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张雪飞,何春林,宋昭彬.2010.大渡河上游麻尔柯河高原鳅的年龄与生长.动物学杂志,45(4):11-20.
大渡河上游麻尔柯河高原鳅的年龄与生长
Age and Growth of Triplophysa markehenensis from the Markehe River in Upper Reaches of the Dadu River
投稿时间:2009-12-15  修订日期:2010-04-24
DOI:
中文关键词:  耳石  脊椎骨  年龄  生长
英文关键词:Otolith  Vertebra  Age  Growth
基金项目:教育部留学回国人员科研启动基金项目(No.2008890-19-13)
作者单位E-mail
张雪飞 四川大学生命科学学院四川省濒危野生动物保护生物学重点实验室 成都 610064 zbsong@scu.edu.cn 
何春林 四川大学生命科学学院四川省濒危野生动物保护生物学重点实验室 成都 610064  
宋昭彬 四川大学生命科学学院四川省濒危野生动物保护生物学重点实验室 成都 610064  
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中文摘要:
      研究了采自大渡河上游麻尔柯河及其支流则曲的129尾麻尔柯河高原鳅(Triplophysa markehenensis)的年龄结构和生长特性。结果表明,耳石和脊椎骨都可作为年龄鉴定的材料,其中耳石是进行年龄鉴定的最适材料,脊椎骨则可作为辅助材料;背鳍条不适合用于年龄鉴定。这批麻尔柯河高原鳅的年龄范围为2~8龄,以3~6龄居多,占总数的83.5%;体长体重呈幂函数关系:W=0.000015L2.951931;Von Bertalanffy生长方程为:Lt=173.1241[1-e-0.1597(t+0.5328)],Wt=60.7531[1-e-0.1597(t+0.5328)]2.9519;体重生长曲线的拐点为t=6.25,拐点时体长为114.5mm,体重为17.9g。关键词:耳石;脊椎骨;年龄;生长
英文摘要:
      Age structure and growth characters of 129 Triplophysa markehenensis collected from the Markehe River and its tributary,Zequ,in upper reaches of the Dadu River were investigated and analyzed. The characteristics of three kinds of age identification materials of T. markehenensis,otolith,vertebra and last unbranched dorsal-fin ray,had been described and compared. The results showed that both otolith and vertebra could be used for age identification of the species,and otolith is more appropriate compared with vertebra, which could be used as accessory identification material. However,the unbranched dorsal-fin ray is not suitable for age identification in this species. Age of the fishes was identified to seven age classes (2-8 years old), and individuals of 3-6 years old were dominated with a frequency of 83.5% . The regressed equation between body weight (W) and body length (L) is W=0.000015 L2.951931 (R2=0.967 3). Growth model of the species was described using Von Bertalanffy equation: Lt=173. 124 1[1-e-0.159 7(t +0.5328) ],Wt=60.753 1[1-e-0.159 7(t +0.5328) ]2.9519 . Growth inflexion occurred at 6. 25 years,when body length is 114. 5 mm and body weight is 17.9 g.
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