海洋科学2011，Vol.35Issue(10)：91-95,5.
琴文蛤形态性状对体量的影响效果分析
Mathematical analysis of the correlations between the morphometric attributes and body weight Meretrix.lyrata
摘要
Abstract
Data for this study were collected from 87 M. lyrata in Guangxi province. The shell length （x1）, the shell height（x2）, the shell width （x3）, the outer ligament length （x4）, and the body weight （y） were measured. The correlation coefficient matrix was constructed. The preceding four morphometric characters were used as independent variables, and the body weight was used as a dependent variable for calculations of path analysis, path coefficients （Pi）, determination coefficients （di） and correlation index （R2）. It was found that all four correlations between the four morphological characters and the weight were significant（P〈 0.01）. Outer ligament length （X4, P1=0.3593） and shell width（X3, P2=0. 348） were the key effective factors, bearing predominant, direct effect and determinacy on the live body weight. The result of high correlation index （R2= 0.943） clearly indicated that the path coefficient analysis could reveal the truthful relationship between the independent variables and the dependent variable. The multiple regression equation for estimation of live body weight was y=-32.2882＋0.2604x1＋0.2991x2＋ 0.6737x3＋0.5175x4 This paper provides theoretical evidence and appropriate measurement targets for breeding of Meretrix Lyrata.关键词
琴文蛤（Meretrix/lyrata）/形态性状，体重/相关分析/通径分析Key words
Meretrix lyrata/morphmetric attribute/body weight/Correlation analysis/path analysis分类
农业科技引用本文复制引用
刘博,滕爽爽,邵艳卿,柴雪良,王侃..琴文蛤形态性状对体量的影响效果分析[J].海洋科学,2011,35(10):91-95,5.基金项目
基金项目：浙江省科研院所专项项目 （）
温州市科技兴海项目 （）
国家贝类产业技术体系项目 （）
