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题名: Reproductive characteristics of Ancherythroculter nigrocauda, an endemic fish in the upper Yangtze River, China
作者: Liu, Chunchi1, 2, 3; Gao, Xin1, 2; Wang, Huanshan1, 2, 3; Liu, Huanzhang1, 2; Cao, Wenxuan1, 2; Danley, Patrick D.4
通讯作者: Gao, X (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7th Southern Rd East Lake, Wuhan 430072, Hubei, Peoples R China.
关键词: Ancherythroculter nigrocauda ; Endemic fish ; Yangtze River ; Sex ratio ; Spawning season ; Maturity ; Fecundity ; Life history
刊名: FISHERIES SCIENCE
发表日期: 2013-09-01
DOI: 10.1007/s12562-013-0656-z
卷: 79, 期:5, 页:799-806
收录类别: SCI
文章类型: Article
部门归属: [Liu, Chunchi ; Gao, Xin ; Wang, Huanshan ; Liu, Huanzhang ; Cao, Wenxuan] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China ; [Liu, Chunchi ; Gao, Xin ; Wang, Huanshan ; Liu, Huanzhang ; Cao, Wenxuan] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China ; [Liu, Chunchi ; Wang, Huanshan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Danley, Patrick D.] Baylor Univ, Dept Biol, Waco, TX 76798 USA
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: China Three Gorges Corporation [0799527]; National Natural Science Foundation of China [31061160185, 31201727]
类目[WOS]: Fisheries
研究领域[WOS]: Fisheries
摘要: Knowledge on the reproductive biology of fishes is critical for understanding a species' life history and devising appropriate management strategies. Anthropogenic forces, such as damming and overfishing, threaten fishes endemic to the upper Yangtze River. We conducted a study on the reproductive biology of an endemic species, Ancherythroculter nigrocauda in order to provide information on the life history of this species and to assist in its conservation. From July 2011 to June 2012, a total of 417 fishes were captured via monthly sampling by fishermen in the Longxi River, a tributary in the upper Yangtze River. Although the female-male ratio was 1:1.03, females were predominantly larger in body size. Gonad somatic indices and oocyte diameter distribution showed that the spawning period of A. nigrocauda in the Longxi River ranged from April to August, with the peak in April. Body length at 50 % sexual maturity of A. nigrocauda was estimated to be 125 and 106 mm for females and males, respectively. Absolute fecundity of A. nigrocauda varied between 11,300 and 504,630 eggs, with the mean of 162,377 eggs. In conclusion, A. nigrocauda mature early, spawn once, and are highly fecund, all of which are consistent with an r-selected life history. It is recommended that a moratorium on fishing this species be enacted and the culture of this species be continued.
英文摘要: Knowledge on the reproductive biology of fishes is critical for understanding a species' life history and devising appropriate management strategies. Anthropogenic forces, such as damming and overfishing, threaten fishes endemic to the upper Yangtze River. We conducted a study on the reproductive biology of an endemic species, Ancherythroculter nigrocauda in order to provide information on the life history of this species and to assist in its conservation. From July 2011 to June 2012, a total of 417 fishes were captured via monthly sampling by fishermen in the Longxi River, a tributary in the upper Yangtze River. Although the female-male ratio was 1:1.03, females were predominantly larger in body size. Gonad somatic indices and oocyte diameter distribution showed that the spawning period of A. nigrocauda in the Longxi River ranged from April to August, with the peak in April. Body length at 50 % sexual maturity of A. nigrocauda was estimated to be 125 and 106 mm for females and males, respectively. Absolute fecundity of A. nigrocauda varied between 11,300 and 504,630 eggs, with the mean of 162,377 eggs. In conclusion, A. nigrocauda mature early, spawn once, and are highly fecund, all of which are consistent with an r-selected life history. It is recommended that a moratorium on fishing this species be enacted and the culture of this species be continued.
关键词[WOS]: SEXUAL-MATURITY ; EGG SIZE ; BIOLOGY ; FECUNDITY ; GROWTH ; AGE ; POPULATION ; CONSERVATION ; MATURATION ; CRUSTACEA
语种: 英语
WOS记录号: WOS:000324114100007
ISSN号: 0919-9268
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19531
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, Hubei, Peoples R China
2.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Baylor Univ, Dept Biol, Waco, TX 76798 USA

Recommended Citation:
Liu, CC; Gao, X; Wang, HS; Liu, HZ; Cao, WX; Danley, PD.Reproductive characteristics of Ancherythroculter nigrocauda, an endemic fish in the upper Yangtze River, China,FISHERIES SCIENCE,2013,79(5):799-806
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