Quizz the ocean seasons

bouée instrumentée - Photo : David Luquet

Instrumented buoy (Photo : David Luquet)

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

Instrumented buoy (Photo : David Luquet)

Profiling float (Photo : David Luquet)

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The profiling float

Siphonophores (Photo : Fabien Lombard)

The research vessel "Marion Dufresne"

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

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Salpes - La vie enchaînée
Bien que d’apparence primitive, les salpes sont de proches ancêtres des poissons. Lorsque les algues abondent, les salpes prolifèrent en de longues chaînes d’individus clonés.

Dinoflagellate Ceratium furca (Photo : Sophie Marro)

Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Surface chlorophyll a concentration in the global ocean.

Crab larva (Photo : Fabien Lombard)

Instrumented buoy (Photo : Emilie Diamond)

Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)

Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA

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

Jellyfish Pelagia noctilica (Photo : Fabien Lombard)