黄河三角洲地区有平原人造水库19333hm2(29万亩),其中设计库容1000万m3水体以上的水库17座。水源均来自黄河,水质良好,无污染。近几年淡水养殖生产发展较快,并形成一定规模。特别是发展水库大银鱼增养殖产业,效益明显,2005年累计获利千万元以上。但 There are 19333hm2 (290000 hectares) plain artificial reservoirs in the Yellow River Delta, of which 17 reservoirs with a storage capacity of 10 million m3 of water are designed. Water from the Yellow River, water quality is good, no pollution. In recent years, freshwater aquaculture production has developed rapidly and has formed a certain scale. In particular, the development of the reservoir silverfish by breeding industry, the obvious benefits, in 2005 a total profit of more than 10 million yuan. but