Les Diatomées - Bacillaria - mon océan et moi

Remote-controlled sailboat

Squid larva (Photo : Fabien Lombard)

Teaching sheets

Les mésocosmes déployés dans la rade de Villefranche (© L. Maugendre, LOV)

Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)

Jellyfish Aequorea aequorea (Photo : Fabien Lombard)

Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)

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

Préparation et mise à l'eau des mésocosmes sur le ponton de l'observatoire océanologique de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)

Copepode Sapphirina iris (Photo : Fabien Lombard)

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The profiling float

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The profiling float

Mollusk (Photo : Fabien Lombard)

Préparation des mésocosmes sur le ponton du laboratoire d'Océanographie de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)

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

Instrumented buoy (Photo : David Luquet)