Appendiculaires - Ils vivent dans leurs filets
L’appendiculaire, proche ancêtre des vertébrés, fabrique des logettes aux filtres délicats à la fois résidence et filet de pêche.
Siphonophores (Photo : Fabien Lombard)
Instrumented buoy (Photo : David Luquet)
Les Diatomées - Bacillaria
Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Siphonophore (Photo : Fabien Lombard)
Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)
Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)
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)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Copepode Sapphirina iris (Photo : Fabien Lombard)
Instrumented buoy (Photo : David Luquet)
Les mésocosmes attirent les poissons ! (© Stareso)
Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
