Carte de la camapagne du navire oceanographique James COOK
Le trajet du bateau sur fond couleur de la mer.
Les Dinoflagellés - Ceratium gravidum
Ceratium gravidum dont en voit parfaitement les mouvements d’un des deux flagelles.
Instrumented buoy (Photo : Emilie Diamond)
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)
Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Les Diatomées - Bacillaria
Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
This video describes how to perform the Ludion experiment and explains the physical processes involved.
Animation of the biosphere obtained from the ocean color sensor SeaWiFS
Siphonophores (Photo : Fabien Lombard)
Acantharia (Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
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)
Jellyfish Aequorea aequorea (Photo : Fabien Lombard)
Dinoflagellate Ceratium tripos (Photo : Sophie Marro)
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.
Siphonophore Forskalia formosa (Photo : Fabien Lombard)
