Surface chlorophyll a concentration in the global ocean.

Jellyfish Pelagia noctilica  (Photo : Fabien Lombard)

Instrumented buoy (Photo : Emilie Diamond)

Underwater glider (Photo : David Luquet)

Ctenaria Eucharis multicornis  (Photo : Fabien Lombard)

Ciliate (Photo : Fabien Lombard)

Acantharia (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)

Underwater glider (Photo : David Luquet)

Mollusk  (Photo : Fabien Lombard)

World ocean currents map

Dinoflagellate Ceratium falcatum (Photo : Sophie Marro)

Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)

Dinoflagellate Ceratium tripos (Photo : Sophie Marro)

Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)