| 长江_辽河_瓯江中华绒螯蟹种群的形态判别 |
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| 引用本文： | 许加武.长江_辽河_瓯江中华绒螯蟹种群的形态判别[J].水产学报,1997,21(3):269-274. |
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| 作者姓名： | 许加武 |
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| 作者单位： | [1]农业部水产增养殖生态,生理重点开放实验室 [2]上海水产大学基础部,生理重点开放实验室 |
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| 摘 要： | 为比较不同水系中华绒兀自蟹种群的形态特点，建立了判别中华绒螯蟹水系来源的方法，以辽河、长江、瓯江中华绒螯蟹成蟹的三个各群为研究对象，测量了代表其形态特征的２４个度量性状，处理后得４８个形态特征参数；然后用判别的方法筛了其中能提供附加信息的６个参数，并建立了Ｂａｙｅｓ判别函数；最后对判别进行拟合，拟合概率雄蟹为９２．３９％，雌蟹为８９．３７％。用逐步判别的方法对中华绒螯蟹的不同种群进行比较并判别其水
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| 关 键 词： | 河蟹 中华绒螯蟹 种群 判别函数 形态判别 |
| 收稿时间： | 5/8/2014 12:00:00 AM |
| 修稿时间： | 5/8/2014 12:00:00 AM |
Morphological identification of population of Eriocheir sinensis from Changjiang, Liaohe and Oujiang Rivers |
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| XU Jia-Wu.Morphological identification of population of Eriocheir sinensis from Changjiang, Liaohe and Oujiang Rivers[J].Journal of Fisheries of China,1997,21(3):269-274. |
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| Authors: | XU Jia-Wu |
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| Affiliation: | Laboratory of Ecology and Physiology in Aquaculture,Shanghai fisheries University,200090 |
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| Abstract: | In order to compare the morphological characters of three populations of Chinsemitten crab (Eriocheir sinensis ) from Changjiang, Liaohe and Oujiang rivers and to establish a method to identify their origin, firstly, 24 meassurable verialbles,representing their morphological characters,were measured, after size corrected,48 morphological parameters were abtained. Secondly,6 different parameters for male Chinese mitten crab and female Chinse mitten crab,which shows higher contribution for identification, were selected by the method of stetwise discrimination, and Bayes discriminant functions were estadlished. At last, the discriminant results were fitted, the fitted probability of male and female Chinese mitten crab is 92.39% and 89.37%,respectively. It is feasible to compare the different river populations of Chinse mitten crab and to identify their origin by the method of stepwise discrimination. |
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| Keywords: | Eriocheir sinensis Population Stepwise discrimination Discriminant function Fitted probability |
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