UNITED STATES DEPARTMENT OF TUB INTERIOR, Stewart L. Udall, Secretary 



FISH AND WILDLIFE SERVICE. Clarence F. Pautzke, Commissioner 



Bureau ok Commkrcial Fisheries, Donald L. McKernan, Director 



AN EVALUATION OF FYKE TRAPPING AS 

 A MEANS OF INDEXING SALMON 

 ESCAPEMENTS IN TURBID STREAMS 



by 



Howard D. Tait, Jerry L. Hout, 



and 



Fredrik V. Thorsteinson 



United States Fish and Wildlife Service 

 Special Scientific Report- -Fisheries No. 428 



Washington, D. G. 

 June 1962 



