Reactions of harbor porpoises Phocoena phocoena and herring Clupea harengus to acoustic alarms

Harbor porpoise (Phocoena phocoena) avoided an area around a non-lethal, experimental gillnet equipped with a pinger in British Columbia, Canada. In a separate experiment with gillnets in the Baltic Sea, pingers did not affect the catch of targeted herring (Clupea harengus).
Field Studies:

Location	Fishing gear	Reduction technique	Bycatch species	Effect on bycatch species	Catch	Effect on target catch	Type
Canada	Gillnets	Acoustic pingers	Small Cetaceans (maximum length < 7.5 meters)	Harbor porpoise avoided area	Herring		In the wild