基于鱼体和耳石形态的东海两种鲐属鱼类判别分析  

Discriminant analysis of two Scomber species in the East China Sea based on shape and otolith morphology

作　　者：韩霈武 陈新军[1,3,4,5,6] 方舟 张衡[2] HAN Pei-wu;CHEN Xin-jun;FANG Zhou;ZHANG Heng(College of Marine Sciences of Shanghai Ocean University, Shanghai 201306, China;East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 20009,China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306,China;National Engineering Research Center for Oceanic Fisheries,Shanghai 201306, China;Key Laboratory of OceanicFisheries Exploration, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China;Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture and Rural Affairs, Shanghai 201306,China)

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]中国水产科学研究院东海水产研究所,上海200090 [3]大洋渔业资源可持续开发教育部重点实验室,上海201306 [4]国家远洋渔业工程技术研究中心,上海201306 [5]农业农村部大洋渔业开发重点实验室,上海201306 [6]农业农村部大洋渔业资源环境科学观测实验站,上海201306

出　　处：《海洋渔业》2020年第2期161-169,共9页Marine Fisheries

基　　金：国家自然科学基金面上项目(NSFC41476129);大洋渔业资源可持续开发教育部重点实验室开放课题(A1-2006-00-301109)。

摘　　要：为了有效区分东海两种鲐属鱼类,根据2017年10月至2018年2月在东海所采集的鲐属鱼类(Scomber spp.)样本,利用框架测量法与傅立叶分析分别对鱼体外形和耳石形态进行分析,框架测量法共测量26个可量性状,并利用平均值与t检验对两种鲐属鱼类形态差异进行初步比较,然后对两种鲐属鱼类耳石进行傅立叶分析,模拟耳石形态,最后利用判别分析进行结果比较。结果表明,在26个可量性状中有25个值存在显著差异(P<0.05),1个值不存在显著差异(P>0.05)。基于框架测量法的判别分析结果表明,26个可量性状中的4个进入了逐步判别分析中,总判别正确率为86.70%;耳石的傅立叶分析中,基于77个傅立叶系数,选出7个系数进入逐步判别分析中,总判别正确率为90.20%。总体而言,两种方法所得到的结果一致,均表明日本鲭(S.japonicus)与澳洲鲐(S.australasicus)差异明显,同时傅立叶分析法对耳石的判别分析比框架测量法在判别正确率上有所提升,也说明耳石傅立叶分析可以更好地用于鱼类种类判别。In order to effectively discriminate between two species of Scomber in the East China Sea,the shape and otolith morphology of Scomber were analyzed by truss network and Fourier analysis,according to the samples collected from October 2017 to February 2018 in the East China Sea.A total of 26 morphometric characteristics were measured by truss network.The morphological differences between two species of Scomber were preliminarily compared by means of average and t-test.Then the otoliths of two species of Scomber were analyzed by Fourier analysis and simulated.Finally,The otolith morphology was compared by stepwise discriminant analysis(SDA).The results showed that there were significant difference in 25 of the 26 morphometric characteristics(P<0.05),and no significant difference was found in 1 of the 26 morphometric characteristics(P>0.05).The results of SDA based on truss network showed that 4 of the 26 morphometric characteristics entered in the SDA,and the total correct classification was 86.70%.In the Fourier analysis of otolith,7 harmonics of 77 ellipse Fourier descriptors(EFDs)entered in SDA,and the total correct classification was 90.20%.Overall,the results obtained by the two methods were identical,which showed that there were obvious differences between Scomber japonicus and Scomber australasicus.At the same time,the SDA of otolith by Fourier analysis was better than that by truss network in correct classification,which also showed that otolith Fourier analysis can be better used to discriminate fish species.

关 键 词：鲐属 框架网络 耳石 傅立叶分析 逐步判别分析 

分 类 号：S917.4[农业科学—水产科学]