Puzzle Phytoplankton : Ceratium arietinum

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)

Siphonophore Forskalia formosa (Photo : Fabien Lombard)

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Animation of the biosphere obtained from the ocean color sensor SeaWiFS

Prélèvements d'eau des mésocosmes pour analyses, lors de l'expérience menée en Corse en juin/juillet 2012 (© A. Ree, PML)

Dinoflagellate Ceratium tripos (Photo : Sophie Marro)

Large rosette sampler used in the "World Ocean Circulation Experiment". This rosette has 36 10-liter Niskin bottles, an acoustic pinger (lower left), an "LADCP" current profiler (yellow long tube at the center), a CTD (horizontal instrument at the bottom), and transmissometer (yellow short tube at the center). (Photo : L. Talley)

The research vessel "Marion Dufresne"

Instrumented buoy (Photo : David Luquet)

Jellyfish Aequorea aequorea (Photo : Fabien Lombard)

Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni

Diatom species Odontella mobiliensis (Photo : Sophie Marro)

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Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.

Carte bathymétrique de la Mer Méditerranée

Instrumented buoy (Photo : David Luquet)

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

Squid larva (Photo : Fabien Lombard)