对鄱阳湖沿湖渔区 1 1个县进行了调查 ,初步结果为 :镜检出车轮虫 1 2种 ;养殖鱼类对车轮虫的整体感染率依次为草鱼 >鳙鱼 >鲤鱼 >团头鲂 >白鲢 >白鲫 ;一般利用池塘水进行人工繁殖的水花鱼苗 ,其车轮虫感染率为 1 0 %～ 35 % ,利用循环用水或有机物含量较高的水源孵化鱼苗时 ,鱼苗的感染率则成倍提高 ;车轮虫对夏花鱼种的感染率达1 0 0 % ,且主要以大型车轮虫为主。秋片鱼种以上规格的鱼体主要感染小车轮虫。适宜车轮虫繁殖、生长的水温为 1 8～ 30℃ ,车轮虫可诱发某些细菌性鱼病。探讨了车轮虫的综合防治措施 ,包括切断传染源、用生石灰清塘消毒、用 1～2mg/kg硫酸铜与硫酸亚铁混合液 (5∶2 )杀虫等。 The investigation was carried out in 11 counties along the lake and along the lake in Poyang Lake. The preliminary results were as follows: 12 species of rodent pests were detected by microscopy; the overall infection rates of rodents on the rodents were: grass carp, bighead carp, big carp> bighead carp > Silver carp> white crucian carp; the general use of pond water for artificial propagation of fry, the carnivore infection rate of 10% to 35%, the use of recycled water or organic matter content of water to hatch the fry, the fry infection rate Fold increase. The infection rate of carnivores to summer flower species reached 100%, and the majority of them were mainly large-scale rotifer. Autumn fish species above the main body of the fish infected car rotifers. Suitable for carousel breeding, the growth of the water temperature of 18 ~ 30 ℃, the carousel can induce some bacterial fish disease. The comprehensive prevention and treatment measures of rodent pests were discussed, including cutting off the infection sources, disinfecting with clear lime and removing insects with 1 ~ 2mg / kg copper sulfate and ferrous sulfate solution (5: 2).