The seasonal evolution of the chlorophyll a concentration as seen by a « water color » satellite (SeaWifs) in the Atlantic Ocean.
Dinoflagellate Ceratium pentagonum var robustum (Photo : Sophie Marro)
Drifting profiling floats in the Atlantic
Elephant seal equipped with a sensor
Dinoflagellate Ceratium teresgyr (Photo : Sophie Marro)
Vue sous-marine d'un groupe de mésocosmes montrant un plongeur récoltant les pièges à sediment (© Stareso)
Dinoflagellate Ceratium gravidum (Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Siphonophores - The longest animals on the planet
Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Tunicata Pyrosoma (Photo : Fabien Lombard)
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)
Satellite observation (GEOS-12) of Hurricane Katrina in August 2005 in the Gulf of Mexico - Source : NASA-NOAA
Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
Seasonal evolution of the chlorophyll a concentration as obtained by the ocean color sensor SeaWiFS in the Atlantic Ocean.
Diatom genus Rhizosolenia (Photo : Sophie Marro)
Deployment of a profiling float (Photo : Jean-Jacques Pangrazi)
Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)
Dinoflagellate Ceratium fusus (Photo : Sophie Marro)
