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Life-history strategies of Acrossocheilus fasciatus (Barbinae, Cyprinidae) in the Huishui Stream of the Qingyi watershed, China
Yan, Yun-zhi1; Zhu, Ren1; He, Shan1; Chu, Ling1; Liang, Yang-yang2; Chen, Yi-feng2
2012-07-01
Source PublicationICHTHYOLOGICAL RESEARCH
ISSN1341-8998
Volume59Issue:3Pages:202-211
AbstractLife-history traits of Acrossocheilus fasciatus were examined using 384 specimens collected monthly during May 2009 and April 2010 in the Huishui Stream of the Qingyi watershed, China. Using scales for age determination, female and male fish comprised five and four age groups, respectively. The monthly changes in marginal increment ratio suggested that annuli on scales were formed during March through May. Total lengths back-calculated significantly increased with age for both sexes and varied significantly between the two sexes at each age. The fact that females had larger body size and grew faster than males indicated the sexual size dimorphism for this species. Both sexes got their 50% maturity at age 3, when females and males were 105.3 and 112.1 mm total length, respectively. Based on the monthly changes in the gonado-somatic index and egg-development process, fish spawned from April through August. Absolute fecundity ranged from 295 to 3,573 eggs per fish and increased significantly with age. But relative fecundity, ranging from 11.77 to 69.96 eggs/g, was not significantly different among age groups. Compared with the life-history traits of an upstream population in the Puxi Stream (a headwater stream within this study watershed), the downstream population of A. fasciatus in the Huishui Stream (a 4th-order stream) exhibits larger body size, faster somatic growth, later sexual maturity, and lower reproductive investment. These variations in life-history strategies between the two populations could perhaps be explained by the spatial heterogeneity in habitat environment along the upstream-downstream gradient in this watershed.; Life-history traits of Acrossocheilus fasciatus were examined using 384 specimens collected monthly during May 2009 and April 2010 in the Huishui Stream of the Qingyi watershed, China. Using scales for age determination, female and male fish comprised five and four age groups, respectively. The monthly changes in marginal increment ratio suggested that annuli on scales were formed during March through May. Total lengths back-calculated significantly increased with age for both sexes and varied significantly between the two sexes at each age. The fact that females had larger body size and grew faster than males indicated the sexual size dimorphism for this species. Both sexes got their 50% maturity at age 3, when females and males were 105.3 and 112.1 mm total length, respectively. Based on the monthly changes in the gonado-somatic index and egg-development process, fish spawned from April through August. Absolute fecundity ranged from 295 to 3,573 eggs per fish and increased significantly with age. But relative fecundity, ranging from 11.77 to 69.96 eggs/g, was not significantly different among age groups. Compared with the life-history traits of an upstream population in the Puxi Stream (a headwater stream within this study watershed), the downstream population of A. fasciatus in the Huishui Stream (a 4th-order stream) exhibits larger body size, faster somatic growth, later sexual maturity, and lower reproductive investment. These variations in life-history strategies between the two populations could perhaps be explained by the spatial heterogeneity in habitat environment along the upstream-downstream gradient in this watershed.
SubtypeArticle
KeywordAge Growth Reproduction Acrossocheilus Fasciatus
Department[Yan, Yun-zhi; Zhu, Ren; He, Shan; Chu, Ling] Anhui Normal Univ, Prov Key Lab Biot Environm & Ecol Safety Anhui, Coll Life Sci, Wuhu 241000, Anhui, Peoples R China; [Liang, Yang-yang; Chen, Yi-feng] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
DOI10.1007/s10228-012-0271-5
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080]
Indexed BySCI
Language英语
WOS Research AreaZoology
WOS SubjectZoology
WOS IDWOS:000306931600002
WOS KeywordSEXUAL SIZE DIMORPHISM ; HUANGSHAN MOUNTAIN ; ENVIRONMENTAL VARIATION ; FISH ASSEMBLAGES ; REACTION NORMS ; MARINE FISH ; PUXI STREAM ; AGE ; GROWTH ; MANAGEMENT
Funding OrganizationNational Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080] ; National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17168
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorYan, Yun-zhi; Zhu, Ren; He, Shan; Chu, Ling; Liang, Yang-yang; Chen, Yi-feng
Affiliation1.Anhui Normal Univ, Prov Key Lab Biot Environm & Ecol Safety Anhui, Coll Life Sci, Wuhu 241000, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
Recommended Citation
GB/T 7714
Yan, Yun-zhi,Zhu, Ren,He, Shan,et al. Life-history strategies of Acrossocheilus fasciatus (Barbinae, Cyprinidae) in the Huishui Stream of the Qingyi watershed, China[J]. ICHTHYOLOGICAL RESEARCH,2012,59(3):202-211.
APA Yan, Yun-zhi,Zhu, Ren,He, Shan,Chu, Ling,Liang, Yang-yang,&Chen, Yi-feng.(2012).Life-history strategies of Acrossocheilus fasciatus (Barbinae, Cyprinidae) in the Huishui Stream of the Qingyi watershed, China.ICHTHYOLOGICAL RESEARCH,59(3),202-211.
MLA Yan, Yun-zhi,et al."Life-history strategies of Acrossocheilus fasciatus (Barbinae, Cyprinidae) in the Huishui Stream of the Qingyi watershed, China".ICHTHYOLOGICAL RESEARCH 59.3(2012):202-211.
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