Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
Instrumented buoy (Photo : Emilie Diamond)
Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)
Instrumented buoy (Photo : Emilie Diamond)
Profiling float (Photo : David Luquet)
Instrumented buoy (Photo : Emilie Diamond)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)
Dinoflagellate Ceratium praelongum (Photo : Sophie Marro)
Colony of salps Salpa fusiformis (Photo : Fabien Lombard)
Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
Siphonophores - The longest animals on the planet
Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Siphonophores Forskalia formosa (Photo : Fabien Lombard)
