Siphonophore Forskalia formosa (Photo : Fabien Lombard)
Jellyfish Pelagia noctiluca (Photo : Fabien Lombard)
Colony of salps Salpa fusiformis (Photo : Fabien Lombard)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
Crab Zoea larva (Photo : Fabien Lombard)
Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)
Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.
Appendicularia Oikopleura dioica (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
Larva of decapod crustacean (Photo : Fabien Lombard)
Profiling float (Photo : David Luquet)
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)
Siphonophores Forskalia formosa (Photo : Fabien Lombard)
Ctenaria Beroe ovata (Photo : Fabien Lombard)
Les mésocosmes déployés dans la rade de Villefranche (© L. Maugendre, LOV)
Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Squid larva (Photo : Fabien Lombard)