Diatom genus Cylindrotheca (Photo : Sophie Marro)

Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)

Diatom genus Coscinodiscus (Photo : Sophie Marro)

Jellyfish Pelagia noctilica  (Photo : Fabien Lombard)

Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)

Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)

Remote-controlled sailboat

Diatom genus Chaetoceros (Photo : Sophie Marro)

Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)

Siphonophores Forskalia formosa (Photo : Fabien Lombard)

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

Copepode Coryceide  (Photo : Fabien Lombard)

Instrumented buoy (Photo : David Luquet)

Foraminifera Orbulina universa  and mollusk larva (Photo : Fabien Lombard)

Coccolithophore  (Photo : Sophie Marro)

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)