A year from the Arctic

Instrumented buoy (Photo : Emilie Diamond)

Dinoflagellate Ceratium extensum (Photo : Sophie Marro)

Crab Zoea larva (Photo : Fabien Lombard)

Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)

Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)

Gelatinous plankton salpes and Beroe (Photo : Fabien Lombard)

Dinoflagellate Ceratium paradoxides (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)

LANCER LA VIDEO

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

Acantharia (Photo : Fabien Lombard)

Profiling float (Photo : David Luquet)

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Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)

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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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Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.

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