A year from the Arctic

Espèce du genre Odontella mobiliensis - Photo Sophie Marro

Diatom species Odontella mobiliensis (Photo : Sophie Marro)

World ocean currents map

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

Ctenaria Beroe ovata (Photo : Fabien Lombard)

Amphipode crustacean (Photo : Fabien Lombard)

Copepode Coryceide (Photo : Fabien Lombard)

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Phronimes - Monstres des tonneaux
Recyclant salpes et méduses, la femelle phronime construit des tonneaux gélatineux et y élève sa progéniture.

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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.

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

Dinoflagellate Ceratium tripos (Photo : Sophie Marro)

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

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

Acantharia (Photo : Fabien Lombard)

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The profiling float

Ciliate (Photo : Fabien Lombard)

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

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)

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Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.