| 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 |
| Regression Analysis between Prosomal Width and Body Weight of 10th and 14th Instar Stages of Tachypleus tridentatus and Carcinoscorpius rotundicauda |
| 投稿时间：2014-02-26 修订日期：2014-02-26 |
| DOI： |
| 中文关键词:中国鲎 圆尾鲎 回归系数 异速生长 |
| 英文关键词:Tachypleus tridentatus Carcinoscorpius rotundicauda regression coefficient allometry |
| 基金项目:广西水产遗传育种与健康养殖重点实验室开放课题（GXKL-AQUA-2013-C-03）；广西自治区主席农业院士顾问专项 |
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| 中文摘要: |
| 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龄的中国鲎和圆尾鲎异速生长曲线的斜率-回归系数b分别为2.1883和2.2297，而14龄成鲎的回归系数b分别为3.1551和2.6501，10龄和14龄中国鲎雌、雄鲎b值分别为2.314(♀)、1.9626(♂)和3.2295(♀)、2.8674(♂)，10龄和14龄圆尾鲎雌、雄鲎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）。
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| 英文摘要: |
| 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 2.1883, 2.2297, and 3.1551, 2.6501 for 14th instar, respectively. The ‘b’ values for females (♀) and males (♂) of T. tridentatus were 2.314(♀, 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）. |
| 陈秀荔,许友卿,杨春玲,李咏梅,刘伟茹,彭金霞,彭敏,丁兆坤.2014.10龄及14龄中国鲎和圆尾鲎头胸甲宽度与体重的回归分析[J].水生态学杂志,35(3):70-77. |
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