Phronimes - Monstres des tonneaux
Recyclant salpes et méduses, la femelle phronime construit des tonneaux gélatineux et y élève sa progéniture.
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)
Coccolithophore (Photo : Sophie Marro)
Drifting profiling floats in the Atlantic
Surface chlorophyll a concentration in the Mediterranean Sea.
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
The research vessel "James COOK"
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)
Diatom genus Cylindrotheca (Photo : Sophie Marro)
Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)
Instrumented buoy (Photo : Emilie Diamond)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Surface chlorophyll a concentration in the global ocean.
Squid larva (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)
