Beginning on June 27, Hainan initiated two rounds of emergency response to the red tide disaster. Red tide covers almost the entire western and southern coastline of Hainan Province, causing huge losses to mariculture in many counties and cities. Currently, red tide is also likely to invade Lingshui in Hainan, posing a threat to this core production area of marine aquatic seedlings. “Red tides are very rare in Hainan this time.” Lu Songhui, chief expert of the Hainan Marine Disaster Emergency Response Expert Group and director of the Red Tide and Marine Biology Research Center at Jinan University, told Caixin that Hainan has a small population, good water quality in the surrounding waters, no large industrial enterprises, and red tides rarely occur. According to his records, these two rounds of red tide, which began at the end of June 2026, were the largest and the worst losses in Hainan. He said that according to satellite remote sensing data, specks with abnormal water color suspected to be red tides in Sanya City extended from the shore to an area 20 to 30 kilometers away.

Beginning on June 27, Hainan initiated two rounds of emergency response to the red tide disaster. Red tide covers almost the entire western and southern coastline of Hainan Province, causing huge losses to mariculture in many counties and cities. Currently, red tide is also likely to invade Lingshui in Hainan, posing a threat to this core production area of marine aquatic seedlings. “Red tides are very rare in Hainan this time.” Lu Songhui, chief expert of the Hainan Marine Disaster Emergency Response Expert Group and director of the Red Tide and Marine Biology Research Center at Jinan University, told Caixin that Hainan has a small population, good water quality in the surrounding waters, no large industrial enterprises, and red tides rarely occur. According to his records, these two rounds of red tide, which began at the end of June 2026, were the largest and the worst losses in Hainan. He said that according to satellite remote sensing data, specks with abnormal water color suspected to be red tides in Sanya City extended from the shore to an area 20 to 30 kilometers away.