: 

\

(

laskaI 

~ "L~ 4 /.-

Q)

"

~

:s

-' 2Q,9'-f1)eters I 55 COO'N

170·00'W , 50 ·OO'W , 50 ·OO'W

Longitude

, 40 ·OO'W '30 ·OO'W

Figure 15.--Average incidence (no./t) of "other" Tanner crab in

the u.s. domestic fisheries by quarter, target fishery,

gear type, and 1/2· latitude by 1/2· longitude areas

in the Gulf of Alaska region, 1990.
65 <QO'N

60 <QO'N

2Q§'r'!1eters

55 <QO'N

50 <QO'N

219

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

.

Alaska

Other Tonner

Flatfish

Bottom Trawl

Third Quarter

1990

\

(

Other Tanner o 0.0(na/tan) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65'00'N

60'00'N

55 'OO'N

50 'OO'N

170 'OO'W 160 'OO'W 150 'OO'W

Longitude

140'00'W 1 30 'OO'W

65 <QO'N

60 <QO'N

CI>

"

.;

c-'

55 <QO'N

·2Q.Q·-fl')eters

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

Other Tonner

Flatfish

Bottom Trawl

Fourth Quarter

1990

\

(

Other Tanner o 0.0(na/tan)

, <-, 2 > 1 <- 10

3 > 10 <- 25

4 > 25

65'00'N

60'00'N

55 'OO'N

50 <QO'N

170'00'W 160 'OO'W 150'00'W

Longitude

140 'OO'W 130 'OO'W

50'00'N

Figure 15.--Continued.
65 "CO'N

60 "CO'N

-2Q.g·.rpeters

55 "CO' N

50 "CO'N

220

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

.

Alaska

Other Tonner

Pollock

Bottom Trawl

First Quarter

1990

,

(

55·00'N

Other Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

55 ·OO'N

50·00'N

170000'W 160000'W 150000'W

Longitude

140000'W 130 °OO'W

65 "CO'N

60 "CO'N

20.g"rpeters

55 "OO'N

50 "00' N

CHIRIKOF

620

,

(

Other Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

65°00'N

60000'N

55°00'N

50000'N

170000'W

Figure 15.--Continued.

160 °OO'W 150000'W

Longitude

140 °OO'W 130000'W
221

50 "CO'N

I I

,~, I,,

I

170·00'W

1506 'OO'W

Longitude

I ,

'~~

I ,

,,I,,

~

Bycatch species: Other Tanner

Target Fishery:

Pollock

Gear type:

. Bottom Trawl

Quarter:

Fourth Quarter

Year:

1990

\ ( 

I Alaska 

~ <L~. f.. • 

'"

1:>

~"'0

-'

r0o mot",

55 "CO'N oJ_~ :':..J . ; I _ ~o·{) 0 CHIRIKOF 620

55'00'N

65 'OO'N

60 ·OO'N

50'00'N

55·00'N

130'00'W

Other Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

-+ > 25

Other Tanner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

-+ > 25

140 'OO'W

20Qmeters

55 "CO'N

65 "CO'N

60 "CO'N

50 "CO'N 50'00'N

170'00'W 160 'OO'W 1 50 'OO'W

Longitude

140 'OO'W 130 'OO'W

Figure 15.--Continued.
222

65°00'N

50 "CO'N

I I

,G. I ,,,

I

,,

I

,

I

1506 °OO'W

, Longitude

,,

_ A. ~.,. Bycatch species:

Quarter: Year: Target Gear type: Fishery: \ ( 

I Alaska 

___cL~./'.'

I\)

"U

~0

-'

rg.~·t'"

55 "CO'N ~" "'-"

ot-- 0 "LO-O 0 _ ~ 620O·O~O CHIRIKor

50000'N

55°00'N

65°00'N

50000'N

55°00'N

60000'N

1.30000'W

Other Tanner o 0.0(no/tan) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

Other Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25

140 °OO'W

Other Tonner

Other Species Bottom Trawl

First Quarter

1990

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

,,

50 "CO'N

55 "CO'N

60 "CO'N

65 "CO'N

170000'W 160000'W 150000'W

Longitude

140000'W 1.30000'W

Figure 15.--Continued.
223

65·00'N

60·00'N

55 ·OO'N

Other Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

4 > 25

Other Tonner

Other Species Bottom Trawl

Third Quarter

1990

\

(

CHIRIKor

620

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

·.

2Q,9'.f'!1eters

65 <QO'N

55 <QO'N

60 <QO'N

I 50 <QO'N1 '~I

,

,,

I

,, , I,, '50·00'N

1506304 ·OO'WW

I ,

'~'~

I ,

,I,

,

,,

,

,,

Bycotch species: Other Tonner I-65 ·OO'N

Other Species 

Other Tonner &"o/ton) 

. Bottom Trawl o O.

Fourth Quarter <- 1 1

. 1990 2 > 1 <- 10

.3

> 10 <- 25 

4 > 25

(

~

<1 .-v".a , .•.. ' ~

~60.00'N 

\ ~ • ...:.. _ 0 ...........,... " ~

1:>

~'0

-'

2Q.Qmeters

55 <QO'NJ

~

r~l_ - -

':/-, ~']:p~tt J55.00'N

650 .:{;j/ ~ 

620 

';i'~ OUTSIOE

Z

I I

,

I

,,,,

I

,

I ~ 50 ·OO'N

170·00'W

150 140·00'W 130·00'W 160·00'W ·OO'W

15.--Continued.
224

50 "CO'NI I

'~I

,

,,,

I

,,

I

,

I

15O•OO'N

150·00'W 130·00'W 140·00'W 150 ·OO'W

I ,

'~~

I ,,I,

,

,,

~ Bycatch species: Other Tonner l-55·00'N

All

Other Tonner &no/ton) 

. Pots o O.

Second Quarter <- 1 1

1990 > 1 <- 102 . 3

10 <- 25 \ > 25 4 

(

aska

'"j ~

<1 .-v o".:t , '" ~.

r5O•OO'N

-M S:~-l"~ \ 

~ # 

"0.3

~

-' 2Q.g"-F'geters

55 "CO'NJ ~. -,."

I KODIAK/ '\ I YAKUTAI &&0".. 1-55·00'N'~TJI:Y L

2Q.Q·meters

50·00'N

55·00'N

55·00'N

, I

Olher Tonner o 0.0(no/ton) 1 <- 1

2 > 1 <- 10

3 > 10 <- 25

4 > 25 \

(

55 "CO'N

55 "CO'N

50 "CO'N

SO "CO'N

170·00'W 150 ·OO'W 150·00'W

Longitude

140 ·OO'W 130 ·OO'W

Figure 15.--Continued.
225

50 'GO'N

170 ·OO'W L-.,

l60·00'W 150 ·OO'W

Longitude

, ,

'~'C'

I,,, I ,

,,

,

,

- Bycotch species:

Torget Quorter: Yeor: Geor type: Fishery: \ 

(

Alaska I ~~~f·

60 'GO'N

01>

".~"0

-'

2Q.Q·meters

55 'OO'N 1

(rJ" •• . -, oJ_" -~_620 .. CHIRIKOF

65 ·OO'N

60·00'N

65 ·OO'N

55·00'N

50·00'N

55 ·OO'N

50·00'N

130 ·OO'W

130 ·OO'W

Other Tonner o O.D(no/ton) 1 <- 1

2 > 1 <- 10

.3 > 10 <- 25

4 > 25

Other Tonner o O.D(no/ton) 1 <- 1

2 > 1 <- '0

.3 > '0 <- 25

4 > 25

l40·00'W

140 ·OO'W

\

(

l50·00W

Longitude

160 ·OO'W

65 'GO'N

2Qg·· meters

55 'GO'N

60 'GO'N

50 'GO'N

Figure 15.--Continued.
Table 47.--Estimated bycatch of Chionoecetes balrdl snow (Tanner) crab (In numbers of crab) by U.S. domestic groundflsh vessels In the

Gulf of Alaska region by NPFHC area and gear type, 1990.

(Dashes indicate area not fished.)

Area Percent by

6502134 6802Total 610 gear type

73,714 94,047 154 11,530 100747.4% 1937 8,252

699 100 11 16 ----0.4%727534 1930.4% 182287798 0 16

66,238 2011 9,074 5995 1,292 .. --102,717 51.8%

198,289 95,065 771229,285 6093 14,787 347 9,576

47.9% <01 39.2% 0.1% 0.2% 4.7% 31 4.8%

!\J

!\J

0'1
Table 48.--Estimated bycatch of "other" snow (Tamer) crabs* (In nll1Ders of crabs) by U.S. domestic groundfish vessels In the Gulf of

Alaska region by NPFMC area and gear type, 1990.

(Dashes indicate area not fished.)

Area Area Percent by

640 650 62130 631 620 680Total 610 gear type419 160 2,052 3,145 3 48.4X 09 1 501

00 0 ---- 0 O.OX

328 649287282380 97 1,681 25.9X

1,549830 0 42 - -.--

25.8X 1,674

2,358 747 2,422 2916,500 41 01 640

36.3X 11.5X <0.1X 37.3X 4.5X O.OX 9.8X

i snow (Tanner) crabs.

