Quizz observation of the oceans and seas

Cnidaires : Pelagia noctiluca (crédit photo : Fabien Lombard)

Jellyfish Pelagia noctiluca (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)

Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)

Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)

Squid larva (Photo : Fabien Lombard)

Foraminifera (Photo : Fabien Lombard)

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

Gelatinous plankton Mneniopsis (Photo : Fabien Lombard)

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

Siphonophore Forskalia formosa (Photo : Fabien Lombard)

Dinoflagellate Ceratium tripos (Photo : Sophie Marro)

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