As the offshore radar can only be functional when the wind turbines are energized, monitoring by terrestrial radar is set up before and during construction.
Specific monitoring will be implemented to assess micro/macro avoidance as well as migratory flows within the park during the operational phase (see avifauna monitoring sheet by maritime radar) The main objectives of this monitoring of the avifauna by terrestrial radar are to evaluate the potential changes in the behavior of seabirds due to the presence of the park and to measure the migratory flow in order to know more about the importance of the passages in the bay of Saint-Brieuc.
The objective of the measurement is to improve knowledge of the phenomenon of dispersal of adults and their chicks at sea and to verify whether this dispersal is carried out in the direction of the wind farm off the coast of Saint-Brieuc Bay.
The scientific protocol establishing the technical modalities of field actions was established jointly between Ailes Marines and local stakeholders (Bretagne Vivante and the Syndicat Mixte Grand Site Cap d'Erquy Cap Fréhel).
The measure concerns the commitments made by Ailes Marines when responding to call for tenders n°2011/S 126-208873 organized by the French State to develop a wind project off the coast of Saint-Brieuc and those of administrative authorizations for the offshore wind project, obtained in December 2017.
Tourism being the second sector of economic activity in the Côtes-d'Armor department, the question of integrating the offshore wind farm into the department's tourism offering has been raised. Ailes Marines is committed to promoting the attractiveness of the department and the integration of the wind project into the region's tourist offering.
This support measure concerns the testing of a system to avoid bird collisions with the blades of wind turbines in operation. The system is composed of a network of cameras, which detect the trajectories of different categories of birds, connected to a sound scaring system, which is activated once a bird enters a risky perimeter around the rotor of the wind turbine. Different systems are available on the market and operational for several years on onshore wind farms. Marinated versions adapted to offshore sea conditions are currently being developed, however they do not benefit from as much feedback as their land-based counterparts. This is why the choice of system was not fixed in the prefectural authorization orders.
AU-IOTA prescribes that prior to starting work on the foundations, the project owner carries out modeling of the dispersion of suspended matter and assesses their impacts on the fishery resource.
The project owner presents for opinion to the management and monitoring committee:
This support measure focuses on assessing the impact of noise on various emblematic species of the fishery resource of interest in the Bay of Saint-Brieuc, which are: scallops, clams, and cuttlefish.
Indeed, knowledge of the impact of sounds 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 (like the lobster) and to subject certain species to the sounds of beating and drilling of stakes of various intensities (to simulate a distance gradient between the individual and the noise source). This completely pioneering study brings together a college of international scientists at the forefront of research in underwater bioacoustics (CNRS, LEMAR, MNHN, BeBEST and Polytechnic University of Catalonia) as well as the contribution of CDPMEM 22.
