浑河抚顺段底栖动物(1987-2015)群落结构及水质评价

Benthic Animal(1987-2015)Community Structure and Evaluation of Water Quality in Fushun Section of Hun River

对1987-2015年浑河抚顺段底栖动物种类组成、生物密度变化、优势种及分布、水质生物学评价进行了统计分析。比较了Shannon-Wiener生物多样性指数和BI指数对浑河抚顺段底栖动物评价水质的适应性,得出了辽河流域监测经验对中国水生生物监测的启示。结果表明:浑河抚顺段处于清洁~中污染状态,底栖动物共检出132种,多年平均密度为104~11200个/m^2,优势种以寡毛类为主,BI指数较Shannon-Wiener生物多样性指数更适于辽河流域底栖动物水质生物评价。

Species composition, biological, density, dominant species and distribution, water quality biological evaluation of benthic animals which are from Fushun Section of Hun River during 1987-2015 were analyzed.The adaptability Shannon- Wiener diversity index and BI index on benthic animal water quality evaluation in Fushun Section was compared, which would provide the enlightenment from the experience of Liaohe River basin to aquatic biological monitoring in China.Results show that Fushun Section of Hun River is at the pollution level of clean-middle. 132 species benthic animals were detected, yearly average density is 104-11 200 ind/m2, with Oligochaeta as the dominant species. BI index is more suitable for the biological evaluation of the water quality of the benthic animals in Liaohe River Basin than Shannon-Wiener diversity index.