Dinoflagellate Ceratium tripos (Photo : Sophie Marro)
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)
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)
Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Les mésocosmes attirent les poissons ! (© Stareso)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Underwater glider (Photo : David Luquet)
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Siphonophores - The longest animals on the planet
Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Prélèvements d'eau des mésocosmes pour analyses, lors de l'expérience menée en Corse en juin/juillet 2012 (© A. Ree, PML)
Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Ptéropodes - Mollusques qui nagent
Les papillons des mers construisent de fragiles coquilles. Résisteront-elles à l’acidification des océans?