Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)
Tunicata Pyrosoma (Photo : Fabien Lombard)
Ciliate (Photo : Fabien Lombard)
Corail profond : Pour un niveau d'acidité prévu pour la fin du siècle, une diminution de construction de son squelette de 50 % a été mesurée chez le corail d'eaux froides Lophelia pertusa. Les communautés coralliennes d'eaux froides abritent un grand nombre d'espèces. Une diminution de la croissance des coraux constructeurs par l'acidification des océans peut menacer l'existence même de ces édifices. © C. Maier, LOV
Dinoflagellate Ceratium extensum (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)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Siphonophores - The longest animals on the planet
Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Colony of salps Salpa fusiformis (Photo : Fabien Lombard)
Radiolarians (Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana
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)
Drifting profiling floats in the Atlantic
Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)
The research vessel "Marion Dufresne"
This video describes how to perform the Ludion experiment and explains the physical processes involved.
Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
Stickers et Goodies
