Successful Behavioral Devices for Fish Protectionby E. P. Taft, Stone & Webster Environmental, Services, United States,
Abstract: Since 1987, the Electric Power Research Institute (EPRI) has been sponsoring studies of behavioral barrier devices for protecting fish at hydroelectric facilities. Primary emphasis has been on the testing of strobe lights and sound for repelling fish and mercury light for attracting fish. The studies have been conducted at laboratory and field sites throughout the United States. Primary species evaluated to date include chinook, coho and Atlantic salmon, steelhead trout, kokenee, alewife, smelt, yellow perch, walleye, bluegill, several bass, channel catfish, and American shad and gizzard shad. The behavioral devices have been tested alone and in conjunction with other devices (bar racks, drum screens, bypasses and spillways). Results to date indicate that the response of fishes to the test devices is species- and device-dependent. In 1988, the most promising results of behavioral barrier testing to date were obtained with strobe lights at the York Haven Hydroelectric Plant on the Susquehanna River.
Subject Headings: Hydro power | Fish management | Electric power | Electrical equipment | Laboratory tests | Field tests | Mercury (chemical) | Steel
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