I50r 



100 

 50 



50 



X 100 



50 



CD I50r 



2 100 



50 



50 



100 



50 



MAY 



JUNE 



JULY 



AUGUST 



3 4 5 6 AGE 



1955 



2500r 

 2000 

 1500 

 1000 

 500 h 



1500 



1000 



500 



500 



JUNE 



JULY 



AUGUST 



3 4 5 6 

 1956 



Figure 2. --Age composition by months of chum salmon sampled 

 aboard Japanese motherships in 1955 and 1956. 



