Fisher and Pearcy: Distribution, migration, and growth of Oncorhynchus tshawytscha 



283 



May 



June 



July 



Aug 



Sep 



B 



100 200 300 100 200 300 100 200 300 100 200 300 100 200 300 



FL (mm) 



July 1984 



May 1985 



D 

 Q. 

 U 



CO 



CA 



0.5 



0.0 



100 200 300 



FL (mm) 



100 200 300 



FL (mm) 



Figure 2 



Length-frequency distributions of juvenile chinook salmon, Oncorhynchus tshawytscha, by month and area (A, B, and C in 

 Fig. 1) for all years combined, for July 1984 off northern California (CA) and the west coast of Vancouver Island (BC) and 

 for May 1985 off the mouth of the Columbia River (CO). Total effort (number of sets, in italics) and total catch per unit of 

 effort (CPUE) are indicated for each month and area. The size-frequency distributions of coded-wire tagged (CWT) age- 1.0 

 Columbia River fish are indicated in black, lengths of other CWT fish are indicated by letters. 



