Find tools to improve interactions between fisheries and sensitive habitats and species

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Research and development DOLPHINFREE project DOLPHINFREE’s ambition is to propose prototypes : – an acoustic device emitting a signal that can be understood and interpreted by dolphins, to alert them to the presence of the net and the associated risk of mortality (dolphins understand the mortality of their fellow dolphins, according to scientific studies). With a range of 500m, a […]
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 […] 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 […]