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Research and development
Acoustic repellents « Pingers » and reflectors for netters and pelagic trawlers (LICADO project)
The pinger is an acoustic deterrent device designed to reduce the accidental capture of cetaceans (here, common dolphins). It emits a sound signal that is effective in repelling these species. The pinger is activated by contact with the water, emitting a series of ultrasounds that can be heard by the mammals’ auditory system without causing […]
Research and development
“Pingers” acoustic repellents for gillnetters (PIFIL project)
The pinger is an acoustic deterrent device designed to reduce the bycatch of cetaceans (ex : common dolphins). It emits an effective sound signal to repel these species. The pinger is activated on contact with the water by emitting a series of ultrasounds that are perceptible to the auditory system of the mammals without causing […]
Research and development
Acoustic reflector
Acoustic reflectors are considered passive repellents in that they do not emit sound into the marine environment, unlike pingers. These reflectors can be ropes or other devices made of metallic materials, which are placed in the middle of the net, between the bottom and float lines, and increase the reflectivity of the net so that […]