Meaauraments of Yollowfin Tuna from South of the fferslialls 



by 

 Kenzo Ikebe, Technician 



[from South Sea Fiehory News QJanyo Suiaan JohoJ, Vol»A, No, 2.] 



Iterch 5, 19/^0 



Prom March to June of 1939 the South Seas Colonization Company's boat, the 

 Ebon Maru (195 tons, 320 HP), with the Company's Technician Haruo Watanabe and 

 Assistant Technician Seilchi Shimada aboard, carried out experimental tuna long- 

 lining in waters south of the Mnrahalls. The following is the result of an at- 

 tempt to determine the ages of the yellowfin tuna reported in the catch data 

 from that cruise c 



Table 1 



Date -» May 8 Position of fishing ground — 6° OS'S, 16^° 26'E 



TN. 1 kan s 8,27 pounds 



Table 2 



Date ~ May 10 Position of fishing ground — 9° 00 'S, 163° 30 'E 



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