FISHERY BULLETIN: VOL. 86, NO. 2 



1983 



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SEPTEMBER 



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was 61%, 42%, 81%, and 77% respectively, of that 

 in June of the same years. In September 1983, a 

 strong El Nino year (Pearcy and Schoener 1987), 

 almost all yearling juvenile coho salmon were 

 caught at the extreme northern transect off Cape 

 Flattery, but in August or September of other 

 years they were more evenly distributed off the 

 Columbia River and the Washington coast. 



In July 1984, we sampled both north (15 sets off 

 the west coast of Vancouver Island) and south (5 



sets off northern California) of Washington and 

 Oregon. Catches per set of yearling and subyear- 

 ling juvenile coho salmon were higher off the 

 Columbia River (5.1), the area of greatest smolt 

 production, and off Washington (3.5) than off 

 Vancouver Island (1.8), Oregon (1.7), and Califor- 

 nia (1.2). This shows that as late as July juvenile 

 coho salmon occurred in coastal waters of all re- 

 gions and were not concentrated off Vancouver 

 Island or California. 



180 



