马氏珠母贝壳长生长模型研究  

Study on the Growth Model of Shell Length for Pinctada martensii(Dünker)

作　　者：符世伟[1] 刘志刚[1] 王辉[1] 杜晓东[1] 

机构地区：[1]广东海洋大学水产学院,广东湛江524025

出　　处：《广东海洋大学学报》2008年第4期30-35,共6页Journal of Guangdong Ocean University

基　　金：国家科技支撑计划项目(2007BAD29B01);广东海洋大学资助项目(0412090)

摘　　要：以Cp统计量作为确定马氏珠母贝壳长最优生长模型的准则,通过Levenberg-Marquardt迭代法求出模型中各生长参数,用Brody、von Bertalanffy、Gompertz、Logistic和Richards 5个生长模型对马氏珠母贝壳长的生长进行了拟合。结果表明,在马氏珠母贝生长的第一年中,壳长生长过程遵循Brody生长模型,其壳长生长极限值为56.572 mm(43.807～69.337,95%置信区间)。Growth curve of shell length was investigated in the research by taking Pinctada martensii （DUnker） as the experimental subject, five growth models, Brody, von Bertalanffy, Gompertz, Logistic and Richards, were chosen as the candidates for fitting the growth model of shell length in Pinctada martensii with the purpose of establishing the optimum growth equation of shell length, based upon Cp criterion. Growth parameters embraced in foregoing models were estimated by Levenberg-Marquardt iteration method. The results showed that in the first year the growth of shell length of Pinctada martensii, growth of shell length conformed to the Brody model, the growth limit of shell length was 56.572mm （43.807-69.337, 95% confidence interval）. Results obtained can serve as guidelines for predictions of future changes in culture ecology, selection breeding and production of Pinctada martensii.

关 键 词：马氏珠母贝 Cp准则 壳长 生长模型 生长参数 

分 类 号：S968.316.1[农业科学—水产养殖]