Table 53. --Fishing conditions by sections (20 to 25 N. , 

 130° to 140° E.) 



The yellowfin are most abundant around 134 to 136 E. , that is, in the vicinity of 

 K5h0 Shocil, as are bigeye too. Few albacore are taken, but they appear to show sonne tendency 

 to increase to the eastward. The spearfishes tend to be most numerous in the extreme eastern 

 portion, that is west of the Volcano Islands, but it is difficult to state this definitely because of 

 the paucity of the data. 



Table 54 shows fishing conditions in the same sections north of 25 N. 



Black tuna clearly decrease sharply from west to east, and yellowfin are most 

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abundant between 134 and 136 E. The bigeye have a distribution resembling that of the yellow- 

 fin, and albacore catch rates increase as one goes eastward, the so-called KinanshS fishing 

 grounds being thus shown to be a superior albacore ground. 



It is difficult to detect aJiy clear trend for the spearfishes, but the catch rates Jire 



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somewhat better in the extreme western portion, and between 136 and 138 E. 



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Table 54, --Fishing conditions by sections (25 to 30 N, , 



130° to 140° E.) 



89 



