不同性别马粪海胆壳形态性状对体质量的影响效果分析  

Mathematical Analysis of Effects of Morphometric Attributes on Body Weight for Sea Urchin Hemicentrotus pulcherrimus

作　　者：冷晓飞 张艳 张伟杰[2] 刘明泰[2] 经晨晨 宋坚[2] 

机构地区：[1]大连海宝渔业有限公司,辽宁大连116023 [2]大连海洋大学农业部北方海水增养殖学重点实验室,辽宁大连116023

出　　处：《水产科学》2016年第4期359-363,共5页Fisheries Science

基　　金：国家"863"计划现代农业技术领域重大项目(2012AA10A412)

摘　　要：选取大连塔河湾海域马粪海胆260枚,鉴定性别后测量了壳高(L2)、壳径(L1)和体质量(m)等经济性状,采用相关分析和通径分析方法,定量地分析了不同性别马粪海胆壳形态性状与体质量的相关关系。结果表明,塔河湾海域马粪海胆雌雄比例为1∶1,在壳性状、体质量等经济性状和高径比等生物学性状上雌雄差异不显著(P>0.05)。雌雄海胆经济性状间的相关系数均较高,其中壳径与体质量的相关系数均为最大(雌雄分别为0.960和0.956)。通径分析表明,雌雄马粪海胆壳径对体质量的直接影响(雌雄分别为0.723和0.645)均大于壳高(雌雄分别为0.280和0.362),雌雄马粪海胆壳形态性状对体质量有较为一致的影响效果。雄性马粪海胆体质量预测模型为m=1.78L1+1.32L2-75.78(r2=0.948),雌性马粪海胆体质量预测模型为m=2.17L1+1.13L2-89.05(r2=0.944),不分性别马粪海胆体质量预测模型为m=1.96L1+1.22L2-81.72(r2=0.944)。Two hundred and sixty sea urchin Heemicentrotus pulcherrimus were captured from Tahe bay coastal Dalian and their test height（L2）,test diameter（L1）and body weight（m）were measured after sex determination.The relationship between morphometric traits and body weight were quantitatively analyzed by correlation analysis and path analysis.The results showed that the sex ratio of the sea urchin was 1∶1,and there were no significant differences either in economic traits（test traits and body weight）or ecological traits（height-diameter ratio）（P0.05）.Correlation coefficients among economic traits were high in both male and female sea urchin.The maximal correlation coefficients between test diameter and body weight were observed in both male and female sea urchin（0.960 in female and 0.956 in male）.Path analysis revealed that test diameter（0.723 in female and 0.645 in male）out weighed more to body weight than to test height（for female and male respectively were 0.280and0.362）both for male and female sea urchin.Morphometric attributes on body weight for male sea urchin were consistent with the female ones.Model to predict body weight for male sea urchin was expressed as m=1.78L1＋1.32L2-75.78（r2=0.948）.Model to predict body weight for male was m=2.17L1＋1.13L2-89.05（r2=0.944）.For both genders of sea urchin,model to predict body weight was established as m=1.96L1＋1.22L2-81.72（r2=0.944）.

关 键 词：马粪海胆 性别 壳形态 体质量 通径分析 

分 类 号：S968.9[农业科学—水产养殖]