齿纹蜒螺的形态性状对体质量的影响分析  

Effect of Morphometric Traits on Body Weight in Clam Nerita yoldi

作　　者：柒壮林[1,2] 王一农[1] 陈德云[1] 李云航[1] 

机构地区：[1]宁波大学生命科学与生物工程学院,浙江宁波315211 [2]南京农业大学动物科技学院,江苏南京210095

出　　处：《水产科学》2011年第8期505-508,共4页Fisheries Science

基　　金：宁波市科技局项目(2008C50027)

摘　　要：随机采集了浙江省舟山西轩岛海滨的齿纹蜒螺197个,测量了壳长(x1)、壳宽(x2)、壳高(x3)及体质量(y)。分析了各参数间的相关系数。研究结果表明,齿纹蜒螺的4个参数相互间均达到显著性水平(P<0.01),壳长对体质量的影响最大,是影响体质量的主要因素。多元回归分析剔除了壳高(不显著变量),建立了壳长和壳宽对体质量的多元回归方程:y=-2.434+0.155x1+0.063x2(x1<0.01,x2<0.05)。The shell length（x1）,shell width（x2）,shell height（x3）,and body weight（y）were measured and relationships among them were evaluated in 197 samples of clam Nerita yoldi collected randomly at Xixuan island,Zhoushan City,Zhejiang province.The results showed that there were significant levels among the 4 parameters（P 0.01）,in which the shell length showed the maximal effect on body weight.The multiple regression equation to estimate weight was expressed as y =-2.434 ＋0.155 x1 ＋0.063 x2（x1 0.01,x2 0.05） by multiple regression analysis,excluding the shell height that was not significant variables.

关 键 词：齿纹蜒螺 形态性状 分析 

分 类 号：S917.4[农业科学—水产科学]