I\)

I\)

-...J
228

in metric tons (t» and Chionoecetes~ catch (in numbers)

by target fishery and area in the Gulf of Alaska region, 1990. c. bairdi

PerXXoftwithin oftotalCatchbycatch (nurbers) grouncffi catcharea sh Area*

18.2X 15<0.1X8857.8 Eastern

24.4X 23.2X 22,979.2 2.045,988 Central1.6X 0.1X 2,047.6157

25,084.6 1.846,233 23.3X --

nf nf nf Eastern<0.1 <0.1X <0.1X 45,267.1Central 10

0.0O.OX O.OX 6,321.2

0

<0.151,588.3 -- 10 <0.1X

nfnf nf Eastern

0.9X 0.9X 18,406.7 0.1 1,775 Central<0.1<0.1X <0.1X884.81

19,291.5 0.1 1,776 0.9X --

0.5 2.n <0.1X 27.4 13 Eastern

20.4X 44,106.0 19.4X0.938,426

BO.n32,277.9 3.9X 0.2 7,724

76,411.3 0.646,163 23.3X --

0.1 3X <0.1X249.5 15 Eastern0.3X 0.23X 3,040.2528

<0.1 <0.1X2 2,451.4160.15,741.1559 0.3X --

nfnf nf Eastern

53.9X 51.2X 5,478.8 101,425 18.513.5Xo.n8.1 1,292 159.7

51.8X--5,638.5 102,717 18.2

<0.1 <0.1X 3.n879.5 18 Eastern

<0.1<0.1X <0.1X 1,215.532.4X 0.61X383.5 226

0.12,478.5247 0.1X --

42.9X <0.1 11,468.0 0.1X 207Eastern

<0.1 <0.1X <0.1X 10,855.3320.0O.OX O.OX 1,868.8

0

<0.1 24,192.1239 0.1X--

<0.1 294X 0.1X 9,805.1142 Eastern<0.1 <0.1X <0.1X 15,840.443<0.1X 1.n8,325.1160

<0.1 33,970.6345 0.2X--

<0.1 22,487.3483Eastern0.2X

167,189.2 188,230 94.9X -- 1.1

54,720.0 0.29,576 4.8X --

244,396.5 0.8 198,289

ts of Areas 620, 621, 630, and 631;

and

nf= No fishing.
229

metric tons (t» and "other" snow (Tamer) crabs catch

(in numbers) by target fishery and area in the Gulf of Alaska region, 1990. "Other" snow (Tamer) crabs

Per% %oftwithin oftotalCatch

bycatch (numbers) groundfish catch areaArea*

<0.1<0.1%22 57.8Eastern

43.8% 32.2X 0.122,979.2 2,096Central 

<0.11.n 0.2X2,047.6 11 

0.125,084.6 2,109 32.4" --

nfnf nfEastern

0.00.0% 0.0"45,267.1 Central 0 

0.00.0% O.OX6,321.2 0 

0.0 51,588.3 0 O.OX --

nfnf nfEastern

<0.10.1X18,406.7 Central 4 

0.00.0% O.OX 0884.8<0.1--19,291.5 4 0.1%

<0.1<0.1%1 27.4Eastern<0.11.1X5%44,106.0 71 

<0.10.2X 1.9X32,277.9 12

<0.1 76,411.3 84 1.3X--

0.1 1.2X 0.2X13249.5Eastern<0.10.6%4X3,040.2 27

0.0O.OX O.OX2,451.4 0 <0.1-- 5,741.1 40 0.6Xnfnf nfEastern

34.1% 25.1" 0.31,632 5,478.8 

6.6% 030.6%42159.7

0.31,674 5,638.5 25.8X --

<0.12.2X 04"24879.5Eastern 

<0.1<0.1% <0.1%1,215.5 1 

0.1 36% 0.4%23383.5

<0.1 2,478.5 48 o.n--

58.9X 0.1.8%11,468.0 635 Eastern 

<0.1% 0.1 14.0X10,855.3 908 

15.2X 011.5%1,868.8 97 

0.124,192.1 1,640 25.2X --

37.4% <016.2%9,805.1 404 Eastern<0.1 <0.1% 0.6X15,840.4 42 

71.1X 0.17.0"8,325.1 455 <0.133,970.6 901 13.9X--

16.6%<0.1 --22,487.3 1,079 Eastern

<0.1 167,189.2 4,781 73.6%-- 

<0.154,720.0 640 9.8%-- 

<0.1 244,396.5 6,500

of Areas 620, 621, 630, and 631;

and

nf = No fishing.
230

amined for condition by observers in u.s. domestic groundfish catches

in the Gulf of Alaska region by species and gear type, 1990.

Exce IIent

DeadPoor

rurbers I'IUICers %I'IUICers Gear type

34.8% 23 41.0% 2,685 1,874 3,162 Trawl

0.4% 3.6% 96.0% 4,917 2018519.6% 39.1% 413 1918

4.9% 17.9% 72 12754935 TrawL

0.0% 00 01728.0% 549 .1% 451423

17.0% 36.2% 48 22817 TrawL

O.OX 00% 00 0

50.0%X 0.0% 101
231

Table 52.--Biological data on the bycatch of snow (Tanner) crabs

in u.s. domestic groundfish fisheries in the Gulf of

Alaska region, 1990.

Average Average Percent Sex

composition byweight Sex width species(mm) (kg)

Male 75.4 107.00.5696.8%

24.675.90.28 Female

Male66.8 117.40.483.1%33.297.20.28

Male49.176.20.330.1%

50.965.20.12
Table 53.--Monthly bycatch rates (number of crab per metric ton of catch and average weight (kg» of red king crab taken in U.S.

domestic groundfish fisheries in the Gulf of Alaska region by gear type, target fishery, and NPFMC area, 1990.

Area 610

Area 6504 680312

Avg.Rate

wt.

Jan.

19.962 2.51 -- -- -- 0.000 0.00

0.000 -- -- -- 0.000 0.00-- ---- -- ns ns0.900 0.000 1.041 -- --0.000-- ---- - - 0.000 0.00

1.95 000 0.021 0.000 -- - -0.000 0.00

--0.000

0.00 0.000 -- --0.000 0.000

July

0.000 0.000 -- ---- -- 0.000 0.00

0.00 352 6.00 0 0.00099 0.022 0.000

0.10 0.906 

f\J 0.00 6 324 2.36 000 0.00015 0.152010 0.000 -- -- -- w

-- - -0.009 9.50 002 0.0040 h --- -- --h f\J

Year

.3.34 000 2.453 0.00016 0.150004 2.49 0.840

Jan.

- - ---- --- - 0.000 0.00 0.000

-- ------ ---- 0.000 0.00

0.000 -- - - -- 0.000 0.000.000 -- --- - -- 0.000 0.00

-- -- --

July

-- --0.000 0.00 0.000

0.000 -- -- -- 0.000 0.00 0.0000.00 0.000 -- --0.000 0.0000.000 -- --0.000 0.000

Dec. Yar

0.00 0.000 0.000
Table 53.--Continued.

Area 610

Area 650 6314028 603

Avg.Rate

wt.

Jan.

0.000 ns0.00 ns0.000 ns -- ---

ns- --ns0.000 0.00 0.000 0.000 ns -- --ns ns0.000 0.0037 0.0001 0.000 ns

0.000 ns0.00 2.21 136 0.00026 0.000 0.003 ns

0.000 ns0.00 0.000 0.000 ns

0.000 -- --.- -- ns ns

5.45 00034 1.4 0111.00 00 0.006 -- --0.000 0.000

ns3.84 0.087 0.000 ns

4.30 0950 0.0008 0.014

0.00 35 1.30 04 0.11000 0.51 0.000

0.000 0.000

N 

---- ---- -- w

ns ns ----------

w

ns<0.001 4.69 000.98 137 0.00584 0.000 0.38 0.002 ns

Jan.

0.000.000 -- --0.000 0.000

0.000 -- --0.000 0.000

Apr.

0.000 -- --0.000 0.000

-- -- ---- 0.000 0.00-- --

ns ns 0.000 -- 0.00-- --

-- ---- -- 0.000 0.00-- ---- --- 0.000 0.00

ns ns ------ 0.000 0.00 0.000

0.000 -- ---- -- 0.000 ns0.00ns

Dec. Yar

0.000 ns0.00 0.000 0.000 ns
Table 53.--Continued.

Area 610

Area Area Area 640 65031 6208 621

Avg.Rate

wt. wt.

Jan.

Feb.

-- ---- n-- 0.000 0.00

--

--- -- 0.000 0.00

ns ns ----- - 0.000 0.00

-- ---- --- ns--ns --0.000 0.00--

n--- --- - 0.000 0.00-- --

--

--ns--ns --

Sep.

