United States Department of the "Interior 

 Oscar L. Chapman, Secretary 

 Fish and Wildlife Service 

 Albert M. Day, Director 



Special Scientific Report - Fisheries 

 No. U9 



THE JAPANESE SKIPJACK FISHERY 



Translated from the Japanese language by 



W. G. Van Campen 

 Pacific Oceanic Fishery Investigations 



CONTENTS 

 The Skipjack Fishery, By lutaka L"namura 1/ 

 Chapter I Development of the Skipjack Fishery 1 



Page 



Section 1 Period of the Coastal Fishery ..., , 2 



Section 2 Period of the Fishery in Adjacent Waters , i^ 



Section 3 Pferiod of the Fishery in Distant Waters ,,, 6 



Section U ft*esent Condition of the Skipjack Fishery 8 



Chapter II Characteristic s of the Skip j ack , . . , 10 



Section 1 Outline of the Distribution 10 



Section 1 Outline of Migrations , 16 



Paragraph 1 Ecology of the Skip j ack . . . o , 17 



Paragraph 2 Migrations 19 



Sections Bait 23 



Section 4- Characteristics 25 



Paragraph 1 The Skipjack's Eyes , 25 



Paragraph 2 SvrLmming Characteristic s 26 



ftiragraph 3 Other Characteristic s 28 



Chapter III The Skipjack Fishery 29 



"^ From 84i8a n iCoza. loe yjxt 2i j^ Fiaher.v . Vol, 6, Fishing Section, 

 pp. 17-9^. Published by Dai Nippon Suisan Kai /"japan Fisheries 

 Assoc iation_7> Tokyo, March 5, 19^9. 



