| 摘要: |
| 运用多变量形态度量学分析方法, 对我国沿海的四个鲻鱼群体110 个个体的形态变异进行了分析。聚类分析和主成分分析结果表明, 位于我国南部沿海的广东湛江群体(ZJ)与福建厦门群体(XM)形态最为接近, 位于北部沿海的河北塘沽群体(HB)与山东青岛群体(QD)的形态最为接近; 而南、北部群体间的趋异程度较大, 有一定程度的形态分化。主成分分析前3 个主成分对不同群体间总变异方差的贡献率分别为: 50.00%、12.16%、11.10%, 累积贡献率为73.25%。主成分分析结果表明, 四个鲻鱼群体在形态上的差
|
| 关键词: 鲻鱼, 群体, 形态差异, 框架分析 |
| DOI：10.11693/hyhz200905008008 |
| 分类号: |
| 基金项目:国家“863”项目资助, 2006AA09418 号; 国家自然科学基金资助项目, 30771659 号 |
|
| MORPHOLOGICAL VARIATION OF GREY MULLET MUGIL CEPHALUS IN DIFFERENT GEOGRAPHICAL POPULATIONS ALONG CHINA COAST |
|
LIU Jian-Yong1, YANG Ting-Bao2
|
|
1.School of Life Sciences, Sun Yat-Sen University,Fisheries College of Guangdong Ocean University;2.School of Life Sciences, Sun Yat-Sen University
|
| Abstract: |
| Morphological variations among four geographical populations of Mugil cephalus were analyzed using three multivariation analysis methods using 23 morphometric proportional parameters. The results of clusters analysis and principal component analysis show similar morphological characters within populations, despite that the morphology between northern and southern populations is quite different. The contribution of height and length of the chest and tail to the total variances is the greatest shown by principal component analysis; and the total discriminant accuracy is 99.1% indicated by discriminant analysis. All the results show the four populations can be identified using three multivariation analysis methods as among-population differences are obvious.
|
| Key words: Mugil cephalus, Population, Morphological variation, Truss network |
