气候变化领域集成服务门户(CCPortal): Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau

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DOI	10.3389/fmars.2023.1193699
	Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau
	Li, Songtao; Gu, Haoran; Wang, Yuanfu; Wang, Zhijian
发表日期	2023
EISSN	2296-7745
卷号	10
英文摘要	The distribution pattern of species is determined by the environment and their adaptability to the environment. Qinghai-Tibet Plateau has become a natural laboratory for studying adaptive evolution due to its extreme environmental characteristics such as low temperature, low oxygen, high salinity and high ultraviolet radiation (UVR). Fish are sensitive to the environmental stress, so they are ideal materials for studying high-altitude adaptation of animals. Previous studies have mainly focused on the adaptability of plateau species, but the reasons why plain species cannot spread to the plateau have been ignored. In this study, stress experiments and histological experiments were used to compare the tolerance of six Barbini fishes (family: Cyprinidae) distributed at different altitudes and regions to low temperature, low oxygen, salinity and UVR. Results showed that the tolerance of fishes to high-altitude environmental stress factors was closely related to the environmental stress of their main habitats. The high-altitude fish Gymnocypris eckloni had strong tolerance to all stress factors, while the other five fishes from middle and low altitudes could not adapt to single or multiple stress factors, with significant interspecific differences. Among these factors, middle- and low-altitude fishes showed common low tolerance to UVR, suggesting that high UVR, the factor lacking at low altitude areas, plays an important role. Moreover, during the uplift of the Qinghai-Tibet Plateau, Schizothorax fish disappeared from the middle of the plateau. We speculate that this was caused by its intolerance to the increasingly extreme plateau environment, especially salinity.
关键词	plateau fish Schizothoracinae environmental stress high-altitude adaptation fishes distribution
英文关键词	GYMNOCYPRIS-PRZEWALSKII; NORTHERN ANCHOVY; STRESS-RESPONSE; LUNPOLA BASIN; LAKE QINGHAI; FRESH-WATER; EVOLUTION; SALINITY; EXPRESSION; GROWTH
WOS研究方向	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001002482000001
来源期刊	FRONTIERS IN MARINE SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283039
作者单位	Southwest University - China; Southwest University - China; Southwest University - China
推荐引用方式 GB/T 7714	Li, Songtao,Gu, Haoran,Wang, Yuanfu,et al. Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau[J],2023,10.
APA	Li, Songtao,Gu, Haoran,Wang, Yuanfu,&Wang, Zhijian.(2023).Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau.FRONTIERS IN MARINE SCIENCE,10.
MLA	Li, Songtao,et al."Factors limiting the spread of middle- and low-altitude fishes to the Qinghai-Tibet plateau".FRONTIERS IN MARINE SCIENCE 10(2023).