MARCH 1981 

ALBACORE TROLLING AND LONGLINE EXPLORATION IN 

EASTERN NORTH PACIFIC WATERS DURING 

MID- WINTER 1981 

R. Michael Laurs 

Ronald J. Lynn 

Robert Nishirnoto 

Ronald Dotson 

I'J 0 AA - TM - NMFS - S WFC - 1 0 

U.S. DEPARTMENT OF COMMERCE 

National Oceanic and Atmospheric Administration 

National Marine Fisheries Service 

Southwest Fisheries Center 
NOAA Technical Memorandum NMFS 

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NOAA Technical Memorandum NMFS 

. 

This TM series IS use0 !of 3ccd-?ntaiion ard timely commmcalton 01 prehmmary results. mter8m fe~om 3r 

sPec~al Purpose trfomat,or a”: -awe not recelved complete formal rewew. editonat control, or deutea eamg 

MARCH 1981 

ALBACORE TROLLING AND LONGLINE EXPLORATION IN 

EASTERN NORTH PACIFIC WATERS DURING 

MID-WINTER 1981 

R. Michael Laurs 

Ronald J. Lynn 

Robert Nishimoto 

Ronald Dotson 

National Marine Fisheries Service 

Southwest Fisheries Center 

La Jolla, California 92038 

This is a report of a study conducted cooperatively between the National .Marine 

Fisheries Service, Southwest Fisheries Center and Southwest Region, and the American 

Fishermen’s Research Foundation (AFRF). A major part of the funding was provided 

by Saltonstall-Kennedy funds awarded to AFRF. 

U.S. DEPARTMENT OF COMMERCE 

Philip M Klutznick. Secretary 

National Oceanic and Atmospheric Administrat ion 

Richard A Frank. Aaminisirator 

National Marine Fisheries Service 

Terry L Leitzell, Assistant Administrator for Fisheries 
SUMMARY 

c 

Three chartered commercial fishing vessels using modified halibut 

longl ining gear conducted an exploratory albacore longl ining operation 

700 to 900 n. miles west of San Diego during January-February 1981. 

vessel fished approximately 300 hooks per longline set in and about the 

thermocline at depths of 300 to 450 feet. 

300 hooks/day, ranged from 0 to 37. Excluding the initial several sets 

which were largely experiments with gear, the mean albacore catch was 24, 

equivalent to 8 fish per 100 hooks. 

higher; however, fish loss averaged 16% per set due to line twisting, 

which can be greatly reduced by gear modification. 

two size groups, 12-20 pounds and 25-35 pounds. The overall average weight 

was 23 pounds. Extrapolating the catches made during the survey indicate 

that albacore production may average 3000 pounds per set using a longline 

with 1500 to 2000 hooks. 

Each 

Daily catches, standardized to 

The catch rate would have been even 

The catch fell into 

If these catches for this very modest effort prove to be representative 

af the season and region, then there is a strong potential for expansion 

of the United States albacore fishery. However, Kore exploratory effort is 

needed 1) to substantiate these initial findings, 2) to expand our knowledge 

of albacore distribution in time and space, 3) to understand further the 

relation of ocean features to albacore distribution, and 4) to improve gear 

and fishing operations. 

1 
INTRODUCTION 

The objective of this investigation was to evaluate the potential for 

establishing a U.S. fishery on the southern substock of North Pacific albacore 

tuna during winter months in eastern North Pacific waters. 

hundred miles off the ;east of southern California and extending nearly to 

the Hawaiian Islands was selected for the study. 

does not operate in the winter, and in the selected area limited exploratory 

troll fishing has taken place only during other seasons of the year. 

The purposes of the study were: 

trolling and longline fishing methods to evaluate the feasibility of 

catching a1 bacore, 2) to make scientific observations to determine 

oceanographic conditions that may influence a1 bacore distribution and 

relative abundance in the area, and 3) to collect data for albacore 

biology and fishery studies. The scientific observations that were 

planned included: (a) acoustic tracking to investigate vertical distribution 

and temperature relationships of albacore found in the area, (b) vertical 

and surface ocean temperature measurements, (c) a1 bacore tagging for 

An area several 

The U.S. albacore fishery 

1) to conduct exploratory fishing using 

migration and stock structure studies and (d) collection of detailed 

records on fish catch, amount of gear fished, modifications made to 

fishing gear and fishing tactics, and size composition of fish caught. 

BACKGROUND AND PLANNING 

This study was carried on cooperatively between the National Narine 

Fisheries Service, Southwest Fisheries Center (SWFC) and the U.S. 

a1 bacore fishing industry American Fishermen's Research Foundation (AFRF). 

Saltonstall-Kennedy funds awarded to the AFRF were used to charter fishing 

vessels and finance other costs to conduct the study. Fishery scientists 

2 
at the SWFC planned the overall study and worked with the AFRF to organize 

it. The actual operational aspects of the study were carried on by the 

AFRF. In addition, the SWFC provided scientific equipment and three 

fishery scientists went aboard one of the chartered fishing vessels to 

make scientific observations and keep detailed records related to the 

fishing operations. 

. 

Scientists at the SWFC reasoned that albacore might be available in 

high seas regions between California and Hawaii in winter for an expansion 

of the U.S. fishery based on results of earlier studies conducted cooperatively with AFRF, albacore fishery data from foreign fisheries, and 

albacore tag release-recovery data. 

major division in the migratory patterns of albacore which comprise the 

U.S. west coast fishery. This division and other evidence suggest that 

there may be at least two groups or substocks of albacore in the North 

Pacific Ocean. The northern group migrates large distances across the 

North Pacific between the North American coast off the Pacific Northwest 

and regions in the western Pacific off Japan and is the target of active 

fisheries along these routes during most seasons. 

k-noh about the southern group before it appears in and after it departs 

the seasonal fishery off California-Baja California. Tagging studies do 

indicate, however, that fish belonging to the southern group do not 

migrate in any appreciable numbers to the western Pacific 

migrate to waters in the central North Pacific during winter months. 

addition, the SWFC studies have shown that albacore are available 1 to 

1-1/2 months prior to the traditional fishery in a region 600 to 1200 nm. 

west of San Diego and that their distribution is associated with 

Earlier SWFC research revealed a 

Considerably less is 

but probably 

In 

3 
the presence of the subtropical ocean front. The subtropical front is a 

zone of enhanced gradient in temperature and salinity that extends 

across the greater part of the North Pacific meandering about latitude 

32" N. 

circulation patterns. ~ 

It exists as a signature o 

The Japanese, and more recent 

' major horizontal and vertical 

y the Koreans and Taiwanese, catch 

tunas and billfishes on longlines in the North Pacific subtropical zone 

during winter. 

their catch (by number) in the subtropical North Pacific. Japanese, 

Taiwanese, and Korean fishermen have returned fish tags from longlinecaught albacore that were tagged and released during a cooperative 

SWFC/AFRF a1 bacore tagging program. 

Japanese center about 32"N and extend from 133"W (800 n. miles off 

Cal i fornia) westward across the North Pacific. 

It is estimated that albacore comprise about 40% of 

The catch locations provided by the 

The distribution and vulnerability of albacore, like other tunas, 

are largely affected by ocean temperature and vertical thermal structure. 

Surface temperatures favorable to the presence of albacore are found in 

a broad band about the subtropic front in winter. 

off California and beyond the thermocline is deep, typically 300 

In the region 600 n.m. 

to 400 feet, and shoals towards the coast. 

on albacore by the SWFC show these fish to spend most of their time in 

the thermocline. Therefore, a1 bacore are most likely to be vulnerable 

to longline gear that is designed to fish at these depths. 

regions where the thermocline is shallower (nearer the coast) troll ing 

gear might still be effective. 

Sonic tagging studies conducted 

In ocean 

4 
The area targeted for exploratory operations was due west of San 

Diego (about 32"N) principally beyond several hundred n.m. offshore 

and extending westward to practical limits of operational logistics. Within 

this vast area plans provided that prevailing temperature and temperature 

fronts would be a determining factor in concentrating fishing efforts. 

Longlining efforts were expected to have greater potential beyond 600 n. 

miles from the coast. 

(expendable bathythermograph) traces would be used to determine the 

desirable depth range for longlining gear. 

1 

The depth of the thermocline derived from XBT 

METHODS 

FISHING VESSELS 

Three commercial fishing vessels were selected by competitive bid 

for charter by the AFRF to carry on the study. The names of the fishing 

vessels, owners/captains and lengths are given in Table 1. 

Table 1. Fishing vessels chartered for study. 

- .Vessel Name Owner/Captain Length 

Norcoaster Elwin Cox 70 ft. 

Taasi nge Herman Haggren 75 ft. 

Vinl and Frank Partins 50 ft. 

'Thermal distributions based upon satellite imagery would be sent to the 

vessels by radiofacsimile as available. 

5 
Three SWFC fishery scientists (Ronald Dotson, William Flerx and 

Robert Nishimoto) were on board the F/V Taasinge during the cruise to make 

scientific observations and assist in fishing operations. 

AREA AND DATES OF STUDF 

Field operations were conducted between January 13 and February 

11, 1981 in an area extending about 200 to 800 miles west of San Diego, 

California. A drawing of the cruise track and areas of longline fishing 

operations is shown in Figure 1. 

DESCRIPTION OF LONGLINE FISHING GEAR AND OPERATIONAL METHODS 

Although longlining is an important fishing method used by foreign 

tuna fishermen, it has not been used by U.S. west coast fishermen to 

fish for tuna. 

northern halibut, black cod and rockfish. Halibut longline fishing 

gear, modified to be similar to that used by the Japanese to fish for 

tuna, was used by the three chartered fishing vessels in this study. 

While the vessels were at sea, additional modifications were made to the 

gear and methods of fishing it to increase its effectiveness and ease of 

hand1 i ng . 

Longlining is used by U.S. fishermen, however, to catch 

6 
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mf 

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73 

7 
Longline Fishing Gear Description 

The longline gear consisted of a series of buoy lines suspended 

from the surface by floats, a main line attached to the buoy lines, and 

gangions with baited hgoks suspended from the main line. Figure 2 gives 

a schematic sketch and identification of the components of the longline. 

The general design of the longline used by each of the vessels was 

similar; however, there were some differences in materials and details 

of construction. 

each set (where information is available) are given in Appendix 1. 

Schematic diagrams of the gear used by each vessel for 

Buoy Line 

The Norcoaster and Taasinqe used buoy line constructed of 1/4 

inch, three strand, right-hand lay nylon. This line, which is negatively 

buoyant, is used in the construction of halibut longline gear. No 

weight was used on the end of the buoy line by the Taasinge, however, a 

weight was used on some sets by the Norcoaster. The Vinland used 1/4 

inch polypropylene line with about a one-pound weight on the end. 

vessels did considerable experimentation with buoy 1 ine lengths. The 

early sets made by the Taasinge were with 150 foot buoy lines and the 

last half of the sets with alternately placed 300 and 450 foot lengths. 

Most of the sets made by the Vinland were with 300 foot buoy lines. The 

Norcoaster varied the buoy line lengths, often times within the same 

set and between sets, with lengths ranging from 120 to 460 feet. (See 

schematic diagrams of longline sets given in Appendix 1). Usually eighteen 

inch diameter inflatable polypropylene floats were used for buoys, and 

usually every fourth to sixth buoy line was outfitted with a staff and 

The 

8 
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(3 

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a 

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4- 

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9 
flag. The buoy line was attached to the main line with salmon snaps 

(see Figure 2). 

Main Line 

P 

The main line used by all three vessels was constructed of the 

same type of 1/4 inch, three strand, right-hand, lay nylon used by the 

Norcoaster and Taasinge for buoy lines. Usually one skate of main line, 

1800 feet, was used between buoy lines on the Taasinge and Vinland and 

one to several 

The Norcoaster typically fished 10 to 12 skates per set, the Taasinqe 11 

to 15, and the Vinland 8 to 12. 

skates on the Norcoaster (see drawings in Appendix 1). 

Gangions 

Each of the vessels started the trip using 9-24 foot ganqions 

constructed of 6-18 feet of 1/8 inch, polypropylene line and 3-6 feet of 

175 pound test, twisted, stainless steel wire. This design of gangion 

proved to be unsatisfactory because of difficulties in handling and 

severe tangling and twisting problems. 

erable experimentation with gangions using a number of different materials 

and varying lengths. The Taasinge and the Norcoaster eventually settled 

on using 6 to 9 foot gangions constructed entirely of 200-300 pound-test 

Each of the vessels did considand used this design successfully for the latter half of 

The Vinl and continued to use the polypropyl ene/wi re combi naon , but shortened the polypropyl ene portion to about 4-1 /2 

monofi 1 ament 

their sets. 

tion of gang 

feet. However, when the wire portion of a gangion became tangled or 

kinked due to catching a fish or twisting, the entire gangion was replaced 

10 
e 

. 

with one made of 6-8 foot 250 pound-test monofilament. 

trip the Vinland had about 50% monofilament gangions and 50% polypropylenelwire 

combination. 

used during each longline set for each vessel is given in Appendix 1. 

At the end of the 

Information on the types of materials and lengths of gangion 

The gangions were attached to the mainline by salmon snaps 

(see Figure 2). The spacing between gangions on the main line was 90 

feet on the Vinland and 60 to 90 feet on the Norcoaster and Taasinge. 

