Scientists collecting seawater samples from the rosette (Photo : Stacy Knapp, Woods Hole Oceanographic Institution)
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.
Ciliate (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.
Pleurobrachia
Propulsées par huit rangées de peignes, les groseilles de mer déploient deux longs tentacules pour pêcher des crustacés.
Ciliate (Photo : Fabien Lombard)
Dinoflagellate Ceratium praelongum (Photo : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
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)
Préparation des mésocosmes sur le ponton du laboratoire d'Océanographie de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)
Siphonophores (Photo : Fabien Lombard)
Colony of diatoms genus Bacillaria whose single cells slide against each other (Video : Sophie Marro)
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)
Carte bathymétrique de la Mer Méditerranée
Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)
Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)
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)
