611 



XFWS-A 611 1-8 (1970) 

 U.S. Fish Wildl. Serv. 

 Spec. Sci. Rep. Fish. 



Laboratory Tests of an Electrical Barrier for 

 Controlling Predation by Northern Squawfish 



r ^ s ^^^ i 



RAR Y 



AUG I ©71 



mDSHQL Et MASS. 



SPECIAL SCIENTIFIC REPORT-FISHERIES No. 611 



UNITED STATES DEPARTMENT OF THE INTERIOR 



