Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
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 teresgyr (Photo : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Ciliate (Photo : Fabien Lombard)
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
Diatom genus Coscinodiscus (Photo : Sophie Marro)
Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)
Dinoflagellate Ceratium furca (Photo : Sophie Marro)
Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.
Les Diatomées - Bacillaria
Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
Larva of decapod crustacean (Photo : Fabien Lombard)
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
Les Dinoflagellés - Ceratium gravidum
Ceratium gravidum dont en voit parfaitement les mouvements d’un des deux flagelles.