-- --0.000 -- 0.00

ns 0.000 ns --0.000 -- ns0.00ns

t-J

-- -- ns-ns --n ----

wns ns ---------- -- ,j:::o.

ns0.00.000 ns ---- 0.000 ns0.0 0.00ns

Jan.

ns ns 0.000 ---- ns 0.00ns

0.000.000 -- --0.000 0.00 252 0.00 0.129000

ns 0.000 ns --0.000 -- ns0.00ns ----ns

0.000 0.00 0.000 0.000 --ns --

ns nsns

0.000 0.00 0.000 -- ns --

ns nsns

0.000.000 -- ---- -- ns nsns

Aug.

0.00.000 -- ---- -- ns--ns -- -- ns nsns

--ns--------nsns--

-- -- ---- ns--ns -- -- ns ns

0.00.000 -- ----

ns------ns

0.000.000 -- --

ns --ns0.000 ns0.00 2.52 0.0060 ns0.000 ns
Table 53.--Continued.

Area 610

Area Area 640523 61802

Avg.Rate

wt.

e vessels (sablefish target)

Jan.

Mar. Feb

--

n----n-- ns ns

0.000 ns0.00 1.16 0.00012 0.000 0.000 ns

0.300.007 -- --ns nsns

ns

----n nsns -- nsns

n ----- ---- nsn ns --- -- ns ns

n

---n - --n.. ns nsn--

ns

-- --n ns- -

. n ----- -- I\) - - n---- ----n W--

n-----n..-- lJ1

0.000 ns0.300 116 0.0005 0.003 ns

Jan.

.- -- n-- ns--ns -- n ns ns

-- --- - --..---- ns ns

-- -- --n-- ns ns

0.00 0.000 0.000 -- -- -- ns nsns

-- ---- --n 0.000 0.00-- - - ns nsns-- ---- ---- ns--ns n -- ns ns

-- --- -- ns--ns -- -- ns ns

-- ---- --- ns--ns ---- -- ns ns-- --- - -- ns--ns -- n ns ns

----

ns----.ns-------ns-

. -- ----- ----- ns ns

--

ns

-- ----ns-

. 

0.00 0.000 0.000 --

-- ns nsns
Table 53.--Continued.

Area 610

Area 6405 620318

Avg.Rate

wt.

Jan.

ns ns

ns ----ns

ns --0.000 -- 0.00 0.000

nsns ns ns 0.000 --0.00 -- ns

-- --

ns0.000 --ns 0.00ns--ns-- --0.000 0.00ns ns

0.000 --0.000 -- ns0.00ns

ns3.02 267 2.414 0000 2.489 0.000 ns

0.024 0.00 242 0.00 132 0.000 7858 0.000

0.000 ns0.000 0.000 ns

-- -- -- 0.000 0.00 0.000-- ---- ---- ns nsns

0.00 295 1.51 0000.175 0000 2.336 0.000

Dashes indicate area not fished.

ns = Fishing occurred but no sampling by observer.

I\.J

W

0'1
Table 54.--Monthly bycatch rates (nunber of crab per metric ton of catch and average weight (kg» of "other" king crabs* taken in U.S. domestic

groundfish fisheries in the Gulf of Alaska region by gear type, target fishery, and NPFMC area, 1990.

Area 610

Area 6408315 620 Avg.Rate Rate

wt.

Jan.

0.00-- 0.000 ..---- 0.000 0.00

0.000 -- --- -- 0.003 1.00-- - - .. ns ns

0.00 0.000 -- 0.000 --0.000 ..0.000 0_

0.00

0.99 248 0.0270.026 .. --0.008 0.97 0.011-- 1.45 0000 0.00

0.7429 17 0.000 0.01134 -- 0.180 -- 0.050 0.00 127 0.000

July

10.5275 0.00 0.000 1445 0.0000.774 -- --0.000 -- .. 0.00

0.0000.000

2.10-- 0.604 --0.000 0.000

0.95 0.000 .. 0.103 --..--t\J--- 

W 0.0075 0.00018 -- 0.000 --..---- --- '-oJ

Year

6.67 09 1.01 00 1.31 0040.027 0060.049

Jan.

-- -- -- 0.000 0.00 0.000

-- --- -- 0.000 0.00

1.08 0.164 -- ---- -- 0.000 0.00

1.70-- 0.022 -- -- 0.000 0.00

-- -- -- --

July

-- --0.000 0.00 0.000-- 0.000 -- -- 0.000 0.00-- ---- 0.000 --0.000 0.000-- 0.000 --0.000 0.000

Dec. Yar

0.00 117 0.0000.007
Table 54.--Continued.

Area 610

Area Area 6804 631 650 620 621 630

Avg.Ratee

wt. wt.

Jan.

0.000 ns0.00 ns--ns0.000 ----- ns ns

0.000 0.00 0.000ns0.000 -- --

ns ns

0.00 0.27138 0.000 137 0.0009 178 0.077 14 0.015 125 0.005

0.018 ns0.00 0.98 0.00 22 1.31 0000.1 136 0.0004 ns. nsns0.012

0.024 ns11.32 0.0086 1.04 02417 1.53 0000 0.0 ns0.107

1.40-- 0.048 -- -- ns ns

0.27383 5.50 008 1.3854 0001 -- 0.030 --0.000 0.000

ns0.88 529 0.00330 0.0071 138ns0.260

0.8800 0.0001.7690.26 0.1060.61 0.195 -- --0.000-- ---~-----

w ns ns ---------- OJ

0.00 531 0.00 651 0.277290 0.009406 1.38 0017.02 0030.093

Jan.

0.00-- 0.000 --0.000 0.000

0.000 -- --0.000 0.000

Apr.

-- 0.000 --0.000 0.000

-- -- -- 0.000 0.00

--

ns0.000 --ns -- 0.00-- --

-- -- -- 0.000 0.000.000 -- -- 0.00

ns ns ------ 0.000 0.00 0.000

-- 0.000 -- -- 0.000 ns0.00ns

Dec. Yar

0.000 ns0.00 0.000ns0.000
Table 54.-·Continued.

Area 610

Area 6403158 6203 621

Avg.Rate

wt.

Jan.

Feb.

--

u--- - -- 0.000 0.00

u --- - ---- 0.000 0.00-- ------

ns ns - ----- 0.000 0.00

-- ----- - -- ns--ns u

0.000 0.00

-- --- - --- - 0.000 0.00--

--

-

- ns--ns --

Sep.

-- ---- -- 0.000 0.00

ns ns0.000 --0.000 -- ns0.00ns I\J 

-- ----- ns--ns ---u - --u w

ns ns --u--~----ns0.00ns0.000 --0.000 - - 0.000 ns0.00ns

Jan.

ns ns 0.000 u

0.00 u nsns

0.000 -- --0.000 0.000

ns ns0.000 --0.000 -- ns0.00ns ----ns

0.000 0.000ns0.000 -- --

nsnsns

0.000 0.00 0.000 - - ns --

ns nsns

0.00-- 0.000 -- ---- ns nsns

Aug.

0.00-- 0.000 ---- - - ns ns --eo---- nsnsns

-- --u-- -- ns--ns -- -- ns ns-- ---- ns--ns -- -- ns ns

0.00-- 0.000 -- -- ns- -ns -- -- ns ns

0.00-- 0.000 -- -- ns ns

0.000 ns0.000 nsns0.000
Table 54.--Continued.

Area 610

Area Area Area 6408 63150 62130

Avg.Rate Rate

wt.

Jan.

Har. Feb.

--

----eo------- ns ns

3.32 073 0.0680.031 -- 0.073 -- 0.000 ns0.4900 0.000ns

0.6306 0.00019 - - 0.007 ns-- nsnsns

ns ns ---eo-- ns--nsnsns

-- ------- ns--ns -- -- ns ns

--

----- -- ns ns

-- --eo ----- ns ns

I\) 

-- eo-- eo---..- "'"

eo----n0- eo--- ..

0.000 nsns4.58 07300.5 0.000 042.03 ns0.020

Jan.

-- eo----eo ns--ns -- -- ns ns-- ------- ---- ns ns

--

ns

--------ns- --

0.00 0.000 -- 0.000 --0.000 ns0.000ns

0.000 -- 0.000 --0.237 2.15 ns nsns--

--

ns--------eons --

-- ------ --eo ns--ns -- -- ns ns

----

ns--------ns

--

eo--ns----------eons ----

ns--------ns

--

0.00eo 0.000 ----- - --eo ns ns

--

ns

--------ns

--

0.00 215 0.00072 0.000 -- 0.000 --0.000 ns0.00 0.000ns
Table 54.--Continued.

Area 610

Rate Avg.

wt.

Area 620

Rate Avg.

wt.

Area 621

Rate Avg.

wt.

Area 630

Rate Avg.

wt.

Area 631

Rate Avg.

wt.

Area 640

Rate Avg.

wt.

Area 650

Rate Avg.

wt.

Area 680

Rate Avg.

wt.

Pot vessels (all target fisheries)

Jan. ns ns

ns ----ns

ns --0.000 -- 0.00 0.000

ns ns ns 0.000 --

0.00 --ns

-- 0_

ns ns --0.000 -- 0.00

ns0.000 --ns -- ns0.00ns

0.000 --0.000 -- ns0.00ns

ns0.000ns0.000

0.000 0.0000.000

0.000 ns0.000ns0.000

-- -- --

eo 0.000 0.00 0.000

-- ---- ---- nsnsns

0.00 0.0000.000

*species include golden, blue, and couesl king crabs.

