Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
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)
Surface chlorophyll a concentration in the global ocean.
Diatom genus Rhizosolenia (Photo : Sophie Marro)
This video describes how to perform the Ludion experiment and explains the physical processes involved.
Dinoflagellate Ceratium candelabrum var depressum (Photo : Sophie Marro)
Dinoflagellés Ceratium massiliense var protuberans (Photo : Sophie Marro)
Ctenaria Lampetia pancerina (Photo : Fabien Lombard)
Siphonophore (Photo : Fabien Lombard)
Les mésocosmes attirent les poissons ! (© Stareso)
Copepode Coryceide (Photo : Fabien Lombard)
Ciliate (Photo : Fabien Lombard)
Dinoflagellates Ceratium platycorne var platycorne (Photo : Sophie Marro)
The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Profiling float (Photo : David Luquet)
