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东海宽体舌鳎的个体生殖力
引用本文:倪海儿.东海宽体舌鳎的个体生殖力[J].水产学报,2000,24(4):318-323.
作者姓名:倪海儿
作者单位:宁波大学海洋与水产系,浙江宁波 315211
基金项目:浙江省自然科学基金资助项目(389295)
摘    要:对宽体舌鳎的个体生殖力的分布特征、变化规律及其与各体征指标的关系进行了研究,结果表明个体绝对生殖力r、相对生殖力r/L、r/W均服从正态分布;个体生殖力r、r/L与全长、体高等各度量指标均呈幂函数关系,与体重、纯重等各称量指标均呈线性相关,而r/W除了与表明性腺成熟程度的指标(性腺重、成熟系数)线性相关外,与其它各体征指标均不相关;由典型相关分析得到r主要与鱼体的大小有关,而r/L则主要与鱼的体型有关;4龄前个体生殖力r、r/L都随着鱼的年龄的增长而增加,而r/W则不随鱼的年龄而变化。

关 键 词:宽体舌鳎  个体生殖力  体征指标  东海
文章编号:1000-0615(2000)04-0318-06
收稿时间:2014/4/16 0:00:00
修稿时间:2000年1月17日

Individual fecundity of Cynoglossus robustus from the East China Sea
NI Hai er.Individual fecundity of Cynoglossus robustus from the East China Sea[J].Journal of Fisheries of China,2000,24(4):318-323.
Authors:NI Hai er
Institution:Department of Ocean and Fisheries, Ningbo University, Ningbo 315211,China
Abstract:Based on biological data obtained from the specimens of Cynoglossus robustus from the East China Sea in 1994, the distribution, variant regularity and relationship with body character indexes of individual fecundity were studied. The results were summarized as follows: 1) The individual absolute fecundity r and relative fecundity r / L , r / W are all distributed normally. 2) Both the individual absolute fecundity r and relative fecundity r / L are linearly and directly correlat ive to the character indexes by weight . The relationships between the individual fecundity r , r / L and the length..s character indexes can be expressed in power functions, while the individual relative fecundity r / W has no significant relationship with these body character indexes except gonad weight and maturat ion coeff icient. 3) Younger than 4 years old , both r and r / L increase with age, but r / W shows no significant difference in various age groups. 4) Interrelations of two sets of variates, ( r , r/ L , r / W) and ( body length, body height, maturation coeff icient) , are developed by canonical correlations. They show that r is mainly dependent on the size of f ish and r / L depends on the body shape of fish.
Keywords:Cynoglosus robustus  individual fecundity  body character indexes  East China Sea
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