Gelatinous plankton Mneniopsis (Photo : Fabien Lombard)
Dinoflagellate Ceratium fusus (Photo : Sophie Marro)
Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.
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)
Les mésocosmes déployés dans la rade de Villefranche en face de l'observatoire océanologique de Villefranche (© L. Maugendre, LOV)
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Rosette for collecting seawater samples
Instrumented buoy (Photo : Emilie Diamond)
Carte de la camapagne du navire oceanographique James COOK
Le trajet du bateau sur fond couleur de la mer.
Diatom genus Cylindrotheca (Photo : Sophie Marro)
Diatoms - Life in glass houses
Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.
Diatom genus Coscinodiscus (Photo : Sophie Marro)
Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Copepode Sapphirina iris (Photo : Fabien Lombard)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)