Reducing bycatch: can acoustic pingers keep Hector's dolphins out of fishing nets?

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Citation: Stone, G., Kraus, S., Hutt, A., Martin, S., Yoshinaga, A. & Joy, L., 1997. Reducing bycatch: can acoustic pingers keep Hector's dolphins out of fishing nets?. Marine Technology Society Journal, 31, ps 3-7.
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Summary:

Hector??˙s dolphins (Cephalorhynchus hectori) avoid areas with gillnets when pingers are used in Akaroa Harbour, New Zealand.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
New Zealand Gillnets Acoustic pingers Small Cetaceans (maximum length < 7.5 meters) Dolphins avoided area Trout In the wild