A year from the Arctic

Squid larva (Photo : Fabien Lombard)

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The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.

Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

Dinoflagellate Ceratium pentagonum var robustum (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)

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Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)

Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)

Elephant seal equipped with a sensor

Dinoflagellate Ceratium carriense var volans (Photo : Sophie Marro)

Profiling float (Photo : David Luquet)

Copepode Sapphirina iris (Photo : Fabien Lombard)

Mollusk (Photo : Fabien Lombard)

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

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Les Dinoflagellés - Ceratium gravidum
Ceratium gravidum dont en voit parfaitement les mouvements d’un des deux flagelles.

Siphonophore Forskalia formosa (Photo : Fabien Lombard)