Press release

Implementation of unique fish and shellfish monitoring measures in offshore wind farms

Ailes Marines a 100% subsidiary of the company Iberdrola, supports France Energies Marines in setting up monitoring of fishery resources within the offshore wind farm off the bay of Saint-Brieuc. 



How do fish and shellfish frequent offshore wind farms?

From 2022, 16 acoustic telemetry devices allowing innovative monitoring of fish have been set up within the park.
This approach is part of the European research projects FISH INTEL and FISHOWF , and the monitoring measures undertaken by Ailes Marines , beyond the regulatory requirements linked to the administrative authorizations granted for the construction and operation of the park.

Unprecedented research into offshore wind farms

France Energies Marines and its partners Ifremer , the National Museum of Natural History , have implanted or fixed acoustic markers (small transmitters) on species endemic to the area ( brown and curly ray, spotted emisole, small and large dogfish porbeagle and Spider crab ). These markers emit acoustic signals at regular intervals which are passively detected by the network of 16 fixed receivers, installed within the offshore wind farm. The signal is identified and recorded by a receiver when the fish or crustacean passes nearby of the device . The latter transmits information from Saint-Brieuc, on the use of the habitat and the fidelity to the site of the marked individuals, but also on their movements between the different sites.

Bass (wolves) and blue sharks tracked in the Mediterranean

A total of 163 individuals have been tagged as part of the FISHOWF since the program was established last spring. But this monitoring is also based on the hundreds of individuals of species of commercial importance for the region, which were marked as part of the European FISH INTEL ( sea bass, pollack, lobster and bluefin tuna ).

This data will be shared with key project stakeholders, local and regional fisheries committees as part of their ecosystem-based fisheries management . The data collected will also make it possible to identify important habitats in these high-stakes areas and to better assess the potential effects of parks on fish and shellfish populations.

The Ceres 3 vessel will collect data from the 16 acoustic telemetry devices installed within the Saint-Brieuc wind farm, between mid-January and mid-February.

All information concerning the Saint-Brieuc offshore wind farm project developed by the company Ailes Marines is available on the website

Ailes Marines news on twitter @AilesMarines


About Ailes Marines

Winner of a national call for projects with the Saint-Brieuc Bay offshore wind farm project, AILES MARINES is in charge of the development, construction, installation and operation of the offshore wind farm. It is a simplified joint stock company (SAS), 100% owned by IBERDROLA. The key figures of the Saint-Brieuc Bay offshore wind project:

  • 75 km2 of area
  • 62 Siemens Gamesa SG 8.0-167 DD 8 MW wind turbines
  • 496 MW of installed power
  • 1,820 GWh/year of production, i.e. the annual electricity consumption of 835,000 inhabitants (heating included)

All Press releases

Jul 02 2024

The Saint-Brieuc offshore wind farm is once again accessible to maritime and fishing activities

The resumption of maritime and fishing activities in the Saint-Brieuc offshore wind farm has been effective since July 1, 2024.

May 28 2024

Iberdrola commissions the second French offshore wind farm and the first in Brittany

Iberdrola, through its subsidiary Ailes Marines , today announces the full commissioning of the second French offshore wind farm and the first in Brittany. At this...
Apr 25 2024

IBReizh program: Ailes Marines subsidiary of Iberdrola announces 3 selected innovative projects

In October 2023, as part of the IBReizh program, Ailes Marines , a subsidiary of Iberdrola, launched in partnership with the Pôle Mer Bretagne Atlantique a Call for...
Dec 18 2023

All of the wind turbines at the Saint-Brieuc offshore wind farm are installed

The installation phase of the wind turbines in the Saint-Brieuc park is complete. The Brave Tern jack-up vessel from the Norwegian company Fred Olsen...
Jul 06 2023

The second French offshore wind farm produces its first green megawatt hours in Brittany

Ailes Marines , a company 100% owned by the Iberdrola group, today announces the production of the first megawatt hours from the Saint-Brieuc offshore wind farm....
May 12 2023

Ailes Marines , a subsidiary of Iberdrola, has installed Brittany's first offshore wind turbine.

The installation of the first of the 62 wind turbines which will equip the Saint-Brieuc wind farm was carried out on May 9 by the contractor of Ailes Marines , the company Siemens...
Mar 27 2023

Resumption of drilling and installation work on the wind farm in Saint-Brieuc Bay.

Ailes Marines announces today the resumption of drilling and installation work on the wind farm in the bay of Saint-Brieuc. These operations will mobilize for...
Mar 03 2023

Pioneering environmental studies, recognized by the international scientific community

PLos One and Limnology & Oceanography Methods, two international scientific publications, have validated the protocols for measuring the effects of noise on...
Mar 02 2023

Ailes Marines , a subsidiary of Iberdrola, inaugurates the temporary technical base of the Saint-Brieuc offshore wind farm on the port of Saint-Malo

The temporary technical base of the Saint-Brieuc offshore wind farm was inaugurated on Friday February 24, 2023 by Daniel Cueff, Vice-President of the Region...
Dec 20 2022

Signature of a partnership to study the feasibility of a sustainable and integrated aquaculture farm within the Saint-Brieuc offshore wind farm.

Ailes Marines , a company 100% owned by the Iberdrola group, and the Northern Brittany Regional Shellfish Farming Committee (CRCBN) today signed a...