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)
Siphonophore (Photo : Fabien Lombard)
Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. Duringthe austral summer,the amount of chlorophyllais so low thatthe water becomesdeepblue,almostpurple. (Photo : Joséphine Ras)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Gelatinous plankton Pelagia and Ctenophores(Photo : Fabien Lombard)
