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U.S. DEPARTMENT OF COMMERCE 

 Peter G. Peterson, Secretary 



NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION 

 Robert M. White, Administrator 



NATIONAL MARINE FISHERIES SERVICE 

 Philip M. Roedel, Director 



NOAA Technical Report NMFS SSRF-660 



A Freshwater Fish Electro-Motivator (FFEM)- 

 Its Characteristics and Operation 



JAMES E. ELLIS and CHARLES C. HOOPES 



SEATTLE, WA 

 November 1972 



