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Accompanying measures

Study of the impact of noise on the fisheries resource

Objectives and methodology

This accompanying measure focuses on assessing the impact of noise on various species emblematic of the fisheries resource of interest in the Bay of Saint-Brieuc: scallop, prairie and cuttlefish. Knowledge of the impact of sound on invertebrates and crustaceans at different stages of their development is still very incomplete.

This study in a controlled environment (laboratory) but also natural for the case of the scallop, aims to better understand the effects of noise on these organisms (such as lobster) and to subject certain species to pile driving and drilling sounds of various intensities (to simulate a gradient in distance between the individual and the noise source). This pioneering study brought together a college of international scientists at the forefront of underwater bioacoustics research (CNRS, LEMAR, MNHN, BeBEST and the Polytechnic University of Catalonia) and the contribution of CDPMEM 22.

This study is divided into two subparts, one dealing with cuttlefish (SONSETC project led by Michel André) and the second with the other species studied (IMPAIC project led by Laurent Chauvaud).

These two studies will be the subject of several scientific publications in international journals. All the results will be presented publicly once the scientific articles have been submitted. All the preliminary results have been presented to the fisheries committees as well as to the State services.

Location of actions

accomp-ressource-halieutique

Illustration of an experimental device allowing the exposure of individuals to a known sound environment.

Planning and Status

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Measure put in place

  • IMPAIC study 85% 85%

The IMPAIC study started in December 2018 and will be completed by the end of 2020. Three preliminary oral restitutions have been organised, in the presence of the State Services and representatives of the professional fishing industry, between 2019 and 2020.

  • SONSETC study 100% 100%

The SONSETC study began in March 2019 and was completed in February 2020. An oral presentation was held in May 2020 before the State Services and representatives of the professional fishing industry.

All accompanying measures

Follow-up actions

Reduction measures

Compensation measures