Les Dinoflagellés - Ceratium gravidum

Remote-controlled sailboat

Amphipode crustacean (Photo : Fabien Lombard)

Profiling float (Photo : David Luquet)

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)

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Les Dinoflagellés - Ceratium gravidum
Ceratium gravidum dont en voit parfaitement les mouvements d’un des deux flagelles.

Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)

Mollusk (Photo : Fabien Lombard)

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Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.

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Cténophores - Orgie de couleurs
Vagues de lumière iridescentes, à l'affût de proies, voici les cténophores.

Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)

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The profiling float

Instrumented buoy (Photo : David Luquet)

The research vessel "Marion Dufresne"

Mollusk (Photo : Fabien Lombard)

Vue sous-marine d'un groupe de mésocosmes montrant un plongeur récoltant les pièges à sediment (© Stareso)

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)