UNITED STATES DEPARTMENT OF THE INTERIOR 



Stewart L. Udall, Secretary 



John A. Carver, Jr., Under Secretary 



Stanley A. Cain, Assistant Secretary for Fish and Wildlife and Parks 



FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner 



Bureau of Commercial Fisheries, Donald L. McKernan, Director 



Some Effects of DDT on the Ecology of 

 Salmon Streams in Southeastern Alaska 



By 

 ROGER J. REED 



United States Fish and Wildlife Service 

 Special Scientific Report- -Fisheries No. 542 



Washington, D.C. 

 November 1966 



