part of the area west of 150°E. In waters south of 35°N. the coefficients 

 of variation of the catch rates are 30 to 40 percent and the fishing condi- 

 tions appear to be rather stable. 



Table 8 shows the length (weight) composition of the catch in this 

 sea area. 



Table 8. --Albacore size composition, December 1948-51, 150 E.- 

 I60°E. longitude (in percentages) 



Note: "Mean (W)" is the average weight of albacore caugh_t between 

 140°E. and 150°E. Weights are in kan / 8. 27 lbs._/. 



The fish are clearly larger in the south and smaller in the jiorth. 

 Comparing this with the composition of the catch at 140 E. to 150 E. , 

 in terms of weight the fish are about 1. 5 times larger. 



Table 9 shows the size composition of the fish in this area divided 

 into eastern and western parts in order to compare the size of fish on each 

 side of the area of low catch rates. 



Table fsicj 9. --Comparison of length frequencies east and west 

 of i'SS^'E. longitude 



30 — 34' N 



I50-I5^'E 



I55-I60'E 



no icm) 



45 



