摘要
应用多元分析方法,采用体质量和10个形态性状为指标对中国沿海陵水、北海、惠来、诏安、厦门5个地理群体的日本囊对虾(Marsupenaeus japonicus)进行了比较分析,结果表明,日本囊对虾雌雄个体间形态差异显著(P<0.05);而同一性别不同地理群体间的形态以陵水、北海群体间较为相近,厦门、诏安群体间较为相近,但各地理群体间差异不显著(P>0.05);雌性个体的体长、头胸甲宽和雄性个体的体长、第六腹节宽分别与体质量的相关系数达到了极显著水平(P<0.01);雌性日本囊对虾的体长(X2)、头胸甲宽(X4)对体质量(Y)的最优多元回归方程为:Y=-151.737+9.235X2+23.194X4,雄性日本囊对虾体长(X2)、第六腹节宽(X9)对体质量(Y)的最优多元回归方程为:Y=85.280+5.222X2+43.656X9。以上结果为日本囊对虾的选择育种提供了理想的测度指标。
Body weight and ten morphological traits in five geographic groups of Marsupenaeus japonicus in coastal areas of China were compared using multivariate analysis method.Results show that there were significant variations between male and female M.japonicus while no significant variations between different geographic populations.For the same gender,populations from Hainan and Beihai were closely linked and those from Xiamen and Zhaoan were closely linked.Significant correlation coefficients（P0.01）were found between body weight（Y）and morphological traits of body length（X 2 ）and carapace width（X 4 ）for females,and between body weight（Y）and body length（X 2 ） and the sixth abdominal segment width（X 9 ）for males,which are ideal indicators of measurement for M.japonicus aquaculture.The multiple regression equations were establised as Y=-151.737＋9.235X 2 ＋23.194X 4 for females and Y=85.280＋5.222X 2 ＋43.656X 9 for males.
出处
《中国水产科学》
CAS
CSCD
北大核心
2010年第3期478-486,共9页
Journal of Fishery Sciences of China
基金
农业部公益性行业(农业)科研专项资助项目(200803012)
福建省科技厅重大项目(2009N3011)
关键词
日本囊对虾
地理群体
形态差异
多元回归分析
Marsupenaeus japonicus
population
morphological variation
multiple regression analysis
