Table 7. --Collation of catch rate and surface temperature, North 

 Pacific, January (cont'd) 



Table 8. --Frequency of coefficients of variation of catch rates in 

 the North Pacific at 140°-150°E. 



Note: "M" indicates the average. 



If we compare in terms of the coefficient of variation the varia- 



o o 



bility in fishing conditions aunong unit areas, as between 30 N.-32 N. 



and 32 N.-34 N. at 170°E. to 180 , we get 41.8 percent for the former 



and 40.0 percent for the latter, showing alniost no north-south difference. 



Consequently, we can conclude that in the waters farther offshore, although 



we may see considerable differences in fishing conditions as between areas, 



the fishing is relatively stable within a given area. 



(2) Kinein Fishing Ground 



It has already been noted that in January the albacore catch rates 

 in this sea area take a sudden jump upward. At this season areas of high 



70 



