Seabed habitat map (EUNIS habitat classification system) performed by In Vivo Environnement within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Orthophotos 2008, historic habitat maps (2011, 2008), bathymetric datas interpolation (2001). Ground truth data sources : Van Veen grab (90 points), beam trawl (31), hand corer (8), Diver with underwater cameras (6). Map confidence rated by Ifremer : 88% (Areas with doubtful outlines are mentioned in the "VAL_COMM" field).

Seabed habitat map (Habitats directive classification system) performed by In Vivo Environnement within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Orthophotos 2008, historic habitat map (2008), bathymetric datas interpolation (2001). Ground truth data sources : Van Veen grab (1 point), hand corer (1), Diver with underwater cameras (2). Map confidence rated by Ifremer : 84%.