Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)
Deployment of a profiling float (Photo : Jean-JacquesPangrazi)
Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Dinoflagellate Ceratium carriense var volans (Photo : Sophie Marro)
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.
