_ .^0 WMOsp^, 



"''■■wf\t L'^ '^'"^ 



U.S. DEPARTMENT OF COMMERCE 

 Maurice H. Stans, Secretary 



NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION 

 Robert M. White, Administrator 



NATIONAL MARINE FISHERIES SERVICE 

 Philip M. Roedel, Director 



NOAA Technical Report NMFS SSRF-646 



Dissolved Nitrogen Concentrations in 

 the Columbia and Snake Rivers in 

 1970 and their Effect on 

 Chinook Salmon and Steelhead Trout 



WESLEY J. EBEL 



"Marine 



UBRARy 



31972 



SEPl 

 V»/oods Hole. Mass. 



SEATTLE, WA. 

 August 1971 



For sale by the Superintendent of Documents, U.S. Government Printing Othce 

 Washington, D.C. - Price 20 cents Stock number 0320-0020 



