UNITED STATES DEPARTMENT OF THE INTERIOR 



Stewart L. Udall, Secretary 



David S. Black, 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, H. E. Crowther, Director 



Horizontal and Vertical Distribution 

 of Juvenile Salmonids 

 in Upper Mayfield Reservoir, Washington 



By 

 JIM ROSS SMITH, JOHN R. PUGH, and GERALD E. MONAN 



United States Fish and Wildlife Service 

 Special Scientific Report-- Fisheries No. 566 



Washington, D.C. 

 April 1968 



