glider

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Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)

Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)

Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)

Annelid worm (Photo : Fabien Lombard)

Surface chlorophyll a concentration in the global ocean.

Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)

Elephant seal equipped with a sensor

Mollusk (Photo : Fabien Lombard)

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The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.

Instrumented buoy (Photo : Emilie Diamond)

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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.

Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)

World ocean currents map

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Illustration in synthesized images of the seasons of the ocean: a year from the Antarctic - Animation Clement Fontana

Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.

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The various components of a profiling float type PROVOR

Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)

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)