Washington StateArticle: Results of the 1986-87 California sea lion-steelhead trout predation control program at the Hiram M. Chittenden Locks. NWAFC Processed Report 88-30, Alaska Fisheries Science Center, NMFS, NOAA, Seattle, Washington.Target catch: TroutStudy Type: Field study in the wildEffect on bycatch species: Worked temporarily, then habituation occurredBycatch species: PinnipedsReduction technique: Acoustic deterrent devices