Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Colony of dinoflagellates Ceratium hexacanthum. In the video, one can observe the movement of the flagella. (Video : Sophie Marro)
Vue sous-marine d'un groupe de mésocosmes (© Stareso)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Siphonophores (Photo : Fabien Lombard)
Surface chlorophyll a concentration in the Mediterranean Sea.
Mollusk (Photo : Fabien Lombard)
Vue sous-marine d'un groupe de mésocosmes montrant la structure de flottaison en surface (© Stareso)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Dinoflagellate Ceratium praelongum (Photo : Sophie Marro)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Ctenaria Lampetia pancerina (Photo : Fabien Lombard)
Annelid worm (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)
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)
Pleurobrachia
Propulsées par huit rangées de peignes, les groseilles de mer déploient deux longs tentacules pour pêcher des crustacés.
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. (Photo : Joséphine Ras)
Quizz the ocean seasons This quizz is about the concepts covered in the topic : the ocean seasons.
