Seabed habitat map (EUNIS classification system) performed by Andromede Oceanologie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence fran├ºaise pour la biodiversit├®, AFB). Digital data sources : Side scan sonar (2010), bathymetrics (2007), orthophotos (2008), historical maps (2003). Ground truth data sources (2009-2011) : Divers with underwater cameras, direct human observations. Map confidence rated by Ifremer : 87% (Areas with doubtful outlines are mentioned in the "VAL_COMM" field ).

Seabed habitat map (Habitat Directive classification system) performed by Andromede Oceanologie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence fran├ºaise pour la biodiversit├®, AFB). Digital data sources : Side scan sonar (2010), orthophotos (2008), historical maps (2003). Ground truth data sources (2011) : Diving with underwater cameras. Map confidence rated by Ifremer : 78%.