Tunicata Pyrosoma (Photo : Fabien Lombard)
Pleurobrachia
Propulsées par huit rangées de peignes, les groseilles de mer déploient deux longs tentacules pour pêcher des crustacés.
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)
Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Pelagia - Fearsome Jellyfish
Mauve jellies move in droves, their nasty stings feared by swimmers.
Acantharia (Photo : Fabien Lombard)
The various components of a profiling float type PROVOR
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)
Coccolithophore (Photo : Sophie Marro)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Annelid worm (Photo : Fabien Lombard)
Les Diatomées - Bacillaria
Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)
Copepode Sapphirina iris (Photo : Fabien Lombard)
