Quizz marine phytoplankton

Underwater glider (Photo : David Luquet)

Jellyfish Aequorea aequorea (Photo : Fabien Lombard)

Dinoflagellate Ceratium arietinum var arietinum (Photo : Sophie Marro)

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

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The Glider

Profiling float (Photo : David Luquet)

Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)

Instrumented buoy (Photo : Emilie Diamond)

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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.

Gelatinous plankton Pelagia and Ctenophores (Photo : Fabien Lombard)

Average chlorophyll concentration in the surface ocean (from mi-September 1997 to August 2007) from the ocean color sensor SeaWiFS (NASA). Subtropical gyres, in the center of the oceanic basins, are characterized by very low concentrations of chlorophyll a (dark blue) - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Instrumented buoy (Photo : David Luquet)

Tunicata Pyrosoma (Photo : Fabien Lombard)

Acantharia (Photo : Fabien Lombard)

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

Jellyfish Pelagia noctilica (Photo : Fabien Lombard)

Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)

Siphonophore (Photo : Fabien Lombard)