中国海洋湖沼学报（英文版）2012，Vol.30Issue(1)：47-58,12.DOI:10.1007/s00343-012-0150-y
Rotifer community structure and assessment of water quality in Yangcheng Lake
Rotifer community structure and assessment of water quality in Yangcheng Lake
摘要
Abstract
Rotifer community structure was investigated in Yangcheng Lake in 2008.Dominant species and species diversity indices were determined and QB/T was used to assess water quality.The annual average density and biomass of the rotifers in Yangcheng Lake was 2 894± 1 006 ind./L and 12.47± 10.28 mg/L,respectively.The highest densities were observed in the western portion of the lake in March,but the highest biomass occurred in inflowing creeks in September.Within a year of monitoring in Yangcheng Lake,93 species were identified and the dominant species were found to be Polyarthra trigla,Brachionus angularis,Keratella cochlearis,Keratella valga,Brachionus calyciflorus,and Filinia major.Of the species recorded,75 were pollution indicator species.Density and biomass exhibited significant positive correlations with water temperature (R=0.209,P=0.003; R=0.446,P=0.000),but the peak density showed two lags in response to chl a.According to the Jaccard similarity index (SJ),the greatest similarity among dominant species occurred between creeks and the eastern part of the lake.The annual average Shannon-Wiener diversity index H',Margalef richness index D and Pielou evenness index J were 1.96±0.34,1.61 ±0.50and 0.77±0.10,respectively.In all four areas of Yangcheng Lake,β- mesosaprobic species comprised the largest share of pollution indicator species.These data suggest that Yangcheng Lake is mesosaprobic.关键词
rotifer/density/biomass/water qualityKey words
rotifer/density/biomass/water quality引用本文复制引用
CHEN Lijing,LIU Qiao,PENG Ziran,HU Zhongjun,XUE Junzeng,WANG Wu..Rotifer community structure and assessment of water quality in Yangcheng Lake[J].中国海洋湖沼学报（英文版）,2012,30(1):47-58,12.基金项目
Supported by the Scientific Special Fund of Commonweal Industry (Agriculture) of Finance Ministry (No.ayhyzx07-045),the Key Discipline Projects of Shanghai (No.S30701),and the Doctor Startup Projects of Shanghai Ocean University （Agriculture）
