Aerial photo taken on Aug. 16, 2020 shows fishing boats sailing on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province. (Xinhua/Zhang Liyun)

Fishing boats sail on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province, Aug. 16, 2020. (Xinhua/Zhang Liyun)

Aerial photo taken on Aug. 16, 2020 shows fishing boats sailing on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province. (Xinhua/Zhang Liyun)

Aerial photo taken on Aug. 16, 2020 shows fishing boats sailing on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province. (Xinhua/Zhang Liyun)

A fishing boat sails on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province, Aug. 16, 2020. (Xinhua/Zhang Liyun)

Fishing boats sail on the sea as the summer fishing moratorium ended in Xincun Township in south China's Hainan Province, Aug. 16, 2020. (Xinhua/Zhang Liyun)