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The Yangtze River dolphin or baiji (Lipotes vexillifer): population status and conservation issues in the Yangtze River, China

文献类型：期刊论文

作者Zhang, X; Wang, D; Liu, R; Wei, Z; Hua, Y; Wang, Y; Chen, Z; Wang, L
刊名AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
出版日期2003
卷号13期号:1页码:51-64
关键词Yangtze River dolphin baiji conservation
ISSN号1052-7613
通讯作者Zhang, X, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China
中文摘要1. Baiji were sighted 17 times during three recent simultaneous multi-vessel surveys in the Yangtze River, China (November 4-10, 1997; December 4-9, 1998; October 31-November 5, 1999). There were 11 sightings in 1997 (consisting of 17 animals), five in 1998 (seven animals), and two in 1999 (four animals). It was concluded that 13 individuals Could be considered as a minimum number of the baiji currently in the Yangtze River. 2. An annual rate of population decrease was roughly estimated as 10%. From the body sizes observed, the proportions of old, adult and immature individuals were approximately estimated at 57, 26, and 17% respectively. 3. Baiji showed a significant attraction to confluences and sand bars with large eddies. The present distribution range of the baiji is less than 1400 km in length in the Yangtze main river. Distances between the two nearest groups of baiji appear to be increasing. 4. Two typical sightings are described, in which surfacing and movements of baiji were recorded. Baiji were often found swimming together with finless porpoise. In the surveys they occurred in the same group in 63% of occurrences. Interactions between baiji and finless porpoise are described and discussed. 5. Human activities are the main threats to the baiji. Illegal electrical fishing accounted for 40% of known mortalities during the 1990s. Engineering explosions for maintaining navigation channels have become another main cause of baiji deaths. The last hope of saving the species may be to translocate the remaining baiji into a semi-captive reserve. known as the 'Baiji Semi-natural Reserve'. Copyright (C) 2003 John Wiley Sons, Ltd.
英文摘要1. Baiji were sighted 17 times during three recent simultaneous multi-vessel surveys in the Yangtze River, China (November 4-10, 1997; December 4-9, 1998; October 31-November 5, 1999). There were 11 sightings in 1997 (consisting of 17 animals), five in 1998 (seven animals), and two in 1999 (four animals). It was concluded that 13 individuals Could be considered as a minimum number of the baiji currently in the Yangtze River.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
学科主题Environmental Sciences; Marine & Freshwater Biology; Water Resources
类目[WOS]Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
研究领域[WOS]Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
收录类别SCI
语种英语
WOS记录号WOS:000181357700005
公开日期2010-10-13
源URL[http://ir.ihb.ac.cn/handle/152342/9738]  
专题水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Nanjing Normal Univ, Coll Biol Sci, Nanjing 210097, Peoples R China
3.Minist Agr, Fishery Bur, Beijing 100026, Peoples R China
4.Minist Agr, Adm Commiss Yangtze River Fisheries Resources, Shanghai 200063, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, X,Wang, D,Liu, R,et al. The Yangtze River dolphin or baiji (Lipotes vexillifer): population status and conservation issues in the Yangtze River, China[J]. AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,2003,13(1):51-64.
APA Zhang, X.,Wang, D.,Liu, R.,Wei, Z.,Hua, Y.,...&Wang, L.(2003).The Yangtze River dolphin or baiji (Lipotes vexillifer): population status and conservation issues in the Yangtze River, China.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,13(1),51-64.
MLA Zhang, X,et al."The Yangtze River dolphin or baiji (Lipotes vexillifer): population status and conservation issues in the Yangtze River, China".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS 13.1(2003):51-64.

入库方式： OAI收割

来源：水生生物研究所

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