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.