Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Scientists collecting seawater samples from the rosette (Photo : Stacy Knapp, Woods Hole Oceanographic Institution)
Ctenaria Beroe ovata (Photo : Fabien Lombard)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana
Diatom genus Coscinodiscus (Photo : Sophie Marro)
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 falcatum (Photo : Sophie Marro)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)
Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.
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.
Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
Crab Zoea larva (Photo : Fabien Lombard)
Dinoflagellate Ceratium tripos (Photo : Sophie Marro)
