Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)
Instrumented buoy (Photo : David Luquet)
Diatom genus Cylindrotheca (Photo : Sophie Marro)
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
Ctenaria Beroe ovata (Photo : Fabien Lombard)
Diatom genus Hemiaulus (Photo : Sophie Marro)
Crab larva (Photo : Fabien Lombard)
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
Carte bathymétrique mondiale
Large rosette sampler used in the "World Ocean Circulation Experiment". This rosette has 36 10-liter Niskin bottles, an acoustic pinger (lower left), an "LADCP" current profiler (yellow long tube at the center), a CTD (horizontal instrument at the bottom), and transmissometer (yellow short tube at the center). (Photo : L. Talley)
Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)
Illustration in synthesized images of the seasons of the ocean: a year from the Antarctic - Animation Clement Fontana
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.
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)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Surface chlorophyll a concentration in the Mediterranean Sea.
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
Underwater glider (Photo : David Luquet)
