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)
Dinoflagellate Ceratium azoricum (Photo : Sophie Marro)
Gelatinous plankton salpes and Beroe (Photo : Fabien Lombard)
Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)
Remote-controlled sailboat
Ciliate (Photo : Fabien Lombard)
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)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Profiling float (Photo : David Luquet)
Les mésocosmes déployés dans la rade de Villefranche en face de l'observatoire océanologique de Villefranche (© L. Maugendre, LOV)
Tunicata Pyrosoma (Photo : Fabien Lombard)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Ciliate (Photo : Fabien Lombard)
Dinoflagellate Ceratium tripos (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
