达里湖瓦氏雅罗鱼耳石质量与年龄关系  

Relationship between Otolith Weight and Age in Amur Ide Leuciscus waleckiiin Dali Lake

作　　者：徐聚臣 段友健 骆小年 蔡忠璐 何宇 刘旋 刘嘉诚 韩牧轩 孙立孝 XU Juchen;DUAN Youjian;LUO Xiaonian;CAI Zhonglu;HE Yu;LIU Xuan;LIU Jiacheng;HAN Muxuan;SUN Lixiao(School of Fisheries and Life Science,Dalian Ocean University,Dalian 116021,China;Dali Lake Fishery Farm,Chifeng 024000,China)

机构地区：[1]大连海洋大学水产与生命学院,辽宁大连116021 [2]达里湖渔场,内蒙古赤峰024000

出　　处：《水产科学》2021年第2期279-284,共6页Fisheries Science

基　　金：辽宁省教育厅科学技术研究项目(QL201704);辽宁省高等学校海洋产业技术研究院项目(DL201903);大连市科技创新基金资助项目(2018J12SN068);大连海洋大学引进人才及在职培养博士启动项目(HDYJ201822);大连海洋大学引进人才启动及在职培养博士启动项目(HDYJ201802);大连海洋大学创新创业训练计划项目(201910158165).

摘　　要：2017年5月—2018年1月,在内蒙古达里湖采集瓦氏雅罗鱼404尾,取出微耳石清洗、烘干、称量质量后,先用热熔胶定于载玻片上打磨后,再热熔胶高温熔化取下耳石,用透光率更高的透明指甲油固定、打磨,至出现清晰轮纹,读取鱼类年龄。分别采用4种方程(直线、幂函数、指数函数和多项式)回归拟合耳石质量与体长、年龄之间的关系,得出瓦氏雅罗鱼耳石质量( m _(O))与年龄( A )之间的函数关系式: m O =-0.0445 A ^(2) +1.9601 A -1.3978( r^( 2) =0.8772)。基于拟合方程和各龄组耳石质量和体长统计图表结果,证明瓦氏雅罗鱼耳石质量可用于鉴定其年龄。利用耳石质量推算鱼类年龄,将推算年龄与耳石年轮读取年龄进行对比,结果表明,瓦氏雅罗鱼耳石质量可以直接推断鱼的年龄,是一种快速简单且稳定的年龄鉴定方法。Four hundred and four samples of Amur ide Leuciscus waleckii were collected in Dali Lake, Inner Mongolia Autonomous Region, from May 2017 to January 2018, and the micro-otoliths were removed for cleaning, drying, and weighing, and then fixed on the glass slide and polished for age determination. Four regression equations including straight line, power function, exponential function and polynomial were used to fit the relationship between otolith weight and body length and age. The functional equation between otolith weight ( m _(O)) and age (A ) was expressed as m O =-0.0445 A ^(2) +1.9601 A -1.3978 ( r^( 2) = 0.8772 ). The fitting equation and the statistical chart of otolith weight and body length of each age group proves that the otolith weight can be used to identify age of Amur ide and has certain advantages. The comparison of the age estimated by the weight of otolith with the reading age of otolith rings reveals that the otolith weight of Amur ide is directly applied to deduce age, with features of rapid, simple and stable for age determination.

关 键 词：瓦氏雅罗鱼 耳石质量 年龄鉴定 达里湖 

分 类 号：S965.199[农业科学—水产养殖]