Rhizostoma pulmo

Rhizostoma pulmo, commonly known as the barrel jellyfish,Aquarium of Genoa – species description: Rhizostoma pulmo. Retrieved 31 May 2013. the dustbin-lid jellyfish or the frilly-mouthed jellyfish, is a scyphomedusa in the family Rhizostomatidae. It is found in the northeast Atlantic, and in the Adriatic, Mediterranean Sea, Black Sea and Sea of Azov. It is also known from the southern Atlantic off the western South African coast and into False Bay.Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. Two Oceans: a guide to the marine life of southern Africa It is common in the Irish Sea. It typically is up to 40 cm in diameter, but can exceptionally reach 150 cm or larger, making it the largest jellyfish in British and Irish waters (Cyanea capillata reaches an even larger size, but is generally smaller in Britain). On 13 July 2019, wildlife biologist Lizzie Daly dived off the coast of Cornwall in the United Kingdom, along with the underwater cinematographer Dan Abbott. The two divers shared their encounter with a human-sized barrel jellyfish, Rhizostoma pulmo. The species could typically grow up to one meter (3.2 feet) and weigh up to 25 kilograms (55 lbs). However, they are not larger than the lion's mane jellyfish. Rhizostoma pulmo is moderately venomous but not as deadly as other species. Effects include a burning sensation on the skin, dermatitis, and ulcers which confirms it is toxic to humans. However, it does not pose a serious threat to humans. It is a favourite food of the leatherback turtle. Rhizostoma pulmo washed ashore at Bournemouth in southern England Orifice of a barrel jellyfish In Asia, they are a source of bioactive compounds used in traditional food and medicine. One study indicates that washing in aqueous solutions and the separation of high molecular weight proteins from the extract, e.g., by membrane filtration, could be a way to remove possible toxic compounds from jellyfish extracts and to concentrate potentially bioactive soluble compounds. The potentially active soluble components may have uses as nutraceutical and cosmeceutical ingredients.

No narrative description available for this taxon yet.