Effects of Sounds from Seismic Air Guns on Fish Behaviour and Catch Rates

Scientific studies on the effects of sounds from seismic air guns on fish behaviour and commercial fisheries are reviewed. The results of these studies provide clear indications that the fish reacted to the sound of the air guns. There are species-specific differences in the responses, which may lead to both increased and reduced catch rates depending on the type of fishing gear and fishing ground, and on the hearing ability and behaviour of the exposed fish species.