Jigsaw Puzzle : Velella - Planktonic Vessels

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Ptéropodes - Mollusques qui nagent
Les papillons des mers construisent de fragiles coquilles. Résisteront-elles à l’acidification des océans?

Instrumented buoy (Photo : David Luquet)

Stickers & Goodies

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Cténophores - Orgie de couleurs
Vagues de lumière iridescentes, à l'affût de proies, voici les cténophores.

Vue sous-marine d'un groupe de mésocosmes (© Stareso)

Scientists collecting seawater samples from the rosette (Photo : Stacy Knapp, Woods Hole Oceanographic Institution)

Acantharia (Photo : Fabien Lombard)

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

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The Glider

Teaching sheets

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

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

Diatom genus Cylindrotheca (Photo : Sophie Marro)

Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)

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

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)

Underwater glider (Photo : David Luquet)

Mollusk (Photo : Fabien Lombard)