Les Diatomées - Bacillaria - mon océan et moi

World ocean currents map

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

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The various components of a profiling float type PROVOR

Annelid worm (Photo : Fabien Lombard)

Foraminifera (Photo : Fabien Lombard)

Underwater glider (Photo : David Luquet)

Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)

Instrumented buoy (Photo : David Luquet)

Ostracodes (Photo : Fabien Lombard)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

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

Dinoflagellate Ceratium carriense var volans (Photo : Sophie Marro)

Dinoflagellate Ceratium paradoxides (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)

Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni

Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)

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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.