Igeta, Y. 1965. A consideration on the relation be- 

 tween skipjack and albacore fishing grounds and 

 vertical distribution of water temperature deter- 

 mined by bathythermograph. [In Jpn.] Iji Summary of 

 proceedings of tuna fisheries research. Tuna 

 Fishing (34 & 35) :63. 



[Not read.] 



Ingham, M.C., S.K. Cook, and K.A. Hausknecht. 1977. 

 Oxycline characteristics and skipjack tuna distri- 

 bution in the southeastern tropical Atlantic. 

 Fish. Bull., U.S. 75:857-865. 



Reviewed possible mechanisms for oxygen mini- 

 mum layers in the ocean. Showed an inverse 

 relationship between the sighting of skipjack 

 schools and the depth to the oxygen minimum 

 layer . 



KEY WORDS: tuna, skipjack, oxygen, distri- 

 bution . 



Inoue, M. 1958. Studies on movements of albacore 

 fishing grounds in the northwest Pacific Ocean. 

 I. Adaptability of water temperatures for alba- 

 cores in the winter season from observations of 

 records on catches and optimum water temperatures 

 by fishing boats. [In Jpn., Engl, summ.] Bull 

 Jpn. Soc. Sci. Fish. 23:673-679. 



Noted a tendency for higher temperatures to 

 be associated with larger fish; lower temper- 

 atures for small ones. Temperatures below 

 16.3 and over 22.8 C were considered "bar- 

 riers" to albacore migration. Described 

 seasonal movements of fish by size. 



KEY WORDS: tuna, albacore, season, migra- 

 tion, size, distribution, temperature, depth. 



31 