Hooks 

The Norcoaster used a combination of Mustad No. 39960 size 8 tuna 

circle hooks and Japanese longline size 34 hooks on the first 8 longline 

sets and the Mustad tuna circle hooks only on sets 9 through 12. The 

Taasinge used a combination of Mustad No. 39960 size 8 tuna circle hooks 

and Japanese longline sizes 34 and 38 hooks on sets 1 through 5, and the 

Mustad tuna circle hook on the remainder of the sets. The Vinland used 

mostly Mustad No. 39960 size 9 tuna circle hooks which were modified by 

offsetting the point by 1/8 to 3/16 inch and Japanese longline size 34 

hooks, but also experimented with a limited number of 9/0 rock cod hooks 

-. 

and size 8/0 tuna circle hooks. 

Bait 

Frozen saury and squid were used for bait. The saury were 8 to 10 

inches long and weighed 5 or 6 per pound. 

long and weighed 3 or 4 per pound. 

hooks baited with saury and half with squid with either alternate hooks 

The squid were 6 to 10 inches 

Most sets were made with half the 

11 
or all the hooks on alternate skates baited with the same kind of bait. A 

small number of sets were made using only squid as bait. 

and hooks were baited just prior to each set on the Norcoaster and the last 

9 sets made by the Taasinge. On all sets made after the first set by the 

Vinland and early sets *made by the Taasinge, the hooks were baited at the 

time the gear was hauled. The gangions with the rebaited hooks were then 

placed in tubs and put in the fish hold to be refrozen and held until the 

next set was made, usually the following day. 

Bait was thawed 

Setting the Longline 

The longline was set from the stern of the vessels, however, the 

details of setting differed on each vessel. 

was stored on the drum of a hydraulic-powered winch. The drum of the 

winch was put into freespool for setting the gear and the tension regulated 

by a friction brake. 

On the Taasinge the main line 

Buoy lines were attached to the main line by a 

salmon snap, usually at one skate (1800 ft.) intervals, and the buoys 

and flags were put over the stern after the buoy line had been paid out. 

Gangions were attached to the main line with 

90 foot intervals as the line was paid. 

salmon snaps at about 60 to 

On the Norcoaster the gangions were not removed from the main line 

between sets, and both were coiled and stored together in tubs with the 

hooks hung on the upper edge of each tub. 

to paying the main line and gangions out over the stern. On the Vinland 

the main line was also stored coiled in tubs, but separate from the 

gangions. When the gear was set the main line was paid out and the 

The hooks were baited just prior 

12 
gangions were attached to it with salmon snaps. The procedures used 

by the Norcoaster and Vinland for attaching the buoy lines were similar 

to those followed by the Taasinge. 

The gear on all boats was set at a speed of 5 to 7 knots and usually 

required approximately one hour to set 10 to 12 skates. Most of the 

sets were made at or just prior to first light between 0700 and 0800 

PSI, and each vessel made one set in the afternoon. The direction that 

the gear was set varied depending on sea and wind conditions, and was also 

varied to test the relation of fishing success to the direction of set. 

Information on the direction each set was made is given in Appendix 1. 

Hauling in the Longline 

The haulback was started about 4-1/2 to 6 hours after the last buoy 

was set. 

the Norcoaster and Vinland, the last skate of gear set was picked up 

first, and on 5 of the Taasinge's sets, the haulback was started with 

the -. first skate set (see Appendix 1). 

retrieved near midship on the starboard side at a vessel speed of 

approximately two knots. Line haulers were used to pull the main line 

On 9 of the sets made by the Taasinge and all the sets made by 

On all the vessels the gear was 

aboard the Vinland and Norcoaster and a hydraulic winch was used aboard 

the Taasinqe. 

vessels. On the Vinland the gangions were unsnapped from the main line, 

the hooks rebaited, and the line coiled and put into tubs and stored in 

the fish i-old. The main line was coiled into tubs each holding about 

one-half a skate, and stored on the stern. On the Norcoaster the gangions 

were not removed from'the main line and both lines were coiled and stored 

Buoy lines were pulled and coiled by hand on all three 

13 
together in tubs with the points of the hooks over the edge of each tub. 

On the Taasinge the gangions were unsnapped from the main line, any 

remaining bait removed, and the line coiled and stored in tubs with the 

hooks hung over the edges of the tubs. 

on the drum of the hydcaulic winch. 

longline were usually brought on board the vessels with a gaff. 

time required to complete the haul in operations was about 3 to 5 hours 

(see Appendix 1 ) . 

The main line was hauled and stored 

Albacore that were caught on the 

The 

TROLL FISHING 

Trolling was conducted along the track shown in Figure 1. Conventional albacore trolling jigs and fishing techniques were used and 

each vessel fished 8 to 12 lines. 

were made, all three vessels trolled from dawn to dusk. 

longline sets were made, the Norcoaster and Vinland usually trolled in 

the vicinity of the longline while the gear was "soaking." 

On most days when no longline sets 

On days when 

SCIENTIFIC OBSERVATIONS 

ACOUSTIC TRACKING OF ALBACORE 

It was planned to conduct acoustic tracking experiments to make 

measurements of albacore depth distribution and to determine albacoreocean temperature relationships. However , electronic instrumentation 

failure prevented these experiments from being done. 
OCEAN TEMPERATURE MEASUREMENTS 

Vertical profiles of ocean temperature down to approximately 1500 feet 

were measured with a Sippican Mark 4 Recorder-T4 Probe Expendable Bathythermograph System (XBT). XBT drops were made by each vesselZ usually once 

a day when only troll fishing was conducted, and up to several XBT drops 

were made in conjunction with each longline set. 

(SST) measurements were monitored frequently on the Vinland and Norcoaster 

using electronic thermometers with readouts in the wheelhouse. SST 

Sea surface temperature 

measurements were made on the Taasinge using a bucket thermometer. 

FISH TAGGING 

Floy spaghetti-dart tags were used to tag a selected number of 

a1 bacore on each vessel. 

whole centimeter, were made on each fish tagged and released, and the 

position, date, and SST were also recorded. 

Fork length measurements, to the lower 

FISHING AND CATCH RECORDS 

Long1 i ne Fi s hi ng, 

Records were kept on each vessel related to the longline fishery 

operations. These records usually included: date, times and locations at 

the start and completion of the set, haulback time, number of skates of 

2XBT on Vinland failed early in the cruise. 

15 
main line used, depth of buoy lines and distance between attachment of 

buoy lines to the main line, number and type of materials and lengths of 

gangions, type of bait, and weather and sea conditions. On the Norcoaster 

the location on the longline where each albacore was caught was recorded; 

whereas, on the Vinland only the total number of albacore caught on a set 

was recorded. 

- 

In addition to the information indicated above, special records 

were kept on the Taasinge for each hook as the longline was hauled 

aboard after a set. This information included: whether or not there 

was bait an the hook, hook lost or straightened, species of fish caught, 

fish that were hooked but lost and any malfunctions in the gear. 

Troll Fishing, 

On days when only troll fishing operations were conducted 

records were kept on the date, times and locations at the start and finish 

of trolling, and numbers of fish caught. 

conjunction with a longline set, only the general location of the trolling 

and total number of fish caught were recorded. 

When trolling was conducted in 

SIZE MEASUREMENTS OF ALBACORE 

On the Taasinge fork length measurements were made on all albacore 

caught. On the other vessels fish weights were estimated and the range 

and predominant size noted for each day's catch. 

16 
OTHER OBSERVATIONS 

Surface weather observations were recorded in conjunction with XBT 

drops and longline sets. 

birds were noted, however, no regular watch was maintained to make these 

types of observations. 

Incidental sightings of marine mammals and shore 

LOGISTICAL SUPPORT 

Forecasts of weather and sea conditions were very important to the 

fishermen because of the frequent high winds and rough seas that were 

encountered during the study. Weather charts prepared by the National 

Weather Service were received daily via radiofacsimile broadcast by the 

Vinland. The information contained on the charts was usually considered 

adequate, but often not timely. The special 5-day weather/sea condition 

narrative out ooks prepared by Ocean Data Systems, Inc., part of a NASAJet Propulsion Laboratory experimental Sate1 lite Data Distribution 

System project, were also relayed to the vessels by radiotelephone from 

the Western Fishboat Owners Association (radio call sign WHG). According 

to the fishermen these forecasts were excellent and were valuable for 

planning fishing operations. 

-. 

Information on ocean temperature frontal conditions was a1 so 

broadcasted via radiofacsimile to the Vinland in support of the study. 

Satellite passes were received at the Scripps Institution of Oceanography 

Remote Sensing Facility and the infrared imagery was processed by SWFC 

17 
personnel. 

prepared and transmitted via radiofacsimil e by NMFS-1 icensed radio 

station WWD. 

Charts showing the locations of temperature boundaries were 

3 RESULTS 

AtBACORE CATCHES MADE LONGLINING 

Information for each longline set listing the date, location; 

number of hooks fished, number of albacore caught per set, and number of 

albacore caught per 100 hooks is given in Tables 2 to 4 (also see Appendix 1). 

For the Taasinge the number of fish caught per 100 hooks ranged from 0 

to 12.2 and averaged 4.6 (Table 2); for the Vinland it ranged from 0 to 

10.5 and averaged 5.5 (Table 3); and for the Norcoaster it ranged from 0 to 

6.3 and averaged 2.6 (Table 4). Some care should be exercised when 

using the information given in Tables 2-4 to evaluate the potential for 

1 ongl i ning because 1 ) know1 edge gained from experimental changes in the 

gear during the early sets appears to have resulted in increased catches 

in the latter sets, and 2) the catch rates given in the Tables do not 

include fish that were lost. 

for the Taasinge, which caught a total of only 22 albacore during the 

first 6 sets for an' average catch rate of 1.1 fish per 100 hooks, but 

caught a total of 216 fish during sets 7 through 13 for an average catch 

rate of 7.4 fish per 100 hooks. 

These points are probably especially true 

Records kept on the Taasinge showed that the number of fish lost 

averaged 16% and was as high as 31%, e.g., set No. 7 (See.AppendYx 1). 

18 
Number 

1 

2 

3 

4 

5A 

58 

6 

7 

8 

9 

10 

11 

12 

13 

14 

Table 2.. Summary of albacore longline catch and effort information 

for F/V Taasinge 

Date 

21 Jan 81 

22 Jan 81 

23 Jan 81 

24 Jan 81 

25 Jgn 81 

25 Jan 81 

26 Jan 81 

28 Jan 81 

29 Jan 81 

30 Jan 81 

31 Jan 81 

1 Feb 81 

2 Feb 81 

3 Feb 81 

5 Feb 81 

Start Position of Longline Set 

31 " 04 ' N , 1 31 " 29 ' W 

31 "08 IN, 131 "48 ' W 

31"18'N, 133"40'W 

31"18'N, 134"20'W 

31"08'N, 134'40'W 

31 "24'N, 134'36 'W 

31 "24'N, 134"20'W 

31 "40'N, 134"29'W 

31 "30 ' N , 1 34 "1 7 ' W 

31 "26'N, 134'13'W 

31"15'N, 134'46'W 

31"14'N, 134'43'W 

31"05'N, 134'50'W 

31"05'N, 134'53'W 

32 "49 ' N , 1 32 "28 ' W 

Totals 

# of 

Hooks 

37 5 

2 53 

261 

346 

3 68 

105 

296 

341 

343 

386 

3 91 

483 

474 

487 

350 

5259 

# of 

A1 bacore 

2 

2 

0 

0 

11 

1 

6 

26 

35 

18 

32 

14 

58 

33 

2 

240 

Ca

100 

0

0

0

0

3

1 

2

7

10

4

8

2

12

6

0

4

19 
Number 

1 

2 

3A 

36 

4 

5 

6 

7 

8 

9 

10 

11 

12 

Table 3. Summary of albacore longline catch and effort information 

for F/V Vi nl and 

Date 

23 Jan 81 

24 Jan 81 

25 Jan 81 

25 Jan 81 

26 Jan 81 

28 Jan 81 

29 Jan 81 

30 Jan 81 

31 Jan 81 

1 Feb 81 

2 Feb 81 

3 Feb 81 

5 Feb 81 

Start Position of Longline Set 

31'24'N, 134'18'W 

31 'ZO'N, 134'22'W 

31'31 'N, 134'36'W 

31 "31 N, 134'36'W 

31 '35'N, 134'26'W 

31 '40'N, 134'31 'W 

31 '22'N, 134'26'W 

31 '25'N, 134'20'W 

31'12'N, 134'42'W 

31 '14'N, 134'49'W 

31"02'N, 134'54'W 

31 '02'N, 134'54'W 

32'40'N, 132'11 'W 

Totals 

# of 

Hooks 

150 

180 

2 00 

100 

3 00 

2 00 

200 

21 7 

300 

3 00 

300 

300 

3 00 

3047 

# of 

A1 bacore 

0 

9 

14 

5 

13 

3 

21 

17 

16 

22 

31 

15 

2 

168 

Catch/ 

100 Hoo

0.0 

5.0 

7.0 

5.0 

4.3 

1.5 

10.5 

7.8 

5.3 

7.3 

10.3 

5.0 

0.7 

5.5 

20 
Table 4. Summary of albacore longline catch and effort information 

Number 

Test 

1 

2 

3A 

38 

4A&B 

5 

6 

7 

8 

9 

10 

11 

12 

Date 

16 Jan 81 

23 Jan 81 

24 Jan 81 

25 Jan 81 

25 Jan 81 

26 J-an 81 

28 Jan 81 

29 Jan 81 

30 Jan 81 

31 Jan 81 

1 Feb 81 

2 Feb 81 

3 Feb 81 

5 Feb 81 

- 

for F/V Norcoaster 

Start Position of Longline Set 

Near 33"N, 123'45'W 

31'06'N, 134'24'W 

31 '22'N, 134'30'W 

31 "ZO'N, 134'37'W 

31'20'N, 134'37'W 

31'07'N, 134'54'W 

31 "31 IN, 134'38'W 

31 'ZO'N, 134'30'W 

31 '1 0 ' N , 135'00 ' W 

31'15'N, 135'01 'W 

31'20'N, 135'02'W 

31'10'N, 134'54'W 

31'00'N, 134'50'W 

32'47 'N, 132'33 'W 

Totals 

# of 

Hooks 

- 

27 5 

27 5 

275 

75 

250 

250 

200 

150 

300 

300 

300 

350 

300 

3300 

# of 

A1 bacore 

0 

0 

2 

3 

0 

3 

6 

2 

6 

2 

18 

20 

22 

2 

86 

Cat

100 

0.0 

0.0 

0.7 

1.1 

0.0 

1.2 

2.4 

1 .o 

4.0 

0.7 

6.0 

6.2 

6.3 

0.7 

2.6 

21 
Fishermen on the other two vessels estimated similar fish losses. Most 

of the times when albacore were caught, the gangion was twisted around 

the main line. There were some instances when albacore were observed to come 

off the hook during the final stage of hauling the gear because the 

gangion twisted so tightly around the main line that the hook tore out 

of the fish's mouth. 

were badly twisted and kinked, indicating that a fish had been hooked, 

but had been lost. 

opah and one mako shark) were caught on the longline, it is believed 

that often when twisted and kinked gangions were recovered without fish, 

it resulted from a1 bacore that had been hooked and subsequently lost. 

