南昌大学学报（理科版）
南昌大學學報（理科版）
남창대학학보（이과판）
JOURNAL OF NANCHANG UNIVERSITY(NATURAL SCIENCE)
2014年
1期
96-102
,共7页
郑友%胡火根%唐建清%严维辉%林刚
鄭友%鬍火根%唐建清%嚴維輝%林剛
정우%호화근%당건청%엄유휘%림강
克氏原螯虾%多元分析%形态差异
剋氏原螯蝦%多元分析%形態差異
극씨원오하%다원분석%형태차이
Procambarus clarkii%multi-variation analysis%morphological variation
采用3种多元统计方法对6个不同自然水域的克氏原螯虾群体22个性状比例参数进行差异性分析。聚类分析结果表明洪泽湖、射阳群体与其他群体差异程度较大，微山湖、长江、鄱阳湖、安徽四个群体差异程度较小。主成分分析结果表明，雌性方差贡献率群体主成分分别为35．060％、19．371％、13．714％、7．303％，累积贡献率为75．448％。雄性群体主成分分别为46．188％、13．080％、11．496％、6．785％，累积贡献率为77．549％，第二步足长和第五步长2个因素对不同地区克氏原螯虾的形态差异是有显著影响的。判别分析结果表明，雌性群体判别准确率 P1为78．9％～92．1％，P2为76．6％～90．0％，综合判别率为85．0％；雄性群体判别准确率 P1为80．0％～88．6％，P2为79．6％～90．6％，综合判别准确率为83．6％，判别准确率较高，综上结果表明不同水域的群体在形态上产生了一定的差异。
採用3種多元統計方法對6箇不同自然水域的剋氏原螯蝦群體22箇性狀比例參數進行差異性分析。聚類分析結果錶明洪澤湖、射暘群體與其他群體差異程度較大，微山湖、長江、鄱暘湖、安徽四箇群體差異程度較小。主成分分析結果錶明，雌性方差貢獻率群體主成分分彆為35．060％、19．371％、13．714％、7．303％，纍積貢獻率為75．448％。雄性群體主成分分彆為46．188％、13．080％、11．496％、6．785％，纍積貢獻率為77．549％，第二步足長和第五步長2箇因素對不同地區剋氏原螯蝦的形態差異是有顯著影響的。判彆分析結果錶明，雌性群體判彆準確率 P1為78．9％～92．1％，P2為76．6％～90．0％，綜閤判彆率為85．0％；雄性群體判彆準確率 P1為80．0％～88．6％，P2為79．6％～90．6％，綜閤判彆準確率為83．6％，判彆準確率較高，綜上結果錶明不同水域的群體在形態上產生瞭一定的差異。
채용3충다원통계방법대6개불동자연수역적극씨원오하군체22개성상비례삼수진행차이성분석。취류분석결과표명홍택호、사양군체여기타군체차이정도교대，미산호、장강、파양호、안휘사개군체차이정도교소。주성분분석결과표명，자성방차공헌솔군체주성분분별위35．060％、19．371％、13．714％、7．303％，루적공헌솔위75．448％。웅성군체주성분분별위46．188％、13．080％、11．496％、6．785％，루적공헌솔위77．549％，제이보족장화제오보장2개인소대불동지구극씨원오하적형태차이시유현저영향적。판별분석결과표명，자성군체판별준학솔 P1위78．9％～92．1％，P2위76．6％～90．0％，종합판별솔위85．0％；웅성군체판별준학솔 P1위80．0％～88．6％，P2위79．6％～90．6％，종합판별준학솔위83．6％，판별준학솔교고，종상결과표명불동수역적군체재형태상산생료일정적차이。
Morphological differences among six groups of different natural waters Procambarus clarkii were studied.Three multi-variation analysis methods with 22 morphological parameters were used.Cluster anal-ysis results showed that increased divergence degrees between Lake Hongze and Sheyang groups,and no obvious difference was found between the Lake Weishan,Yangtze River,Lake Poyang and the Anhui groups.Principal component analysis on the female ones distinguished four principal components with the contribution of 35.060%,19.371%,13.714%,7.303% and 75.448% respectively;and for the male ones, at 46.188%,13.080%,1.496%,6.785%and 77.549% respectively,the second paraeiopod length and the fifth paraeiopod length have a significant impact of morphological variations of six different waters popula-tions of Procambarus clarkia .Discriminant analysis revealed that the identification accuracy of male was 78.9%-92.1% and 76.6%-90.0%.The total discriminant accuracy was 85.0%.The identification accu-racy of female was 80.0%-88.6% and 79.6%-90.6% the total discriminant accuracy was 83.6%,for fe-males and males respectively.In conclusion,the groups of different water areas had certain differences on the morphology of the Procambarus clarkia .
