Les Diatomées - Bacillaria - mon océan et moi

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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 tripos (Photo : Sophie Marro)

Posters

Profiling float (Photo : David Luquet)

Instrumented buoy (Photo : David Luquet)

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

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The profiling float

Instrumented buoy (Photo : Emilie Diamond)

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

Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)

Mollusk (Photo : Fabien Lombard)

Diatom genus Hemiaulus (Photo : Sophie Marro)

Profiling float (Photo : David Luquet)

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Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.

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

Instrumented buoy (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)

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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.