Use of electrical barriers to deter movement of round goby

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Edited by:
Charles C. Coutant



An electrical barrier was chosen as a possible means to deter movement of round goby Neogobius melanostomus. Feasibility studies in a 2.1-m donut-shaped tank determined the electrical parameters necessary to inhibit round goby from crossing the 1-m stretch of the benthic, electrical barrier. Increasing electrical pulse duration and voltage increased effectiveness of the barrier in deterring round goby movement through the barrier. Differences in activity of round goby during daytime and nocturnal tests did not change the effectiveness of the barrier. In field verification studies, an electrical barrier was placed between two blocking nets in the Shiawassee River, Michigan. The barrier consisted of a 6-m wide canvas on which were laid four cables carrying the electrical current. Seven experiments were conducted, wherein 25 latex paint-marked round goby were introduced upstream of the electrical barrier and recovered 24 h later upstream, on, and downstream of the barrier. During control studies, round goby moved across the barrier within 20 min from release upstream. With the barrier on and using the prescribed electrical settings shown to inhibit passage in the laboratory, the only marked round goby found below the barrier were dead. At reduced pulse durations, a few round goby (mean one/test) were found alive, but debilitated, below the barrier. The electrical barrier could be incorporated as part of a program in reducing movement of adult round goby through artificial connections between watersheds.

Additional publication details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Use of electrical barriers to deter movement of round goby
Year Published:
American Fisheries Society
Publisher location:
Bethesda, MD
Contributing office(s):
Great Lakes Science Center
12 p.
Larger Work Type:
Larger Work Subtype:
Conference publication
Larger Work Title:
Behavioral technologies for fish guidance: Proceedings of the American Fisheries Society Symposium 26
First page:
Last page:
Conference Title:
Behavioral Technologies for Fish Guidance: American Fisheries Society Symposium 26
Conference Location:
Charlotte, NC
Conference Date:
August 30-31, 1999