Nakagome, J. 1969. On the cause of annual variation 

 of albacore catch in the Coral and Tasman Seas - 

 III. Monthly and annual variation of distribution 

 of sea surface temperature. Bull. Jpn. Soc. Sci . 

 Fish. 35:50-54. 



Showed annual fluctuations of surface iso- 

 therms and from these inferred water mass 

 locations . 



KEY WORDS: tuna, albacore, distribution, 

 season, temperature, water mass. 



Nakagome, J., H. Tsuchiya, S. Suzuki, S. Tanaka, T. 

 Sakakibara, and H. Honda. 1965. Age composition 

 of Atlantic tunas related with distribution of 

 water temperature and distance from land - I. 

 Yellowfin tuna. Bull. Jpn. Soc. Sci. Fish. 

 31:97-100. 



Age composition of fish was related to water 

 temperature at the surface and at 500 m and 

 to the distance from the continent. 



KEY WORDS: tuna, yellowfin, age, tempera- 

 ture, depth. 



Nakagome, J., H. Tsuchiya, S. Suzuki, S. Tanaka, T. 

 Sakakibara and H. Honda. 1965. Age composition 

 of Atlantic tunas related with distribution of 

 water temperature and distance from land - II. 

 Albacore. Bull. Jpn. Soc. Sci. Fish. 31:101-104. 



Age composition was found to be related to 

 water temperatures at the surface, 50 and 100 

 m, and to the distance from continents. Age 

 of fish was younger in lower temperatures or 

 near land; those in higher temperatures and 

 farther offshore were older. 



KEY WORDS: tuna, albacore, temperature, 

 depth, age. 



61 