If the latter is true, and the number of twisted gangions without fish 

plus the number of albacore that were actually observed to come off the 

hook are included in determining hooking rate, the catch per 100 hooks 

for the Taasinge for sets Nos. 7 to 13 would be increased from 7.4 to 

8.8. 

There were also a number of cases where the gangions 

Since no other tunas or other heavy fish (except one 

Comparison of the albacore catch rates, expressed in the number of 

fish caught per 100 hooks, made by the 3 U.S. vessels during this study 

with a1 bacore catch rates publ ished for Japanese tuna longline operations 

conducted in the years 1969 to 1977 (the last year published data are 

available) in the areas between 30 to 35"N, 130" to 135"W and 30" to 

35"N and 135' to 140OW (Table 5) , show that catch rates made by the 

chartered U.S. vessels are 1 to 2 orders of magnitude higher than those 

publ ished for Japanese long1 iners. 

22 
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23 
ALBACORE CATCHES MADE TROLLING 

Information on catches of albacore made by trolling is given in Figures 

3, 4, and 6. 

between about 123" to 1?7"W. 

in this area and made catches up to about 40 to 45 fish per boat per day. 

Shoreward of about 123"W jig catches were usually zero. Westward of about 

127"W troll catches were usually less than one-half of those reported from 

between 123" to 127"W (see Figure 6). 

The area of best troll catches along the cruise track was 

Fishermen reported good signs for jig fishing 

In summary, results from the study showed 1) that the signs were good 

for trolling and that reasonably good catches were made trolling inshore 

of where most of the longline operations were conducted and 2) that 

trolling for the most part was not successful in the area further 

offshore where good catches were made on longlines. 

SIZE COMPOSITION OF ALBACORE 

The size composition of albacore caught by trolling and by longline 

aboard the Taasinge are shown in Figure 5. In general the troll caught 

fish were smaller than the longline-caught fish. Three size groups were 

caught trolling--about 3 to 4 pounds, 7 to 9 pounds and 12 to 20 pounds. 

Mostly two size groups were caught by longline--about 12 to 20 pounds and 

25 to 35 pounds. 

The relatively large proportion of 12 to 20 pound fish caught during 

the study is especially interesting. This size of fish usually makes up 

24 
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X 

X 

0 

00 

0 

00 

0 

X 0 

X 

I I 1 I I I I I I I I I I I I 1 I IIIII 

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25 
od d 

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27 
the major part of the commercial catch taken during the normal albacore 

fishing season off California. 

occurrence of this size of fish in the commercial catch was very low. This 

was an important factor contributing to the lower than average tonnage 

of albacore caught offaCalifornia during these years. 

this study suggest that perhaps the 12 to 20 pound fish may have been 

distributed further offshore than the fleet operated during the 1980 

fishing season or that fish in this size group were distributed deeper 

than usual and were not vulnerable to surface fishing methods. 

However, in 1979 and again in 1980 the 

The results from 

ALBACORE CATCHES IN RELATION TO OCEAN TEMPERATURE CONDITIONS 

Sea surface temperatures generally ranged from 62" to 65°F and were 

very nearly 64°F for all longline sets. 

thermocline increased from 150 feet near 12O"W to over 400 feet west of 

130"W (Figure 6). Troll catches were greatest between 123" to 127"W 

where changes in thermocline depth were most abrupt. 

thermal structure are suggestive of frontal regimes associated with the 

outer boundary of the California Current. 

catches decreased (as did the trolling effort). 

was a subsurface temperature maximum in which temperatures exceeded 65°F 

or sometimes 66OF. 

cline may have acted to repress troll catches. 

The depth to the top of the 

These changes in 

Westward of 130"W the troll 

In this region there 

This feature and the greater depth of the thermoRepresentative longline catches for seven days are shown plotted on 

a vertical section of temperature in Figure 7. 

standardized to a 300-hook set (the average number of hooks used per set 

The catch values were 

28 
I 

0 

IU 

0 

.w 

c1: 

0 

0 

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m 

a 

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0 0 0 0 

0 0 0 0 

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&

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-

29 
C 

30c 

60C 

90C 

1,200 

LONGITUDE (between latitude 31-32ON) 

435"W 134OW 

\ 

50" / A 

Figure 7. Vertical section of temperature crossing the longline survey region 

(approximatelv 70 nautical miles). Thermocline is shown by shading. Representative longline catches are plotted in circles with vertical 

bar denoting the estimated range of depths the gear was set. 

30 
throughout the survey) and averaged among the vessels. 

section, derived from XBT drops, cuts across the region where longlining 

effort was concentrated from January 24 through February 3. In this 

figure most of the catches are seen to occur near the base of the surface 

mixed layer and the upper levels of the thermocline. Prevailing sea 

surface temperatures were near 64°F while subsurface temperatures in the 

vicinity of the longline were typically 60 to 62°F. The high catch of 34 

albacore occurs near a weak thermal front which depressed the isotherms. 

This co-occurence supports the earlier findings that thermal fronts have 

a tendency to aggregate albacore. 

The temperature 

TEMPERATURE FRONTS DERIVED FROM SATELLITE IMAGERY RELATED TO ALBACORE CATCH

Albacore troll catches are shown plotted on ocean thermal fronts 

derived from satellite infrared imagery in Figure 8. The satellite image 

was obtained through a large opening in the cloud deck on February 9 as 

the vessels were trolling on their return leg. The clouds are shown by 

shading. Within the opening the ship track for February 5 through 9 is 

shown as a heavy dashed line and daily troll catches by each vessel are 

piot'ted nearby. Thermal fronts were located and are depicted in Figure 8 

as heavy meandering lines. Regions of cool, intermediate and warm waters 

are indicated and their estimated temperatures are given in the key. The 

vessels recorded a steady temperature of 62°F on February 6 through 8 

and 61.5"F early on February 9. Troll catches ranged from 10 to 30 

albacore. On February 9 the vessels crossed a thermal front near 

32"20'N, 123"OO'W where temperature dropped 1°F to 60.5"F. Thereafter 

only 2 albacore were taken. 

boundary to albacore distribution. 

Thus the thermal fronts appeared to be a 

31 
a 

ww 

EL 0. xu 

L 0- 

aJIIa 

wm -0 

'"mw 

+w+ 

s =r+ 000 

Ll-- 

LCV n 

32 
ALBACORE TAGGING 

A total of 56 albacore was tagged and released during the study. 

All the fish tagged were caught by trolling. 

almost without exception unsuitable for tagging because they were dead 

Fish caught by longline were 

or appeared near to death. 

released by 1" squares is shown in Figure 9. 

A summary of the number of fish tagged and 

FISH CAUGHT IN ADDITION TO ALBACORE 

No species of tuna other than albacore and only a limited number 

on non-tuna species of fish were caught on longline sets. 

skipjack tuna and one yellowfin tuna (taken on the Vinland) were caught on 

trolling jigs mixed with albacore mostly in the area inshore of 130"W. 

In addition, one shortbill spearfish was caught on trolling jigs. 

of fish species caught by the Taasinge is given in Table 6. 

A number of 

A list 

-. 

33 
WEATHER CONDITIONS 

It was anticipated that weather could have an impact upon fishing 

operations. In the long-term average the frequency occurrence of major 

winter storms decreases southward from 35"N. In the recent several 

winters, however, storm fronts have reached more southerly latitudes 

than that given by the long-term average; these conditions occurred 

again this year. Despite occasional storms, fishing was curtailed for 

only one day. On that day winds were 50 knots westerly with gusts to 65 

knots, seas were 6 feet and swell was 20 feet from the west. Of the 

total 30 operating days the winds exceeded 30 knots on eight days and 

sea and swell exceeded 15 feet on 5 days. On 14 days the winds were 

below 15 knots and the swell was less than 6 feet. 

34 
.... 

.... 

.I.. 

.... 

.... 

.... 

.... 

..:. 

.... 

.... 

1.1. 

.... 

.... 

.... 

.... 

.... 

.... 

2 .... 

I .... 

.... 

.... 

.... 

.... 

+ 

TOTAL TAGbED FISH 

--- 56 

BY F/V NORCOASTER 

F/V TAASINGE 

.... F/V VINLAND t ....... 

...... 

....... 

....... 

...... 

NUARY - FE BRUARY 1981 

Figure 9. Number and location of albacore tagged 

and released during the survey. 

c)r 
Table 6. List of Fish Species Caught by F/V Taasinge 

3 

Caught on Longline 

Species 

A1 bacore, Thunnus a1 a1 unga 

Mako shark, Isurus oxyrinchus 

Pacific lancetfish, Alepisaurus borealis 

Pornfret, -- Brama raii 

Stingray, Dasyatis violacea 

Opah, Lampri s regi us 

Caught on Trolling Gear 

A1 bacore, Thunnus a1 a1 unga 

Skipjack, Katsuwonus pelamis 

Shortbi 11 spearfish, Tetrapturus angusti rostris 

No. 

240 

1 

- 

8 

1 

4 

1 

171 

24 

1 

36 
SUMMARY OF FINDINGS 

Long1 i ni ng 

and 25 to 35 pounds. 

A1 bacore were taken by longl ine during exploratory fishing operations 

in a region 700 to 900 miles due west of San Diego. 

As a minimum estimate, overall longline catch rates averaged 4.2 

a1 bacore per 100 hooks . 

A higher catch rate, -8 albacore per 100 hooks, is calculated if the 

early sets are excluded from the average. 

in the latter sets because of knowledge gained from gear experiments 

in the early sets. 

Catch rates are potentially higher if losses of fish due to main line 

twisting and gangion wraparound can be eliminated with gear modification

Fish losses were estimated as 16 percent of the total catch. 

Catches were greatest when gear was set to depths that ranged from 

the bottom of the upper mixed layer, which has about the same temperatur

as the surface, and the upper portion of the thermocline layer where 

temperature decreases rapidly. The thermocline was found at 300 

feet and below. After initial experimentation, the longlines were 

typically set between 300 and 450 feet. 

No differences in catch rates were observed between using squid or 

saury for bait. 

Surface temperatures were nearly 64°F. 

were 58OF to 64°F. 

Ocean thermal fronts were found in the vicinity of the longline sets. 

The highest catch was taken in the vicinity of a front. 

Two size groups of a1 bacore were caught by longl ine : 

Catch rates were greater 

Temperatures at 300 to 450 feet 

12 to 20 pounds 

37 
Trolling 

Catches up to about 40 to 45 albacore per boat per day were taken by 

trolling during the outgoing and inbound tracks of the survey. 

Catches were highest between 123' and 127" W,which was coincident 

with the outer boZlndary of the California Current, and where surface 

temperatures were about 62°F to 64°F. 

Vertical thermal structure shows that the catches were greatest where 

the thermocline was changing from its great depths far offshore to 

shal lower 1 eve1 s nearer shore. 

Three size groups of albacore were caught by trolling: 3 to 4 pounds, 

7 to 9 pounds and 12 to 20 pounds. 

An abrupt decrease in troll catches on the inbound leg of the survey 

was associated with ocean thermal fronts indicated in NOAA-6 satellite 

i ma gery . 

A total of 56 albacore were tagged and released. 

38 
CONCLUSIONS 

Results from the study suggest that the U.S. albacore fishery can 

be expanded to operate during winter months. 

900 miles west of San Diego albacore were caught each day during exploratory 

longline fishing operations. Logistic considerations limited the westward 

extent of this study; however, it is believed that good fishing success 

may also be expected farther to the west, probably to at least the 

longitudes of the Hawaiian Islands. It appears that albacore production 

may average approximately 3000 pounds per set using a longline with 1500 

to 2000 hooks. This production estimate is based on an extrapolation of 

fish catches made using about 300 hooks. 

study indicates that a 3-man crew can handle a 1500 to 2000 hook longline 

and that 50 to 75 foot vessels, typical of the U.S. albacore fleet, can 

operate in the latitudes of the study during winter months. 

Within a large area 700 to 

Experience gained during the 

More exploratory effort is needed in trolling to arrive at conclusions regarding potential yields. However, the catches made from the 

small effort expended during this study were very encouraging. -. 

RECOMMENDATIONS RELATIVE TO LONGLINE FISHING 

The experiences gained in this study have resulted in a number of 

recommendations for longline fishing gear and fishing operations. 

recommendations are, however, based on limited experience and will no doubt 

require rodification in the future. 

These 

39 
0 

4 

0 

4 

0 

0 

0 

Use a powered reel to haul and store the main line. 

