MURPHY, GARTH I. and R. S. SHOMURA 



1953a. Longline fishing for deep-swimming 

 tunas in the central Pacific, 1950- 

 1951. U. S. Fish and Wildlife Serv- 

 ice, Spec. Sci. Re pt . --Fisheries 

 No. 98, 47 pp. 



1953b. Longline fishing for deep-swimming 

 tunas in the central Pacific, January- 

 June 1952. U. S. Fish and Wildlife 

 Service, Spec. Sci. Rept. --Fisheries 

 No. 108, 32 pp. 



1955. Longline fishing for deep-swimming 

 tunas in the central Pacific, August- 

 November 1952. U. S. Fish and 

 Wildlife Service, Spec. Sci. Rept. -- 

 Fisheries No. 137, 42 pp. 



NOMURA, TOSHIZO (Editor) 



1954-55. Survey of the high-seas tuna fish- 

 eries based on landings at Misaki, 

 Tokyo, andYaizu. Publishedmonthly 

 by Kanagawa Prefecture Fisheries 

 Experiment Station in Tuna Fishing, 

 9:1-25; 10:1-31; 11:1-31; 12: 1-40; 

 13:1-44; 14-15:1-30, 31-54; 16: 1-30; 

 17:1-34; 18:13-40; 19:1-16; 20:1-36. 



OTSU, TAMIO 



1954. Analysis of the Hawaiian long-line 

 fishery, 1948-52. U. S. Fish and 

 Wildlife Service, Comm. Fish. Rev. 

 16(9): 1-17 (also issued as Separate 

 No. 376). 



SHOMURA, RICHARD S. and G. I. MURPHY 



1955. Longline fishing for deep- swimming 

 tunas in the central Pacific , 1953. 

 U. S. Fish and Wildlife Service, Spec. 

 Sci. Rept. --Fisheries No. 157, 70 pp. 



TESTER, ALBERT L. 



1956. Recent equatorial tuna research. 

 Pan American Fisherman 10(8): 10, 

 11, 21. 



VAN CAMPEN, WILVAN G. 



1954. Tuna fishing at American Samoa, 

 January-April 1954. U. S. Fishand 

 Wildlife Service, Comm. Fish. Rev. 

 16(11): 1-9 (also issued as Separate 

 No. 382). 



APPENDIX 

 Annotated List of 1954 Cruises 



Vessels: North Americ an and Alrita (Jangaard 

 expedition) 



Cruise No. : 1 



Cruise period: January 12 to March 7, 1954 



Gear: The longline gear used differed only 

 slightly from the most recent 11 -hook 

 gear used by POFI (Mann 1955). The 

 major differences were the lengthening 

 of the mainline to 1620 feet and the addi- 

 tion of 4 extra droppers, making a total 

 of 15 droppers per basket. 



Vessels: North American and Alrita (Jangaard 



expedition) 

 Cruise No. : 2 



Cruise period: March 1 3 to May 15, 1954 

 Gear: The gear used was identical with the gear 

 used on the first Jangaard expedition. 



Vessel: Charles H. Gilbert 



Cruise No. : 15 



Cruise period: February 18 to April 26, 1954 

 Gear: Equal numbers of POFI 6- and 11 -hook 

 cotton gear were fished at all stations. 

 The lengths of the droppers were 10 

 fathoms on the 6 -hook gear and 3 fathoms 

 on the 11-hook gear. Ten-fathom float 

 lines were used on both gear types except 

 at stations 7-32, at which both 1- and 10- 

 fathom float lines were used. 



Vessels: Oceanic and Brothers 



Cruise No. : 1 



Cruise period: May 20 to June 23, 1954 



Gear: The mainlines used by both vessels were 

 constructed of 5/64" hard lay Hackensack 

 stainless steel cable made up into reels 

 1600 fathoms in length. The reels of 

 cable were joined by means of Brummel 

 hooks. A pair of bullet swivels 1 fathom 

 apart were inserted every 45 fathoms 

 along the mainline. Two sets of 3 brass 

 beads were pressed on to the mainline 

 between the pair of swivels. The droppers 

 were attached between the swivels and 

 beads. The gear on the O ceani c was usu- 

 ally made up with 11 or 14 hooks between 

 floats. The Brothers usually set her lines 

 with 14 hooks between buoys. 



The float lines were made up of 40-pound 

 tarred manila line with an A-K snap on 

 the end and were either 10 or 25 fathoms 

 in length. The floats used were of t w o 

 types. One was the regular metal oxygen 

 tank used by POFI and the other was 16- I 



11 



