Plankton bloom makes sea at Bang Saen beach bright green despite lack of rain

Upon checking the water quality on Saturday morning, it found 6,143 cells of Noctiluca scintillans or “sea sparkle” per litre of water.

As of Saturday morning, the sea quality at Bang Saen was still safe for swimmers, the institute said.

Dr Thon Thamrongnawasawat, a marine expert from Kasetsart University’s Faculty of Fisheries, had earlier said that though plankton bloom usually occurs in the rainy season, it can be encountered in other seasons too due to human factors.