Dinoflagellates

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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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Pleurobrachia
Propulsées par huit rangées de peignes, les groseilles de mer déploient deux longs tentacules pour pêcher des crustacés.

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Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.

Diatom species Odontella mobiliensis (Photo : Sophie Marro)

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

Siphonophore Forskalia formosa (Photo : Fabien Lombard)

The research vessel "Marion Dufresne"

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Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.

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The profiling float

Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)

Carte bathymétrique mondiale

Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)

Crab larva (Photo : Fabien Lombard)

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Diatoms - Life in glass houses
Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.

Copepode Sapphirina iris (Photo : Fabien Lombard)

Ciliate (Photo : Fabien Lombard)

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)

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Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)