Uhited States Department of the Interior 

 Oscar L. Chapman, Secretary 

 Fish and Wildlife Service 

 Albert M. Day, Director 



Special Scientific Report - Fisheries 

 No. 18 



SPAWNING GROUNDS OF TDNA. AND SKIPJACK 



Translated from the Japanese language by SCAP translators 



Edited by 

 6« M* Shimada 



and 

 W. G» Van Cam pen 

 Rioifie Oceanic Fishery Investigations 



CONTENTS 



Preface Page 



1* A symposium on the investigation of tuna and 1 



skipjack spawning grounds l/.*..* 



2* A contribution to the study of tuna spawning 



grounds by Kenso Ikebe 2j % .•••• 12 



l/ From South Sea Science [Kagaku Nanyo] Vol, 4, No. 1, 

 pp. 64-75. July 1941. _ 



2/ [From South Sea Fishery News Nanyo Suisan Joho] Vol. 5, 

 No. 4, pp. 9-12 September 2, 1941. 



