This video show a jellyfish, Rhizostoma pulmo, partially eaten by fish. It often happens during our dives to find jellyfish that have been attacked by fish; in fact they represent an important food for many marine animals including cetaceans: such as dolphins and whales, but also for sea turtles. It is easy to understand why the plastic found in the sea: bags, nylon, polystyrene, etc. it is exchanged by animals with the jellyfish they eat. Plastic and microplastics thus enter the fish food chain. Larger plastics can bring marine animals to death, microplastics are digested and molecules, if absorbed by meat, enter the food chain that sees man on top of the pyramid. polmone di mare parzialmente mangiato dai pesci
Rhizostoma pulmo, commonly known as the barrel jellyfish, 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. It is common in the Irish Sea. It typically is up to 40 cm (16 in) in diameter, but can exceptionally reach 150 cm (59 in) or larger, making it the largest jellyfish in British 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 Cornowall 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. Its tentacles are usually not to cause serious dangers for humans. Only on particularly sensitive subjects by contact they can cause irritation which spontaneously disappears in a short time but leaves an itchy or annoying pain.
(extract from Wikipedia)