Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
This video describes how to perform the Ludion experiment and explains the physical processes involved.
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Underwater glider (Photo : David Luquet)
Copepode Sapphirina iris (Photo : Fabien Lombard)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Siphonophores Forskalia formosa (Photo : Fabien Lombard)
Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)
Ciliate (Photo : Fabien Lombard)
Acantharia (Photo : Fabien Lombard)
Jellyfish Pelagia noctiluca (Photo : Fabien Lombard)
Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)
Dinoflagellate Ceratium tripos (Photo : Sophie Marro)
Dinoflagellate Ceratium paradoxides (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)
Gelatinous plankton salpes and Beroe (Photo : Fabien Lombard)
