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梁子湖、鄱阳湖和淤泥湖团头鲂的形态学比较
引用本文:曾 聪,阎里清,高泽霞,曹小娟,钱雪桥,王卫民.梁子湖、鄱阳湖和淤泥湖团头鲂的形态学比较[J].华中农业大学学报,2012,31(1):88-94.
作者姓名:曾 聪  阎里清  高泽霞  曹小娟  钱雪桥  王卫民
作者单位:1. 华中农业大学水产学院/农业部淡水生物繁育重点实验室/农业动物遗传育种与繁育教育部重点实验室,武汉,430070
2. 湖北省漳河水库水产公司,荆门,448156
3. 广东海大集团股份有限公司,广州,511400
基金项目:现代农业产业技术体系建设专项(CARS-46-05)、中央高校基本科研业务费专项资金(2011PY023)
摘    要:对团头鲂的3个种质资源区(梁子湖、鄱阳湖和淤泥湖)群体的可量性状和可数性状进行了多元统计分析。对可数性状的方差分析结果表明,3个团头鲂群体在侧线鳞数、侧线上鳞数、侧线下鳞数、胸鳍鳍条数以及臀鳍鳍条数上存在显著性差异;以体长作为协变量对可量性状进行的协方差分析显示,3个团头鲂群体在全长、体高、头长、头宽、尾柄长、尾柄高、背前区长和腹鳍前长存在显著性差异。对可量性状建立判别函数以及对可量性状平均值进行聚类分析表明梁子湖团头鲂与鄱阳湖团头鲂在外部形态上更为相似。主成分分析构建了3个主成分,其贡献率分别为39.78%、22.63%和6.53%,累计贡献率为68.95%。多元统计分析显示梁子湖群体和淤泥湖群体之间的形态差异最大,而梁子湖和鄱阳湖的比较相似。通过计算变异系数,根据Mayr等提出的75%规则,认为它们的形态差异是种内不同地理种群的差异。

关 键 词:团头鲂  种群  形态学  多元分析  梁子湖  鄱阳湖  淤泥湖
收稿时间:2010/12/1 0:00:00

Comparison of morphology parameters of blunt snout bream(Megalobrama amblycephala Yih) among Liangzi Lake,Poyang Lake and Yuni Lake
ZENG Cong,YAN Li-qing,GAO Ze-xia,CAO Xiao-juan,QIAN Xue-qiao,WANG Wei-min.Comparison of morphology parameters of blunt snout bream(Megalobrama amblycephala Yih) among Liangzi Lake,Poyang Lake and Yuni Lake[J].Journal of Huazhong Agricultural University,2012,31(1):88-94.
Authors:ZENG Cong  YAN Li-qing  GAO Ze-xia  CAO Xiao-juan  QIAN Xue-qiao  WANG Wei-min
Institution:1.College of Fisheries,Huazhong Agricultural University/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education,Wuhan 430070,China; 2.Hubei Zhanghe Reservoir Fishery Company,Jingmen 448156,China; 3.Animal Husbandry and Fisheries Research Center of Haid Group Co.,Ltd,Guangzhou 511400,China
Abstract:Blunt snout bream(Megalobrama amblycephala) is a widespread and one of the main aquaculture species in China.In present study,through univariate and multivariate analysis,we compared the external morphology of M.amblycephala from three different locations(Liangzi,Poyang and Yuni Lake).The results from one-way ANOVA and one-way analysis of covariance showed significant differences(P<0.05) in all the morphological parameters among the three populations,except for DRC,CRC,HD,DL,AL,PRPD and ND.We observed two discriminant functions among M.amblycephala from three lakes and these were more accurate between Yuni and Liangzi populations.In the principal component analysis(PCA),three principal components were constructed and the related contribution ratios were 39.78%,22.63% and 6.53%,respectively,with the cumulative contribution ratio of 68.95%.The multivariate analysis indicated that morphological variation between Liangzi and Yuni populations was greater,while Liangzi and Poyang populations were more similar in morphology.According to Mayr’s 75% rule,the differences among these three populations were still within the population level.
Keywords:Megalobrama amblycephala  populations  external morphology  multivariate analysis  Liangzi Lake  Poyang Lake  Yuni Lake
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