Introduce procedures to reduce twisting and tang1 i ng of gear i ncl udi ng 

use of: 

- braided, negatively buoyant main line 

- swivels and stops placed in main line at locations where gangions 

are attached 

relatively short (approximately 6 to 12 feet) gangions made of 

300 pound test monofilament with 2 or 3 swivels. 

- 

Use snaps, preferably with a swivel incorporated, to attach gangions 

to main line. 

Bait hooks at time the gear is hauled and store gangions with baited 

hooks in freezer between sets. 

Use large tuna circle hooks with points offset or No. 32 & 34 Japanese 

1 ongl i ne hooks. 

Fish gear in and near the upper levels of the thermocline. 

Use XBT for determining vertical profile of temperature and depth of 

thermocline. 

Have capabi 1 i ty for receiving weather facsimi 1 e charts. 

Use line puller, such as tuna trolling line puller, to haul buoy lines. 

Use on the order of 1500 to 2000 hooks per set which experience indicates 

a 3-man crew can handle. 

40 
APPENDIX 1 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 21 , 'I981 Set No.: 1 

Position Begin Set: 

Position End Set: 31 '06'N, 131 O33'W 

Time Set Began: 0700 PST Soaking Time: 5-11 hours 

31 '04'N, 131 '29'W 

Type Hooks: #34 I #38 Japanese tuna No. Hooks: 375 Bait: squid & saury - 

Gangion Katerial and Length: 6 ft. 1/811 polypropylene W/ No. Skates: 15 

hook; # 8 Mustad tuna ci rcle 

hook 

3 ft. 175# test stainless wire on #34 I #8 hooks; 5 ft. 

1/16l' stainless wire on #38 hooks 

Direction of Set: East to West in trough 

Weather and Sea Conditions: 40 kt. wind, 10-15 ft. seas 

Order of Pick Up: Last buoy Picke

up first 

Schematic Drawing of Gear: 

Comments: 8 l'skatesl' of sauries, 7 "skates" of squid. 

1-1 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 22, 1981 Set No.: 2 

Position Begin Set: 31 '08'N, 131 "48'W 

Position End Set: 31 "lo", 131 "51 'W 

Time Set Began: 0730 PST Soaking Time: 5-10 hours 

Type Hooks: #34 & #38 Japanese tuna No. Hooks: 253 Bait: squid & saury - Separ

Gangion Material and Lenqth: 6 ft. 1/811 poly ro ylene W/ No. Skates: 12 

hook; #8 Mustad tuna ci rcle 

hook 

1 ft. 175# test stainless wire on #34 G #8 RooRs; 4 ft. 

braided nylon w/l ft. 175# test stainless wire on #34 E 

#8 hooks; 5 ft. 1/16" stainless wire on #38 hooks 

Direction of Set: East to West Order of Pick Up: Last buoy Picked 

Weather and Sea Conditions: 40 kt. wind, 15 ft. seas, heavy rain 

up first 

Schematic Drawing of Gear: 

Comments: 6 "skates" of sauries, 6 "skates" of squid. 

1-2 
F/V Taasinge, Longline Set #Z 

Hook Buoya Buoy Buoy BUOY Buoyb Buoy BUOY Buoy Buoy 

-~ Retrieval’Il - - - 112 #3 - #4 __ 

#5 - #6 - #7 - - #O #9 

1 B B B NB B 

2 B B B B B 

3 B B B B NB 

4 0 B B B B 

5 B B B B B 

6 B B B B B 

7 e B .B 6 NB 

8 B B B B B 

9 B B B B B 

10 B B B B NB 

11 B B B 6 B 

12 B B B B B 

13 B B B B B 

14 B B B B B 

15 B B B B B 

16 B B B B NB 

17 B B B B B 

18 B 8 B B B 

19 B B B B B 

20 B B B B B 

21 B B B B 

22 B B B NB 

23 B B B B 

24 B B B B 

25 B B NB B 

26 B B B 

27 B B 

28 B NB 

29 B B 

30 6 B 

31 NB ALB 

32 B B 

33 6 NB 

34 8 NB 

35 B NB 

36 B B 

37 B NB 

38 6 ALB 

39 NB NB 

40 B B 

41 B NB 

42 B NB 

43 B 

44 8 -* 

Cum Totals: 

9 of Alb. 0 0 0 2 2 

k of Hooks 26 51 93 137 157 

NB 

€3 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

NB 

(ALE 1 

B 

6. 

B 

2 

179 

NB B B 

8 B NB 

NB B FiB 

B B B 

B B B 

B B B 

B B NB 

6 NB B 

B B NB 

NH NB B 

e NB B 

B B B 

B NB B 

B B B 

B NB B 

B NB B 

NB 8 B 

B B B 

B B B 

NB NB B 

B B B 

NB NB B 

B 

B 

NH 

NH 

2 2 2 

201 223 249 

Hooks listed under buoy numbers are found on main lfne between that hoy anA the 

silcceeding one, e.g., hooks under buoy #1 are hooks on main line between buoys #1 & 2. 

a 

bBuoy line broke during soaking period. 

KEY: B = Baited ALEP = Lancetfish 

NB = Bait absent 

NH = Hook lost 

ALB = Albacore on hook 

( ) = Albacore or fish that were lost 

RAY = Stingray 

ABT = Albatross 

POM = Pcmfret 

MSH = Mako Shark 

1-3 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 23, 1981 Set No.: 3 

Position Begin Set: 31°18'N, 133'40'W 

Position End Set: 31 '1 9'N, 133'44'W 

Time Set Began: 0730 PST Soaking Time: 5-1/2 to 8-1/2 hours 

Type Hooks : #34 & #38 Japanese tuna No. Hooks : 261 Bait: squid 

Gangion Material and Length: 6 ft. 1/8" polypropylene w/ No. Skates: 11 

hook; #8 Mustad tuna circle 

hook 

1 ft. 175# test stainless wire on #34 & #8 hooks; 4 ft. 

braided nylon w/l ft. 175# test stainless wire on #34 & #8 

hooks; 5 ft. 1/16" stainless wire on #38 hooks 

Direction of Set: East to West Order of Pick Up: First buoy Picked 

Weather and Sea Conditions: 15 kt. wind,.6 ft. seas 

up first 

Schematic Drawing of Gear: 

4 

Comments : 

1-4 
F/V Taasinge, Longline Set #3 

Hook 

-___ Retrieval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

45 

46 

47 

48 

49 

50 

51 

52 

53 

54 

55 

56 

57 

58 

59 

60 

61 

62 

63 

64 

65 

66 

Cum Totals: 

B of Alb. 

k of Hooks 

Buoya Buoy 

#1 #2 

NB B 

NB B 

NB B 

B B 

B B 

NB B 

B B 

B B 

B B 

NB B 

B NB 

B B 

B B 

NB B 

B B 

B B 

B B 

B B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

NB 

-- 

0 0 

18 61 

Buoy 

#3 

B 

NB 

B 

B 

NB 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

N B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

- 

0 

103 

Buoy 

#4 

NB 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

NB 

B 

B 

NB 

B 

B 

B 

B 

NB 

B 

NB 

B 

B 

NB 

B 

B 

B 

B 

NB 

B 

B 

NB 

B 

NB 

B 

B 

NB 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B, 

B 

B 

B 

B 

B 

N B 

B 

NB 

-- 

0 

179 

Buoy 

15 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

NB 

B 

B 

NB 

N B 

B 

B 

NB 

B 

B 

B 

NB 

B 

B 

NB 

B 

NB 

NB 

NB 

B 

B 

B 

NB 

B 

NB 

B 

B 

B 

B 

B 

NB 

NB 

8 

B 

NB 

0 

229 

Buoy 

#6 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

8 

B 

NH 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

!is 

B 

B 

B 

B 

NB 

NB 

NB 

B 

:B 

B 

B 

O 

285 

'Hooks listed under buoy numbers are found 

on main line between that buoy and the 

succeeding one, e.g., hooks under buoy $1 

are hooks on main line between buoys I1 & 2. 

KEY: B = Baited ALEP = Laficetf

NB = Bait absent 

NH = Hook lost 

ALB = Albacore on hook PGY = Pomfret 

( ) = Albacore or fish PSH = Pako Sha

R4Y = Stingray 

FET = Albatros

that were lost 

1-5 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 24, 1981 Set No.: 4 

Position Begin Set: 31°18'N, 134"20'W 

Position End Set: 31"18'N, 134'27'W 

Time Set Began: 0630 PST Soaking Time : 5-1 0 hours 

Type Hooks: #34 E #38 Japanese tuna No. Hooks: 346 Bait: squid & saury 

hook; #8 Mustad tuna ci rcle 

hook 

Gangion Material and Length: 4 ft. braided nylon w/l ft. No. Skates: 13 

1759 test stainless wire on #34 & #8 hooks; 5 ft. 1/16" 

stainless wire on #38 hooks 

Direction of Set: East to West Order of Pick Up: Last buoy Picked 

up first 

Schezatic Drawing of Gear: 

Comments : 

1-6 
Hook 

Retri era1 -___ 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

45 

46 

47 

48 

49 

50 

51 

52 

Buoya Buoy 

#1 #2 

B B 

B B 

B 8 

B B 

B B 

B B 

B B 

B B 

B B 

B 

B 

B 

B 

8 

ALEP 

B 

B 

B 

B 

B 

8 

8 

8 

B 

8 

B 

8 

B 

B 

8 

8 

B 

8 

B 

-__ 

Cum. Totals: 

# of Alb. 0 0 

# of Hooks 9 43 

Buoy 

#3 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

8 

8 

8 

B 

B 

B 

B 

B 

8 

8 

B 

B 

__- 

0 

82 

Buoy 

#4 

B 

B 

B 

B 

B 

B 

6 

8 

8 

B 

B 

B 

B 

8 

B 

8 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

0 

109 

F/V Taasi nge, Long1 i ne 

Buoy 

#5 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

8 

8 

- 

Buoy Buoy 

#6 C7 

B B 

B B 

B B 

B 8 

B B 

B 8 

B B 

B B 

B B 

B B 

B B 

B B 

8 NB 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B 

__- 

0 0 0 

139 159 180 

Set #4 

Buoy 

na -___ 

8 

B 

B 

B 

8 

8 

B 

B 

B 

B 

8 

8 

B 

B 

B 

B 

B 

8 

B 

8 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

ALEP 

B 

B 

B 

B 

8 

B 

6 

NB 

0 

232 

Buoy 

#9 

B 

NB 

8 

B 

B 

8 

NB 

B 

B 

B 

B 

6 

NH 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

0 

254 

Buoy 

# 10 

B 

B 

B 

B 

8 

B 

POM 

B 

B 

B 

B 

6 

B 

B 

B 

NB 

NH 

B 

B 

0 

273 

Buoy 

# 11 

NB 

B 

8 

B 

B 

B 

6 

B 

B 

B 

8 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

0 

2 94 

Buoy 

P 12 

B 

B 

B 

B 

B 

B 

B 

B 

8 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

8 

0 

321 

aPooks listed under buoy nurbers are found on ;;.sin llne between that buoy and the 

KEY: B = Baited FLEP = Lancetfish 

succeeding one. e.g., nooks under buoy *l are hooks on main line between buoys 81 & 2. 

NO = Bait absent PAY = Stingray 

NH = Hook lost FIST Albatross 

ALB = Albacore on hook FOH Ponfret 

( ) = Albacore or fish that were lost MSH = Mako Shark 

Buoy 

# 13 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

8 

8 

B 

B 

NB 

NH 

B 

B 

B 

8 

B 

- 

0 

346 

1-7 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 25, 1981 Set No.: 5A 

Position Begin Set: 31"08'N, 134'40'W 

Position End Set: Not recorded 

Time Set Began: 0730 PST 

Type Hooks: #34 G #38 Japanese tuna No. Hooks: 368 Bait: squid 8i saury 

Soaking Time: 4-1/2 to 8-1/2 hours 

hook; #8 Mustad tuna circle 

hook 

Gang-ion Material and Length: 6 ft. 250# test monofilament 

on #8 hooks; 4 ft. braided nylon w/l ft. 175# test 

stainless wire on #34 & #8 hooks; 5 ft. 1/16" stainless 

wire on #38 hooks 

No. Skates: 12 

Direction of Set: Not recorded Order of Pick Up: Last buoy picked 

up first 

Weather and Sea Conditions: 5-10 kt- wind, 4 ft. swell 

Schematic Drawing of Gear: 

300 ft. %Oft. 300Ct. 

Comments: 8 of 11 fish landed on monofilament leaders. 

1-8 
Hook 

Retrieval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22. 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

Buoya 

#1 

ALEP 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

Cum. Totals 

# of Alb. 0 

# of Hooks 40 

Buoy 

#2 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

- 

0 

68 

F/V Taasinge, Longline Set #5A 

Buoy 

#3 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

- 

0 

93 

Buoy 

#4 

NH 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

- 

0 

122 

Buoy 

#5 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

B 

B 

B 

ALB 

B 

NB 

B 

NB 

B 

NB 

NB 

NH 

B 

NB 

B 

NB 

B 

B 

B 

B 

B 

B 

- 

2 

153 

Buoy Buoy 

#6 #7 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

8 B 

B B 

B B 

B B 

B B 

B B 

B B 

8 B 

NB B 

B B 

B B 

B B 

NB B 

B B 

B B 

B B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

-- 

2 2 

194 224 

Buoy Buoy 

#8 #9 

NB B 

NB B 

B B 

NB B 

B B 

NB B 

NB B 

B B 

B B 

NH ALB 

B ALB 

NB ALB 

ALB ALB 

B B 

B B 

B B 

NB B 

NB NB 

B B 

B ALB 

B NB 

B B 

B B 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

8 

B 

B 

B 

B 

-- 

3 8 

265 288 

Buoy Buoy Buoy 

# 10 # 11 # 12 

NB B NB 

B B NB 

B B NB 

ALB NB NB 

NB B B 

NB B NB 

B B NB 

B B NB 

B B NB 

NB B NB 

B B NB 

B BB 

B ALB B 

B B NB 

B BB 

B ALE NB 

B NB NB 

8 6 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

NB B 

B B 

B B 

6 

B 

B 

B 

B 

- -- 

9 11 11 

317 334 368 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

KEY: B = Baited ALEP = Lancetfish 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys #1 6 2. 

