河南理工大学学报（自然科学版）2025，Vol.44Issue(4)：151-159,9.DOI:10.16186/j.cnki.1673-9787.2023050028
晋城市沁河流域秋季浮游动物群落结构特征及其与环境因子的关系
Characteristics of zooplankton community structure and its relationship with environmental factors in autumn in Qinhe River Basin,Jincheng Region
摘要
Abstract
Objectives To clarify the spatial distribution patterns of zooplankton and their key driving factors,Methods a comprehensive survey was conducted at 61 sampling sites along the Qinhe and Danhe rivers in Jincheng City,Shanxi Province,during October-November 2020,with simultaneous analysis of zooplank-ton communities and environmental parameters.Results A total of 37 zooplankton species belong to 4 phy-lum were identified in this study,with Rotifera and Protozoa being the most species-rich groups,account-ing for 48.6%and 32.4%of the total species richness,respectively.There are two dominant species in the main stream of Qinhe River and its tributary Danhe River,namely Arcella vulgaris and Difflugia globulosa.There are three species with differential advantages,namely Difflugia pyriformis(Qinhe mainstream),Cy-clops strennus(Danhe tributary),and Nauplius larvae(Danhe tributary).In the Jincheng section of the Qinhe River,zooplankton density ranged from 0.4 to 16 ind./L(predominantly Protozoa),while biomass varied between 0.01 and 164.02 μg/L(with Copepoda being the major contributor).The density of zoo-plankton in Jincheng region of the Qin River ranged from 0.4 to 16 ind./L,with the highest density of Proto-zoa,while the biomass of zooplankton ranged from 0.01 to 164.02 μg/L,with Copepoda being the major contributor.The density and biomass of zooplankton atthose sites in the middle-lower reaches of the Dan River were significantly highest.The Shannon-Wiener diversity index(H')of zooplankton in the Jincheng section of the Qinhe River ranged from 0.28 to 2.94,with the mean value 1.28.Water quality of most sites in the Qin River and upper-middle reaches of the Dan River were classified into α-medium pollution level.The dominant species were Arcella vulgaris and Difflugia globulosa at those sites.Water quality of the sites in the middle-lower reaches of the Dan River were classified into β-medium pollution level,with Cyclops strennus and Nauplius larvae serving as the dominant indicator species.The CCA(canonical correspon-dence analysis)showed that the main factors affected the zooplankton in the Qin River in Jincheng region were chloride,total nitrogen,nitrate and water temperature.Difflugia globulosa,Arcella vulgaris and Difflu-gia pyriformis these dominant protozoan species were mainly affected by nitrate,ammonia and chemical oxygen demand,while Cyclops strennus and Nauplius were significantly positive correlated with chloride and sulfate.To mitigate and reverse the ongoing degradation of the Qinhe River's Jincheng section,it is necessary to reduce the discharge of wastewater from nitrogenous fertilizer,mining,chemical material manufacture,and increase forest and grass land in the riparian areas.Conclusions The findings provide critical references for water quality assessment,and sustainable utilization and conservation of water re-sources in the Qinhe River Basin of Jincheng City.关键词
浮游动物/优势种/环境因子/典范对应分析Key words
zooplankton/dominant species/environmental parameters/canonical correspondence analysis分类
农业科技引用本文复制引用
李艳利,李艳粉,李林霞,高梦蝶,王明仕..晋城市沁河流域秋季浮游动物群落结构特征及其与环境因子的关系[J].河南理工大学学报（自然科学版）,2025,44(4):151-159,9.基金项目
国家自然科学基金资助项目(U1704241) （U1704241）
河南省科技攻关计划项目(232102320141) （232102320141）
水资源与水电工程科学国家重点实验室开放基金项目(2022SWG01) （2022SWG01）
