Yabe , H. , S. Ueyanagi, and H. Watanabe. 1966. Studies 

 on the early life history of bluefin tuna, Thunnus 

 thynnus , and on the larva of the southern bluefin 

 tuna, T. maccoyi. [In Jpn., Engl, summ.] Rep. 

 Nankai Reg. Fish. Res. Lab. 23:95-129. 



Described larvae and distribution of their 

 occurrence in the western Pacific and Indian 

 Oceans. The area in which they were distri- 

 buted corresponded to areas of the Kuroshio 

 Current and Kuroshio Countercur rent . 



KEY WORDS: tuna, bluefin, southern bluefin, 

 spawning, season, migration, temperature, 

 thermocline, depth. 



Yamanaka, H. 1956. Vertical structure of the ocean 

 relevant to fishing conditions for albacore adja- 

 cent to 10°S in the western South Pacific. [In 

 Jpn., Engl, summ.] Bull. Jpn. Soc. Sc i . Fish. 

 21 (12) : 1187-1193. 



Discussed the vertical structure from re- 

 search cruise data compared to albacore catch 

 distribution for the various seasons. Postu- 

 lated that hydrological fluctuations between 

 years and areas may be negligible for the 

 general locality considered. 



KEY WORDS: tuna, albacore, currents, discon- 

 tinuity, season, distribution, depth, catch, 

 boundaries . 



Yamanaka, H. 1962. Tunas and oceanic conditions. [In 

 Jpn., Eng . abstr.] J. Oceanogr. Soc. Jpn. 20th 

 Annu . : 663-678 . 



Lists institutions participating in tuna and 

 oceanography studies and considers types of 

 investigations needed. 



KEY WORDS: color, transparency, salinity, 

 currents, water masses, productivity. 



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