Clogging power plant intakes caused by the gelatineous plankton in the eastern Korean water

Abstract

Euphausiids, Euphausia pacifica and jellies, Aurelia aurita have been reported to be the main organisms to colg the drum screen in the cooling water supply system of a nuclear power plant at Uljin, eastern coast of korea. However, a large amount of gelatinous plankton, especially Salpa fudiformis also had been sucked into the seawater intake to clog the screen at 18 June 2003 (Korea Hydro & Nuclear Co. estimated presumptively the whole amount of the clogged animals at 295 ton and it caused 38% of malfunction in generation capability of the power plant.