Les mésocosmes attirent les poissons ! (© Stareso)

Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)

Tunicata Pyrosoma  (Photo : Fabien Lombard)

Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.

Acantharia (Photo : Fabien Lombard)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

The research vessel "Marion Dufresne"

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)

Instrumented buoy (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)

Profiling float (Photo : David Luquet)

Siphonophore  Forskalia formosa (Photo : Fabien Lombard)

Acantharia (Photo : Fabien Lombard)

Vue sous-marine d'un groupe de mésocosmes montrant un plongeur récoltant les pièges à sediment (© Stareso)

Instrumented buoy (Photo : Emilie Diamond)

Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni