Photo taken on April 30, 2021 shows fishing vessels berthed at Shenjiamen port in Putuo District of Zhoushan City, east China's Zhejiang Province. The annual summer fishing ban, covering the Bohai Sea, the Yellow Sea, the East China Sea, and the waters north to 12 degrees north latitude of the South China Sea, started Saturday. (Photo by Yao Feng/Xinhua)
