Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Mollusk (Photo : Fabien Lombard)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Instrumented buoy (Photo : Emilie Diamond)
Annelid worm (Photo : Fabien Lombard)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Jellyfish Pelagia noctiluca (Photo : Fabien Lombard)
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
Ciliate (Photo : Fabien Lombard)
Les Dinoflagellés - Ceratium hexacanthum
chaîne de Ceratium hexacanthum qui restent les uns à la suites des autres au fur et à mesure des divisions.
Le mouvement des flagelles est bien visible.
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 arietinum var arietinum (Photo : Sophie Marro)
Diatom species Odontella mobiliensis (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
