A year from the Antarctic

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

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

Squid larva (Photo : Fabien Lombard)

Amphipode crustacean (Photo : Fabien Lombard)

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

Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)

Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)

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

Vue sous-marine d'un groupe de mésocosmes montrant un plongeur récoltant les pièges à sediment (© Stareso)

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)

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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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Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.

Dinoflagellate Ceratium extensum (Photo : Sophie Marro)

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

Radiolarians (Photo : Fabien Lombard)

Dinoflagellate Ceratium furca (Photo : Sophie Marro)

Coccolithophore (Photo : Sophie Marro)

Instrumented buoy (Photo : David Luquet)