Quizz observation of the oceans and seas

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)

Crab Zoea larva (Photo : Fabien Lombard)

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

Les mésocosmes attirent les poissons ! (© Stareso)

Appendicularia Oikopleura dioica (Photo : Fabien Lombard)

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

Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)

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

Vue sous-marine d'un groupe de mésocosmes (© Stareso)

Larva of decapod crustacean (Photo : Fabien Lombard)

Tunicata Pyrosoma (Photo : Fabien Lombard)

Instrumented buoy (Photo : David Luquet)

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)

Ostracodes (Photo : Fabien Lombard)

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Diatoms - Life in glass houses
Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.

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Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)

Carte de la camapagne du navire oceanographique James COOK

Le trajet du bateau sur fond couleur de la mer.

Instrumented buoy (Photo : David Luquet)