NB = Bait absent 

NH = Hook lost ABT = A1 ba tross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were lost 

RAY = Stingray 

FISH = Mako Shark 

1-9 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinqe 

Date: January 25, 1981 Set No.: 5B 

Position Begin Set: 

Position End Set: Not recorded 

31 "24' , 134'36" 

Time Set Began: 1600 PST Soaking Time: 2 hours 

Type Hooks: #34 E #38 Japanese tuna No. Hooks: 105 Bait: squid & saury 

Gangion Material and Length: 6 ft. 250# test monofilament No. Skates: 3 

hook; #8 Mustad tuna c i rc le 

hook 

on #8 hooks; 4 ft. braided nylon w/l ft. 175# test 

stainless wire on #34 & #8 hooks; 5 ft. 1/16" stainless 

wi re on #38 hooks 

Direction of Set: Not recorded Order of Pick Up: Last buoy Picked 

Weather and Sea Conditions: 5 kt. wind, 4 ft. swell 

up first 

Schematic Drawing of Gear: 

Comments : 

1-10 
F/V Taasinge, Longline Set #5B 

Hook 

Retrieval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

Buoya 

#1 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

6 

B 

NB 

B 

B 

B 

B 

B 

B 

6 

B 

8 

B 

B 

B 

B 

8 

B 

B 

B 

8 

Cum Totals: 

+ of Alb. 0 

.# of Hooks 34 

Buoy 

w2 

B 

B 

B 

NB 

8 

NB 

B 

B 

B 

B 

NB 

B 

B 

8 

B 

NB 

NB 

B 

B 

B 

B 

B 

8 

8 

B 

8 

B 

B 

B 

B 

8 

B 

B 

B 

8 

B 

B 

B 

B 

B 

0 

74 

Buoy 

#3 

B 

B 

B 

B 

8 

B 

B 

B 

B 

8 

B 

B 

ALB 

B 

NB 

8 

B 

B 

B 

B 

B 

B 

B 

B 

8 

8 

8 

6 

8 

8 

B 

- 

1 

105 

Hooks listed under buoy numbers are found on main lin

between that buoy and the succeeding one, e.g., hooks 

under buoy 111 are hooks on main line between buoys tl 

a 

KEY: B = Baited ALEP = .Lancetfis

NB = Bait absent 

NH = Hook lost ABT - Albatross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that MSH = Mako Shark 

RAY = Stingray 

were lost 

1-11 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 26, 1981 Set No.: 6 

Time Set Began: 0730 PST Soaking Time: 5-9 hours 

Type Hooks: #8 Mustad tuna circle No. Hooks: 296 Bait: squid & saury hook 

Gangion Material and Length: 6-8 ft. 250-300# test No. Skates: 10 

monofilament; 4 ft. braided nylon w/l ft. 175# test 

stainless wire 

Direction of Set: East to West Order of Pick Up: Last buoy 

picked up first 

Weather and Sea Conditions: 25 kt. wind, 5 ft. seas 

Schematic Drawing of Gear: 

c 

450 f+. 

Comments: 4 fish caught on deep line. 

1-12 
F/V Taasinqe, Longline Set #6 

Hook Buoya Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy 

Retrieval # 1 # 2 #3 #4 #s # 6 I 7 I8 # 9 

1 B B NB B NB NB B NB ’ B 

2 NB B B B NB NB B B B 

3 NB B B B NB NB B B NB 

4 NB B B B NB NB NB B NB 

5 B B B B NB B B B B 

6 NB B B B B NB NB B B 

7 ALE B B B B B B B NB 

B NB B B B B 8 B B NB 

9 NB B B B B (FISH) B B B 

10 NB B B B B (FISH) B B B 

11 B B B B. B (FISH) B B ALB 

12 B B B B B B B B NB 

13 8 B 8 8 B B B B B 

14 B B B B 8 B B B B 

15 ALB B B B NB B 8 B B 

16 ALB B B B B B B B B 

17 NB B B NB B B B B NB 

18 NB B B B B B B B B 

19 NB B B B B B B B B 

20 ALB B B B B B B 8 B 

21 B 8 B B NB 8 B B 

22 B B B B 8 B B B 

23 B B NB B B B NB B 

24 NB B B B B B B B 

25 B B B 8 B B B 

26 B B B B B B B 

27 B B NB B B 8 

28 B B B B B 8 

29 B B ALB B B NB 

30 B B B B B 

31 8 B B B B 

32 B B B NB 

33 B B B B 

34 NB B NB 

35 B B 

36 B 8 

37 B NB 

38 B B 

39 B 8 

40 B NB 

41 B 

42 B 

43 NB 

44 NB 

45 B 

46 B 

47 8 

48 B 

49 B 

50 B 

51 B 

52 B 

53 NB 

54 B 

55 B 

56 B 

57 RAY 

58 B 

59 B 

Cum Totals: 

I of Alb. 4 4 4 5 5 5 5 5 6 

# of Hooks 33 64 90 124 153 173 197 256 296 

aHooks listed under buoy numbers are found on main line between that buoy and the 

succeeding one. e.g., hooks under buoy !l are hooks on main line between buoys *I I2 

KEY: B = Baited ALEP = Lancetfish 

NE = Bait absent RAY = Stingray 

NH = Hook lost 

ALE = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were lost 

ABT = A1 batross 

MStl = Mako Shark 

1-13 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 28, 1981 Set No. : 7 

Position Begin Set: 

Position End Set: Not recorded 

31 "40'N, 134'29'W 

Time Set Began: 0830 PST Soaking Time: 4-1/2 to 9-1/2 hours 

Type Hooks: #8 Mustad tuna circle No. Hooks: 341 Bait: squid & saury 

hook 

Gangion Material and Length: 6-8 ft. 250-300# test No. Skates: 14 

monofilament 

Order of Pick Up: Last buoy 

picked up first 

Weather and Sea Conditions: 15-20 kt wind, 6-10 ft. seas 

Schematic Drawing of Gear: 

t 

I 

A4 

I 

300 Ft 450 ft. 

Comments: Buoy line lengths and configuration used for the remainder 

of the cruise. 

y 50t"t. 

1-14 
F/V Taasinqe, Longline Set #7 

Hook 

Retrieval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

Cum Totals: 

# of Alb. 

# of Hooks 

Buoya Buoy 

11 12 

B B 

B B 

B B 

NB . B 

B B 

ALB B 

B B 

B B 

B B 

B B 

B B 

ALB B 

B B 

B B 

NB B 

B B 

B B 

B B 

B B 

B B 

B B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

-- 

2 2 

21 57 

Buoy 

13 

B 

B 

B 

NB 

B 

NB 

B 

B 

B 

B 

NB 

B 

B 

NB 

B 

B 

NB 

NB 

B 

NB 

B 

B 

B 

B 

B 

NB 

B 

NB 

NB 

NB 

NB 

NB 

B 

NB 

NH 

- 

2 

92 

Buoy 

- 14 

(FISH) 

B 

N8 

B 

B 

B 

NB 

B. 

NB 

N8 

NE - 

NB 

ALB 

B 

NB 

B 

B 

B 

NB 

B 

8 

B 

B 

B 

ALB 

B 

B 

B 

NB 

B 

Buoy 

#5 

B 

ALB 

8 

NB 

ALB 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

NB 

- 

Buoy 

16 

B 

B 

ALB 

B 

B 

B 

(ALE) 

ALB 

8 

NB 

8 

NB 

B 

NB 

B 

NB 

NB 

- 

Buoy Buoy Buoy 

--- w7 #a #9 

NB 

B 

NE 

NB 

B 

B 

NB 

NB 

NB 

B 

NB 

B 

NB 

B 

NB 

NB 

NB 

B 

B 

NB 

ALB 

B 

ALB 

NB 

ALE 

NB 

NB 

ALB 

NB 

ALB 

NB 

B 

ALB 

B 

B 

NB 

NB 

B 

B 

B 

NB 

B 

B 

B 

B 

ALB 

NB 

B 

B 

NB 

B 

B 

B 

NB 

N8 

B 

B 

B 

B 

B 

NB 

B 

NB 

B 

B 

NB 

B 

B 

B 

ALB 

NB 

NB 

,Buoy Buoy 

-- # 10 # 11 

B NB 

ALB (FISH) 

B NE 

ALB NB 

NB N8 

(FISH) NB 

B NB 

B NB 

B NB 

NE NE 

NB (FISH) 

NB NB 

B NB 

ALB NB 

ALB NB 

NE (FISH) 

NB NB 

Buoy Buoy 

- # 12 fi 

NB ABT 

B N8 

B NB . ALB (FISH) 

B NB 

NB (FISH) 

B NB 

NH NB 

ALB B 

NB NB 

B NB 

.B NB 

NB B 

B NB 

NB B 

ALB NB 

NB NB 

B NB 

NB 

B 

B 

ALE (FISH) 

Buo

# 1

B 

NB 

NB 

NB 

B 

B 

B 

NB 

B 

NB 

B 

B 

B

B 

NB 

NB 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

E 

AL

NB 

NB 

- 

A

2

122 143 160 182 209 232 249 266 285 307 34

4 6 89 15 16 20 20 24 24 

Hooks listed under buoy numbers are found on main line between that buoy and the 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys 11 & 2. 

a 

bShark bitten. 

KEY: B = Baited ALEP = Lancetfish 

NB = Bait absent 

NH = Hook lost ABT = Albatross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were lost 

RAY = Stingray 

MSH = Mako Shark 

1-15 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 29, 1981 Set No.: 8 

Time Set Began: 0800 PST Soaking Time: 5-9 hours 

Type Hooks : #8 Musrad tuna ci rcle No. Hooks: 343 Bait: squid & saury 

hook 

Gangion Material and Length: 6 ft. 250-300# test No. Skates: 15 

monofilament 

Direction of Set: Southeast to Northwest Order of Pick Up: bst buoy 

Weather and Sea Conditions: 5 kt. wind, 6 ft. seas 

picked up firs

Schematic Drawing of Gear: 

See Set #7 

Comments : 
F/V Taasinge, Longline Set #8 

Hook Buoya Buoyb Buoy BUOY BUOY Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy 

Ret #1 #2. 43 #4 15 16 #7 #8 #9 110 #I1 #12 #13 114 115 r i eva 1 - - -- - - - - - __ __ - __ - -- - 

1 

2 

3 

4 

5 

6 

7 

E 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

B 

B 

B 

NB 

B 

8 

B 

B 

B 

B 

B 

E 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

E 

ALB 

B 

NB 

B 

B 

B 

B 

ALB 

B 

ALB 

B 

B 

B 

NB 

B 

B 

B 

NB 

B 

E 

NB 

ALB 

B 

NB 

NB 

B 

B 

ALB 

B 

B 

E 

B 

B 

NB 

B 

B 

B 

NB 

B 

ALB 

B 

B 

NB 

NB 

NB 

NB 

NE 

B 

ALB 

NB 

ALB 

ALB 

NB 

NB 

NB 

(FISH) 

NB 

ALB 

NE 

B 

B 

B 

B 

B 

B 

B 

8 

RAY 

NB 

B 

B 

B 

NB 

NB 

NB 

B 

B 

B 

B 

B 

NB 

ALB 

NB 

B 

NB 

NB 

ALB 

ALB 

B 

B 

ALB 

B 

NB 

NB 

NB 

NB 

N6 

B 

B 

B 

B 

B 

ALB 

B 

NE 

(FISH) 

B 

B 

B 

B 

B 

B 

NB 

ALB 

B 

NB 

B 

B 

8 

B 

NB 

B 

B 

E 

NB 

NE 

NB 

ALB 

B 

B 

NE 

ALB 

NE 

NB 

NB 

ALB 

NB 

NB 

NB 

ALB NB 

NB B 

ALB NB 

NB NB 

B B 

NB B 

ALB NB 

B ALB 

NE NB 

NB ALB 

B NB 

ALB E 

B NB 

NB E 

NB B 

B NB 

B B 

(FISH) B 

B 

8 

B 

B 

B 

(FISH) 

NB ALB NB 8 NE 

ALB NB NB NB . NB 

NB NB NB NB NB 

B NB NB NB NB 

NB NB NB NB NB 

ALB NB B NB tiB 

NB B NB NB NB 

NE NB NB B NB 

NE NE NB NB NB 

NB NB NB B NB 

ALB B ALB NB NB 

NB NB NB NB NB 

NB NB NB NB NB 

NE ALB NB B NB 

NB ABT NB B NB 

NB NB 8 B NB 

NB NB NB ALB 

NB B NB NE 

NB NB NB B 

NE B NE E 

NB NB NB B 

NB NB NB 

NB NB NB 

NB B NB 

ALB NB 

Cum Totals: 

# of Alb. 0 5 7 10 14 16 19 23 25 29 31 32 32 33 

I of Hooks 27 57 78 103 128 149 168 186 210 235 256 272 296 321 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

bBuoy line tangled; not fishing at depth of buoy line. 

KEY: B = Baited ALEP = Lancetfish 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys #1 6 2. 

