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.
Dinoflagellate Ceratium paradoxides (Photo : Sophie Marro)
Dinoflagellate Ceratium azoricum (Photo : Sophie Marro)
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)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Diatom genus Chaetoceros (Photo : Sophie Marro)
Colony of salps Salpa fusiformis (Photo : Fabien Lombard)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)
Instrumented buoy (Photo : Emilie Diamond)
Siphonophores Forskalia formosa (Photo : Fabien Lombard)
Jellyfish Leuckaztiara octona (Photo : Fabien Lombard)
Pleurobrachia
Propulsées par huit rangées de peignes, les groseilles de mer déploient deux longs tentacules pour pêcher des crustacés.
Diatom genus Rhizosolenia (Photo : Sophie Marro)
Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)
Copepode Sapphirina iris (Photo : Fabien Lombard)
Embryos and larvae
Drifting in the currents, embryos and larvae perpetuate the species and are food for multitudes.
