This video describes how to perform the Ludion experiment and explains the physical processes involved.
Instrumented buoy (Photo : David Luquet)
Squid larva(Photo : Fabien Lombard)
Crab larva (Photo : Fabien Lombard)
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. Duringthe austral summer,the amount of chlorophyllais so low thatthe water becomesdeepblue,almostpurple. (Photo : Joséphine Ras)