NB = Bait absent 

NH = Hook lost 

ALB = Albacore on hook 

( ) = Albacore or fish that were lost 

RAY = Stingray 

MT = Albatross 

POM = Pomfret 

MSH = Rako Shark 

NB 

NB 

NB 

E 

ALB 

B 

B 

B 

B 

NB 

NB 

. NB 

B 

B 

ALB 

NB 

NB 

B 

NB 

E 

NB 

NB 

35 

343. 

1-17 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 30, 1981 Set No.: 9 

Position Begin Set: 31°26'N, 134'13'W 

Position End Set: Not recorded 

Time Set Began: 0730 PST Soaking Time: 5-1/2 to 10-1/2 hours 

Type Hooks: #8 Mustad tuna circle No. Hooks : 386 Bait: squid & saury 

hook 

15 Gangion Material and Length: 6 ft. 250-300# test No. Skates: 

monofilament 

Direction of Set: Not recorded 

Weather and Sea Conditions: 5 kt. wind, 3 ft. swell 

Order of Pick Up: Last buoy 

picked up first 

Schematic Drawing of Gear: 

See Set #7 

Comments : 

1-18 
F/V Taasinge, Longline Set #9 

Hook Buoya Buoy Buoy 

Retrieval fi 13 

1 B B ALEP 

2 B B B 

3 B B B 

4 B B B 

5 B B B 

6 B B B 

7 B (FISH) B 

8 B B B 

9 B NB B 

10 B B B 

11 B B B 

12 B B B 

13 B B B 

14 B ALB B 

15 8 NB B 

16 B B B 

-1 7 B B 

18 B B 

19 B B 

20 B B 

21 NB ALB 

22 B B 

23 B B 

24 NB B 

25 B NB 

26 B NB 

27 B B 

28 NB 

29 B 

30 ABT 

31 

32 

33 

34 

35 

Cum Totals: 

# of Alb. 0 1 2 

# of Hooks 16 43 73 

Buoy Buoy Buoy 

--- #4 15 #6 

B B B 

B B NB 

ALB B (FISH) 

B B B 

B B NB 

B B B 

B B 8 

B B B 

B NB B 

B NB B 

B. B B 

ALB B B 

B NB B 

B B NB 

B 8 B 

B B B 

ALB B NB 

NB B AL B 

B B B 

E B ALB 

8 B B 

B B B 

B B ALB 

B B B 

B NB B 

B (FISH) B 

B B 

5 5 8 

100 126 153 

Buoy 

#7 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

NB 

ALB 

B 

B 

- 

9 

176 

Buoy Buoy 

-- #8 #9 

B 

ALB 

B 

B 

8 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

10 

201 

B 

B 

B 

B. 

B 

B 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B' 

B 

B 

B 

B 

B 

NB 

NB 

B 

NB 

10 

236 

Buoy 

# 10 

B 

B 

NB 

B 

B 

ALB 

B 

B 

NB 

NB 

N6 

B 

B 

B 

B 

8 

B 

B 

B 

B 

B 

NB 

B 

NB 

B 

B 

- 

11 

262 

Buoy 

# 11 

ALB 

B 

B 

B 

ALB 

B 

B 

8 

B 

B 

8 

B 

B 

B 

B 

B 

B 

NB 

NB 

NB 

B 

B 

- 

13 

284 

Buoy 

# 12 

B 

B 

B 

B 

ALB 

8 

B 

B 

B 

B 

NB 

B 

8 

ALB 

B 

NB 

ALB 

B 

B 

NB 

B 

B 

16 

306 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

succeeding one, e.g., hooks under buoy fl are hooks on main line between buoys #1 6 2. 

KEY: B = Baited ALEP = Lancetfish 

NB = Bait absent 

NH = Hook lost ABT = Albatross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were lost 

RAY = Stingray 

MSH = Mako Shark 

Buoy Buoy 

-- # 13 R 14 

ALE B 

B B 

B B 

NB B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

B B 

ALB B 

8 B 

B B 

B B 

B NB 

8 B 

B NB 

B B 

B B 

B NB 

B B 

B B 

B B 

B B 

B 

B 

18 18 

334 360 

1-19 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: January 31 1981 Set No.: 10 

Position Begin Set: 3l015'NY 134'46'W 

Position End Set: Not recorded 

Time Set Began: 0730 PST Soaking Time: 6-1/2 to 9 hours 

Type Hooks: #8 Mustad tuna ci rcle No. Hooks: 391 Bait: squid & saury 

hook 

Gangion Material and Length: 6 ft. 250-300# test No. Skates: 14 

monofilament 

Order of Pick Up: First buoy 

picked up first 

Weather and Sea Conditions: 5 kt. wind, 4-6 ft. seas 

Schematic Drawing of Gear: 

See Set #7 

Comments : 

1-20 
Hook 

Ret r i eval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

Cum Totals: 

# of Alb. 

I of Hooks 

Buof 

#1 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

NB 

B 

B 

B 

NB 

NB 

NB 

B 

NB 

B 

NB 

NB 

NB 

- 

0 

29 

Buoy 

12 

NB 

NB 

NB 

B 

NB 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

- 

0 

55 

BWyb 

#3 

B 

B 

B 

B 

NB 

B 

B 

B 

NB 

B 

NB 

B 

ALB 

B 

B 

B 

NB 

B 

B 

NB 

B 

B 

NB 

NB 

B 

NB 

- 

1 

81 

F/V Taasinqe, Longline Set #10 

Buoy 

#4 

8 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

NB 

8 

B 

B 

B 

B 

B 

B 

B 

B 

- 

1 

102 

Buoy 

85 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

NB 

B 

NB 

B 

- 

1 

127 

Buoy 

116 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

NB 

ALB 

B 

NB 

ALB 

ALB 

B 

B 

ALB 

B 

B 

B 

B 

B 

B 

B 

5 

158 

Buoy 

17 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

ALB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

- 

6 

191 

Buoy 

#8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

B 

NB 

B 

B 

NB 

7 

21 8 

Buoy 

#9 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

8 

B 

B 

B 

RAY 

B 

B 

B 

B 

B 

B 

B 

- 

7 

242 

Buoy 

# 10 

ALB 

B 

B 

B 

B 

ALB 

ALB 

NB 

NB 

ALB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

ALB 

B 

B 

B 

B 

NB 

B 

ALB 

ALB 

ALB 

ALB 

ALB 

17 

274 

Buoy 

# 11 

NB 

ALB 

B 

B 

B 

B 

NB 

NB 

ALB 

ALB 

NB 

B 

NE 

NB 

NB 

NB 

B 

B 

B 

ALB 

B 

NB 

B 

ALB 

ALB 

B 

B 

B 

B 

-- 

23 

3 03 

Buoy Buoy 

-- # 12 # 13 

(FISH) B 

B B 

B B 

B B 

B B 

B B 

B B 

ALB ALB 

B B 

B B 

B NB 

B B 

B B 

B B 

B (FISH) 

NB B 

NB B 

NB B 

NB B 

NB B 

ALB B 

NB ALB 

NB NB 

NB ALB 

NB B 

NB B 

ALB B 

NB 

ALB 

B 

B 

B 

NB 

27 30 

336 363 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

bBuoy line tangled; not fishing at depth of buoy line. 

KEY: B = Baited ALEP = Lancetfish 

succeeding one, e.g., hooks under buoy 81 are hooks on main line between buoys I1 L 2. 

NB = Bait absent 

NH = Hook lost ABT = Albatross 

ALB = Albacore on hook POM Pomfret 

( ) = Albacore or fish that were lost MSH Mako Shark 

RAY = Stingray 

B

Y 

- 

? -21 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: February 1 1981 Set No.: 11 

Position Begin Set: 3l014'N, 134O43'W 

Position End Set: 3l0lO'N, 134'40'W 

Time Set Began: 0800 PST Soaking Time: 5-1/2 to 8-1/2 hours 

Type Hooks : ##8 Mustad tuna c i rcle No. Hooks: 483 Bait: squid & saury 

hook 

Gangion Material and Length: 6 ft. 250-300# test No. Skates: 16 

monofilament 

Direction of Set: Northwest to Southeast Order of Pick Up: First: buoy 

Weather and Sea Conditions: 5 kt. wind, 3 ft. seas 

picked up first 

Schematic Ovawing of Gear: 

See Set #7 

Comments : 

1-22 
F/V Taasinge, Longline Set #11 

Hook Buoya Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoyb Buoy Buoy BUOY BUOY 

Retrieval # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 10 # 11 # 12 # 13 I14 .# - 15 

1 

2 

3 

4 

5 

.6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

B 

B 

B 

B 

B 

B 

B 

B 

8 

B 

8 

B 

B 

B 

B 

NB 

B 

B 

B 

ALEP 

B 

B 

B B B NB B B B NB 

B B B NB B B B B 

B B B B B B B B 

B B B B 'B B B B 

B 8 B B B B B NB 

B B 8 B B B B NB 

B ALB B B 'B B B B 

B B B B B B B B 

B B B B B B B B 

B B B B B (FISH) B B 

B B B B B B B B 

B B B B B B NB B 

B B B ALB B B ALB B 

B B B (ALB) B B B B 

B B B NB B B B B 

B B B B B 8 B B 

B NB B B B B B B 

B ALB B B B B B B. 

NB B B B B B B B 

B NB B B B B B B 

B NB B B B B B ALB 

B B B B B B B B 

B B B B B B B B 

B 8 B B B B B B 

B B ALB B ALB B B B 

B B B B B B B B 

B B B B ALE B B 8 

B B B NB B B B B 

B B B ALB B B B B 

B B NB 8 B B B 

B 8 B B B 

B B B B B 

B B B B 

B 8 B B 

B B B B 

8 B B 

B B NB 

B B 

B 

B 

NB 

B 

B 

B 

B 

B 

NB 

NB 

ALB 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B B B 

NB B B 

B B B 

B B B 

B B B 

B NB B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B B 

B B NB 

B B B 

B B B 

B B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

B 

B 

B 

NB 

B 

B 

NB 

NB 

NB 

B 

B 

B 

B 

B 

B 

ALB 

NB 

B 

8 

B 

NB 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

ALB 

8 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

0 

B 

6 

B 

B 

B 

B 

B 

Cum Totals: 

iY of Alb. 0 0 2 3 5 7 7 8 9 10 10 10 10 12 14 

# of Hooks 22 60 90 122 157 187 216 257 294 319 345 372 403 427 461 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys lil & 2. 

bBuoy line tangled; not fishing at depth of buoy line. 

KEY: B = Baited ALEP = Lancetfish 

NB = Bait absent 

NH = Hook lost 

ALB = Albacore on hook 

( ) = Albacore or fish that were lost 

RAY = Stingray 

ABT = Albatross 

POM = Pomfret 

MSH = Mako Shark 

1-23 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: February 2, 1981 Set No.: 12 

Time Set Began: 0730 PST 

Type Hooks: #8 Mustad tuna circle No. Hooks : 474 Bait: squid & saury 

Gangion Material and Lenath: 6 ft. 250-300# test No. Skates: 15 

Soaking Time: 5-1/2 to 10 hours 

hook 

monofilament 

Direction of Set: Southwest to Northeast Order of Pick Up: Last buoy 

Weather and Sea Conditions: 

picked up first 

Rain, calm seas, light breeze 

Schematic Drawing of Gear: 

See Set'#7 

Comments : 

1-24 
Hook 

Ret ri eval 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

1 7. 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

Buoya Buoy 

#1 #2 

NB 8 

8 NB 

B B 

B NB 

B B 

B B 

NB B 

B B 

B ALB 

B B 

B B 

(ALB) B 

B B 

B ALE 

B B 

B B 

B B 

B B 

B B 

8 NB 

NB B 

B ALB 

B B 

ALB NB 

B B 

B B 

ALB 

B 

NB 

B 

B 

ALB 

B 

NB 

-- 

Cum Totals: 

1 of Alb. 1 6 

# of Hooks 26 60 

Buoy 

- #3 

ALB 

NB 

B 

B 

ALB 

B 

B 

B 

8 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

ALB 

NB 

NB 

ALB 

B 

NB 

NB 

NB 

ALE 

NB 

B 

11 

90 

F/V Taasinge, Longline Set #12 

Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy Buoy 

____---------- #4 U5 16 P7 #8 #9 #lo All1 112 #13 114 115 

B ALB B B B B B B B B NE (FISH) 

B B B 8 8 B B B B B B NB 

B B (FISH) B B B B B B B B NB 

NB B (FISH) B B B B B B B NB B 

6 NB 

ALB B 

ALB NB 

ALB NB 

B NB 

NB NB 

ALB ALB 

B ALB 

B B 

B (FISH) 

B NB 

B ALB 

B NB 

B NB 

B NB 

B NB 

B NB 

NB NB 

B NB 

B ALB 

B NB 

NB 

ALB 

15 21 

115 142 

NB B B NB B B NB 

NB ALB ALB B NB B B 

B NB B B B B B 

B B NB B B B (FISH) 

B ALB B B ALB B B 

NB B ALB B (FISH) NB B 

B B (FISH) B NB B NB 

ALB B B ALB NB B B 

NB B B NB ABT B B 

ALB B B NB NB ALB NB 

NB B (FISH) B B (FISH) B 

B B (FISH) B NB B ALB 

ALB B NB B B ALB B 

NB B B B NB B 8 

NB ALB ALB B B (FISH) B 

B B B (FISH) NB NB B 

ALEP B B B B B B 

NB B B B NB NB ALB 

B (FISH) B 8 ALB (ALEP) NB 

B B B B B B 

B ALB B ALB B 

B B B (FISH) NB 

B E B B NB 

ALE B B B NB 

B B NB NB NB 

B B ALB B NB 

B B B ALB NB 

B B B ALB B 

ALB B B 

B B B 

B B B 

NB B B 

ALB B B 

ALB 

(FISH) 

25 32 36 37 39 44 46 

174 213 250 274 297 329 366 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

NB 

B 

B 

B 

NB 

ALE 

B 

NB 

B 

B 

ALB 

B 

B 

B 

B 

ALB 

B 

50 

399 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

KEY: B = Baited ALEP = Lancetfish 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys #I 6 2. 

