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 ranipes grd mains (Photo : Sophie Marro)
Radiolarians (Photo : Fabien Lombard)
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Underwater glider (Photo : David Luquet)
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)
Surface chlorophyll a concentration in the Mediterranean Sea.
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Profiling float (Photo : David Luquet)
Dinoflagellate Ceratium carriense var volans (Photo : Sophie Marro)
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Underwater glider (Photo : David Luquet)
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.
Drifting profiling floats in the Atlantic
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)
Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)
Siphonophores Forskalia formosa (Photo : Fabien Lombard)
