DRUCKER: COHO SALMON OF KARLUK RIVER SYSTEM 



migration at Karluk Lake is primarily nocturnal, 

 although some daytime migration does occur. 



A prolonged freshwater residence by juvenile 

 coho salmon in Karluk Lake should result in a 

 greater total freshwater mortality, but the re- 

 sulting larger smolts should have a lower total 

 marine mortality. Coho salmon at Karluk may 

 have an even lower marine mortality than sock- 

 eye salmon, in part because the coho salmon 

 spend less time at sea. 



LITERATURE CITED 



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