O' [ ii Hi l Tiy iiii|i i ii|iiii |iTTr| iiiii | iiii | iiii | iii i| iiii | iii i| iiin|iiii|iiiiTiiii|iiii|iiii| 

 I 5 10 15 20 25 30 5 10 15 20 25 30 5 10 15 20 25 30 



JULY 



AUGUST 



SEPTEMBER 



Figure 4. —Seasonal abundance of adult pink salmon in the Intertidal (main stream) and 

 fresh-water (East and West Forks) areas of Olsen Creek, based on counts made during 

 periodic foot surveys— July through September 1961. 



