The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Diatom genus Hemiaulus (Photo : Sophie Marro)
Squid larva (Photo : Fabien Lombard)
Les mésocosmes déployés dans la rade de Villefranche (© L. Maugendre, LOV)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Annelid worm (Photo : Fabien Lombard)
The research vessel "Marion Dufresne"
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium tripos (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)
Diatoms - Life in glass houses
Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.
Surface chlorophyll a concentration in the Mediterranean Sea.
Ptéropodes - Mollusques qui nagent
Les papillons des mers construisent de fragiles coquilles. Résisteront-elles à l’acidification des océans?
Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)
This video describes how to perform the Ludion experiment and explains the physical processes involved.