Dashes indicates areas not fished.

ns = Areas fished but not sampled by observers.

tv

.1'0

•....
242

,

,I

,

,I,I

,

I

~65·00·N 

..... "<-.,. Bycatch species: Red King Crab

Target Fishery:

Red Flatfish King Crab (no/ton)

. Bottom Trowl o 0.0

First Quarter <- 1 1

. 1990 2 > 1 <- 5

:3

5 10 \ > 10 4 I

aska ;#~ "\)r.A.a ,! t-SO.OO'N 

A..

".z

~

-J

. 2Q.Q·meters

-~i

\ /I EAST'9"1t·~,·,,~ L55·00'N

KODIAK VAKUTA 660..;;.\_ , .

- ~ . 620 CHIRIKor

~

UUI~UI~ "'f

'~I

~·:150.00'N

,, , I

.,,,

I

.,

I

13054SO·OO'W ·OO'W

I

,

,,I,

,

I,

,

I

~S5·00'N 

--A "<-.,. Bycatch species: Red King Crab

Target Fishery:

Red Flatfish King Crab (no/ton). Bottom Trawl o 0.0

Second Quarter <- 1 1

1990 > 1 <- 5

2 . :3

5 <- 10 \ > 10 4

I

aska 

N-I

'> - .A/:f! .a

...,j-J!t\~ ~SO.OO'N

A.

".z:;:;

-J0 . -20Q"'fI1eters

~. 11..0'°1°

\ I ~~~TA! 66~lr''\.~J L55.00'N/ .... ~f,IO! "'0 KODIAK

50 "OO'N 50·00'N

170·00'W 1SO·OO'W 150·00'W

Longitude

140·00'W 130 ·OO'W

Figure 16.--Average incidence (no.It) of red king crab in the

u.s. domestic fisheries by quarter, target fishery,

gear type, and 1/2· latitude by 1/2· longitude areas

in the Gulf of Alaska region, 1990.
55 COO'N 55·00'N

50 COO'N

•

'2Q.g'~eters

55 COO'N

50 "CO'N

243

\

(

Red King Crab (nofton) o 0.0 1 <- 1

2 > 1 <- 5

:5 > 5 <- 10

4 > 10

,

50·00'N

55·00'N

50·00'N

170·00'W 150 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

55 COO'N

50 COO'N

-2DQ--meters

55 COO'N

50 COO'N

\

(

Red King Crab (nofton) o 0.0 1 <- 1

2 > 1 <- 5

:5 > 5 <- 10

4 > 10

55·00'N

50·00'N

55·00'N

50·00'N

170·00'W

Figure 16.--Cont_inued.

150·00'W 150 ·OO'W

Longitude

140·00'W 130·00'W
244

65·00'N

50 "CO'N

I I

I~I

I

,,

I

,

150·00'W 60 °OO'W

Longitude

I ,

'~~

I ,

,,I,

,

,

,

,

~

Bycatch species: ~ Quarter: Year: Target Gear ( type: Fishery: ,

Alaska I 

.•..•..o(.~. £.

a>

":>

-0

...J

r§~·t."

55 "CO'N

v-... ·~I ot-. _ ~o·620 CHIRIKor

50·00'N

55·00'N

60·00'N

65·00'N

50·00'N

55 ·OO'N

60·00'N

130 °OO'W

Red Kin9 Crab (no/ton) o 0.0 1 <- I

2 > I <- 5

3 > 5 <- 10

4 > 10

Red Kin9 Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140·00'W

,

(

Red King Crab

Pollock

Bottom Trawl

First Quarter

1990

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

..

50 "CO'N

200rTJeters

55 "CO'N

60 "CO'N

65 "CO'N

170·00'W 160 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130·00'W

Figure 16.--Continued.
65 "CO'N

60 "CO' N

55 "CO'N

50 "CO'N

20g, meters

245

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

Red King Crab

Pallack

Battom Trawl

Third Quarter

1990

\

(

65·00'N

Red King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

60·00'N

55 ·OO'N

50·00'N

170 ·OO'W 160 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 1 30 ·OOW

65 "CO'N

60 "CO'N

2Q.g·'rT)eters

55 "CO'N-t ... : cP!" ijr~~ _•••_",_.0 ".' 0

,,-.JJ. 0- o-{) ;.~~~::-r00

50 "CO'N

CHIRIKor

620

\

(

Red King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

3 .> 5 <- 10

4 > 10

65·00'N

55 ·OO'N

50·00'N

170·00'W

Figure 16.--Continued.

160·00'W 150 ·OO'W

Longitude

140·00'W 130·00'W
50 COO'N-1 '~I

t-50·00'N

,, , I

,,

I

,,

I

,,

I

150·00'W 160·00'W 1304 ·OO'W

I

,

,I,,I

,

,

~ 65 ·OO'N 

_A '\"C' Bycatch species: Red King Crab

Target Fishery:

Red Other Kinq Crab Species (no/ton)

. Bottom Trawl o 0.0Second Quarter <- 1 1

. 1990 2 > 1 <- 5

3

5 <- 10 \ > 10 4 ( 

Alaska

'N-J

,,-t • ..J't :- C /.f)~~.J~~ Ioc

t-60.00'N

--0::> 0-' . 20Q-meters

_ ~'QO'O;QI

\ I EAST t O"7\.~lt L55 ·OO'N /

..•. ,,,-0 01·'0 KODIAK YAKUTA 660 "' .. , ••

.ot,.o 0 b.o·o_~ 00-00 620 CHIRIKor

65 COO'N

60 COO'N

55 COO'N

50 COO'N

170·00'W

Figure 16.--Continued.

246

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

150·00'W

Red King Crab

Other Species Bottom Trawl

First Quarter

1990

\

(

150 ·OO'W

Longitude

Red Kinq Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140·00'W

65·00'N

60 ·OO'N

55 ·OO'N

50·00'N

130 ·OO'W
247

65 "OO'N

60 "OO'N

2Qg·.f1'1eters

55 "OO'N

50 "OO'N

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

..

CHIRIKOF

620

Red King Crab

Other Species Bottom Trowl

Third Quarter

1990

\

(

Red King Crob (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

65·00'N

60·00'N

55·00'N

50·00'N

170·00'W 160 ·OO'W 150·00'W

Longitude

140·00'W 130·00'W

Red King Crob (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

50·00'N

55·00'N

65 ·OO'N

60·00'N

140 ·OO'W 130·00'W

\

(

150 ·OO'W

Longitude

170 ·OO'W 160 ·OO'W

2Qg-meters

60 "OO'N

55 "OO'N

50 "OO'N

65 "OO'N

Figure 16.--Continued.
65 COO'N

60 COO'N

2Q.9-n'1eters

55 COO'N

50 COO'N

170 ·OO'W

65 COO'N

60 COO'N

2QO meters

55 COO'N

50 COO'N

1 60 ·OO'W

248

150 ·OO'W

Longitude

\

(

\

(

65·00'N

Red King Crab (no/tan) a 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

60·00'N

55·00'N

50·00'N

65·00'N

Red King Crab (no/ton) a 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

60·00'N

55 ·OO'N

50·00'N

1 70 ·OO'W

Figure 16.--Continued.

1 60 ·OO'W 1 50 ·OO'W

Longitude

1 40 ·OO'W 130 ·OO'W
249

65 ·OO'N

50 "CO'NI I

,G, I ,

I

.,

1506 ·OO'W

, Longitude

.

~ '("~ Bycatch species:

Target Quarter: Gear type: Fishery: Year: \ ( 

I Alaska 

__<t~~ f..

v

1:):J

15

....J

~ 2Q9metm

55 "CO'N

(r-" •.

hi

ot.-. - ~ . 620 CHIRIKOF

50·00'N

55 ·OO'N

60·00'N

65 ·OO'N

50·00'N

55·00'N

60000'N

130 ·OO'W

Red King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

Red King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 ·OO'W

\

(

Red King Crab All

Pats

Third Quarter

1990

Bycatch species:

Target Fishery:

Gear type: Quarter:

Year:

-2Q.Q.f!Jeters

50 "CO'N

55 "CO'N

60 "CO'N

65 "CO'N

15

....J

170 ·OO'W 160·00'W 150 ·OO'W

Longitude

140 ·OO'W 130 ·OO'W

Figure 16.--Continued.
250

65·00'N

50 COO'N

I I

,~, I ,

I

,.,

I

150·00'W 160 ·OO'W

, Longitude

,,

.A '("""" Bycatch species:

Target Quarter: Year: Gear type: Fishery:

. I Alaska 

----(~~ /'..

