CO 



600 



500 



O 



=! 400 

 ? 300 



X 



CO 



O 



CO 



200 



100- 



0, 



Z) 



SAN PEDRO 



1 939-40 



38 37 36 35 34 33 



Z AGE 1 2 3 4 5 6 



Figure 19.--Catch in millions of fish, by age and year class, for San Pedro for the season 



1939-40. 



21 



