Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Profiling float (Photo : David Luquet)
Ostracodes (Photo : Fabien Lombard)
Surface chlorophyll a concentration in the Mediterranean Sea.
Les Diatomées - Bacillaria Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-JacquesPangrazi)