Observation of the oceans and seas

Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)

Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)

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)

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

Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)

Jellyfish Pelagia noctilica (Photo : Fabien Lombard)

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

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Illustration in synthesized images of the seasons of the ocean: a year from the Arctic - Animation Clement Fontana

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The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.

Diatom genus Coscinodiscus (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)