CI>

"0:>

:g-1

12Q9-meters

55 COO'N

50·00'N

55°00'N

60000'N

65·00'N

50·00'N

55 ·OO'N

60·00'N

130000'W

130 ·OO'W

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

:3 > 5 <- 10

4 > 10

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

:3 > 5 <- 10

4 > 10

, 40 ·OO'W

\

(

150 ·OO'W

Longitude

160000'W

2Q.9-·'l'r)eters

170·00'W

50 COO'N

55 COO'N

60 COO'N

65 COO'N

Figure 17.--Average incidence (no./t) of "other" king crab in

the U.S. domestic fisheries by quarter, target fishery,

gear type, and 1/2· latitude by 1/2· longitude areas

in the Gulf of Alaska region, 1990.
251

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10 4 > 10

50 ·OO'N

55·00'N

55·00'N

50·00'N

140 ·OO'W 130 ·OO'W

\

(

Other King Crab

Flatfish

Bottom Trawl

Third Quarter

1990

150·00'W

Longitude

Bycatch species:

Target Fishery:

Gear type:

Quarter:

Year:

..

150 ·OO'W

50 ~O'N

20Q-n')eters

55 ~O'N

170·00'W

55 ~O'N

50~O'N

55 ~O'N

50 ~O'N

200--f!Jeters

55 ~O'N

50 ~O'N

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > to

55·00'N

50·00'N

55 ·OO'N

50 ·OO'N

170·00'W 150 ·OO'W 150 ·OO'W

Longitude

140 ·OO'W 130·00'W

Figure 17.--Continued.
65 COO'N

60 COO'N

20.0· meters

55 "CO'N

50 "CO'N

CHIRIKOF

620

252

150 ·OO'W

Longitude

"

f

65·00'N

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

,) > 5 <- 10

4 > 10

55·00'N

..'

50 ·OO'N

130 ·OO'W

65 COO'N 65·00'N

60 COO'N

20.9-·meters

55 COO'N

50 "CO'N

"

f

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

,) > 5 <- 10

4 > 10

60·00'N

55 ·OO'N

50·00'N

170 ·OO'W

Figure 17.--Continued.

160·00'W 150 ·OO'W

Longitude

140·00'W 130 ·OO'W
253

Other King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

.3 > 5 <- 10

4 > 10

50·00'N

55·00'N

55·00'N

50 ·OO'N

50·00'N

55·00'N

55·00'N

Crab (no/ton) 0.0

<- 1

> 1 <- 5

> 5 <- 10 > 10

Other Kingo

1

2

.3

4

140 ·OO'W

Other King Crab Pollock

Bottom Trawl

Third Quarter

1990

\

(

150·00'W

Longitude

CHIRIKOF

620

Bycatch species:

Target Fishery: Gear type: Quarter:

Year:

..

150 ·OO'W

2Q.9·meters

60 "OO'N

65 "OO'N

2Q.9meters

170·00'W

55 "OO'N

50 "OO'N

55 "OO'N

50 "OO'N

55 "OO'N

50 "OO'N

1 50 ·OO'W

Longitude

50 ·OO'N

Figure 17.--Continued.
55 COO'N

50 COO'N

200 meters

55 'QO'N

254

55·00'N

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

50·00'N

55·00'N

50 'QO'N i '~I

.-50·00'N

,., , I,.,

I

,,

I

,

I

.,

I

.

I

140·00'W 150·00'W 503 ·OO'W

I ,

,I,

,I

,

I

,

,I

t- 55 ·OO'N 

.A "("'" Bycatch species: Other King Crab

Target Fishery:

OtherOther King Species Crab (no/ton)

. Bottom Trawl o 0.0

Second Quarter <- 1 1

. 1990 2 > 1 <- 5

3

5 <- 10 \ > 10 4 

( Alaska

'N-I

"r..A ,-J .:I

/::IJ~~J~'~ ~50·00'N

"'-

".~(;....J 2Q.Q-nJeters

~"oO"1 

\ I EAST ~ u-~"~~ L55.00'N/ ' :. 13""I~ 0 i"1 KODIAK YAK UTA 660..1.:'. _ . "

50 'QO'N

Figure 17.--Continued.

150 ·OO'W 150·00'W

Longitude

140 ·OO'W 130·00'W

50·00'N
255

I ,

'~~

I ,

,I,

,

,,

,

,

A

Bycatch species: Other King Crab !-55·00'N

OtherOther KinqSpecies Crab (no/ton)

. Bottom Trawl 0.0 0

Third Quarter <- 1 1

. 1990 2 > 1 <- 5

.3

> 5 10 ~ > 10 4 ( 

Alaska

N 1 ~

o .-t!"•• ' ~ ' .••.• ~ 0 0--

r5O•OO'N 

0::01 ~\ "

·1 0 0'0 .; "0

~-0

-' 20.9' meters

~'Oo ij,.'.; 'r

\ I ~~~TA~ 660 L55.00~N :~~~ /

... '.' KOOIAK I~I~~.•' 1 0

~1'1

o 0 CHIRIKOF

riA "I

620

, 1 '.

50·00'N15043 ·OO'W ·OO'W

,

'~'~

I ,

I,

,

,

,

- Bycatch species: Other King Crab !-55·00'N

OtherOther KinqSpecies Crab (no/ton)

. Bottom Trawl o 0.0

Fourth Quarter <- 1 1

1990 > 1 <- 5

2 . .3

> 5 10 ~ > 10 4 ( Alaska ....,

"1 ~

o .-t!".' ~ ,. "\o~-

r5O•OO'N 

~ \" -'M - ......... J'" "

· ~ ~ 0 -'''''' ..../," ~ "0~-0

-'

2Q.9-~eters

55 <QO'NJ ~. w"~I_ V,'V

VI KOOIAK / \.\ YAKUTAT 660!-55·00'N "" ••• "rwi:'.-I50·00'N

CHIRIKOF

620

50 <QO'N

170·00'W 150 ·OO'W 150 ·OO'W

Longitude

'1 40 ·OO'W 130 ·OO'W

Figure 17.--Continued.
55 "OO'N

50 "OO'N

20q meters

55 "OO'N

50 "OO'N

CHIRIKor

620

256

\

(

Other King Crab (no/tan) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55'00'N

50'00'N

55'00'N

50'00'N

170'00'W 1 50 'OOW 150 'OO'W

Longitude

140 'OO'W 1 30 'OO'W

"0-'

55 "OO'N

50 "OO'N

55 "OO'N

50 "OO'N

2Qq"r"f1eters

Quarter

\

(

Other King Crab (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55 'CO'N

50'00'N

55 'OO'N

50'00'N

170'00'W

Figure 17.--Continued.

1 50 'OO'W 1 50 'OO'W

Longitude

140'00'W 1 30 'OO'W
257

65 <QO'N

60 <QO'N

20.9' meters

55 "CO'N

CHIRIKor

620

\

(

55·00'N

Other King Crob (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

55·00'N

55 ·OO'N

50·00'N

55 ·OO'N

50·00'N

130 ·OO'W

Other King Crob (no/ton) o 0.0 1 <- 1

2 > 1 <- 5

3 > 5 <- 10

4 > 10

140 ·OO'W

50 "CO'N

I I

. T: ,

I ,,.,

I

.,,

150 160 ·OO'W

Longitude

,

'~~

I ,,,I,

,

,,

I

- Bycotch species:

Year: Torget Geor Quarter: type: Fishery: \

(

laska I 

~ <L~~ /'..

CI>

"t)

~0

...J

~ 209 mot."

55 "CO'N

~ .•. I ot,.. - ~ 620.. CHIRIKor

50 <QO'N 50·00'N

170·00'W 150 ·OO'W 1 50 ·OO'W

Longitude

140 ·OO'W 130·00'W

Figure 17.--Continued.
Table 55.--Estimated bycatch of red king crab (in numbers of crab) by U.S. domestic groundfish vessels in the Gulf of Alaska region

by NPFHC area and gear type, 1990.

(Oashes indicate area not fished.)

Area

Area Percent by

6403158 6203Total 610 gear type

30707.3" 112 500507 3800 0 eo -- 0 0.0"

455601.5" 00106 5

-

5,517 -446 200 0 132 --91.1" 6,295

5,623 6,908 798 312 0 0 175

81.4" 11.6" 0.0" 4.5" 00 2.5"

!\J

U1

():)
Table 56.--Estimated bycatch of "other" king crabs* (In nurbers of crabs) by U.S. domestic groundfish vessels In the Gulf of Alaska region

by NPFMC area and gear type, 1990.

(Dashes Indicate area not fished.)

Area

Area Area Percent by

63045 6213 680 620Total 610 gear type 

177 110 1,192 2,455 4 15.8X 30 1 968000 0 ---- 0 O.OX

341222994.2X 3322 0782 65000 0 ---- 0 O.OX

518 132261,491 363,237 0 1 1,033

0.8X 4.1X 16.0X 46.1X <0.1X 1.1X O.OX 31.9X

tv

U1

\0
260

ch (in metric tons (t» and red king crab catch (in numbers) by

target fishery and area in the Gulf of Alaska region, 1990.

