The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Copepode Sapphirina iris (Photo : Fabien Lombard)
Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)
Instrumented buoy (Photo : Emilie Diamond)
Ciliate (Photo : Fabien Lombard)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
Salpes - La vie enchaînée
Bien que d’apparence primitive, les salpes sont de proches ancêtres des poissons. Lorsque les algues abondent, les salpes prolifèrent en de longues chaînes d’individus clonés.
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)
Acantharia (Photo : Fabien Lombard)
Squid larva (Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)
Diatom genus Cylindrotheca (Photo : Sophie Marro)
Ctenaria Eucharis multicornis (Photo : Fabien Lombard)
Annelid worm (Photo : Fabien Lombard)
Profiling float (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)
