Rafts for oyster cultivation are seen in Wugen county, East China's Zhejiang Province on September 7, 2021. Wugen farmers have taken advantage of the 28,000 mu (1,867 hectares) of shallow beach and mudflats to breed fish, shrimp, shellfish, algae, crabs and other marine products, which has increased farmers' income and formed a modern fishery industry zone. Photo: VCG