Table 81. --Fishing conditions by sections (northeastern 

 sea area north of 40 N. ) 



Table 82. --Fishing conditions by months (northeastern 

 sea cirea, 35 to 40 N. ) 



Although they were omitted from the table, one yellowfin each was taken in July and 

 September and four were taken in December. There are few data for the summer season, but 

 as isiX as the table shows black tuna are taken only in the winter. Bigeye tuna are most abundant 

 in the summer, with rather high catch rates appearing around July. Albacore show their highest 

 catch rate of 4. 3 in December, the main fishing season being from November to January. Spear- 

 fishes are scarce from Februaury to April, but considerable numbers are taken in aull other 

 nnonths, with the maximum catch rate of slightly over 1.5 appearing in October. 



The data from tables 80 and 82 are combined in table 83. 



From this table it cam be 

 seen that the center of the albacore grounds In December is at 146 to 148 E, , and that it shifts 

 to 148° to 150° E. in January. In the other months the data Are so poorly distributed that a com- 

 parison is completely impossible. 



With regard to the spearfishes, which follow the albacore in importance in the catch, 

 the following table shows the changes in their fishing by species. The table also includes sharks. 



115 



