Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)
Siphonophore (Photo : Fabien Lombard)
Underwater glider (Photo : David Luquet)
Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)
Préparation et mise à l'eau des mésocosmes sur le ponton de l'observatoire océanologique de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Instrumented buoy (Photo : David Luquet)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
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)
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
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.
Squid larva (Photo : Fabien Lombard)
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)
Crab Zoea larva (Photo : Fabien Lombard)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
