NOAA TR NMFS SSRF-646 



A UNITED STATES 

 DEPARTMENT OF 

 COMMERCE 

 PUBLICATION 







NOAA Technical Report NMFS SSRF-646 



U.S. DEPARTMENT OF COMMERCE 



National Oceanic and Atmospheric Administration 



National Marine Fisheries Service 



Dissolved Nitrogen Concentrations in 

 the Columbia and Snake Rivers in 

 1970 and their Effect on 

 Chinook Salmon and Steelhead Trout 



r 



WESLEY J. EBEL 



SEATTLE, WA. 



August 1971 





Marine Biologtcal L^bor iory 

 LI BRA ^<^ 

 5PP1 31972 

 Woods Hole. 



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