NB = Bait absent 

NH = Hook lost ABT = Albatross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were iost 

RAY = Stingray 

MSH = Rako Shark 

ALB 

ALB 

B 

B 

B 

NB 

B 

B 

ALB 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

ALB 

B 

B 

B 

B 

B 

ALB 

55 

443 

B 

B 

NB 

B 

B 

NB 

NB 

NB 

B 

NB 

B 

B 

ALB 

B 

ALB 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

ALB 

NB 

B 

58 

474 

1-25 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: February 3, 1981 Set No.: 13 

Position Begin Set: 

Position End Set: Not recorded 

31 "05'N, 134'53'W 

Time Set Began: 0800 PST Soaking Time: 5-1/2 to 9 hours 

Type Hooks : #8 Mustad tuna ci rcle No. Hooks: 487 Bait: squid & saury hook 

Gangion Material and Length: 6 ft. 250-300# test No. Skates: 15 

monof i lament 

Schematic Drawing of Gear : 

See Set.#7 

Comments : 

1-26 
F/V Taasinge, Longline Set #13 

Hook . Buo~' BUOY Buoy Buoy BUOY BUOY BUOY Buoy BUOY BUOY BUOY BUOY BUOY BUOY BU

Retrieval - #I - #2 - #3 __ 

14 - - W5 #6 - #7 - #8 - #9 - 110 - Ill - #12 - #13 #14 1

--

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

.18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

B B B B NB B B B B 

NB B B B B NB B B B 

ALB B NB B ALB B B B B 

B B B B B ALB B B ALB 

B B B B B B B B NB 

B B B B B B B B B 

NB B B B B B B B B 

B B B NB B B B ALB B 

B B NB B B B B NB B 

B B ALB B B ALEP B NB B 

B B B B ALB B B NB B 

B B B B B B B B B 

B ALB B B B B B B B 

B B NB B NB B B (FISH) B 

B B B B ALB B B NB B 

NB B B NB NB B NB B B 

8 B B B B B B ALB B 

ALB B NB ALE B B B NB B 

B B B B B B B B B 

NB B B B B B B B B 

B B B B B B B B B 

B B B B B B B NB B 

B NB B B B B (ALB) NE B 

B B B B B B B NB B 

B B B B B B B ALB B 

B B B B B B B B B 

B B B B B B B ALB B 

B B B ALB B B B B 

B B B B ALB B 

B B B B NB B 

B B NB ALB B B 

B 8 B ALB B B 

B B B B B B 

B B B B B B 

B B B B ALB B 

B B B B B 

B B B B 

NB B B B 

NB NB B B 

B B 

B ALB 

B 

B 

B 

ALB 

B 

B 

B 

B 

ALEP 

B 

NB 

NB 

NB 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

NB 

B 

B 

B 

B 

NB 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

(FISH) 

B 

B 

B 

B 

B 

B 

NB 

NB 

B 

NB 

B 

B 

B 

B 

B 

NB 

NB 

B 

B 

B 

B 

B 

B 

ALB 

B 

B 

B 

B 

B 

B 

ALB 

B 

NB 

B 

B 

B 

B 

B 

ALB B A

NB B A

NB B B 

B B B 

B NB B 

B B B 

B B B 

B B B 

B B B 

NB ALB B 

B B B 

B NB B 

B 

B NB ALB B A

B 

B B B 

B B A

B B (FI

B B N

B ALB 

B B 

B B 

ALB B 

B NB 

B 

B 

B 

NB 

B 

NB 

B 

ALB N

Cum Totals: 

I of Alb. 2 3 4 6 12 13 13 19 20 21 21 23 25 29 

# of Hooks 35 78 114 142 183 210 238 277 316 346 375 . 413 444 468 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

succeeding one, e.g., hooks under buoy #1 are hooks on main line between buoys #1 & 2. 

KEY: B = Baited ALEP = Lancetfish 

RAY = Stingray 

ABT = Albatross 

POM = Pomfret 

MSH = Vako Shark 

NB = Bait absent 

NH = Hook lost 

ALB = A1 bacore on hook 

( ) = Albacore or fish that were lost 

1-27 
Summary of Longline Fishing Methods and Catch Information Made By F/V Taasinge 

Date: February 5, 1981 Set No.: 14 

Position Begin Set: 32"49'N, 132'28'W 

Position End Set: Not recorded 

Time Set Began: 0830 PST Soaking Time: 4-1/2 to 7-1/2 hours 

Type Hooks: #8 Mustad tuna ci rcle No. Hooks: 350 Bait: squid & saury 

hook 

Gangion Material and Length: 6 ft. 250-300# test No. Skates: 11 

monof i 1 ament 

Direction of Set: West to East Order of Pick Up: first buoy 

Weather and Sea Conditions: 20 kt- wind, 6 ft. Seas 

picked up first 

Schematic Drawing of Gear: 

See Set #7 

Comments: Erben Bank, east side. 

1-28 
F/V Taasinqe, Longline Set #14 

Hook Buoya BUOY BUOY BUOY BUOY BUOY BUOY BUOY BUOY BUOY BUOY 

Retrieval - ff1 - #2 - 13 - - 14 115 #6 17 #8 X9 110 #11 ~ - - - - - 

1 B B 

2 NB B 

3 B B 

4 B B 

5 B NB 

6 B B 

7 B B 

8 B B 

9 NB B 

10 B NB 

11 B B 

12 B B 

13 NB B 

14 NB B 

15 B B 

16 B B 

17 B B 

ia B B 

19 B B 

20 . B B 

21 B B 

22 B B 

23 B B 

24 B B 

25 B B 

26 B B 

21 B B 

28 B B 

29 B B 

30 B B 

31 B B 

32 B 

33 B 

34 

35 

36 

37 

38 

Cum Totals: 

# of Alb. 0 0 

X of Hooks 33 64 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

NB 

NB 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

B 

OPAH 

B 

B 

B 

B 

B 

0 

98 

B B B B B B B B 

B B B B B B B B 

B B (FISH) B B B B B 

B B B B ACB B B B 

B RAY B B B B B B 

NB B B B B B B NB 

'B B B B B B B B 

B B B B NB B B B 

B B B B NB B B NB 

B B B B B B B B 

B B B B B B B B 

B B B B B B B NB 

B B B B B B B B 

B B B B B B B B 

B B B B B B B B 

B B B B B B B B 

B B B B B B B B 

B B B B. B NB B B 

B B B B B B B B 

B B B B B B B B 

B B B ALB B B B B 

B B B B B B NB B 

B B B B B B NB B 

NB B B NB B B NB B 

B B B B B B MSH B 

B B B B B B NB B 

B B B B B B B 

B B B B B B B 

B B B B B 

B B B B 

B B B 

B B B 

NB B 6 

B B B 

B B B 

B B 

B B 

B B 

0 0 0 1 2 2 2 2 

127 157 195 233 261 287 315 350 

'Hooks listed under buoy numbers are found on main line between that buoy and the 

KEY: B = Baited ALEP = Lancetfish 

succeeding one, e.g.. hooks under buoy tl are hooks on main line between buoys I1 & 2. 

NB = Bait absent 

NH = Hook lost ABT = Albatross 

ALB = Albacore on hook POM = Pomfret 

( ) = Albacore or fish that were lost 

RAY = Stingray 

MSH = Mako Shark 

1-29 
Summary of Long1 i ne Fishing Methods and Catch Jnforn1al:ion Made By IT/V Norcoaster 

Eatt?: January 25, 1981 Set No.: 3A 

Fosition ErAd Set: Not recorded 

-. 

iiilire Set: Began: -0730 PST Soaking Tirne: - 5-8 hours 

Tyce Hools: #34 Japanese tuna hook; No. Hooks: 275 Bait: squid saury 

Gzngio!i l',:tcricl ard Length: 18 ft. 300# test seine No. Skates: 10-1/2 

##8 Mustad tuna circle hook 

twine w/3-5 ft. 175# test stainless wire 

Dirtcttcn r;f Set: West to East Order 0; P'ick llp: Last buoy 

picked up first 

Cg<lIl!eilt;: 1 tub of gear is 900 ft. or 4 "skate". Three fish caught. 

1-30 
Sunmary of Longline rishing Methods and Catch Information Made By F/V Norcoaster- 

⁢: January 25, 1981 Set No.: 38 

Typo Hooks: #34 Japanese tuna hook; No. Hooks: 75 Bait: squid & saury #8 Mustad tuna circle hook 

Garigion tl3terial and Length: 18 ft. 3OO# test seine No. Skates: 3 

twine w/3-5 ft. 175# test stainless wire 

Dit-cciior, of SPt:West to East Order of Pick Up: Last buoy 

picked up first 

Ve:itbei* 2nd Sea Conditions: 5 kt. wind, 2 ft. seas 

300 F4 300 ct So0 R 

Cormcnts: No fish caught. 

1-31 
Sunirnary of Long1 ine Fishing Methods and Catch Inforination Made By F/V Norcoaster 

Dirte: January 26, 1981 Set No.: 4A 

Posit.ion Begin Set: 3lo07'N, 134'54Iw 

Position End Set: Not recorded 

Time Set Ecgan: 0730 PST Soaking Tim: 5 to 6 -1/2 hours 

Type tboks: #34 Japanese tuna hook; No. Hooks: 212 Bait: squid & saury 

Ganyion Raterial and Length: 6 ft. 300# test seine NO. Skates: 8-1/2 

#8 Mustad tuna c i rcle hook 

twine w/3 ft. 175# test stainless wire 

Dircclion of Set: West to East Order of Pick Up: Last buoy picked 

up first 

\.!eatlie)- and Ses Conditions : 15-20 kt. wind, 6-8 ft. seas 

Schemtic Drav:iny of Gear: 

300 a. 

3600 Ct. 

mm 

L 

300 s?Ic I 

Conitiicnts: Three fish caught. 

1-32 
Summary of Longline Fishing Methods and Catch Information Made By F/V Norcoaster 

Date: January 26, 1981 Set No.: 46 

Position Begin Set: 3l007’N, 134O541W 

Vosi tion End Set : Not recorded 

Time Set Began: 0800 PST Soaking Time: 7 hours 

Type tlo~ks: #34 Japanese tuna hook; No. Hooks: 87 Bait: squ 

#8 Mustad tuna ci rcle hook 

& saury 

Gangion f4~t.erial and Length: 6 ft. 300# test seine No. Skates: 3-1/2 

twine w/3 ft. 175# test stainless wire 

Direction of Set: West to East Order of Pick up: Last buoy picked 

up first 

Wezther ard Sea Conditions: 15-20 kt. wind, 6-8 ft. seas 

Coninients : No fish caught. 

1-33 
Smmar-y of Longline Fishing Mpthods arid Catch 1nfori:latiorl Made By F/V _- Norcoaster - -- . 

DatX: January 29, 1981 Set No.: 6 

Pos i ti on End Set : Not recorded 

T-iri;c Set Began: 0700 PST Soaking T'me: 5-7 hours 

Type Hooks: #34 Japanese tuna hook; NO. flooks : 200 Bait: squid & saury 

#8 Mustad tuna ci rcle hook 

Giin$o:: t?laterl'al and Length: 6 ft. 300# test seine No. Skates: 9 

twine w/3 ft. 175# test stainless wire 

Llrectiofi of Set: West to East 

\;?.at; ~r ana S?a Canditions: 10 kt. wind, 4 ft. swell 

Order Of Pick up: Last buoy picked 

up first 

Ca: >ents: Two albacore caught. 

1-34 
su,. iiiiiut "3 I) y of Longline Fishing Hethods arid Catch Information Hade By F/V Norcoaster 

Date: January 30, 1981 Set No.: 7 

Position begin Set: 31°101N, 135°00'W 

Position End Set: Not recorded 

Time Set Eeqan: 0700 PST Soaking Time: 6 hours 

Type I!ooks: #34 Japanese tuna hook; No. Kooks: 150 Bait: squid & saury 

#8 Mustad tuna circle hook 

Gangion Ka'cerizl and Length: 6 ft. 300# test seine No. Skates: 6 

twine w/3 ft. 175# test stainless wire; 6-9 ft. 250- 

300# test monofilament on #8 Mustad tuna circle hooks 

4 4 

r Lonlir,et:tS: Six albacore caught. 

1-35 
c 

- 

Summary of Longlinc Fishing Methods and Catch Inforination Made By F/V ___--- Norcoastcr 

Date: February 1, 1981 Set No.: g 

Position Eegin Set: 3I020'N, 135°021W 

Posi tiDn Et;d Set: Not recorded 

Tine Set GeSan: 0730 PST Soaking Time: 6-9 hours 

Type Ijooks: #34 Japanese tuna hook; NO. Hooks: 300 Bait: squid & saury #8 Mustad tuna circle hook 

Gangion Naterial and Length: 6 ft. 300# test seine No. Skatcs: 12 

twine w/3 ft. 175# test stainless wire; 6-9 ft. 250- 

3OO# test monofilament on #8 Mustad tuna circle hooks 

Erection of Set: West to East Ordcrr Of Pick up: Last buoy picked 

up first 

10 kt. wind, 6-8 ft. swell 

Co;i?!ilcrjt.s : Monof i lament gangions predominate. 

.INv 

3 00 

Ft. 

