地处渤海湾北岸的滦南县是河北省沿海大县,海淡水资源丰富,从20世纪80年代开始,露天海水养殖对虾就成为当地渔民赖以生存的主导产业。但养殖技术落后、品种单一等粗放型经营因素,影响了全县海洋经济的可持续发展。尤其从1992年虾病暴发以来,露天散养海产品的市场日见萎缩。由于 Luannan County, located in the north bank of Bohai Bay, is a coastal county in Hebei Province. With rich sea and fresh water resources, open-air mariculture of shrimp has become the leading industry for local fishermen since the 1980s. However, the backward cultivation techniques and the simple variety of products have affected the sustainable development of marine economy in the whole county. Especially since the outbreak of shrimp in 1992, the market of open-air reared seafood has been shrinking day by day. due to