UNITED STATES DEPARTMENT OF THE INTERIOR 



U.S. Fish and Wildlife Service 



BUREAU OF COMMERCIAL FISHERIES 



Effects of Lamprey Larvicides on Invertebrates 



in Streams 



By 



RICHARD L. TORBLAA 



Contribution No. 366, Bureau of Commercial Fisheries 

 Biological Laboratory, Ann Arbor, Michigan 48107 



United States Fish and Wildlife Service 

 Special Scientific Report.-Fisheries No. 572 



Washington, D.C. 

 August 1968 



