作　　者： ; ; ;

机构地区： 广东海洋大学水产学院

出　　处： 《广东海洋大学学报》 2011年第3期16-24,共9页

摘　　要： 为检验不同模型对马氏珠母贝红壳色选育系的生长发育拟合效果,分别采用von Bertalanffy、Gompertz、Logistic和Brody 4种非线性生长模型对红壳色选育系壳长、壳宽、壳高等形态性状和重量性状的生长发育进行拟合,通过Levenberg-Marquardt迭代法求出模型中各生长参数,结合各参数的最优值,得出拟合效果最佳的生长模型。结果表明,在马氏珠母贝红壳色选育系的第一年半生长过程中,Brody模型为壳长、壳宽与壳高的最优生长模型,von Bertalanffy模型为体重的最优生长模型,分别有效地拟合了马氏珠母贝红壳色选育系早期生长发育的累积生长曲线。 In order to test the fitting effect of different growth models on the growth and development of the selected lines of red shell colored Pinctada martensii Dunker,four non-linear growth models,von Bertalanffy,Gompertz,Logistic and Brody,were adopted to fit the morphological traits of red shell color（such as： shell length,shell width and shell height）,growth and development traits of weight respectively.According to Levenberg-Marquardt iteration method,the growth parameters of each model were obtained.And the best fitting growth model have been chosen according to the optimal value of each parameter.The results showed that： in the first half growing year,Brody model is the optimal growth model of the shell length（SL）,shell width（SB） and shell height（SH）,while von Bertalanffy model is the optimal growth model of body weight（TW）.They are effectively fitted for the early cumulative growth curve of the selected lines of red shell colored Pinctada martensii Dunker.

关 键 词： 马氏珠母贝 生长模型 生长参数 北部湾

领　　域： [农业科学] [农业科学]