Kikawa, S., T. Shiohama, Y. Morita, and S. Kume. 1977. 

 Preliminary study on the movement of the North 

 Pacific albacore based on the tagging. Bull. Far 

 Seas Fish. Res. Lab. (Shimizu) 15:101-113. 



Described location and timing of Japanese 

 local albacore fishery. Albacore tagged in 

 the Kuroshio front grounds moved east; one 

 was recovered in the U.S. fishery. Some fish 

 moved north to leave the frontal zone early 

 in the season. Long-term recoveries occurred 

 throughout the pole and line area, suggesting 

 a regular seasonal movement which is repeated 

 yearly. Most fish did not go to the U.S. 

 area, but entered the longline fishery. It 

 was considered unlikely that albacore in the 

 west were supported only by recruits from the 

 eastern Pacific. 



KEY WORDS: tuna, albacore, migration, fronts. 



Klawe, W.L. 1963. Observations on the spawning of 

 four species of tuna ( Neothunnus macropoterus , 

 Katsuwonus pelamis , Auxis thazard and Euthynnus 

 lineatus ) in the eastern Pacific Ocean, based on 

 the distribution of their larvae and juveniles. 

 [In Engl, and Span.] Inter-Am. Trop. Tuna Comm. 

 Bull 6:449-540. 



Examined vertical distribution of larvae and 

 found they were limited to layers above the 

 thermocline. Gave areas and seasons of prin- 

 ciple spawning. 



KEY WORDS: tuna, yellowfin, skipjack, black 

 skipjack, Auxis , larvae, distribution, spawn- 

 ing, oceanography, bullet tuna, frigate tuna. 



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