Killer whale, Orcinus orca, sound repel white whales, Delphinapterus leucas.

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Citation: Fish, J.F. and Vania, J.S., 1971. Killer whale, Orcinus orca, sound repel white whales, Delphinapterus leucas.. Fishery Bulletin, 69(3), ps 531-535.
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Summary:

For two weeks, transmission of predator sounds (killer whales) excluded beluga whales (Delphinapterus leucas) from preying on salmon smolts in Alaska??˙s Kvichak River.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
Alaska   Animal predation sounds Large Cetaceans (maximum length > 7.5 meters) Excluded whales Salmon In the wild