Bio-assessment in Liao River basinWe made thirty representative sites in April and June 2005, then we mensurated andanalyzed benthic animals and aquatic bacteria which gathered from Liao River basin.

• 辽河流域水质生物评价2005年4月和6月在辽河流域布设30个有代表性的断面,进行水生细菌、大型底栖动物的测定分析。