A swarm of billions of jellyfish wiped out a salmon farm off the coast of Ireland the other day. The swarm of Pelagia nocticula jellyfish, which were ununusually far north, away from the more southern waters in which they are usually found, made quick work of more than 100,000 fish:
The Northern Salmon Co. Ltd. said billions of jellyfish -- in a dense pack of about 10 square miles and 35 feet deep -- overwhelmed the fish last week in two net pens about a mile off the coast of the Glens of Antrim, north of Belfast. . . .CNN.
The species of jellyfish responsible, Pelagia nocticula -- popularly known as the mauve stinger -- is noted for its purplish night-time glow and its propensity for terrorizing bathers in the warmer Mediterranean Sea. Until the past decade, the mauve stinger has rarely been spotted so far north in British or Irish waters, and scientists cite this as evidence of global warming.
The moral here? Global warming = really good for jellyfish.