Huge Nuclear Reactor Shut Down by Jellyfish
Swedish plant is back in business after massive clog
By John Johnson, Newser Staff
Posted Oct 1, 2013 5:15 PM CDT
File photo of moon jellyfish.   (AP Photo/Lionel Cironneau, File)

(Newser) – The Oskarshamn power plant in Sweden has one of the biggest nuclear reactors in the world, but it's apparently no match for tiny jellyfish. Tons of moon jellyfish clogged the reactor's intake pipes from the ocean over the weekend, forcing the plant to shut down, reports Popular Science. (Not so comforting tidbit: It's a "boiling-water" type reactor, same as at Fukushima.) All was back to normal by today, however.

The jellyfish were in a "bloom" cycle, a phenomenon that produces huge numbers at once, and a marine biologist tells Phys.org that "more and more of these extreme cases of blooming jellyfish" are cropping up. Moon jellyfish in particular thrive in areas that have been overfished and consequently overrun by algae blooms. "They don't care if the oxygen concentration is low," said the biologist. The fish move out, and the jellyfish move in. A similar clog happened last year at California's Diablo Canyon plant, though the culprit then was technically sea salp.

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Showing 3 of 18 comments
Ivan_the_Gypsy
Oct 3, 2013 5:01 AM CDT
It's the jelly fish in the Senate that caused the government to "shut down." King Jellyfish is that senile old phart called Harry Reid, a parasite from Nevada.
FirefoxisSpying
Oct 2, 2013 12:19 AM CDT
Ban Jellyfish..............Ban everything
OrneryPup
Oct 1, 2013 11:39 PM CDT
Dear Earth has given us these wonderfully powerful elements. And yet, the best we can do is boil water to generate electricity, and make massive nuclear explosions. Someday, hopefully sooner than later, we will figure out the best way to extract energy from radioactive materials. Until then we deal with catastrophic meltdown potential. Chernobyl Fukushima Three Mile Island Oskarshamn ( close call ) What is next ? Better buy your Geiger counter now while they are relatively cheap.