PigghåFRI – Hvordan unngå problemer med pigghå?

Abstract

This study has mapped the impact of interaction of spiny dogfish (Squalus acanthias) with aquaculture installations in Norway and studied the behavior of spiny dogfish, in laboratory and field studies, in response to sensory cues for possible development of an anti-shark measure for fish farms. Electromagnetic pulse and smell of dead conspecific (skin extract) induce aversive response without inducing chronic stress in spiny dogfish; orca sound has no effect as repellent against spiny dogfish behaviour. This suggests a promising approach in development of technology based on electromagnetic pulse stimulation and aversive chemical cues to keep spiny dogfish away from fish farms.

PigghåFRI – Hvordan unngå problemer med pigghå?