Surface chlorophyll a concentration in the Mediterranean Sea.
The research vessel "James COOK"
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)
Diatom genus Rhizosolenia (Photo : Sophie Marro)
Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)
Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)
Instrumented buoy (Photo : David Luquet)
Underwater glider (Photo : David Luquet)
Ostracodes (Photo : Fabien Lombard)
Underwater glider (Photo : David Luquet)
Mollusk (Photo : Fabien Lombard)
Krill (Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Annelid worm (Photo : Fabien Lombard)
