We are now facing a real tropicalization of the Mediterranean Sea which is leading to a too rapid and rapid change of this ecosystem, so we are increasingly witnessing an invasion of alien species, explosions of mucilage and toxic algae, a decrease in native fish species, a reduction in fishing and catches and, as can be seen from these images, a proliferation of jellyfish ...

Rhizostoma pulmo, Barrel Jellyfish is one of the most common jellyfish in the Mediterranean Sea. In the video we see it swimming under the surface of the water letting itself be carried away by the current and the waves, this jellyfish is completely harmless and we can easily touch it on the umbrella, the tentacles are however slightly stinging so it is advisable to stay away from it even if the irritations however, they resolve within a few minutes. ...

Like all summers we witness the "terrible proliferation of jellyfish" that scares us so much. Mediterranea Cassiopeia (Cotylorhiza tuberculata) (Mediterranean jellyfish, Mediterranean jelly or fried egg jellyfish) that we see in this video is a scifomedusa of the Cepheidae family, and is totally harmless. ...

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; ...

The first encounter of the 2021 season was this beautiful specimen of the Barrel jellyfish Rhizostoma pulmo. They are usually jellyfish that meet in late summer and autumn, so encountering this jellyfish in May is a fairly rare occurrence ...