Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)
Dinoflagellate Ceratium extensum (Photo : Sophie Marro)
Larva of decapod crustacean (Photo : Fabien Lombard)
Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.
Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)
Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)
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)
Instrumented buoy (Photo : David Luquet)
Jellyfish Pelagia noctiluca (Photo : Fabien Lombard)
Annelid worm (Photo : Fabien Lombard)
Instrumented buoy (Photo : Emilie Diamond)
Crab Zoea larva (Photo : Fabien Lombard)
