Animation of the Biosphere by SeaWiFS

Les mésocosmes attirent les poissons ! (© Stareso)

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)

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)

Mollusk (Photo : Fabien Lombard)

Dinoflagellate Ceratium tripos (Photo : Sophie Marro)

Underwater glider (Photo : David Luquet)

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This video describes how to perform the Ludion experiment and explains the physical processes involved.

Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)

Carte bathymétrique de la Mer Méditerranée

Instrumented buoy (Photo : David Luquet)

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

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