Sea lion/steelhead conflict at the Ballad Locks, Seattle. National Marine Fisheries Service and Washington Department of Wildlife, Seattle, Washington.

Predator sounds (killer whales) did not deter sea lion predation on a steelhead trout fishery in Washington.
Field Studies:

Location	Fishing gear	Reduction technique	Bycatch species	Effect on bycatch species	Catch	Effect on target catch	Type
Washington State		Animal predation sounds	Pinnipeds	Did not deter predation	Trout		In the wild