Quizz observation of the oceans and seas

Carte bathymétrique de la Mer Méditerranée

Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)

Dinoflagellate Ceratium reflexum (Photo : Sophie Marro)

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Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.

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

Dinoflagellate Ceratium praelongum (Photo : Sophie Marro)

Dinoflagellate Ceratium fusus (Photo : Sophie Marro)

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

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Sea Urchin - Planktonic Origins
Barely visible to the naked eye, sea urchin larvae grow and transform into bottom-dwelling urchins.

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

Instrumented buoy (Photo : Emilie Diamond)

Underwater glider (Photo : David Luquet)

Phytoplankton bloom observed in the Barents Sea (North of Norway) in August 2010 by the ocean color sensor MODIS onboard NASA satellite Aqua. Changes in ocean color result from modifications in the phytoplankton composition and concentration. The green colors are likely associated with the presence of diatoms. The shades of light blue result from the occurrence of coccolithophores, phytoplankton organisms that strongly reflect light due to their chalky shells - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Siphonophore (Photo : Fabien Lombard)

Acantharia (Photo : Fabien Lombard)

Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)

Diatom genus Coscinodiscus (Photo : Sophie Marro)

Foraminifera Ruber (Photo : Fabien Lombard)