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Age, growth and mortality of invasive sharpbelly, Hemiculter leucisculus (Basilewski, 1855) in Erhai Lake, China
Wang, T.1; Huang, D.1; Zhao, Y.2; Wang, H.1; Hu, S.1; Shen, J.1; Shen, J (reprint author), Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Hubei, Peoples R China.
2013-12-01
Source PublicationJOURNAL OF APPLIED ICHTHYOLOGY
ISSN0175-8659
Volume29Issue:6Pages:1279-1285
AbstractThe sharpbelly Hemiculter leucisculus, an invasive species, has expanded its range throughout much of Asia and into the Middle East. However, little is known of its adaptive changes regarding life history traits such as age, growth and mortality that could possibly explain its success as an invasive species. A detailed study of the invasive sharpbelly was conducted based on 4539 samples collected from July 2009 to June 2011 in Erhai Lake, China. Standard length ranged from 4.3-19.1cm for females and 4.6-12.3cm for males. Length-weight relationships for females and males were significantly different and described as W=0.0076SL(3.2608) and W=0.0084SL(3.1901), respectively. Otoliths are ideal for age determination because of the single annulus formed each year. Based on marginal increment analysis, the total mean CV for age estimate between two readings was 3.55%. The von Bertalanffy growth curves computed by observed length-at-age data were expressed as L-t=25.6 (1 - e(-0.176 (t+1.347))) for females and L-t=16.4 (1 - e(-0.354 (t+0.819))) for males. According to the age, growth and mortality data, there are three possible reasons for H.leucisculus attaining such dominance within a short time in Erhai Lake. First, because of the simple age structure of this species: 97.58% of males were 1-2years old with a maximum age of only 3years; 93.14% of females were 1-3years old, with a maximum age of 6years. Second, females grew larger than males at any age. Third, instantaneous mortality rates were much higher for males (4.22year(-1)) than for females (1.17year(-1)).; The sharpbelly Hemiculter leucisculus, an invasive species, has expanded its range throughout much of Asia and into the Middle East. However, little is known of its adaptive changes regarding life history traits such as age, growth and mortality that could possibly explain its success as an invasive species. A detailed study of the invasive sharpbelly was conducted based on 4539 samples collected from July 2009 to June 2011 in Erhai Lake, China. Standard length ranged from 4.3-19.1cm for females and 4.6-12.3cm for males. Length-weight relationships for females and males were significantly different and described as W=0.0076SL(3.2608) and W=0.0084SL(3.1901), respectively. Otoliths are ideal for age determination because of the single annulus formed each year. Based on marginal increment analysis, the total mean CV for age estimate between two readings was 3.55%. The von Bertalanffy growth curves computed by observed length-at-age data were expressed as L-t=25.6 (1 - e(-0.176 (t+1.347))) for females and L-t=16.4 (1 - e(-0.354 (t+0.819))) for males. According to the age, growth and mortality data, there are three possible reasons for H.leucisculus attaining such dominance within a short time in Erhai Lake. First, because of the simple age structure of this species: 97.58% of males were 1-2years old with a maximum age of only 3years; 93.14% of females were 1-3years old, with a maximum age of 6years. Second, females grew larger than males at any age. Third, instantaneous mortality rates were much higher for males (4.22year(-1)) than for females (1.17year(-1)).
SubtypeArticle
KeywordFish Reproduction Cyprinidae Waters Iran
Department[Wang, T. ; Huang, D. ; Wang, H. ; Hu, S. ; Shen, J.] Huazhong Agr Univ, Coll Fisheries, Minist Agr, Key Lab Freshwater Anim Breeding, Wuhan 430070, Hubei, Peoples R China ; [Zhao, Y.] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
DOI10.1111/jai.12287
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationKey Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004]
Indexed BySCI
Language英语
WOS Research AreaFisheries ; Marine & Freshwater Biology
WOS SubjectFisheries ; Marine & Freshwater Biology
WOS IDWOS:000327212000016
WOS KeywordFISH ; REPRODUCTION ; CYPRINIDAE ; WATERS ; IRAN
Funding OrganizationKey Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004] ; Key Technologies R & D Program of China [2008ZX07105-005, 2008ZX07105-004]
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19783
Collection水环境工程研究中心_期刊论文
Corresponding AuthorShen, J (reprint author), Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Hubei, Peoples R China.
Affiliation1.Huazhong Agr Univ, Coll Fisheries, Minist Agr, Key Lab Freshwater Anim Breeding, Wuhan 430070, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Wang, T.,Huang, D.,Zhao, Y.,et al. Age, growth and mortality of invasive sharpbelly, Hemiculter leucisculus (Basilewski, 1855) in Erhai Lake, China[J]. JOURNAL OF APPLIED ICHTHYOLOGY,2013,29(6):1279-1285.
APA Wang, T..,Huang, D..,Zhao, Y..,Wang, H..,Hu, S..,...&Shen, J .(2013).Age, growth and mortality of invasive sharpbelly, Hemiculter leucisculus (Basilewski, 1855) in Erhai Lake, China.JOURNAL OF APPLIED ICHTHYOLOGY,29(6),1279-1285.
MLA Wang, T.,et al."Age, growth and mortality of invasive sharpbelly, Hemiculter leucisculus (Basilewski, 1855) in Erhai Lake, China".JOURNAL OF APPLIED ICHTHYOLOGY 29.6(2013):1279-1285.
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