A year from the Arctic

the seasonal evolution of the chlorophyll a concentration

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

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)

Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Instrumented buoy (Photo : Emilie Diamond)

Underwater glider (Photo : David Luquet)

Crab larva (Photo : Fabien Lombard)

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Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.

Annelid worm (Photo : Fabien Lombard)

Jellyfish Pelagia noctiluca (Photo : Fabien Lombard)

Dinoflagellate Ceratium praelongum (Photo : Sophie Marro)

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

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Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.