Degradation of icefishes (Salangidae) in the Yangtze River basin of   China: threats and strategies

doi:10.1007/s10641-008-9372-4

CORC > 北京大学 > 生命科学学院

	Degradation of icefishes (Salangidae) in the Yangtze River basin of China: threats and strategies
	Wang, Zhongsuo ; Shi, Jieqiang ; Xu, Chongren ; Lei, Guangchun
刊名	environmental biology of fishes
	2009
关键词	Stock decline Local extinction Economic extinction Habitat Diversity Conservation NEOSALANX-REGANIUS POPULATION-DYNAMICS FISH COMMUNITIES LAKE ABUNDANCE PATTERNS ESTUARY STOCKS JAPAN BAY
DOI	10.1007/s10641-008-9372-4
英文摘要	The Yangtze River basin has been a major area in terms of icefish diversity conservation and fisheries. In the past two to five decades, however, the wild icefish resources have degraded continuously in both the brackish estuary and freshwater portions of the basin. Stocks have declined in all icefish fisheries, resulting in an annual fishing yield decrease from the maximum of 4,000 metric tons to less than 1,300 metric tons in this river basin. The stocks decline significantly (t = -6.74, df = 1, p < 0.001) correlated with icefish fishing stress in the estuary. Meanwhile, species composition changed markedly with smaller sized icefish species increased relative to the number of larger ones in terms of their relative abundances. Following the stocks decline and size reduction, icefish commercial value decreased to the point that 91.9% of the traditional icefish-producing waters (57 out of 62) terminated their icefish fisheries and some species became locally extinct. Based on the degradation process, we suggest that these changes in stock size and species diversity are the result of overfishing and habitat loss and degradation. We propose a number of measures aimed at the conservation and restoration of the wild icefish resources in the Yangtze River basin.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000271264000016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Ecology; Marine & Freshwater Biology; SCI(E); 4; ARTICLE; 1; 109-117; 86
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/162701]
专题	生命科学学院
推荐引用方式 GB/T 7714	Wang, Zhongsuo,Shi, Jieqiang,Xu, Chongren,et al. Degradation of icefishes (Salangidae) in the Yangtze River basin of China: threats and strategies[J]. environmental biology of fishes,2009.
APA	Wang, Zhongsuo,Shi, Jieqiang,Xu, Chongren,&Lei, Guangchun.(2009).Degradation of icefishes (Salangidae) in the Yangtze River basin of China: threats and strategies.environmental biology of fishes.
MLA	Wang, Zhongsuo,et al."Degradation of icefishes (Salangidae) in the Yangtze River basin of China: threats and strategies".environmental biology of fishes (2009).