水生生物学报2017，Vol.41Issue(5)：1062-1070,9.DOI:10.7541/2017.133
新疆伊犁河不同生境大型底栖动物群落及其影响因素
COMMUNITY STRUCTURE AND ENVIRONMENTAL DETERMINANTS OF MACROINVERTEBRATES IN ILI RIVER
摘要
Abstract
To investigate the community structure of macroinvertebrates in the Ili River, fourteen sampling sites were selected representing four habitat types, i.e., natural habitat, damaged habitat, under-dam habitat and protected area in July 2014 and 2015. A total of 81 macroinvertebrate taxa were collected, belonging to 39 families and 10 orders, of which, 75 species (93.8％) were aquatic insects, and 2 species (2.5％) were mollusks, and 3 species (3.7％) were oligo-chaete. The natural habitat had higher density, species richness, EPT richness and biodiversity of macroinvertebrates than others, and the under-dam habitat displayed the lowest values. Results of Redundancy Analysis (RDA) explained 54.1％ of the cumulative variance of species data. Monte Carlo permutation tests for the first axis and overall canonical ordination were significant, indicating that distribution of macroinvertebrates were mainly regulated by flow rate, con-ductivity, water temperature and altitude (F=2.28—4.34, P<0.05).关键词
伊犁河/底栖动物/人为活动/环境因子/水电开发Key words
Ili River/Macroinvertebrate/Human activity/Environmental factor/Hydropower development引用本文复制引用
于帅,贾娜尔·阿汗,张振兴,李昆,孙东东,杨海军..新疆伊犁河不同生境大型底栖动物群落及其影响因素[J].水生生物学报,2017,41(5):1062-1070,9.基金项目
国家自然科学基金(U1303182)资助 Supported by the National Natural Science Foundation of China (U1303182) （U1303182）
