First attempt to understand the effect of pingers on static fishing gear in Bulgarian Black Sea coast

Abstract

Acoustic deterrent devices (pingers) were used on static fishing gear called dalyans in an attempt to reduce bycatch of small cetaceans and/or to reduce depredation in the Bulgarian Black Sea coast. Between April and July 2015 dalyans were equipped with harbour porpoise pingers in the northern part of the coast. Observations were carried out on regular bases on active (with pingers) and on control dalyans (without pingers). The preliminary results were positive in reducing damages on fishing gear.

Keywords

• pingers
• damages
• fisheries
• dolphins
• Black Sea