Morphological variation of endemic Gymnocypris chilianensis (Cyprinidae) collected from three inland water systems in Qilian Mountains, China

文献类型： 外文期刊

第一作者： Liu, Biyuan

作者： Liu, Biyuan;Peng, Di;Song, Dan;Cheng, Qiqun;Liu, Biyuan;Song, Dan;Lou, Zhongyu;Wang, Tai

作者机构：

关键词： Gymnocypris chilianensis; morphological differences; truss network; landmark; multivariate statistical analysis

期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.4； 五年影响因子：0.5 ）

ISSN： 0792-156X

年卷期： 2024 年 76 卷 3 期

页码：

收录情况： SCI

摘要： To explore the morphological differences among different geographic populations of Gymnocypris chilianensis, 29 measurable traits and 13 landmarks on 191 individuals of 10 geographic populations were collected from three different inland water systems, i.e., Shiyang River, Heihe River, and Shule River, in Qilian Mountains, China. Multivariate statistical methods were used to compare morphological differences among the populations, such as principal component analysis, cluster analysis, discriminant analysis, and visual analysis of landmark data. The results showed that: (1) There were significant morphological differences between groups of G. chilianensis. The Shiyang River basin differs significantly from populations in the other two basins. (2) The inter-population differences were mainly reflected in the length of the trunk and tail, and the difference between trunk and caudal fin had the most obvious characteristics, proving the tail being the main direction of variation. This research provides an effective theoretical basis for the fine management and accurate protection of G. chilianensis germplasm resources.

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