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.
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
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)
Deployment of a profiling float (Photo : Jean-JacquesPangrazi)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium fusus (Photo : Sophie Marro)
Colony of salps Salpa fusiformis(Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