Red king crab

PerX

Xoftwithin oftotalCatch

bycatch (numbers) grounc:lfish catch areaArea*0.000O.OX O.OX057.8Eastern0.009 2.9X 3.OX 22,979.2 202Central0.000O.OX O.OX 2,047.60

0.008 2.9X25,084.6 -- 202

nfnf nfEastern

0.000O.OX O.OX 45,267.1Central 0

0.000O.OX O.OX 6,321.20

0.000O.OX51,588.3 -- 0

nfnf nfEastern

0.000O.OX O.OX 18,406.7Central 0

0.000O.OX O.OX884.8 0

0.000O.OX19,291.5 -- 0

0.000O.OX O.OX027.4Eastern

0.006 3.9X 4.0X 44,106.0 267

0.000O.OX O.OX 32,277.90

0.00376,411.3 267 3.9X--

0.000O.OX O.OX249.5 0 Eastern

0.0060.3X 0.3X 3,040.2 19

0.000O.OX O.OX 2,451.40

0.003 5,74119.1 0.3X--

nfnf nfEastern

91.5X 1.125 89.X 5,478.8 6,1630.827 75.4X 1.9X132159.7

1.116 5,638.5 6,295 91.1X--

0.000O.OX O.OX879.5 0 Eastern

0.000O.OX O.OX 1,215.50

0.0130.1X 2.9X383.5 50.0020.1X--2,478.55

0.000O.OX O.OX 11,468.00 Eastern

0.0081.2X 1.2X 10,855.3 82

0.0030.1X 2.9X 1,868.85

0.004 1.3X24,192.1 -- 87

0.000O.OX O.OX 9,805.10 Eastern

0.000O.OX o.ox 15,840.40

0.00418.9X 05 8,325.1 330.00133,970.633 0.5%--

0.000 22,487.30EasternO.OX

0.040 167,189.2 6,733 97.5X--

0.003 2.5X54,720.0 -- 1750.028 244,396.5 6,908

sists of Areas 620, 621, 630, and 631;

and

nf= No fishing.
261

ch (in metric tons (t» and "other" king crabs catch (in nuJt>ers)

by target fishery and area in the Gulf of Alaska region, 1990.

"Other" king crabs

Per% Xoftwithin oftotalCatch

bycatch (runbers) groundfish catch area Area*

0.035<0.1% LOX2 57.8 Eastern 

0.009 6.1X 9.9X 22,979.2 199 Central 

0.096 19.1% 6.1%2,047.6 197

0.01625,084.6 398 12.3X--nfnf nf Eastern 0.000O.OX O.OX 45,267.10 Central 

0.000O.OX O.OX 6,321.20 

0.000 51,588.30 O.OX--

nfnf nf Eastern

<0.0010.1X18,406.7 0.1% 3 Central 

0.000O.OX O.OX884.8 0

<0.001 19,291.5 -- 3 0.1X

0.036<0.1X 0.5X1 27.4 Eastern 

0.0023.OX 4.8X 44,106.097 

<0.001.5X32,277.9 1.5X 16 

0.001 3.5X76,411.3 -- 114

0.0320.2% 4.1X249.5 8 Eastern 

0.0050.5X 0.7% 3,040.2 15 0.000O.OX O.OX 2,451.4 0 

0.004 0.7%--5,741.1 23

nfnfnf nf Eastern 

0.000O.OX O.OX 5,478.80 

0.000O.OX O.OX159.7 0

0.000O.OX--5,638.50

0.0100.3X 4.6X879.5 9 Eastern 0.002<0.1X 0.1%,215.5 2 

0.0811.0X 3.OX31383.5 

0.017 1.3X--2,478.5 42

0.00635.6X 2.1X 11,468.0 69 Eastern

0.058 31.1X 19.3X 10,855.3 625 

0.0352.0X 6.3X1,868.8 65 0.031 23.4X24,192.1 -- 759

0.011 54.1X 32%9,805.1 105 Eastern

0.067 53.2X 30 15,840.4 1,069 0.087 70.1X 2248,325.1 724

0.056 33,970.6 1,898 58.6X--

0.009 6.OX22,487.3 -- 194 Eastern

0.012 167,189.2 2,010 62.1X-- 

0.019 54,720.0 1,033 31.9X-- 0.013 244,396.5 3,237

of Areas 620, 621, 630, and 631;

and 

nf = No fishing.
262

r condition by observers in U.S. domestic groundfish catches in the

Gulf of Alaska region by species and gear type, 1990.

Excellent

DeadPoor

I'IUJt)ers I'IUJt)e XI'IUJt)ers rs Gear type

37.1X 223 40.5X 9859107 TrawlO.OX 100.OX 605 0 0

50.OX O 303

100.OX O 7 0 Trawl0

0 042.BX 33 24.91 416 320551 TrawlO.OX 0 062.5X 1 25.OX 21525.91 48.X 1377 TrawlO.OX 00 027.8X 66.7X 5.6X 1251
263

Table 60.--Biological data on the bycatch of king crabs in U.s.

domestic groundfish fisheries in the Gulf of Alaska

region, 1990.

Species

Red king

crab

Percent

by species

68.1%

Sex

Sex composition

Male 53.7

Female 46.3

Average

weight (kg)

3.36

1.44

Average

length (mm)

148.4

115.5

Golden king

crab

Couesi king

crab

Blue king

crab

30.3%

1.3%

0.3%

Male

Female

Male

Female

Male

Female

41.1

58.9

20.0

80.0

50.0

50.0

1.11

0.84

1.03

0.89

5.13

5.50

124.4

114.7

145.5

132.4

188.0

208.0
264

Table 61.--Common and scientific names of rockfish identified in

u.s. domestic groundfish catches in the Gulf of Alaska

region, 1990.

Common name

Darkblotched rockfish

Dusky rockfish

Harlequin rockfish

Northern rockfish

Pacific ocean perch

Redbanded rockfish

Redstripe rockfish

Rougheye rockfish

Sharpchin rockfish

Shortraker rockfish

Shortspine thornyhead

Silvergray rockfish

Yelloweye rockfish

Yellowtail rockfish

widow rockfish

other rockfish*

Black rockfish

Blue rockfish

Bocaccio

Canary rockfish

Copper rockfish

Greenstriped rockfish

Longspine thornyhead

Rosethorn rockfish

splitnose rockfish

stripetail rockfish

Tiger rockfish

Yellowmouth rockfish

scientific name

Sebastes crameri

Sebastes ciliatus

Sebastes varieaatus

Sebastes DolysDinis

Sebastes alutus

Sebastes babcocki

Sebastes Droriaer

Sebastes aleutianus

Sebastes zacentrus

Sebastes borealis

Sebastolobus alascanus

Sebastes brevisDinus

Sebastes ruberrimus

Sebastes flavidus

Sebastes entomelas

Sebastes melanoDs

Sebastes mvstinus

Sebastes DaucisDinus

Sebastes Dinniaer

Sebastes caurinus

Sebastes elonaatus

Sebastolobus altivelis

Sebastes helvomaculatus

Sebastes diDloDroa

Sebastes saxicola

Sebastes niarocinctus

Sebastes reedi

* The 12 species listed under "other rockfish" each made up less

than 0.1% of the rockfish catch in u.s. domestic groundfish

catches.
265

Table 62.--Rockfish species groupings in the Gulf of Alaska, and

the species associated with each group.

Species group

Demersal shelf

rockfish

Pelagic shelf

rockfish

Slope rockfish

Thornyheads

Associated soecies

Common name Scientific name

Canary rockfish Sebastes pinniaer

China rockfish

S. nebulosus

Copper rockfish

S. caurinus

Quillback rockfish

~. maliaer

Red banded rockfish

S. babcocki

Rosethorn rockfish ~. helvomaculatus

Tiger rockfish

S. niarocinctus

Yelloweye rockfish

~ • .r.uberrimus

Black rockfish

~. melanoos

Blue rockfish

mvstinus

Dusky rockfish

ciliatus

Widow

entomelas

Yellowtail rockfish

S • .ilavidus

Aurora rockfish

S. aurora

Blackgill rockfish

S. melanostomus

Bocaccio ~. paucisoinis

Chilipepper rockfish

aoodei

Darkblotched rockfish

S. crameri

Greenstriped rockfish

~. elonaatus

Harlequin rockfish

varieaatus

Northern rockfish

oolvsoinis

Pacific ocean perch

S. aleutus

Pygmy rockfish

wilsoni

Redstripe rockfish

S. ororiaer

Rougheye rockfish

~. aleutianus

Sharpchin rockfish

zacentrus ~.

Shortbelly rockfish

S. iordani

Shortraker rockfish

S. borealis

Silvergray

S. brevisoinus

Splitnose rockfish

~. dioloproa

Stripetail rockfish

S. saxicola

Vermillion rockfish

S. miniatus

Yellowmouth rockfish ~. reedi

Longspine thornyhead

Sebastolobus altivelis

Shortspine thornyhead

~. alascanus
Table 63.--Estlmated U.S. domestic rockfish catch (In metric tons) by species and NPFHC area in the Gulf of Alaska region, 1990.

