Stocks (abundance and biomass) of the slipper limpet Crepidula fornicata Linnaeus, 1758 in the Pertuis Charentais shallows were estimated in 2011 and mapped (Sauriau et al., 2011). The influence of the estimate includes the Pertuis Breton, the eastern part Pertuis Antioch Fouras peninsula and the Bay of Marennes-Oléron where the latter earlier estimates are available. Contours and surface areas of the crepidula were previously determined by acoustic imaging performed aboard the VO/Haliotis in 2008 and 2009, interpreted and validated by spot sampling in 2009 (Curti, 2009). Sampling stocks of 2011 is based on a stratified random sample of 40 banks with a proportional distribution of sampling of 200 stations between banks. The listing for each crepidula bank stocks (abundance in millions, biomass in tonnes) both living and dead, these shells may provide support to potential new colonization.

Toxic discharges from urban and industrial sources per hydrographic zone of the Loire Bretagne basin. This data was collected as part of the initial assessment of the MSFD with the Water Agency of Loire-Bretagne. Referent expert AAMP: Aurélie Blanck.

Discharges of nutrients (nitrogen, phosphorus and organic matter) and toxic releases (MI) per hydrographic zone from industries and communities of the Adour-Garonne basin. This data was collected as part of the initial assessment of the MSFD with the Water Agency of Adour-Garonne. Referent expert AAMP: Aurélie Blanck.

Excess nitrogen from agricultural drainage by hydrographic zone in the Loire-Bretagne basin. This data was collected as part of the "initial state" phase of DCSSM with the Loire-Bretagne Water Agency. Referent expert AAMP : Aurélie Blanck.

Excess nitrogen from agricultural drainage by hydrographic zone in the Adour-Garonne basin. This data was collected as part of the "initial state" phase of DCSSM with the Adour-Garonne Water Agency. Referent expert AAMP : Aurélie Blanck. Partial description of the fields: "kgN_ha_an" : nitrogen surplus (kgN / ha / year)

Discharges of nitrogen, phosphorus and organic matter per hydrographic zone from industries and communities in the Loire-Brittany basin. This data was collected as part of the initial assessment of the MSFD with the Water Agency of Loire-Bretagne. Referent expert AAMP: Aurélie Blanck.

Counting beached marine turtles on the Channel- Atlantic coast, identifying the causes of mortality in dead beached individuals, rehabilitating and releasing live beached individuals into the wild.

Aggregates map at 1 : 250 000 of the French metropolitan EEZ produced in the work-package 7 (marine minerals) of the European project EMODnet Geology. This version of the dataset corresponds to the phase IV of the project.

3D seasonal temperature range (in ° C) obtained by objective analysis (interpolation) of the raw data in situ, at a depth of 5m. Within the Bay of Biscay Challenge and the programme of the Operational Coastal Oceanographic Centre Prévimer, the services of SISMER DYNECO-PHYSED of IFREMER have built a joint hydrological database of the Bay of Biscay, from CTD measurements, Bouteilles, XBT / MBT and Profileurs from multiple global data centres to achieve a climatological atlas of the region for temperature and salinity.

The analysis focuses on monitoring the ecological status of the coastal and transitional waters of the Western Channel and the Bay of Biscay. The ecological status of a coastal water body within the meaning of the European Water Framework Directive (WFD) is determined by the biological state, physicochemical state and hydromorphological state of the water mass, water. The statement is determined according to the rules described in the decree of 25 January 2010.