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.
Profiling float (Photo : David Luquet)
Deployment of a profiling float (Photo : Jean-JacquesPangrazi)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Dinoflagellate Ceratium tripos (Photo : Sophie Marro)