Polygones définis pour la répartition des points d'échantillonnage des campagnes Medits. MEDITS, 2007. International bottom trawl survey in the Mediterranean (Medits). Instruction manual. Version 5. Ifremer, Nantes. http://archimer.ifremer.fr/doc/00002/11321/. 60 p.

Polygones définis pour la répartition des points d'échantillonnage des campagnes Evhoe dans le golfe de Gascogne et en mer Celtique

mineral Suspended Particulate Matter (g.m-3)

attenuation coefficient (KPAR, m-1)

Three environmental parameters were measured in situ during the REISE2 survey in April 1995. Temperature and salinity were measured using a probe. Fluorescence (mean for the water column) was measured using a fluorometer. This survey gives illustration of spring conditions.

Sea Surface Temperature (SST, in °C)

Depth is here bathymetry plus mean sea level. It adds the bathymetry raster to that of mean sea level. Depth is more relevant than bathymetry alone for ecological point of view. Used as layer for habitat

The English Channel is a biogeographical transition zone, situated between warm temperate and boreal marine province. This status enables the early detection of trends in the oceanic climate regime between two provinces. Mean SST maps for February (coldest month of the year) and August (warmest month of the year), from 1986 to 2006, were produced.

The English Channel is a biogeographical transition zone, situated between warm temperate and boreal marine province. This status enables the early detection of trends in the oceanic climate regime between two provinces. Mean SST maps for February (coldest month of the year) and August (warmest month of the year), from 1986 to 2006, were produced.

chlorophyll a concentration (in g.m-3)