据有关文献记载,南通市海岸线长209km,海涂面积近13.34×10~4ha,其中建国以来围垦的面积有2.85×10~4ha。目前已围待开垦的滩涂荒地尚有0.53×10~4ha,海堤外滩涂面积为10.48×10~4ha,因此可供开发海水养殖资源十分丰富。同时全市175km 的海岸线平均以每年25m 的速度向外淤长延伸,预计“八五”期间尚可 According to the relevant literature, the coastline of Nantong is 209km long and the sea area covers an area of ​​nearly 13.34 × 10 ~ 4ha. Since the founding of the People’s Republic, the reclamation area has been 2.85 × 10 ~ 4ha. At present, there are 0.53 × 10 ~ 4 ha of tundra wasteland that has been taken up for reclamation, and the area of ​​dikes outside the dyke is 10.48 × 10 ~ 4 ha. Therefore, the resources for developing mariculture are very rich. At the same time, the 175km coastline of the whole city extends silt outward at an average speed of 25m per year. It is estimated that the “85” period is acceptable