Percent of

rockf AreaIAll sh65034 62018 areas catch 610

3,322.5 1,437.5 10,371.9 2,227.6 37.1 283.7 <0.1042.0X 3,063.5

990.5429 1,193.8 1,037.1 4,973.7 155.9 0.000 20.1X 653.4

1,615.5 974.9 3,532.3 397.2 8.200 62.814.3X 473.6

566.6 1,654.3 26.3 0.0 124.4 0.00.026.7X 936.8

411.9 2607 1,570.2 135.5 3409 24.2 0.06.4X 397.1471.1 761.2 1,553.1 136.5 0.6 10.1 9.8 1.06.3X 162.829.146.5 13.3 <0.1 220 19.7 334.0 1.4X 3.438.5 110.83.1 02 192.2 3.2 0.08.80.8X 17.576.7 371 0.0 139.1 5.6 000.6X 19.666.2 14.6 213 <0.1 0.0 133.4 0.0 0.00.5X 31.3

30.2 130 0.8 0.0 0.0 0.0 45.9 0.2X 1.842.2 0.011.0 44.2 0.2X 0.9

39.8 35 0.00.0 44.0 0.2X 0.8

26.40 0.02.1 00 34.6 0.1X <0.110.2 590 14.2 0.0 30.4 0.1X <0.1

24.8 5 60 0.90.0 39.3 0.2X 1.8

f\.J 

4,944.2 7,339.6 24,692.6 4,333.4 2,044.2 254.6 10.9 13 5,764.40'\

0'\

20.0X <1 29.7X LOX 17.6X 8.3X 23.3X

d are listed In Table 61.
267

Table 64.--Common and scientific names of flatfish identified in

u.s. domestic groundfish catches in the Gulf of Alaska

region, 1990.

Common name

Arrowtooth flounder

Butter sole

Dover sole

English sole

Flathead sole

Petrale sole

Rex sole

Rock sole

Sand sole

starry flounder

Yellowfin sole

other flatfish.

Alaska plaice

Curlfin sole

Deepsea sole

Longhead dab

Slender sole

scientific name

Atheresthes stomias

Pleuronectes isolepis

Microstomus pacificus

Pleuronectes vetulus

Hippoqlossoides elassodon

Eopsetta jordani

Errex zachirus

Pleuronectes bilineata

Psettichthvs melanostictus

Platichthvs stellatus

Pleuronectes asper

Pleuronectes quadrituberculatus

Pleuronichthvs decurrens

Embassichthvs bathvbius

Pleuronectes proboscidea

Eopsetta exilis

• The five species listed under "other flatfish" each made up less

than 0.1% of the flatfish catch in u.s. domestic groundfish

catches.
268

Table 65.--Flatfish species groupings in the Gulf of Alaska, and

the species associated with each group.

Species group

Arrowtooth flounder

Associated scecies

Common name Scientific name

Arrowtooth flounder Atheresthes stomias

Deep-water-flatfish Dover sole

Greenland turbot

Rex sole

Microstomus pacificus

Reinhardtius hiccoglossoides

Errex zachirus

Pleuronectes isolepis

Pleuronectes bilineata

Platichthvs stellatus

Pleuronectes ascer

Shallow-water flatfish Butter sole

Rock sole

Starry flounder

Yellowfin sole

All other flatfish

(except Pacific halibut)
Table 66.--Estlmated u.s. domestic flatfish catch (In metric tons) by species and NPFHC area In the Gulf of Alaska region,

--1990. ~ of 

Area flatfish

Total catch 650 680 630 631 640 620 621 610

18,913.3 1,049.0 7,235.0 8,084.2 37.2 471.0 221.8 15 1,803.6 54.4%

6,145.9 3,720.0 1,352.5 0.0 0.017.7% 147.3 4.1 922.1

1,449.8 3,650.0 2,005.6 50.0 28.9 4.110.5% 0.0 0.5 111.1

1,288.3 2,348.2 351.0 465.8 57.0 8.00.1 6.8% 0.0 178.1

1,683.3 1,962.2 77.3 114.0 8.6 1.20.6 5.6% 16.2 61.1

711.9 66.3 0.0 0.60 2.0% 0.32.5 642.2

337.5 363.1 0.0 0.0 2.1 6.3 1.0.00% 17.2

287.9 349.9 50.0 0.0 0.01.7.5.00% 4.5

117.7 127.5 0.0 0.0 1.8 0.4% 0.0 8.0

64.5 73.5 0.2% 0.0 3.74.9 0.4 <0.139.9 49.1 0.1% 7.4 0.0 0.01.8 0.0

28.0 29.6 0.1%9 0.1 0.00.0 0.70.1% 17.7 0.5 0.0 5.5 3.2 78 0.0 0.8

t\J

34,742.0 16,150.6 1,604.2 12,131.3 50.5 634.1 389.1 33 3,749.2 0\

\0

46.5% 34.9% 0.1% 4.6% 18 0.1% 1.1% 10.8%

h and are listed In Table 64.

271

SUMMARY OF OBSERVER SAMPLING OFF THE COASTS OF

WASHINGTON, OREGON, AND CALIFORNIA

Estimates of Domestic Groundfish Catches

Four U.S. catcher/processor vessels participated in domestic

fishing for Pacific whiting in 1990. These vessels voluntarily

carried observers and a·llowed them to sample their catches.

Fishing operations were conducted in November and December in the

Vancouver, Columbia, and Eureka International North Pacific

Fisheries Commission areas (Fig. 18). Observers sampled all

41 fishing days (100% coverage). Groundfish catches were based

solely on observer reports. The catch of Pacific whiting

accounted for 4,476 t (or 94.8%) of the 4,722 t of groundfish

caught (Table 67). Forty-six percent (113 t) of the bycatch of

other fish were from the "other species" group.

Bycatch of Prohibited Species

Pacific Salmon

Domestic catcher/processor vessels caught 617 chinook salmon

in 1990. No other species of Pacific salmon were observed in .

1990. Pacific salmon were caught at a rate of 0.131 fish/t of

Pacific whiting. By comparison, joint venture vessels caught

Pacific salmon at a rate of 0.058 fish/t of Pacific whiting in

1990 (Guttormsen et ale 1992b).

Pacific Halibut

Domestic catcher/processor vessels caught 58 Pacific halibut

(0.5 t), or at a rate of 0.013 fish/t of Pacific whiting. In

contrast, the joint venture Pacific whiting fishery incidentally

caught 75 Pacific halibut with a Pacific whiting catch of

172,069 t, or at a rate of less than 0.001 fish/to

Rockfish Catch by Species

Seventeen species of rockfish were identified in catches taken

by catcher/processor vessels in 1990 (Table 68). The "other"

rockfish group refers to the five species that each made up less

than 0.1% of the rockfish catch. Pacific ocean perch, which was

the major rockfish species caught, comprised 49.7 t (or 48.38%)

of the 102.7 t of the rockfish catch (Table 69), followed in

importance by darkblotched rockfish (Sebastes crameri, 26.3 t)

and shortspine thornyhead (17.1). The remaining fourteen species

accounted for 9.3 t.
272

Flatfish Catch by Species

Observers identified 12 species of flatfish in 1990

(Table 70). The "other" flatfish group refers to the two species

that each made up less than 0.1% of the flatfish catch. Of the

27.8 t of flatfish caught in 1990, 10.5 t were rex sole, 5.6 t

were English sole (Pleuronectes vetulus), 5.2 t were arrowtooth

flounder, 3.9 t were Pacific sanddab (citharichthvs sorididus,

and 1.5 t were flathead sole (Table 71). The remaining seven

species accounted for 0.9 t of the flatfish catch.
273

British Columbia

Washington

Northeast Pacific Ocean

Figure 18.--International North Pacific Fisheries

Commission statistical areas off the

coasts of Washington, Oregon, and

California.
274

Table 67.--Estimated catches in metric tons (t) of groundfish

reported by observers aboard U.S domestic catcher I

processor vessels operating in the Pacific whiting

fishery off Washington, Oregon, and California, 1990.

% of

Pacific 

whiting Discarded Total Retained

catch(t)

* *

4,475.5

Pacific ocean perch)

52.5 53.0 1.2 0.5

49.7 49.7 1.1 0.0<0.12.4

25.5 27.8 0.6 2.3

113.4 113.4 2.5 0.0

4,721.8 243.5 4,478.3

ches were not recorded in

1990.
275

Table 68.--Common and scientific names of rockfish identified by

observers aboard u.s. catcher/processor vessels

operating in the Washington-Oregon-California region,

1990.

Common name

Bocaccio

Canary rockfish

Darkblotched rockfish

Dusky rockfish

Greenstriped rockfish

Pacific ocean perch

Redbanded rockfish

Rougheye rockfish

Shortraker rockfish

Shortspine thornyhead

Splitnose rockfish

Yellowtail rockfish

Other rockfish.

Aurora rockfish

Redstripe rockfish

Stripetail rockfish

Yellowmouth rockfish

widow rockfish

scientific name

Sebastes DaucisDinus

Sebastes Dinniaer

Sebastes crameri

Sebastes ciliatus

Sebastes elonaatus

Sebastes alutus

Sebastes babcocki

Sebastes aleutianus

Sebastes borealis

Sebastolobus alascanus

Sebastes diDloDroa

Sebastes flavidus

Sebastes aurora

Sebastes Droriaer

Sebastes saxicola

Sebastes reedi

Sebastes entomelas

• The five species listed under "other rockfish" each made up

less than 0.1% of the rockfish catch in u.s. domestic

groundfish catches.
276

Table 69.--Estimated rockfish catch in metric tons (t) taken by

U.S catcher/processor vessels operating in the

Washington, Oregon, and California region, 1990.

