不同地理群体泥鳅形态特征的比较研究

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中图分类号 S917.4 文献标识码A文章编号 0517-6611（2025）18-0103-03doi：10.3969/j.issn.0517-6611.2025.18.022

Comparison of Morphological Characteristics of Loaches in Different Geographical Groups

KUANG Gang-qiao1，ZHAI Xu-lang²，XUEYang²etal（1.CollgeofFisheries，Southwest University，Chongqing 402460;hogqing Aquatic Products Technology Extension Station，Chongqing 401120）

AbstractBasedonmethodssuchasone-wayANOVAandpricipalcomponentfactoranalysis，morhologicalcharacteisticswerecompared among 25Oloachesfromfournaturalpopulations in theYangtzeRiversystemandtheYellwRversystem，as wellasoneculturedopulation， basedontheixtealmeasuableaishultssowdtatthreresigifcantorholoicalfrecesmngthfouratualopula tionsfloachessuchasouthhiskerlength（MBL）andtailstalklength（CPL）Theprincipalcomponentanalysissowedthatthefouat uralpopulationsoflachescanbedividedintotomajogroups：heupperandmidlereachesoftheYagtzeRiverandthelowerndmiddle reachesoftheloivearesigiicantdiferesineetealophweeaturalnddopuatiosflce researchresultsidicatetattheextealmorpologofloachsayundergspecificadaptivechangesinasortperiodoftimeudercetain environmental conditions.

KeyWordsLoach;Morphological differences;Yangtze River;YellowRiver

泥鳅（Misgurnusanguillicaudatus）隶属鲤形目（Cyprini-formes）鳅科（Cobitidae）泥鳅属（Misgurnus），广泛分布于我国各地河流、水田、沟渠和湖库等淡水水域[]。（剩余5134字）