Quizz observation of the oceans and seas

Espèce du genre Cylindrotheca - Photo Sophie Marro

Diatom genus Cylindrotheca (Photo : Sophie Marro)

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)

Diatom genus Rhizosolenia (Photo : Sophie Marro)

Ctenaria Lampetia pancerina (Photo : Fabien Lombard)

Siphonophore Forskalia formosa (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

Rosette for collecting seawater samples

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The Glider

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Les Diatomées - Bacillaria
Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.

Squid larva (Photo : Fabien Lombard)

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Pelagia - Fearsome Jellyfish
Mauve jellies move in droves, their nasty stings feared by swimmers.

Vue sous-marine d'un groupe de mésocosmes (© Stareso)

Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni

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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.

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Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)

Underwater glider (Photo : David Luquet)

Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)

Colony of salps Salpa fusiformis (Photo : Fabien Lombard)