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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2012), bathymetrics (2007), orthophotos (2008), historical maps (2010, 2007). Ground truth data sources (2010-2012) : Diving with underwater cameras, direct human observations. Map confidence rated by Ifremer : 84%.

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2012), bathymetrics (2007), orthophotos (2008), historical maps (2010, 2007). Ground truth data sources (2010-2012) : Diving with underwater cameras, direct human observations. Map confidence rated by Ifremer : 81%.

Seabed habitat map (Habitat Directiveclassification system) performed by Andromede Oceanologie 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 : Side scan sonar (2009), orthophotos (2006), historical maps (2010, 2009, 2005). Ground truth data sources: None Map confidence rated by Ifremer : 59%.

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2009), bathymetrics (2012), orthophotos (2006), historical maps (2010, 2009, 2005). Ground truth data sources (2010-2012) : Van Veen grab, underwater cameras, diving. Map confidence rated by Ifremer : 82% (Areas with doubtful outlines and/or classification are mentioned in the "VAL_COMM" field ).

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2012), bathymetrics (2007), orthophotos (2008), historical maps (2010, 2007). Ground truth data sources : none Map confidence rated by Ifremer : 62% (Areas with doubtful outlines and/or classification) are mentioned in the "VAL_COMM" field ).

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), bathymetrics (2007), orthophotos (2006-2008), historical maps (2000-2011). Ground truth data sources (2010-2012) : Divers with underwater cameras, direct human observations. The accuracy of the mapping is heterogeneous according to the methods used (outlines by gps, field data, ...). The field "VAL_COM" specifies the uncertainty (doubtful classification and / or outlines). Overall confidence rated by Ifremer : 84%.

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2008), bathymetrics (2007), orthophotos (2008), historical maps (2009). Ground truth data sources (2012) : Diving with underwater cameras, direct human observations. Map confidence rated by Ifremer : 85%.

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2008), bathymetrics (2007), orthophotos (2008), historical maps (2009). Ground truth data sources : None Map confidence rated by Ifremer : 62% (Areas with doubtful outlines and/or classification 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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), orthophotos (2006-2008), historical maps (2000-2011). Ground truth data sources (2010-2012) : Direct human observations. Map confidence rated by Ifremer : 81%.

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 française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2008), bathymetrics (2007), orthophotos (2008), historical maps (2009). Ground truth data sources (2012) : Diving with underwater cameras (2 points), direct human observations (2 points). Map confidence rated by Ifremer : 82%.