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Big Blue Conservation - Jellyfication of the sea

With its eight thin tentacles, four thicker "arms" and purplish mushroom-shaped bell, the Pelagia noctiluca or mauve stinger has become a regular, unwanted feature of the Côte d'Azur.
Despite the use of protective anti-jellyfish nets, thousands of the ancient organisms, whose population is thriving thanks to overfishing and global warming, still make it into swimming areas and are washing up onto Riviera beaches. Contact with its hairlike tentacles that can reach three metres in length causes nettle-like burns that take three days to clear and can provoke asthma and allergic attacks, and in rare cases heart failure.
To help swimmers avoid being ensnared in shoals of the poisonous invertebrates, the oceanological laboratory of Villefranche-Sur-Mer is launching a 48-hour internet jellyfish forecast.
"We're offering a five-point probability rating going from zero (no risk) to five (maximum jelly alert) on beaches of the Alpes-Maritimes region," Lars Sternmann, one of ten scientists working on the project told Le Parisien.
Biologists say their proliferation is in part down to climate change and rising water temperatures, but also a decline in its only real predators – turtles and tuna. The species, which glows in the dark (!!), has also benefited from rising plankton levels and pollution-related nutrients.
All the oceans of the planet have seen rising numbers, leading to long-term fears of a "jellification of the oceans," according to Jacqueline Goy, a medusa specialist at the oceanographic institute of Paris.
Source: Henry Samuel, The Telegraph