水生态学杂志2016，Vol.37Issue(3)：93-101,9.DOI:10.15928/j.1674-3075.2016.03.014
济南地区河流轮虫群落结构的时空动态研究
Spatial-temporal Dynamics of Rotifer Community Structure in the Jinan Region
摘要
Abstract
Rotifers are important indicators of water quality and widely used for environment monitoring as they are highly sensitive to environmental change.During the spring,summer and autumn of 2014,we investigated the structure and diversity of the rotifer community in waters of the Jinan region.Water quality was evaluated and the relationship between rotifer community structure and environmental factors was analyzed.The study provides data to support scientific management of water resources and water pollution control in the Jinan region.A total of 19 sam-pling sites were selected,representing each county and the Jinan urban area.Qualitative rotifer samples were ob-tained by trawling with a No.25 plankton net both horizontally and vertically at sampling sites.For quantitative roti-fer analysis,a water sampler was used to collect samples at different depths and 50 L samples were mixed and fil-tered.Sediments were concentrated to 30 mL after samples had settled 48 h.Rotifer species identification and den-sity determination were completed under a microscope.Physicochemical parameters of water at each site were deter-mined including water temperature (Temp),pH,dissolved oxygen (DO),conductivity (Cond),Ca2 +,Cl -, TD,ALK,NH3-N,CODMn ,TP and TN.A total of 38 rotifer species from 17 genera were identified with dominant species from genera Keratella and Brachionus.In spring,summer and autumn,30,17 and 9 rotifer species were recorded,respectively,with average densities of 114.4 ind /L,10 ind /L and 8.3 ind /L.Rotifer pollution indica-tors included 20 species:3 associated with oligosaprobic water,5 with oligosaprobic to β-medium-polluted water,8 with β-medium-polluted water,2 with α-medium-polluted water and 2 with β-α-medium-polluted water.Fifteen pollution indicator species were observed in spring,11 species in summer and 8 species in autumn.The number and density of pollution indicators accounted for 52.63% and 77.99% of the total number and density of the rotifer community.Chromogaster ovalis,Brachionus calyciflorus,Brachionus calyciflorus,Asplanchna brightwellii and As-planchna priodonala were the dominant rotifer species.The average Shannon-Wiener indices of the rotifer communi-ty in spring,summer and autumn were 2.67,1.38 and 1.20 respectively,and the average Pielou evenness indices were 0.66,0.41 and 0.35.Canonical correspondence analysis (CCA)showed that TN,NH3-N and Ca2 + were the main environmental factors affecting rotifer community structure in spring,CODMn in summer and TP in autumn.O-verall,water in the Jinan region is moderately polluted.关键词
济南地区/轮虫/群落结构/环境因子Key words
Jinan region/rotifer/community structure/environmental factors分类
生物学引用本文复制引用
王博涵,李晨,姜力文,陈鹏,殷旭旺,徐宗学..济南地区河流轮虫群落结构的时空动态研究[J].水生态学杂志,2016,37(3):93-101,9.基金项目
辽宁省优秀人才支持计划项目（LR2015009）；山东省水利厅、山东省财政厅“水生态文明试点科技支撑计划”（SST-WMZCJH-SD02）；济南市水生态时空变异驱动机制及自动监测模式项目；国家自然科学基金（51279005）。 （）
