Pingers as deterrents of bottlenose dolphins interacting with trammel nets

Authors: 
Gazo, M., Gonzalvo, ,J. and A. Aguilar
Year: 
2008
Journal/Publisher Name: 
Fisheries Research
Volume/Issue #: 
92
Page #s: 
70-75
The experiment tested the effects of Aquamark 100 pingers on the depredation rate of bottlenose dolphins on trammel nets. Results showed nets equipped with pingers had 87% fewer holes (attributed to damage by dolphins) than nets without pingers.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
Mediterranean, Balearic Islands Gillnets Acoustic pingers Small Cetaceans (maximum length < 7.5 meters) Reduced bottlenose dolphin (Tursiops truncatus) depredation Red mullet Increased target catch and reduced dolphin damage to the catch In the wild