Toxic jellyfish and cold water outbreaks are causing significant damage to fisheries in South Korea, with the National Institute of Fisheries Science reporting toxic jellyfish in certain areas and the lifting of a cold water warning leading to oxygen mass incidents. These events, coupled with a decline in seafood consumption due to the Corona 19 incident, have led to massive deaths among aquaculture organisms such as scallops and oysters, with Gyeongnam Province suffering the most. Additionally, concerns about a potential red tide event due to rising water temperatures are heightening, further threatening the already struggling fisheries. The Academy of Fisheries Science has called for increased vigilance within the aquaculture industry.