随着近年农业产业结构的大力调整,特种水产品养殖越来越多,河蟹养殖在我市发展尤为突出、现养殖发展到利用湖泊围拦养殖,池塘养殖以及稻田养殖,生产效益十分显著。然而苗种问题依然是我市河蟹养殖业的突出问题,八十年代后长江天然蟹资源匮乏,九十年代后辽河天然蟹资源也急剧下 With the vigorous readjustment of the structure of agricultural industry in recent years, more and more special aquatic products have been cultivated. The development of crab and aquaculture is particularly prominent in our city. Now the development of aquaculture has taken the advantage of the use of lake pens, ponds and paddy fields for cultivation. However, the problem of seedling is still a prominent problem in our city’s crab farming industry. Since the 1980s, there were few natural crab resources in the Yangtze River. After the 1990s, natural crab resources in the Liaohe River also drastically dropped