Tian Chen, Fang Lei, Li Xuejian, Li Yonghua, Song Tianjian, Chang Jiang, Liu Cunqi, Zhao Yahui
College of life sciences, Hebei University, Baoding, China College of life sciences, Hebei University Baoding China.
Key Laboratory of the Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China Key Laboratory of the Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences Beijing China.
Biodivers Data J. 2023 Jan 17;11:e97884. doi: 10.3897/BDJ.11.e97884. eCollection 2023.
The Chinese section of the Irtysh River Basin and the Ulungur River Basin, two major river basins of the Altay region, are located at the northwest of Xinjiang Uygur Autonomous Region of China. As an international river, the Chinese section has seven state-level protected fish and seven local-level protected species as well. Many more commercial species have been introduced from eastern China and other countries, accompanied by some low-value and small-sized fish in recent decades. The non-native fish species have already threatened these protected fish. This study investigated the distribution of non-native fish species in the Chinese section of the Irtysh River Basin and the Ulungur River Basin. The basic data for the biodiversity conservation and the information of the non-native fish in these two river basins were gathered.
There are a lot of studies on native fish in the Chinese section of the Irtysh River Basin and Urungur River Basin in China, but there is a lack of studies on non-native fish. Thirteen non-native fish belonging to four orders, nine families and 12 genera were collected in this study. The study includes one dataset. The dataset presents taxonomy, distribution, water body and location for each of the non-native fish collected from the Chinese section of the Irtysh River Basin and the Ulungur River Basin. Our study has found that the proportion of native species has declined, while the number of non-native species has increased from 2013 to 2022. The information we provided could help to develop an international strategy for the protection of aquatic biodiversity.
额尔齐斯河流域中国段和乌伦古河流域是阿勒泰地区的两大主要流域，位于中国新疆维吾尔自治区西北部。作为一条国际河流，额尔齐斯河流域中国段有7种国家级保护鱼类，还有7种自治区级保护鱼类。近几十年来，从中国东部地区和其他国家引入了更多商业鱼类品种，同时也出现了一些低值小型鱼类。这些外来鱼类已经对这些保护鱼类构成了威胁。本研究调查了额尔齐斯河流域中国段和乌伦古河流域外来鱼类的分布情况。收集了这两个流域生物多样性保护的基础数据以及外来鱼类的信息。
中国对额尔齐斯河流域中国段和乌伦古河流域的土著鱼类有很多研究，但对外来鱼类的研究较少。本研究共采集到13种外来鱼类，分属4目9科12属。该研究包含一个数据集。该数据集展示了从额尔齐斯河流域中国段和乌伦古河流域采集的每种外来鱼类的分类学、分布、水体和位置信息。我们的研究发现，2013年至2022年期间，土著物种的比例有所下降，而外来物种的数量有所增加。我们提供的信息有助于制定保护水生生物多样性的国际战略。
