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针对近海水域污染严重海水中ＣＯＤ含量高，Ｎ、Ｐ极富营养化，达不到海水育苗用水标准的状况，采取大型蓄水池移植川蔓藻（Ｒｕｐｐｉｒ ｒｏｓｔｅｌｌａｔａ Ｋｏｃｈ）净化育苗用水，在一段时间内，大大降低海水ＣＯＤ、Ｎ、Ｐ等化学指标。ＣＯＤ平均消除率达９４．３８％，ＰＯ４３－－Ｐ、ＮＨ３－Ｎ等降解几近零，ＮＯ２－－Ｎ、ＮＯ３－－Ｎ未检出。采用同样技术用净化水培育日本对虾（Ｐｅｎａｅｕｓ Ｊａｐｏｎｉｃｕｓ Ｂａｔｅ），无节幼体到仔虾平均成活率高达 ６６． ３％和 ７２． ｌ％。
In view of the situation of high COD content and extremely N, P eutrophication in seawater polluted seawater, which can not meet the seawater seedling water use standard, Ruppir rostellata Koch was transplanted to purify the seedling water for a period of time Within, greatly reduce the sea water COD, N, P and other chemical indicators. The average COD removal rate reached 94.38%. The PO43 - P and NH3 - N degradation rates were nearly zero. NO2 - N and NO3 - N were not detected. Using the same technique to culture Japanese shrimp (Penaeus Japonicus Bate) with purified water, the average survival rate of nauplii to larvae was as high as 66%. 3% and 72. l%.