自2000年以来,北方地区引进南美白对虾获得成功,养殖面积逐年扩大,取得较好的经济效益。但由于天津地区池塘盐碱化严重,水质问题较多,不易调节;加上近两年养殖户盲目加大养殖密度,养殖管理跟不上,致使南美白对虾的养殖发生严重病害。特别是2004年有的养殖户几乎绝收,造成惨重的 Since 2000, the introduction of P. vannamei in northern China has been successful, and the area of ​​breeding has been expanding year by year, achieving good economic benefits. However, due to serious salinization of ponds in Tianjin, water quality problems are more difficult to adjust; coupled with the past two years, farmers blindly increase the breeding density, culture management can not keep up, resulting in a serious disease Penaeus vannamei farming. In 2004, in particular, some farmers almost totally failed and caused heavy losses