Chinese sturgeon needs urgent rescue

doi:10.1126/science.abf4946

GSTDTAP > 气候变化

DOI	10.1126/science.abf4946
	Chinese sturgeon needs urgent rescue
	Xinfa Zhou; Lu Chen; Jing Yang; Haiqing Wu
	2020-12-04
发表期刊	Science
出版年	2020
英文摘要	China's construction of large hydropower stations on the Yangtze and Jinsha rivers has had a devastating impact on the resources, spawning and reproduction behavior, and migration habits of the Chinese sturgeon ( Acipenser sinensis ), a “living fossil” ([ 1 ][1]) with immeasurable scientific, ecological, social, and economic value. In the 1970s, there were more than 10,000 Chinese sturgeon breeding populations in the Yangtze River, but the number dropped to 2176 in the 1980s when the Yangtze's first dam and hydropower station opened, then to 363 in 2000, and to 57 in 2010 ([ 2 ][2]). The International Union for Conservation of Nature (IUCN) now lists the Chinese sturgeon as Critically Endangered ([ 3 ][3]), and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) lists the species under Appendix II ([ 4 ][4]). China must take action to save this vulnerable species. The Jinsha River, located in the upper reaches of the Yangtze River, is the traditional spawning ground and natural breeding habitat of the Chinese sturgeon ([ 5 ][5]), as well as the largest hydropower base in China ([ 6 ][6]). The construction of the cascade dams on the Jinsha River hinders the Chinese sturgeon's ability to swim upstream to spawn and migrate and damages their habitat ([ 7 ][7]). Moreover, a series of dams on the upper reaches of the Yangtze River and the Three Gorges Reservoir have affected Chinese sturgeon spawning activities by leading to warmer water temperatures ([ 8 ][8]). Since the Three Gorges, Xiangjiaba, and Xiluodu projects began operation in 2008, 2012, and 2013, respectively, the effective reproduction of the Chinese sturgeon has mostly been lost, and the wild population is facing extinction. China has established three Chinese sturgeon nature reserves ([ 9 ][9]) and implemented a 10-year fishing ban in the Yangtze River ([ 10 ][10]), which began in January 2020. These efforts are not enough. Although China artificially breeds and releases Chinese sturgeon, this strategy is not effectively restoring population numbers ([ 11 ][11]). To save the wild Chinese sturgeon population, targeted measures must be taken to decrease the impact of the Yangtze River dams and restore natural reproduction. The government should immediately reassess the ecological impact of the Jinsha River hydropower project, especially with regard to Chinese sturgeon and other migratory fish habitats. A Chinese sturgeon channel should be built in the hydropower stations along the Jinsha River to ensure the smooth flow of migratory fish in the Yangtze River. China should also prioritize the protection of aquatic organisms in the Yangtze River, increase protection of the habitats of the Chinese sturgeon in the Yangtze River and its coastal areas, strictly control fishing, and increase the number of artificial releases. 1. [↵][12]1. G. Z. Zhou et al ., J. Fish Biol. 73, 8 (2008). [OpenUrl][13] 2. [↵][14]UFO Talk, “Those creatures who never come back, now we can only look at pictures and talk” (2017); [www.sohu.com/a/135759216_158217][15] [in Chinese]. 3. [↵][16]1. W. Qiwei , Acipenser sinensis (IUCN Red List of Threatened Species, 2010). 4. [↵][17]Shanghai Yangtze River Estuary Chinese Sturgeon Nature Reserve Management Office, China Fish. 12, 21 (2016) [in Chinese]. [OpenUrl][18] 5. [↵][19]1. P. Xie , J. Lake Sci. 32, 4 (2020). [OpenUrl][20] 6. [↵][21]1. Y. X. Cheng , Sci. Technol. Innovation Appl. 10, 238 (2017). [OpenUrl][22] 7. [↵][23]1. P. Xie , Science 302, 1149 (2003). [OpenUrl][24][PubMed][25] 8. [↵][26]1. M. Fang et al ., Chin. J. 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领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/305817
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Xinfa Zhou,Lu Chen,Jing Yang,et al. Chinese sturgeon needs urgent rescue[J]. Science,2020.
APA	Xinfa Zhou,Lu Chen,Jing Yang,&Haiqing Wu.(2020).Chinese sturgeon needs urgent rescue.Science.
MLA	Xinfa Zhou,et al."Chinese sturgeon needs urgent rescue".Science (2020).