Ceratium - Capter la lumière avec ses doigts
Ceratium appartient à l'immense groupe des dinoflagellés.
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
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)
Siphonophores (Photo : Fabien Lombard)
Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)
Siphonophore Forskalia formosa (Photo : Fabien Lombard)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium furca (Photo : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Crab Zoea larva (Photo : Fabien Lombard)
Large rosette sampler used in the "World Ocean Circulation Experiment". This rosette has 36 10-liter Niskin bottles, an acoustic pinger (lower left), an "LADCP" current profiler (yellow long tube at the center), a CTD (horizontal instrument at the bottom), and transmissometer (yellow short tube at the center). (Photo : L. Talley)
Radiolarians (Photo : Fabien Lombard)
Diatom genus Rhizosolenia (Photo : Sophie Marro)
Appendicularia Oikopleura dioica (Photo : Fabien Lombard)
Acantharia (Photo : Fabien Lombard)
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)
This video describes how to perform the Ludion experiment and explains the physical processes involved.
