摘要
为研究室温条件下中国鲎早期幼鲎的生长发育情况,于2014-2016年开展了中国鲎人工育苗及其早期幼鲎的培育研究,测定1~6龄期中国鲎幼鲎湿重、头胸部长、头胸部宽、腹部长、腹部宽、剑尾长和全长等生长指标,利用回归分析法获得了1~5龄期中国鲎幂函数回归方程,同时对湿重、头胸部长、头胸部宽、腹部长、腹部宽、剑尾长和全长等生长指标进行对数处理,获得了线性回归方程。除腹部长与头胸部宽回归方程的决定系数R2值为0.875外,其他均大于0.900,显著性均小于0.01,说明获得的回归方程拟合度较高。1~5龄期中国鲎湿重、剑尾长、全长与头胸部宽呈正生长关系,腹部宽与头胸部宽呈等速生长关系,头胸部长、腹部长和头胸部宽呈负生长关系。利用2015年人工育苗新获得的1龄期和2龄期幼鲎测定值对异速生长方程的拟合性进行了校验,同时利用新蜕壳发育成的6龄期幼鲎的测定值对异速生长方程的外推测能力进行了校验,校验结果表明:本研究获得的异速生长方程具有很好的拟合性和外推测性。
Growth of the early juvenile Tachypleus tridentatus was studied.At room temperature,T.tridentatus were artificially bred and cultivated from 2014 till 2016.The growth indices,including wet body weight,prosomal length and width,opisthosoma length and width as well as telson and whole lengths,of the fish were measured to establish power function models for the T.tridentatus of 1 st to 5 th instar age by regression analysis.The converted logarithmic growth indices were used to obtain linear regression equations,which showed a correlation coefficient,R 2,for all except that of opisthosoma length vs.prosomal width,was greater than 0.900 at P<0.01.The wet body weight and telson and whole lengths were positively allometric with the prosomal width;while the opisthosoma width,isometric with the prosomal width;and,the prosomal and opisthosoma lengths,negatively allometric with the prosomal width.Subsequently,separately measured data on T.tridentatus of 1 st to 5 th instar age as well as those of 6 th instar age were entered the equations for validation.The results indicated all models fitted well with data and were highly extrapolatable.
作者
邹丽珍
ZOU Li-zhen(Freshwater Fisheries Research Institute of Fujian Province,Fuzhou,Fujian 350002,China)
出处
《福建农业学报》
CAS
北大核心
2018年第8期787-793,共7页
Fujian Journal of Agricultural Sciences
基金
福建省科技计划项目--省属公益类科研院所基本科研专项(2014R1002-8)
福建省海洋高新产业发展专项(闽海洋[2016]24号)
关键词
中国鲎
异速生长
回归分析
Tachypleus tridentatus
allometric growth
regression analysis