Puzzle Zooplankton : Medusa

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Animation of the biosphere obtained from the ocean color sensor SeaWiFS

Diatom genus Chaetoceros (Photo : Sophie Marro)

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Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.

Dinoflagellate Ceratium furca (Photo : Sophie Marro)

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Underwater glider

Profiling float (Photo : David Luquet)

Underwater glider (Photo : David Luquet)

Dinoflagellate Ceratium macroceros var macroceros (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)

Ciliate (Photo : Fabien Lombard)

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)

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

Diatom species Odontella mobiliensis (Photo : Sophie Marro)

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

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Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)

Jellyfish Aequorea aequorea (Photo : Fabien Lombard)

Prélèvements d'eau des mésocosmes pour analyses, lors de l'expérience menée en Corse en juin/juillet 2012 (© A. Ree, PML)

Jellyfish Pelagia noctilica (Photo : Fabien Lombard)