基于形态框架数据的淞江鲈种群鉴别(英文)  

INTRASPECIFIC IDENTIFICATION OF TRACHIDERMUS FASCIATUS(SCORPAENIFORMES,COTTIDAE)BASED ON TRUSS NETWORK DATA

作　　者：王金秋[1] 程起群[2] 梁鸿子[1] 罗武松[1] 

机构地区：[1]复旦大学生命科学学院遗传工程国家重点实验室,上海200433 [2]中国水产科学研究院东海水产研究所农业部海洋与河口渔业资源及生态重点实验室,上海200090

出　　处：《动物分类学报》2011年第3期512-517,共6页Acta Zootaxonomica Sinica

基　　金：supported by the National Natural Science Foundation of China(30600456);Commission of Science and Technology of Shanghai,China(08391910300,073219N11);Special Research Fund for the National Non-profit Institutes(East China Sea Fisheries Research Institute,2008Z02)

摘　　要：采用形态框架数据阐明了中国3个现存的淞江鲈地理种群的形态差异。每条鱼测量22个形态度量参数,用Burnaby的多变量方法校正形态度量参数,采用聚类和判别分析来区别种群的差异。结果显示:1)3个地理种群可以分成两组,第1组包括青龙河种群和富春江种群,第2组包括鸭绿江种群;2)根据F-remove值,挑选出最大的5个形态参数:D(2-3)、D(7-9)、D(6-5)、D(6-8)、D(2-1),用挑选后的5个形态参数进行判别分析的判别准确率达100%,显示这3个地理种群是形态上可辨别的种群。地理隔离和环境因子也许是淞江鲈种群形态差异的主要影响因素。虽然形态度量对于判别淞江鲈的种群有效,但对于其种群结构的进一步确认研究是必要的。Truss network data were used in order to clarify the morphological differences of three extant populations of Trachidermus fasciatus in China.Twenty-two morphometric measurements were made for each individual.Burnaby＇s multivariate method was used to obtain size-adjusted shape data.The cluster analysis and discriminant analysis were used to discriminate among populations.The results indicated：1）the three populations were clustered into two distinct groups;the first group included the populations of T.fasciatus living in Qinglong He and in Fuchun Jiang,the last one included the population in Yalu Jiang;2）based on F-remove value,five morphological index,i.e.,D（2-3）,D（7-9）,D（6-5）,D（6-8）,and D（2-1）,were selected into model.Discriminant analysis with these selected 5 morphological parameters showed that the identification accuracies were all 100 %.We concluded that these are three morphologically distinguishable populations of T.fasciatus.Reproductive isolation,genetic drift and environmental factors can cause diversification in body shape among different T.fasciatus populations.Though the present morphometric measurements discriminated the different populations of T.fasciatus,further verification of the population structure may be essential.

关 键 词：淞江鲈 形态 框架数据 多变量分析 

分 类 号：Q959.4[生物学—动物学]