The last giants of the Yangtze River: A multidisciplinary picture of what remains of the endemic Chinese sturgeon

文献类型： 外文期刊

第一作者： Boscari, Elisa

作者： Boscari, Elisa;Wu, Jinming;Wang, Chengyou;Du, Hao;Li, Chuangju;Li, Junyi;Ruan, Rui;Wei, Qiwei;Boscari, Elisa;Cattelan, Silvia;Palle, Stefano Dalle;Congiu, Leonardo;Jiang, Tao;Yang, Jian;Zhang, Shuhuan;Wei, Qiwei;Xu, Junmin;Zheng, Yueping;Congiu, Leonardo

作者机构：

关键词： Acipenser sinensis residual population; Elemental analyses; genetic analyses; Gezhouba dam; Three-Georges dam; Yangtze River

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）

ISSN： 0048-9697

年卷期： 2022 年 843 卷

页码：

收录情况： SCI

摘要： The Chinese sturgeon, an important endemism of the Yangtze River, belongs to 'the most critically endangered group of species' worldwide, with overfishing and habitat destruction being the main drivers towards extinction. Newly obtained microchemical comparisons between animals and water from different river locations revealed a probable shifting of the spawning ground few kilometers downstream compared to the only previously known site, located under the Gezhouba Dam. This offers a glimmer of hope for an adaptive response to habitat perturbation caused by the recently built Three Gorges dam on the Yangtze River. On the other hand, genetic data provide an estimate of about 20 breeders participating in the only significant breeding event of the past 10 years. This warns of a near species extinction forecast if no in situ and ex situ conservation efforts occur promptly. Given these results we propose a list of priority conservation actions that urgently need to be promoted, supported, and put into practice.

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