| 我国南海4个青蛤野生群体的形态差异分析 |
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| 引用本文： | 古恒光,刘建勇,杨国宏.我国南海4个青蛤野生群体的形态差异分析[J].广东海洋大学学报,2010,30(3):1-5. |
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| 作者姓名： | 古恒光 刘建勇 杨国宏 |
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| 作者单位： | 广东海洋大学水产学院,广东,湛江,524025 |
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| 基金项目： | 广东省海洋与渔业局科技推广专项项目 |
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| 摘 要： | 用8个形态性状比较我国南海4个野生青蛤群体间的形态变异。聚类分析表明,湛江群体和汕头群体的形态较接近,海口群体的趋异最大。主成分分析表明,主成分1、2、3的贡献率分别为26.441%、21.104%、15.884%,累计贡献率为63.428%。逐步判别分析结果显示,4个群体形态差异显著(P<0.01)。建立了4群体判别函数,其判别准确率P1为51.4%～71.4%,判别分析准确率P2为60%～75.8%,4群体的综合判别率为64.3%。Mantel-test检验结果表明,我国南海青蛤不同地理群体的欧式距离与地理距离没有明显的相关性(r=0.4227,P=0.3910)。
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| 关 键 词： | 青蛤 地理群体 形态差异 主成分分析 聚类分析 判别分析 |
Analysis on Morphological Variations of Four Wild Populations of Cyclina sinensis from the South China Sea |
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| GU Heng-guang,LIU Jian-yong,YANG Guo-hong.Analysis on Morphological Variations of Four Wild Populations of Cyclina sinensis from the South China Sea[J].Journal of Zhanjiang Ocean University,2010,30(3):1-5. |
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| Authors: | GU Heng-guang LIU Jian-yong YANG Guo-hong |
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| Institution: | GU Heng-guang,LIU Jian-yong,YANG Guo-hong(Fisheries College of Guangdong Ocean University,Zhanjiang 524025,China) |
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| Abstract: | Based on eight morphological characters of four populations of Cyclina sinensis from the South China Sea by means of multivariate morphometrics,the morphological variations of the four populations were studied.The results of Cluster analysis and Principal component analysis showed that clams from Zhanjiang and Shantou population were relatively similar in morphology,whereas Haikou population differed greatly from other populations in morphology.Through principal component analysis,three principal components... |
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| Keywords: | Cyclina sinensis geographical populations morphological variation cluster analysis principal component analysis multivariate discrimination analysis |
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