| 赤水河上游墨头鱼年龄与生长研究 |
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| 引用本文： | 赵海涛,王剑伟,刘丽,胡思玉,陈永祥.赤水河上游墨头鱼年龄与生长研究[J].毕节学院学报,2011,29(4):106-111. |
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| 作者姓名： | 赵海涛 王剑伟 刘丽 胡思玉 陈永祥 |
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| 作者单位： | 毕节学院环境与生命科学系;中国科学院水生生物研究所; |
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| 基金项目： | 赤水河水域生态和水生生物调查(071Z13); 贵州省农业科技攻关项目,项目编号:黔科合NY[2008]3039 |
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| 摘 要： | 对赤水河上游国家级鱼类保护区内的墨头鱼标本进行了年龄鉴定,渔获物的年龄结构由0～8龄共9个龄组组成,以低龄个体为主,2～5龄个体占83.07%。体长和体质量呈幂函数关系且幂指数接近3,属于匀速生长类型,因此用Von Bertalanffy方程描述其生长特性,相关生长参数分别为:渐近体长L∞=323.0227mm,渐近体质量W∞=824.7102g,k=0.1781,t0=-1.4655龄。体质量生长拐点年龄Ti=4.77龄,对应体长、体质量分别为Lt=333.14mm,Wt=746.06g。由于捕获物中以低龄个体为主,呈现小型化趋势,建议将其捕捞年龄确定为5龄以保护核心区内的墨头鱼资源。
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| 关 键 词： | 墨头鱼 赤水河上游 年龄 生长 |
Research to Age and Growth of Garra Pingi pingi in the Upper Chishui River |
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| ZHAO Hai-tao,WANG Jian-wei,LIU Li,HU Si-yu,CHEN Yong-xiang.Research to Age and Growth of Garra Pingi pingi in the Upper Chishui River[J].Journal of Bijie University,2011,29(4):106-111. |
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| Authors: | ZHAO Hai-tao WANG Jian-wei LIU Li HU Si-yu CHEN Yong-xiang |
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| Institution: | ZHAO Hai-tao,WANG Jian-wei,LIU Li,HU Si-yu,CHEN Yong-xiang(1.Department of Environment and Life Sciences,Bijie University,Bijie,Guizhou551700,China,2.Institute of Hydrobiology,The Chinese Academy of Sciences,Wuhan,Hubei 430072,China) |
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| Abstract: | To evaluate the current status of Garra Pingi pingi population in protection of national fish the core area.The population is composed of eight groups and the age ranged from 0+ to 8+ with 83.07% individuals under 3 a.The Von Bertalanffy growth model was fitted to mean length of estimated ages of individual fish and estimated growth parameters.The growth parameters of L,W,K and T have been estimated to be 323.0227,824.7102g,0.1781 and-1.4655 respectively.The age of 4.77 years was the turning point of growth... |
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| Keywords: | Garra Pingi Pingi The Upper Chishui River Age Growth |
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