150 

 100 

 50 



500 

 250 



JUNE 



X 



^ i500r 



u. 



1000 

 u. 



O 



750 



Ul 



I 500 

 ^ 250 



1000 

 750 

 500 

 250 



200r 

 I 50 

 100 

 50 



JULY 



I50r 



100 



50 



AUGUST 



150 



100 



50 



MAY 



1500 



1000 



500 



2500 



2000 

 MAY ,500 



1000 



JUNE 



2500r 



2000 



1500 



1000 



500 



500 



JULY 



1500 



1000 



500 



JUNE 3ooor 



2500 



2000 



1500 



1000 



JULY 



m 



1000 

 AUGUST 



500 



AUGUST 



500 



2000 

 1500 

 1000 

 500 



MAY 



JUNE 



JULY 



2 3 

 954 



2 3 2 3 



OCEAN AGE 

 1955 1956 



2 3 

 1957 



Figure 1. — Ocean age con^^osition by months of red salmon sampled 

 aboard Japanese motherships from 1951i to 19^7. 



