| 中国长江与荷兰野生中华绒螯蟹的头胸甲形态特征比较 |
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| 引用本文： | 姜晓东,成永旭,潘建林,李晓东,吴旭干.中国长江与荷兰野生中华绒螯蟹的头胸甲形态特征比较[J].淡水渔业,2020(1):38-43. |
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| 作者姓名： | 姜晓东 成永旭 潘建林 李晓东 吴旭干 |
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| 作者单位： | 上海海洋大学农业农村部淡水种质资源重点实验室;江苏省淡水水产研究所;盘锦光合蟹业有限公司;上海海洋大学水产动物遗传育种上海市协同创新中心;上海海洋大学水产科学国家级实验教学示范心 |
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| 基金项目： | 国家重点研发计划“蓝色粮仓科技创新”重点专项(2018YFD0900103;2018YFD0900603);农业部现代农业产业技术体系专项(CARS-48);上海市高水平地方高校建设科研项目(A1-2801-18-1003);深圳市澳华农牧有限公司项目(D-8006-16-0088) |
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| 摘 要： | 为鉴别长江水系与荷兰野生中华绒螯蟹(Eriocheir sinensis),运用基于地标点法的几何形态测量学方法比较两群体绒螯蟹头胸甲的形态特征差异。结果表明:(1)主成分分析结果显示两群体之间无散点重叠,可以各自形成较为集中的区域;(2)网格变形图显示两群体头胸甲的形态差异主要为额刺和侧刺长度;(3)逐步判别分析中两群体的判别准确率均为100%,综合判别率较高。综上,以头胸甲为研究对象的地标点几何形态测量法可以有效区分长江和荷兰野生中华绒螯蟹。
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| 关 键 词： | 中华绒螯蟹(Eriocheir sinensis) 几何形态学 地标点法 地理种群 群体识别 |
Landmark-based morphometric comparison analysis on carapace of wild Eriocheir sinensis collected from the Yangtze River and the Netherlands |
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| JIANG Xiao-dong,CHENG Yong-xu,PAN Jian-lin,LI Xiao-dong,WU Xu-gan.Landmark-based morphometric comparison analysis on carapace of wild Eriocheir sinensis collected from the Yangtze River and the Netherlands[J].Freshwater Fisheries,2020(1):38-43. |
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| Authors: | JIANG Xiao-dong CHENG Yong-xu PAN Jian-lin LI Xiao-dong WU Xu-gan |
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| Institution: | (Key Laboratory of Freshwater Aquatic Genetic Resources,Ministry of Agriculture and Rural Affairs,Shanghai Ocean University,Shanghai 201306,China;Freshwater Fisheries Research Institute of Jiangsu Province,Nanjing 210017,China;Panjin Guanghe Crab Industry Ltd.Co.,Panjin 124200,Liaoning,China;Shanghai Collaborative Innovation Center for Aquatic Animal Genetics and Breeding,Shanghai Ocean University,Shanghai 201306,China;National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China) |
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| Abstract: | Landmark-based geometric morphometrics analysis was used to compare the morphological characteristics of carapaces o of Eriocheir sinensis to identify different geographical populations of wild species collected from the Yangtze River and the Netherlands.The principal component analysis results showed that wild populations could be divided into two relatively independent groups by the first two principal components.The grad distortion map showed that morphological differences of various populations were mainly manifested in the frontal and lateral spines of carapace.The discriminative accuracy of wild populations in the stepwise discriminant analysis were both 100%.In summary,landmark-based morphometrics analysis is an effective means to distinguish the wild E.sinensis from the Yangtze River and the Netherlands. |
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| Keywords: | Eriocheir sinensis geometric morphometrics landmark-based analysis geographical population population identification |
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