Field Experiments Show That Acoustic Pingers Reduce Marine Mammal Bycatch in the California Drift Gill Net Fishery

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Citation: Barlow, J. and Cameron, G.A., 2003. Field Experiments Show That Acoustic Pingers Reduce Marine Mammal Bycatch in the California Drift Gill Net Fishery. Marine Mammal Science, 19, ps 265-283.
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Link: http://www.cetaceanbycatch.org/Papers/barlo03.pdf
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Summary:

Pingers reduce bycatch of California sea lions (Zalophus californianus) and short-beaked common dolphins (Delphinus delphis) in the California drift gillnet fishery for swordfish and sharks. Catch of target fish species (broadbill swordfish, common thresher shark, and shortfin mako shark) and non-target species were not affected by pinger use.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
California Gillnets Acoustic pingers Pinnipeds Reduced bycatch Swordfish & Shark Did not affect catch In the wild
California Gillnets Acoustic pingers Small Cetaceans (maximum length < 7.5 meters) Reduced bycatch Swordfish & Shark Did not affect catch In the wild