对澧水下游水系保河堤镇的黄颡鱼体内寄生蠕虫进行了初步研究。发现其膀胱和消化道内寄生有3种蠕虫,分别是巴氏叶形吸虫、少睾恒河绦虫和黄颡旋驼形线虫。这3种蠕虫的感染率分别为65.0%、34.9%和74.7%;感染强度分别为4.12、1.72和14.8。叶形吸虫和旋驼形线虫的感染率有随体长的增长而逐渐升高的趋势,但有所波动;恒河绦虫的感染率在鱼体长18cm以下基本一致,鱼体长18cm以上则明显下降。恒河绦虫的感染率和感染强度在3、4月份比较高,5月份则下降;旋驼形线虫相反,4、5月份很高,3月份较低;叶形吸虫在5月份稍有降低。 A preliminary study on the parasitic worms in vivo of the catfish Pelteobagrus fulvidraco from Baodihe town in the Huangshui River was conducted. Found in the bladder and the digestive tract parasitic three kinds of worms, respectively, are Enterobacterpasciatus, oligozoosperms Taenia xylostella and Xanthophyla nematodes. The infection rates of these three worms were 65.0%, 34.9% and 74.7% respectively; the infection intensities were 4.12, 1.72 and 14.8, respectively. The infection rate of Trichoplusia and Spirulina reached a trend of increasing with the increase of body length, but fluctuated. The infection rate of tapeworm was almost equal to 18cm in length, while the length of fish was 18cm Significant decline. The infection rate and infection intensity of tapeworm were higher in March and April, but decreased in May. On the contrary, they were high in April and May and low in March. The incidence of mosquito was slightly lower in May.