南大镇位于湖南省沅江市北部湖区，地处洞庭湖腹地，有23个村、5 785户、31 200人，耕地面积2 333公顷，其中养殖水面307公顷，水产资源丰富，是沅江市重点产鱼乡镇之一。“九五”以来，南大镇大力开发乌鳢产业，形成了规模、品牌和产业化，被誉为“中华乌鳢之乡”。通过乌鳢的 Nanta Town is located in the northern part of Yuanjiang City, Hunan Province. It is located in the hinterland of Dongting Lake. It has 23 villages with 5,785 households and 31,200 people. The cultivated land area is 2 333 hectares, of which 307 hectares are farmed and aquatic resources are abundant. One of the fish towns. Since the Ninth Five-Year Plan, Nanta Township has vigorously developed the Wujian industry, forming its scale, brand and industrialization, and has been hailed as “the hometown of Wuhua in China.” Through