文章摘要
张永普.不同地理种群泥蚶的形态差异与判别分析[J].水产学报,2004,28(3):
不同地理种群泥蚶的形态差异与判别分析
Morphological variations and discriminant analysis of different geographical populations of Tegillarca granosa
投稿时间:2014-03-15  修订日期:2014-03-15
DOI:
中文关键词: 泥蚶 种群 形态差异 判别分析
英文关键词: Tegillarca granosa  population  morphological variation  discriminant analysis
基金项目:浙江省海洋与渔业局海洋开发科技基金,浙江省温州市科技计划
作者单位地址
张永普 温州师范学院生命与环境科学学院 温州师范学院生命与环境科学学院
摘要点击次数: 2288
全文下载次数: 1109
中文摘要:
      泥蚶(Tegillarca granosa Linnaeus)为印度椢魈洋海域的广温广盐性贝类,在我国主要分布于山东以南沿海,是我国沿海滩涂的主要经济养殖贝类.有关泥蚶人工育苗、繁殖与生长和生理生化等方面的研究已有较多报道[1-9],但种内形态特征的地理变异未见报道.本文利用多变量形态度量学方法对我国山东、浙江、广西和韩国4个地理种群泥蚶的形态变异进行了比较研究,探讨了泥蚶种内的形态变异特点与地理分化规律、并建立判别函数,为泥蚶地理种群的识别、种质保护和良种选育提供理论依据.
英文摘要:
      Based on nine morphological characters of populat ions of Tegillarca granosa from Guangxi, Zhejiang, Shandong , of China and Lishui, Korea, multivariate morphometrics was used to invest igate their morphological variations among the four different geographical populations. ANOVA indicated that four populations showed signif icant morphological variations respect ively ( P < 0. 01) . In the result of principal component analysis, two principal components ( PC) were constructed by factor loading, in which the first principal component ( PC1) was affected by shell width, shell height and shell moisture weight, and the PC2 was affected by hinge tooth, and the contributory ratios of two PC were 41. 02% and 20. 41%, respectively. The results of principal component analysis and cluster analysis revealed that the morphological characters of Tegillraca granosa from Zhejiang population and Shandong population were similar. The discriminant functions of four populations were established, and the discriminant accuracy was 90. 80%, 80. 89%, 71. 76% , and 97. 46% respectively, so the average discriminant accuracy was 86. 23%.
HTML   查看全文   下载PDF阅读器
关闭

手机扫一扫看