摘要
2011年9~10月,对逊别拉河底栖动物进行了调查研究,并利用生物指数对水质进行评价。结果表明,共采集到15目28科55种底栖动物,其中水生昆虫种类最多为37种,分属7目16科,占总数的67.27%。出现频率排在前三位的分别是粗腹摇蚊（Pentaneura sp.）、狭萝卜螺（Radix lagotis）和半球多脉扁螺（Polypylis hemisphaerula）。底栖动物平均密度为64.80ind.m-2、生物量为4.43g.m-2。功能摄食类群以捕食者占优势,共计为23种,刮食者15种,收集者11种,撕食者6种。BI生物指数评价结果表明,逊别拉河水质比较清洁。
An investigation was conducted on the community structure ofmacrobenthos in the Xunbiela River from September to Oc- tober in 2011, and the water quality was assessed with biotic indices. A total of 55 species of macrobenthos were collected, belonging to 15 orders and 28 families, with 37 species of aquatic insects （67.27% of the total） belonging to 16 families and 7 orders. Pentaneura sp., Radix lagotis and Polypylis hemisphaerula） were of the first three species in incidence order. The macrobenthos were found at an average density of 64.80 ind·m^-2 and at a biomass of 4.43 g·m^-2. The predators including 23 species were predominately found in all fimctional feeding groups, the others including 15 shredders, 11 collectors and 6 scrapers. The BI assessment revealed that the water quality in Xunbiela River was clearer.
出处
《水产学杂志》
CAS
2012年第2期35-39,共5页
Chinese Journal of Fisheries
基金
中央级公益性科研院所基本科研业务费专项(201011)
公益性行业(农业)科研专项(200903048-06)
关键词
逊别拉河
底栖动物
群落结构
生物监测
水质
Xunbiela River
macrobenthos
community structure
biomonitoring
water quality
