河南地区大鳞副泥鳅和泥鳅的年龄与生长
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国家自然科学基金项目(31201719)和国家大学生创新性实验项目(201310504028)


Age structures and growth characteristics of Paramisgurnus dabryanus and Misgurnus anguillicaudatus in Henan Province
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    摘要:

    2012年10月于河南郑州采集大鳞副泥鳅(Paramisgurnus dabryanus)385尾、泥鳅(Misgurnus anguillicaudatus)177尾,通过鳞片和耳石磨片对其进行年龄鉴定以及生长相关研究。结果表明,鳞片和耳石磨片均适合用于大鳞副泥鳅和泥鳅年龄与生长研究;2种鳅类均有5个年龄组,1~3龄居多;体长和鳞径呈直线相关,表达式分别为LP=4.4602r+5.3128、LM=8.5110r+3.0081;体长与体质量呈幂函数关系,雌雄群体之间无显著性差异,表达式分别为WP=0.008L3.051、WM=0.009L2.992,属等速增长类型;体长生长规律可以用von Bertalanffy方程表示,表达式分别为LP=21.84\[1-e-0.129(t+3.638)\]、LM=28.02\[1-e-0.097(t+3.521)\];大鳞副泥鳅2龄之前生长较快,而泥鳅3龄之前生长较快,快速生长期长。建议在河南地区大鳞副泥鳅和泥鳅野生资源捕捞最小规格为13 cm。

    Abstract:

    The age and growth of Paramisgurnus dabryanus (385 individuals) and Misgurnus anguillicaudatu (177 individuals) sampled from Zhengzhou city,Henan Province were studied using scale and otolith in October,2012.The results showed that the scale and otolith were suitable for determinations of age structure and growth of these two kinds of loaches,which had 5 different age groups and most of them belong to the 1-3 year group.The relationships between body length and scale radius for P.dabryanus and M.anguillicaudatus were beeline correlative and the expressions were LP=4.4602r+5.3128 and LM=8.5110r+3.0081,respectively.The growth rates for body length and weight were similar of these two loaches,with the equations of WP=0.008L3.051(R2=0.886 0) and WM=0.009L2.992(R2=0.869 3),respectively.The body growth pattern could be well described by von Bertalanffy equation of LP=21.84\[1-e-0.129(t+3.638)\] and LM=28.02\[1- e-0.097(t+3.521)\],respectively.The rapid growth stage for P.dabryanus and M.anguillicaudatus was before the age of 2 and 3,respectively.In addition,the results showed that the minimum fishing specifications length for these two loaches was 13 cm.

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黄松钱,王也可,赵婷,王卫民,罗毅,曹小娟.河南地区大鳞副泥鳅和泥鳅的年龄与生长[J].华中农业大学学报,2014,33(05):93-98

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  • 收稿日期:2014-01-15
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