Les Diatomées - Bacillaria - mon océan et moi

Déploiement dun flotteur - Photo JJ. Pangrazi

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

The research vessel "Marion Dufresne"

Gelatinous plankton Mneniopsis (Photo : Fabien Lombard)

Siphonophore Forskalia formosa (Photo : Fabien Lombard)

Mollusk (Photo : Fabien Lombard)

PLAY VIDEO

This video describes how to perform the Ludion experiment and explains the physical processes involved.

PLAY VIDEO

Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.

Ciliate (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)

Teaching sheets

Préparation des mésocosmes sur le ponton du laboratoire d'Océanographie de Villefranche lors de l'expérience menée en rade de Villefranche en février 2013 (© L. Maugendre, LOV)

Phytoplankton bloom observed by the ocean color sensor MODIS onboard NASA satellite Terra in May 2010. The bloom spreads broadly in the North Atlantic from Iceland to the Bay of Biscay - Source : NASA's Earth Observatory (http:/earthobservatory.nasa.gov)

Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)

Acantharia (Photo : Fabien Lombard)

PLAY ANIMATION

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

Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)

Gelatinous plankton salpes and Beroe (Photo : Fabien Lombard)

Siphonophore Forskalia formosa (Photo : Fabien Lombard)