SPAWNING OF ALBACORE IN THE SOUTH PACIFIC OCEAN 



161 



Figure 11. — Length frequencies of albacore in the South 

 Pacific Ocean. (Japanese data reproduced from the re- 

 port for 1959, figure 7, page 319, of the Nankai Regional 

 Fisheries Research Laboratory.) 



ing of the North Pacific albacore, constitutes 

 evidence that the stocks in the South Pacific 

 and the North Pacific are independent of each 

 other. 



The major e.xploitation in the South Pacific 

 at present is of the subtropical resource of alba- 

 core in the area between 10° S. and 30° S. latitude. 

 Japanese data indicate the presence of smaller 

 albacore south of the present fishing grounds 

 (south of 30° S.). These smaller fish may be 

 part of a large resource not presently exploited, 

 the counterpart of the North Pacific temperate 

 water albacore. 



LITERATURE CITED 



Blunt, C. E., Jr. 



1954. Two mid-Pacific recoveries of California -tagged 

 albacore. California Fish and Game, vol. 40, No. 3, 

 p. 339. 



Ganssle, D., and H. B. Clemens. 



1953. California-tagged albacore recovered off Japan. 

 California Fish and Game, vol. 39, No. 4, p. 443. 

 June, F. C. 



1953. Spawning of yellowfin tuna in Hawaiian waters. 

 U.S. Fish and Wildlife Service, Fishery Bulletin, No. 

 77, vol. 54, p. 47-64. 



Nankai Regional Fisheries Research Laboratory. 

 1959. Average year's fishing condition of tuna longline 

 fisheries, 1958 edition. Federation of Japan Tuna 

 Fishermen's Co-operative Associations, Tokyo, Japan- 

 Two volumes, Text and Atlas. 414 p., 72 charts. 



Otsu, T. 



1959. A survey of the American and Japanese albacore 

 tuna fisheries in the Pacific through examination of 

 catch statistics. if.S. Fish and Wildlife Service, 

 Commercial Fisheries Review, vol. 21, No. 1, p. 1-12. 



1960. Albacore migration and growth in the North 

 Pacific Ocean as estimated from tag recoveries. 

 Pacific Science, vol. 14, No. 3, p. 257-266. 



Otsu, T., and R. N. Uchida. 



1959a. Study of age determination by hard parts of 

 albacore from central North Pacific and Hawaiian 

 waters. U.S. Fish and W'ildlife Service, Fishery 

 Bulletin, No. 150, vol. 59, p. 353-363. 



1959b. Sexual maturity and spawning of albacore in the 

 [North] Pacific Ocean. U.S. Fish and Wildlife Service, 

 Fishery Bulletin, No. 148, vol. 59, p. 287-305. 



SUDA, A. 



1956. Albacore of the Pacific and Indian Oceans. 

 Tuna Fishing, No. 34, the Investigative Society of 

 Tuna Fishery, Japan. Oct. 1956, p. 11-15. (Trans- 

 lation from the Japanese by W. G. Van Campen in 

 the files of the Bureau of Commercial Fisheries 

 Biological Laboratory, Honolulu.) 



Ueyanagi, S. 



1955. On the ripe ovary of the albacore, Germo germo 

 (Lacepede), taken from the Indian Ocean. Japanese 

 Society of Scientific Fisheries, Bulletin, vol. 20, No. 12, 

 p. 1050-1053. (Translation from the Japanese by 

 W. G. Van Campen in the files of the Bureau of Com- 

 mercial Fisheries Biological Laboratory, Honolulu.) 



1957. Spawning of the albacore in the western Pacific. 

 Report of the Nankai Regional Fisheries Research 

 Laboratory, No. 6, p. 113-124. (Translation from 

 the Japanese by W. G. Van Campen in the files of the 

 Bureau of Commercial Fisheries Biological Laboratory, 

 Honolulu.) 



Van Campen, W. G. 



1954. Tuna fishing at American Samoa, January-April 

 1954. U.S. Fish and Wildlife Service, Commercial 

 Fisheries Review, vol. 10, No. 11, p. 1-9. (Also 

 separate No. 382.) 



V. S. GOVERNMENT PRINTING OFFICE : 1962 O -620267 



