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)
Krill (Photo : Fabien Lombard)
Cténophores - Orgie de couleurs
Vagues de lumière iridescentes, à l'affût de proies, voici les cténophores.
Ostracodes (Photo : Fabien Lombard)
Acantharia (Photo : Fabien Lombard)
Drifting profiling floats in the Atlantic
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
Siphonophore (Photo : Fabien Lombard)
Siphonophores (Photo : Fabien Lombard)
Ctenaria Beroe ovata (Photo : Fabien Lombard)
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)
Underwater glider (Photo : David Luquet)
Instrumented buoy (Photo : David Luquet)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Pelagia - Fearsome Jellyfish
Mauve jellies move in droves, their nasty stings feared by swimmers.
Instrumented buoy (Photo : David Luquet)
