United States Departaent of the Interior 

 Osoar L* Chapman, Secretary 

 Fish and Wildlife Service 

 'Albert M, Day, Director 



Special Scientific Report - Fisheries 

 No. 22 



MORFHOJTETRY, GROWTH, AND AGE OF TUNAS 



Translated from the Japanese language by 



SCAP translators and W. G. Van Campen 



Edited by 



B» M* Shimada 



and 



W. G. Van Campen 

 Pacific Oceanic Fishery Investigations 



CONTENTS 



Preface Page 



1. Measurements of yelloirfin tuna fropi the Equatorial 



Counter current Area, By Kenzo Ikebe _l/» ••• 1 



2» The correlation between the length and weight of yellowfin 



tuna. By Hitoshi Hiratsuka and Seiichi Mori _2/, . 8 



3, Grovrth curves of blue-fin tuna and yellow-fin tuna based 



on the catches near Shigedera on the West Coast of the 



Province of Izu, By Kinosuke Kimui-a 3/«.» 11 



4» Four papers on the morphometry and age o7 tropical tunas. 



By Kenz? Ikebe _4/ 17 



On the age of yellowfin tuna from Palau waters ••.••••• 17 



Measurements and ages of tuna from Palau waters .20 



Measurements of yellowfin tuna from south of the Marshalls , • 23 



On the measurements of albacore and yellowfin tuna from 



Saipan waters ....•26 



\J From South Sea Fishery News [Nanyo Suisan Joho], Vol. 5, No. 3, pp. 5-13. 



June 25, 1941. 

 2/ From the Formosan Fisheries ^'agazine [Taiwan Suisan Zasshi], No. 241, 



pp. 8-10, 1935. 

 3/ From the Bulletin of the Japanese Society of Scientific Fisheries, 



[Nippon Suisangakkai Shi], Vol. 1, No, 1, May 1932, 

 V From the South Sea Fishery News, Vol, 3, No. 10., Vol. 4, No. 1, 



Vol, 4, No, 2, Vol. 4, No. 5, respectively. 



