Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
Les mésocosmes déployés dans la rade de Villefranche (© L. Maugendre, LOV)
Profiling float (Photo : David Luquet)
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)
Acantharia (Photo : Fabien Lombard)
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.
This video describes how to perform the Ludion experiment and explains the physical processes involved.
Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana
Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Gelatinous plankton Mneniopsis (Photo : Fabien Lombard)
Annelid worm (Photo : Fabien Lombard)
Diatom genus Hemiaulus (Photo : Sophie Marro)
Underwater glider (Photo : David Luquet)
Diatom genus Coscinodiscus (Photo : Sophie Marro)
Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.