Quizz marine phytoplankton

Cténaires : Beroe ovata (crédit photo : Fabien Lombard

Ctenaria Beroe ovata (Photo : Fabien Lombard)

Underwater glider (Photo : David Luquet)

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)

Ciliate (Photo : Fabien Lombard)

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

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Animation of the biosphere obtained from the ocean color sensor SeaWiFS

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Les Dinoflagellés - Ceratium hexacanthum
chaîne de Ceratium hexacanthum qui restent les uns à la suites des autres au fur et à mesure des divisions.
Le mouvement des flagelles est bien visible.

The research vessel "Marion Dufresne"

Squid larva (Photo : Fabien Lombard)

Diatom genus Cylindrotheca (Photo : Sophie Marro)

Crab larva (Photo : Fabien Lombard)

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

Annelid worm (Photo : Fabien Lombard)

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The Glider

Dinoflagellate Ceratium extensum (Photo : Sophie Marro)

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)

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)

Mollusk (Photo : Fabien Lombard)