筴鱼形态特征参数的比较分析.pdfVIP

现代食品科技 Modern Food Science and Technology 2013, Vol.29, No.1 竹筴鱼形态特征参数的比较分析 胡晓亮，陈庆余 （农业部渔业装备与工程重点开放实验室，中国水产科学研究院渔业机械仪器研究所，国家水产品加工装备研发 分中心，上海 200092） 摘要：采集东海水域100尾竹筴鱼样本，测量其体长、全长、头长、头高、体高、体厚、吻长、眼径、眼后头长、尾柄长、尾柄 高、体重共12个形态或生物学特征指标。采用方差分析、偏相关分析，研究竹筴鱼各参数与鱼体体长的关联及不同形态特征参数间的 相关关系。结果表明：竹筴1龄幼鱼同2龄成鱼在体长、头高、眼后头长、尾柄高及体重间存在显著差异。相比2龄成鱼，1龄幼鱼各形 态特征参数间存在更多的偏相关性，其中头长与其它参数存在最多的偏相关性，而吻长、尾柄长与其他参数的偏相关性最差；对于2 龄成鱼，与其它参数存在最多偏相关性的是头高，而吻长、尾柄长与其他参数间均不存在显著的偏相关性；综合参数间的相关性，头 长、头高、尾柄高、体重这4个参数同其他特征参数间始终存在显著相关关系，其变异的可能性较低。 关键词：竹筴鱼；形态特征；相关分析；变异 文章篇号：1673-9078(2013)1-34-37 Comparative Study on Morphological Characteristics of Trachurus japonicus HU Xiao-liang, Chen Qing-yu ( Key Laboratory of Fishery Equipment and Engineering, Ministry of Agriculture, Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Science, National R D Branch Center For Aquatic Product Processing Equipment, Shanghai, 200092 ) Abstract: One hundred samples of Trachurus japonicus were collected from East China Sea in the year 2012. Its standard length, total length, head length, head depth, body depth, body width, snout length, eye diameter, postorbital length of head, peduncle length,peduncle depth, weight 12 morphological characteristics were measured. The correlation between the morphological characteristics was studied by analysis of variance and partial correlation analysis. The results showed that: standard length, head depth, postorbital length of head, caudal depth and weight of 1 - 2 Year-old Trachurus japonicus was exponentially different (P 0.01). 1 Year-old Trachurus japonicus had more partial correlation than the 2 year-old one. The head