平阳县位于浙江南部,北邻飞云江,南有敖江横贯东西,内陆水域辽阔,水产资源十分丰富,并盛产河蟹。60年代后由于水利建设,使河蟹的洄游受阻,资源的延续再生大受影响,产量大幅度下降。80年代开始,这一问题受到了水产部门的重视,对河蟹的增殖 Pingyang County is located in southern Zhejiang Province, north of Feiyun River, the Aojiang River runs through the east and west, vast inland waters, aquatic resources are very rich, and rich crabs. Since the 1960s, due to the construction of water conservancy, migration of crabs has been hindered, and the continued regeneration of resources has been greatly affected, with a sharp drop in output. Since the 1980s, this issue has been the focus of the aquatic sector, the proliferation of crabs