Washington StateArticle: Experimental testing of acoustic alarms (pingers) to reduce bycatch of harbor porpoise, Phocoena phocoena, in the state of WashingtonTarget catch: Salmon & sturgeonStudy Type: Field study in the wildEffect on target catch: Did not affect target catchEffect on bycatch species: Did not reduce seal bycatchBycatch species: PinnipedsFishing Gear: GillnetsReduction technique: Acoustic deterrent devices