This video describes how to perform the Ludion experiment and explains the physical processes involved.
Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)
Foraminifera Orbulina universa and mollusk larva (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)
Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)
Villefranche-sur-Mer in stormy weather, winter 2011 - Photo : J.-M. Grisoni
Instrumented buoy (Photo : David Luquet)
Instrumented buoy (Photo : Emilie Diamond)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
Ctenaria Lampetia pancerina (Photo : Fabien Lombard)
Profiling float (Photo : David Luquet)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
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.
