The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
Mollusk (Photo : Fabien Lombard)
Dinoflagellate Ceratium furca (Photo : Sophie Marro)
Copepode Sapphirina iris (Photo : Fabien Lombard)
Diatom species Odontella mobiliensis (Photo : Sophie Marro)
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Siphonophore Forskalia formosa (Photo : Fabien Lombard)
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.
Les mésocosmes attirent les poissons ! (© Stareso)
Instrumented buoy (Photo : David Luquet)
Acantharia (Photo : Fabien Lombard)
Diatom genus Coscinodiscus (Photo : Sophie Marro)
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
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)
Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.
Underwater glider (Photo : David Luquet)