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当前位置: 首页 > 文章 > 10龄及14龄中国鲎和圆尾鲎头胸甲宽度与体重的回归分析 水生态学杂志 2014,35 (3) 73-80
Position: Home > Articles > Regression Analysis between Prosomal Width and Body Weight of 10th and 14th Instar Stages of Tachypleus tridentatus and Carcinoscorpius rotundicauda Journal of Hydroecology 2014,35 (3) 73-80

10龄及14龄中国鲎和圆尾鲎头胸甲宽度与体重的回归分析

作  者：
许友卿;刘伟茹;陈秀荔;彭金霞;龚竹林;彭敏;杨春玲;丁兆坤;李咏梅
单  位：
广西水产遗传育种与健康养殖重点实验室;广西大学水产科学研究所
关键词：
中国鲎;圆尾鲎;回归系数;头胸甲宽度;体重
摘  要：
为了研究鲎形体与体重之间的关系,进一步探讨其生长特性,分别测定了中国鲎(Tachypleus tridentatus)和圆尾鲎(Carcinoscorpius rotundicauda)14龄成鲎和10龄幼鲎及不同性别的形态参数(头胸甲宽度及体重)。结果表明,中国鲎和圆尾鲎14龄成鲎和10龄幼鲎以及雌、雄的头胸甲宽度与体重均表现为正相关(R2>0.88);10龄中国鲎和圆尾鲎异速生长曲线的斜率-回归系数b分别为2.2263和2.1883,而14龄成鲎的回归系数b分别为3.1551和2.6501;10龄和14龄雌、雄中国鲎的b值分别为2.2314(♀)、1.9626(♂)和3.2295(♀)、2.8674(♂),10龄和14龄雌、雄圆尾鲎的b值分别为2.5342(♀)、1.9547(♂)和2.7791(♀)、2.1803(♂),b值均大于1,表明体重增长率大于头胸甲宽度的增长率,处于正生长期,且雌鲎的异速生长率均大于雄鲎;F检验表明,中国鲎和圆尾鲎10龄及14龄不同性别的头胸甲宽度与体重存在极显著的线性关系(P<0.01)。
译  名：
Regression Analysis between Prosomal Width and Body Weight of 10th and 14th Instar Stages of Tachypleus tridentatus and Carcinoscorpius rotundicauda
作  者：
XU You-qing;LIU Wei-ru;CHEN Xiu-li;PENG Jin-xia;GONG Zhu-lin;PENG Min;YANG Chun-ling;DING Zhao-kun;LI Yong-mei;Institute for Fishery Sciences,Guangxi University;The Key Laboratory of Aquatic Genetic Breeding and Health Cultivation of Guangxi,Guangxi Institute of Fisheries;
关键词：
Tachypleus tridentatus;;Carcinoscorpius rotundicauda;;regression coefficient;;prosomal width;;body weight
摘  要：
To investigate the relationship of body size and body weight of T. tridentatus and C. rotundicauda,the morphometric parameters including prosomal width and body weight were measured for males and females in 10th and 14th instar stages. The allometric analysis revealed that both 10th and 14th instars of T. tridentatus and C. rotundicauda exhibited a very high degree of positive correlation between prosomal width and body weight( R2> 0. 88). The regression coefficient( b) for T. tridentatus and C. rotundicauda in 10th instar were 2. 2263, 2. 1883,and 3. 1551,2. 6501 for 14th instar,respectively. The "b"values for females( ♀) and males( ♂) of T. tridentatus were 2. 2314( ♀,10th),1. 9626( ♂,10th),3. 2295( ♀,14th),2. 8674( ♂,14th),and the values for C. rotundicauda were 2. 5342( ♀,10th),1. 9547( ♂,10th),2. 7791( ♀,14th),2. 1803( ♂, 14th) respectively,indicating that the weight gain was faster than the growth of prosomal width and females showed stronger positive allometry than males. Meanwhile,F test results showed that significant linear relationship was observed between the prosomal width and body weight of 10th and 14th instars of T. tridentatus and C. rotundicauda of both sexes( P < 0. 01).

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