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题名: Life history traits and implications for conservation of rock carp Procypris rabaudi Tchang, an endemic fish in the upper Yangtze River, China
作者: Wang, Teng1, 2; Gao, Xin1; Wang, Jun1, 2; Jakovlic, Ivan3; Dan, Sheng-Guo1; Liu, Huan-Zhang1
通讯作者: Liu, HZ (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: Procypris rabaudi ; Endemic fish ; Chishui River ; Age ; Growth ; Reproductive biology ; Conservation
刊名: FISHERIES SCIENCE
发表日期: 2015-05-01
DOI: 10.1007/s12562-015-0872-9
卷: 81, 期:3, 页:515-523
收录类别: SCI
文章类型: Article
部门归属: [Wang, Teng ; Gao, Xin ; Wang, Jun ; Dan, Sheng-Guo ; Liu, Huan-Zhang] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China ; [Wang, Teng ; Wang, Jun] Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Jakovlic, Ivan] Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries
研究领域[WOS]: Fisheries
英文摘要: Rock carp is an endemic fish in the upper Yangtze River basin. Its populations have dramatically declined in the recent years due to human activities, such as overfishing and damming. In the present study, with the aim to give suggestions for better conservation, we investigated age, growth, and reproductive biology of the rock carp using samples collected between 2007 and 2013 from the Chishui River. The results indicate that there are no significant differences between the length-weight relationships of females and males (W = 0.015SL(3.155)). The von Bertalanffy growth curves computed by the observed length-at-age data could be expressed as L (t) = 64.9(1 - e(-0.101(t+0.217))). The estimated length at 50 % sexual maturity for males is 24.2 cm (approximately aged 4) and 37.0 cm for females. Female gonad analysis suggests that rock carp is a batch spawner, which can spawn at least twice during the reproductive season, from April to August. Standard length and age of 86.5 % individuals were below 25 cm and 4 years, respectively, indicating that the exploitation is too intensive and that populations are undergoing miniaturization. These data corroborate that a combination of natural and anthropogenic factors has caused a sharp decline in wild populations during recent years, calling for immediate design and implementation of conservation measures for this species.
关键词[WOS]: NATURAL MORTALITY ; OOCYTE GROWTH ; AGE ; REPRODUCTION ; SHARKS ; SIZE
语种: 英语
WOS记录号: WOS:000354194100011
ISSN号: 0919-9268
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23825
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China
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