Common name

Pacific ocean perch

Darkblotched rockfish

Shortspine thornyhead

Splitnose rockfish

Yellowtail rockfish

Shortraker rockfish

Rougheye rockfish

Canary rockfish

Dusky rockfish

Redbanded rockfish

Bocaccio

Greenstriped rockfish

*Other rockfish

Total

Catch (t)

49.7

26.3

17.1

2.7

2.3

1.0

1.0

1.0

0.5

0.3

0.2

0.2

0.1

102.7

Percent of

rockfish catch

48.38%

25.67%

16.61%

2.67%

2.25%

0.99%

0.99%

0.95%

0.47%

0.32%

0.23%

0.22%

0.08%

*Rockfish species that made up less than 0.10% of the total

rockfish catch are included in this category.
277

Table 70.--Common and scientific names of flatfish identified by

observers aboard u.s. catcher/processor vessels

operating in the Washington-Oregon-California region, 1990.

Common name

Arrowtooth flounder

CUrlfin sole

Dover sole

English sole

Flathead sole

Pacific sanddab

Petra Ie sole

Rex sole

Sand sole

Slender sole

Other flatfish*

Rock sole

Roughscale sole

scientific name

Atheresthes stomias

Pleuronichthvs de currens

Microstomus Dacificus

Pleuronectes vetulus

HiDDOqlossoides elassodon

citharichthvs sordidus

EODsetta ;ordani

Errex zachirus

Psettichthvs melanostictus

EODsetta exilis

Pleuronectes bilineata

Clidoderma aSDerrimum

* The two species listed under "other flatfish" each made up less

than 0.1% of the flatfish catch in u.S. domestic groundfish catches.
278

Table 71.--Estimated flatfish catch in metric tons (t) taken by

U.S catcher/processor vessels operating in the

Washington, Oregon, and California region, 1990.

Common name

Rex sole

English sole

Arrowtooth flounder

Pacific sanddab

Flathead sole

Dover sole

Sand sole

Slender sole

Petrale sole

CUrlfin sole

*Other flatfish

Total

Catch (t)

10.5

5.6

5.2

3.9

1.5

0.2

0.2

0.2

0.2

0.1

<0.1

27.8

Percent of

flatfish catch

37.99%

20.29%

18.71%

14.22%

5.51%

0.75%

0.73%

0.73%

0.73%

0.27%

0.09%

*Flatfish species that made up less_than 0.10% of the total

rockfish catch are included in this category.
279

CITATIONS

Alton, M. S., and R. G. Bakkala. 1966. Status of Alaska pollock

in the eastern Bering Sea. Unpub. manuscr., 25 p. Alaska

Fish. Sci. Cent., 7600 Sand Point Way NE., BIN C15700,

Seattle, WA.

Bakkala, R, W. Hirschberger, and K. King. 1979. The groundfish

resources of the eastern Bering Sea and Aleutian Islands

regions. Mar. Fish. Rev. 41(11):1-24.

Chitwood, P. E. 1969. Japanese, Soviet, and South Korean

fisheries off Alaska. Development and history through 1966.

U.S. Fish. Wildl. Serv., Bur. Commer. Fish Circ. 310.

Cobb, J. N. 1927. Pacific cod fisheries. Rep. U.S. Commer.

Fish., 1926, append. 7:385-499.

French, R., R. Nelson, Jr., and J. Wall. 1981. Results of U.S.

observer sampling on Japanese, U.S.S.R., Korean, and Polish

fishing vessels, 1979. Int. North Pac. Fish. Comm., Annu.

Rep. 1980:96-122.

Guttormsen, M., J. Gharrett, G. Tromble, J. Berger, and S. Murai.

1992. Summaries of domestic and joint venture groundfish

catches (metric tons) in the northeast Pacific Ocean and

Bering Sea, 1990. AFSC Proc. Rep. 92-06, 143 p. Alaska

Fish. Sci. Cent., Natl. Mar. Fish. Serv., NOAA, 7600 Sand

Point Way NE, Seattle, WA 98115-0070.
280

Guttormsen, M., R. Narita, and J. Berger. 1990. Summary of u.S.

observer sampling of foreign and joint venture fisheries in

the northeast Pacific Ocean and eastern Bering Sea, 1989,

84 p. U.S. Dep. Commer., NOAA Tech. Memo. NMFS F/NWC-189.

Guttormsen, M., R. Narita, and J. Berger. 1992. Summary of u.S.

observer sampling of foreign and joint venture fisheries in

the northeast Pacific Ocean and eastern Bering Sea, 1990,

78 p. U.S. Dep. Commer., NOAA Tech. Memo. NMFS F/AFSC-4.

Huppert, D. D. 1991. Managing the groundfish fisheries of

Alaska: History and prospects. Rev. Aquat. Sci. 4(4):339-

373 ••

Marasco, R., and W. Aron. 1991. Explosive evolution - The

changing Alaska groundfish fishery. Rev. Aquat. Sci.

4(4):299-315.

Nelson, R., Jr., R. French, and J. Wall. 1981. Sampling by U.S.

observers on foreign fishing vessels in the eastern Bering

Sea and Aleutian Islands region, 1977-78. U.S. Natl. Mar.

Fish. Serv., Mar. Fish. Rev. 43(5):1-19.
281

Williams, G., and T. Wilderbuer. 1991. Revised estimates of

Pacific halibut discard mortality rates in the 1990

groundfish fisheries off Alaska. In stock Assessment and

Fishery Evaluation for the Groundfish Resources of the

Bering Sea/Aleutian Islands Region as Projected for 1992.

Prepared by the Plan Team for the Groundfish Fisheries of

the Bering Sea and Aleutian Islands, North Pacific Fishery

Management council, P.o. Box 103136, Anchorage, AK 99510.

RECENT TECHNICAL MEMORANDUMS

Copies of this and other NOAA Technical Memorandums are available from the

National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22167.

Paper copies vary in price. Microfiche copies cost $3.50.

AES.Q:

4 GUTTORMSEN, M., R. NARITA, and J. BERGER. 1992. Summary of U. S. observer sampling

of joint venture fisheries in the northeast Pacific Ocean and Eastern Bering Sea, 1990, 78 p. NTIS

number pending.

3 JOHNSON, P. A., S. D. RICE, and M. M. BABCOCK (compilers). 1992. Impacts of oil pollution

and Prince William Sound studies: Bibliography of 1960-91 publications and reports, Auke Bay

Laboratory, 98 p. NTIS No. PB93-114064.

2 KAJIMURA, H., and E. SINCLAIR. 1992. Fur seal investigations, 1990, 192 p. NTIS No. PB93-

109080.

1 MERRICK, R. L., D. G. CALKINS, and D. C. MCALLISTER. 1992. Aerial and ship-based surveys

of Steller sea lions (Eumetopias iubatus) in southeast Alaska, the Gulf of Alaska, and Aleutian

Islands during June and July 1991, 41 p. NTIS No. PB92-235928.

F/NWC216 ZENGER, H. H., JR., and M. F. SIGLER. 1992. Relative abundance of Gulf of Alaska sablefish

and other groundfish based on National Marine Fisheries Service longline surveys, 1988-90,

103 p. NTIS No. PB92-222843.

215 KINOSHITA, R. K., B. M. K. BROOKE, L. E. QUEIROLO, and J. M. TERRY. 1992. Economic

status of the groundfish f,isheriesoff Alaska, 1990, 99 p. NTIS No. PB92-187699.

214 ANTONELlS, G. A. 1992. Northern fur seal research techniques manual, 47 p. NTIS No. PB92-

191824.

213 BAKKALA, R. G., W. A. KARP, G. F. WALTERS, T. SASAKI, M. T. WILSON, T. M. SAMPLE,

A.M. SHIMADA, D. ADAMS, and C. E. ARMISTEAD. 1992. Distribution, abundance, and

biological characteristics of groundfish in the eastern Bering Sea based on results of U.S.-Japan

bottom trawl and hydroacoustic surveys during June-September 1988, 362 p. NTIS number

pending.

212 WILSON, M. T., and C. E. ARMISTEAD. 1991. 1989 bottom trawl survey of the eastern Bering

Sea continental shelf, 212 p. NTIS No. PB92-135607.

211 LOW, L-L. (editor). 1991. Status of living marine resources off Alaska as assessed in 1991,

95 p. NTIS No. PB92-145713.

210 LOW, L-L. (editor). 1991. Status of living marine resources off the Pacific coast of the United

States as assessed in 1991, 69 p. NTIS No. PB92-145705.

209 KINOSHITA, R. K., D. A. COLPO, and J. M. TERRY. 1991. Oregon, Washington, and Alaska

exports of edible fishery products, 1990,48 p. NTIS No. PB92-115971.

207 LIVINGSTON, P. (editor). 1991. Groundfish food habits and predation on commercially important

prey species in the eastern Bering Sea from 1984 to 1986, 240 p. NTIS No. PB92-104710.