1-36 
up first 

5-10 kt. wind, 5 ft. swell 

Stiii\iIlary of Long1 ine Fishing Methods and Catch Inforniation Made By F/V ___--- Norcoaster 

Dat'e: February 2, 1981 SC!t No. : 10 

Position eegjl-1 Set: 3i0101~, 134°54'W 

Position End Set : Not recorded 

Time Set Recj~n: 0800 PST Soaking Time: 6-9 hours 

Tyre Hocks : #% Mustad tuna c i rcle No. Hookr: 300 Bait: squid & saury 

Gangion Ik'iet-iJ and I-er;gth: 6-9 ft. 250-300# test No. Skates: 12-1/2 

hook 

monofilament 

D.ir.ection of Set: West to East Order of Pick up: Last buoy picked 

d 

loo 

4.. 

3% 

u 

27 0 

ft. 

r! 

COil!ilI?i>tS : Twenty a1 bacore landed. 

1-37 
Suimiry of Lc'';: iric Ti shi rig Methods arid Catch Inforination Made By F/V Norcoaster 

Date: February 3, 1981 Set No.: 11 

Posit.ion Begin 5::: 3loOO'N, 134O5O'W 

T ~yp? I!ool:S: #8 Hustad tuna circle No. Hooks: 350 Bait : squid & saury 

hook 

E%ngior Ikteri?: <bid Lencjih: 6-9 ft. 250-300# test th. Skates: 13 

monof i 1 ament 

Ci:1;c' (Its: 2 tubs or 1 "skate" (1800 ft.) between buoys. Twenty-two albacore landed. 

1-38 
Suisn1ar.y o/ t.otigl-ine Fishing Nethod= and Cstch Info)-nation Made By F/V - Norcoaster 

Date: February 5, 1981 Set No.: 12 

Typ? Ilool.:: #8 Mustad tuna circle No. Hooks: 300 Bait: squid & saury hook 

C;iI-cctic!!i of jet: West to East Ordc: of Pick, Up: Last buoy picked 

up first 

4 4 4 

Coii:ments: 1 tub between first buoy, 2 thereafter. Two albacore landed. 

1-39 
Sunirnary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 23, 1981 Set No.: 1 

Position Segin Set: 31”24’N, 134’18’W 

Fosition Er.d Set: Not recorded 

Time Set Began: 0730 PST Soaking Time: 5-7 hours 

Type Hooks: #34 Japanese tuna hook; NO. Hooks: 150 Bait: squid & saury 

#9 Mustad tuna ci rcle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

ft. 175# test stainless wire; 9 ft. 1/811 nylon seine twine 

w/6 ft. 175# test stainless wire 

Gangion Material and Length: 9 ft. l/@’ polypropylene w/6 No. Skates: 7 

Direction cf Set: West to East 

\/eathe\- and Sea ccndjtiofis: 12 kt. wind, 6 ft. swell 

Order of Pick Up: Last buoy 

picked up first 

300 44 300-7t 300 Ct 

Conlrnents: No albacore landed. All Mustad #9 tuna circle hooks were modified by 

turning the point out slightly. 

1-40 
. 

Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 24, 1981 Set No.: 2 

Time Set Began: 0700 PST Soaking Tinie: 5-7 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 180 Bait: squid & saury 

Gangion Material and Length: 44 ft. 1/8" polypropylene No. Skates: 9 

#9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 43 ft. 1/8" nylon 

seine twine w/3 ft. 175# test stainless wire 

Direction of Set: North to South 

Weather and Sea Conditions: 5 kt. wind, 4 ft. swell 

Order of Pick Up: Last buoy picked 

up first 

Schematic Urawing of Gear: 

Same as Set 1. 

Comments: Nine albacore landed. All #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-41 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 25, 1981 Set No.: 3A 

Position Begin Set: 

Position End Set: 31"36'N, 134"4o'w 

31 "31 'N, 134'36'W 

Time Set Gegati: 0700 PST Soaking Time: 5-8 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 200 Bait: squid & saury 

Gangion Haterial and Length: ft. 1/8" polypropylene No. Skates: 8 

#g Mustad tuna ci rcle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 4+ ft. 1/8" nylon seine 

twine w/3 ft. 175# test stainless wire 

Direction of Set: West to East Order cf Pick Up: Last buoy picked 

up first 

Heather and Sea Conditions: 15 kt. wind, 4 ft. swell 

Schemtic ?:cxing of Gear: 

Save as Set 1. 

Conmer!ts: Fovrteen a1 bacore landed. A1 1 #9 Mustad tuna ci rcle hooks were rnodif ied 

by turning the point out slightly. 

1-42 
E 

Suniiiiary of Long1 i ne Fishing Methods and Catch Information Made By F/V Vi nl and 

Date: January 25, 1981 Set No.: 3s 

Position Begin Set: 31'31 IN, 134'36IW 

Position End Set: Not recorded 

Time Set Began: 1300 PST Soaking Tine: 2 hours 

Type Hooks : #34 Japanese tuna hook; No. H0ok.s : 100 Bait: squid G saury 

Gangion Material and Length: 4$ ft. 1/8" polypropylene No. Skates: 4 

#9 Mustad tuna c i rcle hook; g/O rock 

cod hook; 8/0 c i rcle hook 

w/3 ft. 175# test stainless wire; 43 ft. 1/8" nylon seine 

twine w/ 1 ft. 175# test stainless wire 

Gircction of Set: West to East Order of Pick Up: Last buoy 

Cleather and Sea Conditions: 15 kt. wind, 4 ft. swell 

picked up first 

Schemt i c Grawi ng of Gear : 

Same as Set 1. 

Comments: Five albacore landed. All #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-43 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 26, 1951 Set No.: 4 

Position Begin Set: 3l035IN, 134'26IW 

Position End Set: 3l034IN, 134'33IW 

Time Set Began: 0700 PST Soaking Timc: 4-8 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid & saury 

Gangion tilaterial arid Length: 4$ ft. 1/8" palypropylene No. Skates: 12 

#9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; ft. 1/8" nylon seine 

twine w/ 1 ft. 175# test stainless wire; 6-8 ft. 240# test . 

monof i lament 

Direction of Set: East to West Order of Pick Up: Last buoy 

Heather and Sea Conditions: 40 kt. wind, 15 ft. swell 

picked up first 

Schematic Drawing of Gear: 

Same as Set 1. 

Comme,its : Thi rteen a1 bacore landed. A1 1 ##9 Mustad tuna ci rcle hooks were modified 

by turning the point out slightly. 

1-44 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 28, 1981 Set No.: 5 

Position Begin Set: 3l040IN, 134O31'W 

Position End Set: 31°36'N, 134'25'W 

Time Set Began: 0800 PST Soakirlg Time: 4-1/2 to 7-1/2 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 200 Bait: squid & saury 

Gangion t'laterial and Length: 4$- ft. 1/8" polypropylene No. Skates: 8 

#9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 4$ ft. l/8" nylon seine 

twine w/J ft. 175# test stainless wire; 6-8 ft. 250# test 

monof i 1 arnr-nt 

Direction of Set: Southwest to Northeast Order of Pick Up: Last buoy 

Gleather and Sea Conditions: 12 kt. wind, 15 ft. swell 

picked up first 

Schematic Erawing of Gesr: 

Sa.ne as Set 1. 

Comments: Three albacore landed, A1 1 #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-45 
Summary of Longline Fishing Methods and Catch Information Made By F/V !inland 

Date: January 29. 1981 Set No.: 6 

Position Begin Set: 31°221N, 134O26IW 

Position End Set: 31°23'N, 134°291W 

Time Set Began: 0800 PST Soaking Time: 5-8 hours 

Type Hooks: #34 Japanese tuna hook; NO. Hooks: 200 Bait : squid & saury 

Gangion laterial and Length: 4& ft. 1/811 polypropylene No. Skates: 8 

#9 Mustad tuna circle hooks; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/ 3 ft. 175# test stainless wire; 4& ft. 1/811 nylon seine 

twine w/ 1 ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilament 

Direction of Set: East to West Order of Pick Up: Last buoy 

\.:eatvier ad Sea Conditions: 5-10 kt. wind, 5 ft. swell 

picked up first 

Scheratic Dri:r.:ing of Gear: 

Same as Set 1. 

Comects: Twenty-one albacore landed. All #9 Mustad tuna circle hDoks were modified 

by turning the point out slightly. 

1-4.6 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: January 30, 

Position Begin Set: 

Position End Set: 3 

98 1 Set No.: 7 

3 1 O25 IN, 1 340201 W 

25'N, 134'26'W 0 

Time Set Began: 0730 PST Soaking Time: 5-1/2 to 8 hours 

Type Hooks: #34 Japanese tuna hook; No. tiooks: 217 Bait: squid G saury 

Gangion fbterial and Length: 43 ft. 1/8l' polypropylene No. Skates: 9 

& Mustad tuna ci rcle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/ 3 ft. 175# test stainless wire; 4% ft. 1/8" nylon seine 

twine w/l ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilament 

Direction of Set: East to West Order of Pick Up: Last buoy 

Weather and Sea Conditions: Wind calm, 3-5 ft. swell 

picked up first 

Schematic Drawing of Cear: 

Same as Set 1. 

Conments: Seventeen albacore landed. All #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-47 
Summary of Lrngline Fishing Methods and Catch Inforniation Made By T/V Vinland 

Date: January 31, 1981 Set No.: 8 

Position Begin Set: 

Position End Set: 3l013IN, 134°501W 

31'1 Z'N, 134'42IW 

Time Set Began: 0700 PST Soaking Tinie: 4-8 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid G saury 

Gangion Materiz: and Length: 4$ ft. 1/8" polypropylene No. Skates: 12 

#9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 1755; test stainless wire; 4$ ft. 1/8" nylon seine 

twine w/ 1 ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilanent 

Direction of Set: East to West Order of Pick Up: Last buoy 

Keather and Sea Conditions: 15 kt. wind, 4 ft. swell 

picked up first 

Same as Set 1. 

Cc:;-mnts: Sixteen albacore landed. A1 1 #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-48 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

9 Date: February Set No. : 1, 1981 

Time Set Began: 0715 PST Soaking Time: 5-9 hours 

j Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid & saury #9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 c i rcle hook 

Gangion VdttErial and Length: 4$ ft. 1/8" polypropylene No. Skates: 12 

w/3 ft. 175# test stainless wire; 43 ft. 1/8'l nylon seine 

twine w/l ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilament 

Directioi-1 of Set: East to West 

tfeaiher Cr-d Sea Conditions: 15 kt. wind, 3 ft. swell 

Order of Pick Up: Last buoy picked 

up first 

Schemtic Drcnirig of Gear: 

Same as Set 1. 

Coiniiients : Twenty-two a1 bacore landed. 

by turning the point out slightly. 

A1 I #9 Mustad tuna ci rcle hooks were modified 

1-49 

-" 
Summary of Longline Fishing Methods and Catch Information Made By F/V --. Vinland 

Date: February 2, 1981 Set No.: 10 

Position Begin Set: 31"02'N, 134'54'W 

Position End Set: 31"01'N, 134'59'W 

Time Set Began: 0700 PST Soakilig Time: 5-1/2 to 9-1/2 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid & saury 

#9 Mustad tuna circle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 4s ft. 1/8" nylon seine 

twine w/l ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilament 

Gangion Material and Length: 43 ft. 1/8li polypropylene No. Skates: 12 

Direction of Set: East to West Order of Pick Up: Last buoy picked 

L'cather and Sea Conditions: Wind calm, 3 ft. swell 

up first 

Sciiciratic Drawing of Gear: 

Same as Set 1. 

Comments: Thirty-one albacore landed. All #9 Mustad tuna circle hooks were modifie

by turning the point out slightly. 

1-50 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: February 3 1981 Set No.: 11 

Position Begin Set: 31"02'N, 134'54'W 

Position End Set: 31 "01 IN, 134"59'W 

Time Set Began: 0700 PST Soaking Tine: 5-1/2 to 9-1/2 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid & saury 

Gangion [laterial and Length: 44 ft. 1/8" polypropylene No. Skates: 12 

, 

#9 Musted tuna ci rcle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 4$ ft. 1/8" nylon seine 

twine w/l ft. 175# test stainless wire; 6-8 ft. 250# test 

monofilament 

Direction of Set: East to West Order of Pick Up: Last buoy picked 

Weather and Sea Conditions: 12 kt. windy 5 ft. swell 

up first 

Schemtic Draviing of Gear: 

Same as. Set 1. 

Comments: Fifteen albacore landed. All #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-51 
Summary of Longline Fishing Methods and Catch Information Made By F/V Vinland 

Date: February 5, 1981 Set NO.: 12 

Position Begin Set: 

Position End Set: Not recorded 

SW corner Erben Bank 

32"40'N, 132"ll 'W 

Time Set Began: 0700 PST Soaking Time: 5-9 hours 

Type Hooks: #34 Japanese tuna hook; No. Hooks: 300 Bait: squid & saury 

Gangion Material and Length: 4; ft. 1/8" polypropylene No. Skates: 12 

#9 Mustad tuna ci rcle hook; 9/0 rock 

cod hook; 8/0 ci rcle hook 

w/3 ft. 175# test stainless wire; 43 ft. 1/8" nylon seine 

twine w/l ft. 175# test stainless wire; 6-8 ft. 250# test 

monofi?ament 

Direction of Set: West to East 

Weather and Sea Conditions: lo kt- wind, ft. 

Order of Pick Up:Last buoy picked 

up first 

Scherfiatic Draxing of Gear: 

Same as Set 1. 

Comments: Two albacore landed. All #9 Mustad tuna circle hooks were modified 

by turning the point out slightly. 

1-52