Cténophores - Orgie de couleurs
Vagues de lumière iridescentes, à l'affût de proies, voici les cténophores.
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)
Underwater glider (Photo : David Luquet)
Underwater glider (Photo : David Luquet)
The research vessel "Marion Dufresne"
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)
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.
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Remote-controlled sailboat
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
Foraminifera Ruber (Photo : Fabien Lombard)
Profiling float (Photo : David Luquet)
Squid larva (Photo : Fabien Lombard)
Tunicata Pyrosoma (Photo : Fabien Lombard)
Mollusk (Photo : Fabien Lombard)
Ostracodes (Photo : Fabien Lombard)
