Les Dinoflagellés - Ceratium gravidum

bouée instrumentée - Photo : David Luquet

Instrumented buoy (Photo : David Luquet)

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

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)

Underwater glider (Photo : David Luquet)

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Appendiculaires - Ils vivent dans leurs filets
L’appendiculaire, proche ancêtre des vertébrés, fabrique des logettes aux filtres délicats à la fois résidence et filet de pêche.

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Dinoflagellate Ceratium ranipes grd mains (Photo : Sophie Marro)

Appendicularia Oikopleura dioica (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.

Dinoflagellate Ceratium extensum (Photo : Sophie Marro)

Crab larva (Photo : Fabien Lombard)

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Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.

Ctenaria Beroe ovata (Photo : Fabien Lombard)

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The profiling float