About Rhizostoma octopus (Gmelin, 1791)
Rhizostoma octopus (Gmelin, 1791) is a species of marine invertebrate jellyfish. It is most commonly found in the English Channel, the North Sea, and the North Atlantic extending to the Norwegian Sea. One of its predators is the leatherback sea turtle. This jellyfish is harvested to be used as a natural source of collagen.