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自2000年以来,北方地区成功引进南美白对虾,养殖获得成功,养殖面积逐年扩大,取得较好的经济效益。天津地区池塘盐碱化严重,盐度2‰～15‰以上,养殖用水多为生活污水,pH值、氨氮严重超标,水质不易调节;加上近一两年养殖户盲目加大养殖密度,养殖管理体系跟不上,以及南美白对虾种质退化,致使南美白对虾的养殖发生严重病害。2004年有的养殖户几乎绝收,造成惨重的经济损失,严重挫伤了虾农的养殖积极性,。针对这一情况,天津市津南区双桥河镇海河湾水产养殖基地总结了5年来的养殖成功经验,归纳出一套
Since 2000, the successful introduction of Penaeus vannamei in the northern region has resulted in the success of aquaculture. The area of aquaculture has been expanded year by year with good economic returns. Salinization of ponds in Tianjin is serious with salinities of 2 ‰ to 15 ‰ or above. Most of the aquaculture water is domestic sewage. The pH and ammonia nitrogen exceed the standard seriously, and the water quality is not easy to adjust. In addition, in the last year or two, farmers blindly increase the breeding density, Management system can not keep up, as well as the degradation of P. vannamei, resulting in serious diseases of P. vannamei farming. In 2004, some farmers almost took over crops and caused heavy economic losses, which seriously dampened the enthusiasm of shrimp farmers. In response to this situation, Tianjin Jinnan Shuangqiaohe Haihe Bay Aquaculture Base summed up the successful experience of breeding five years, summed up a set