Surface chlorophyll a concentration in the global ocean.
Dinoflagellate Ceratium azoricum (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Les Dinoflagellés - Ceratium hexacanthum
chaîne de Ceratium hexacanthum qui restent les uns à la suites des autres au fur et à mesure des divisions.
Le mouvement des flagelles est bien visible.
Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)
Gelatinous plankton salpes and Beroe (Photo : Fabien Lombard)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)
The research vessel "Marion Dufresne"
This video describes how to perform the Ludion experiment and explains the physical processes involved.
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)
Siphonophore Forskalia formosa (Photo : Fabien Lombard)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
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.
Amphipode crustacean (Photo : Fabien Lombard)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
