Pelagia - Fearsome Jellyfish
Mauve jellies move in droves, their nasty stings feared by swimmers.
Instrumented buoy (Photo : David Luquet)
Siphonophore Forskalia formosa (Photo : Fabien Lombard)
Acantharia (Photo : Fabien Lombard)
Jellyfish Pelagia noctilica (Photo : Fabien Lombard)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. During the austral summer, the amount of chlorophyll a is so low that the water becomes deep blue, almost purple. (Photo : Joséphine Ras)
Phronimes - Monstres des tonneaux
Recyclant salpes et méduses, la femelle phronime construit des tonneaux gélatineux et y élève sa progéniture.
Coccolithophore (Photo : Sophie Marro)
Velella - Planktonic Vessels
Colonies of polyps transported by prevailing winds, velella drift at the surface of warm seas.
Plankton
Plankton are a multitude of living organisms adrift in the currents.Our food, our fuel, and the air we breathe originate in plankton.
Foraminifera Ruber (Photo : Fabien Lombard)
Dinoflagellate Ceratium gravidum. In the video one can observe the movement of one of the two flagella. (Video : Sophie Marro)
This video describes how to perform the Ludion experiment and explains the physical processes involved.
Les Dinoflagellés - Ceratium gravidum
Ceratium gravidum dont en voit parfaitement les mouvements d’un des deux flagelles.
Copepode Sapphirina iris (Photo : Fabien Lombard)
Jellyfish Rhizostoma pulmo (Photo : Fabien Lombard)