Climate change probably increasing this problem – nuclear reactors halted because of jellyfish-like sea salps Jellyfish-like organisms force South Korea to halt its 2 nuclear reactors, https://www.livemint.com/news/world/jellyfishlike-organisms-force-south-korea-to-halt-its-2-nuclear-reactors-11617794802580.htmlSea salps — gelantinous, marine organisms that look like jellyfish — have clogged water systems used to cool nuclear reactors in South Korea, forcing two units offline. Sea salps — gelantinous, marine organisms that look like jellyfish — have clogged water systems used to cool nuclear reactors in South Korea, forcing two units offline. It’s the second time in less than three weeks Korea Hydro & Nuclear Power Co. shut the Hanul No. 1 and No. 2 units, after salps clogged water intake valves. The reactors, which each have a capacity of 950-megawatts, resumed operation last week before shutting again Tuesday.