Cerema contributed to the early-stage knowledge base and public-debate documentation for the planned Oléron 1 offshore wind project area (facade Sud-Atlantique). The project website’s “Études sur l’environnement et les usages” section lists a Cerema deliverable titled “Rapport d'étude sur la pêche professionnelle en Sud Atlantique 2021 (Cerema)”, indicating Cerema’s role in preparing an environmental and socio-economic baseline study focused on professional fishing activities in the South Atlantic zone relevant to the Oléron 1 site. This work supported the project’s development-phase understanding of existing marine uses and potential interactions between offshore wind development and fisheries. As part of the broader set of studies prepared for the CNDP-led public debate and subsequent planning steps, the Cerema report would have informed stakeholder discussions by documenting fishing practices, spatial patterns, and constraints to be considered in site selection, mitigation approaches, and future impact assessment. No contract value, contracting authority, or detailed scope breakdown is stated on the page beyond the identification of Cerema as the authoring organisation of the 2021 professional fishing study report for the Sud-Atlantique debate materials associated with Oléron 1.