Compensation measures
Improvement of the tranquility of marine mammals
Objectives and methodology
The objective of this measure is to strengthen the peace and quiet of marine mammals in the Normandy Breton Gulf during the construction phase of the wind farm off the coast of Saint-Brieuc Bay.
Several meetings were organized with state services and marine mammal experts during 2019 and early 2020.
The species targeted by this awareness program are the main species of cetaceans and pinnipeds frequenting the Normandy Breton Gulf, namely the bottlenose dolphin, the common dolphin, the Risso's dolphin, the porpoise, the calf seal, and the seal. gray.
An awareness zone, active from March 2021 to October 2023, supported targeted awareness actions.
The actions aim to improve the image and knowledge of the behavior and lifestyle of marine mammals to better protect them. The information disseminated also aims to raise awareness among sea users of the respectful approach to marine mammals in the event of a chance encounter.
Several awareness tools are being developed:
Creation of a booklet whose content was discussed with State services and the experts previously cited.
Numerous relays along the coast have been identified for the implementation of this measure.
Location of actions

Figure SEQ Figure \* ARABIS 2: Marine mammal tranquility awareness zone
If the east of the bay is the subject of active awareness raising, notably by Al Lark, the west of the bay is less subject to awareness raising around marine mammals and is therefore mainly targeted forAiles Marines' actions.Ailes Marines.
Schedule and Status
Measure implemented
AU-IOTA: The measure is implemented throughout the life of the shipyard.
This measure began in spring 2021 and must end with the transition to the operational phase, i.e. in spring 2024. Please note, however, that a complete distribution of awareness/information booklets will be carried out in the territory in 2024.
2020
- In the pre-construction phase 100%
2022
- In construction phase 100%
2024, 2025, 2026, 2034, 2044
- In the operating phase 33%