Les Dinoflagellés - Ceratium gravidum

Foraminifères (crédit photo : Fabien Lombard)

Foraminifera (Photo : Fabien Lombard)

Tunicata Pyrosoma (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.

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

Instrumented buoy (Photo : Emilie Diamond)

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

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Ptéropodes - Mollusques qui nagent
Les papillons des mers construisent de fragiles coquilles. Résisteront-elles à l’acidification des océans?

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)

Coccolithophore (Photo : Sophie Marro)

Ostracodes (Photo : Fabien Lombard)

Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)

Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)

Acantharia (Photo : Fabien Lombard)

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Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.

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The various components of a profiling float type PROVOR

Instrumented buoy (Photo : David Luquet)

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

Instrumented buoy (Photo : Emilie Diamond)