条石鲷自然群体和养殖群体形态差异分析  

Analysis of morphological differences between natural and cultured populations of Oplegnathus fasciatus

作　　者：王嘉浩 胡桂森 吴章 朱凯 徐开达[1,2] 王好学 戴乾[1,2] WANG Jiahao;HU Guisen;WU Zhang;ZHU Kai;XU Kaida;WANG Haoxue;DAI Qian(Scientific Observation and Experimental Station of Fishery Resources of Key Fishing Grounds,Ministry of Agriculture and Rural Affairs/Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province,Zhejiang Marine Fisheries Research Institute,Zhoushan 316021,Zhejiang,China;Marine and Fishery Research Institute,Zhejiang Ocean University,Zhoushan 316022,Zhejiang,China;Oceanic and Fisheries Bureau of Shengsi County,Zhoushan 202450,Zhejiang,China;Yueqing Liushi Senior Middle School,Wenzhou 325608,Zhejiang,China)

机构地区：[1]浙江省海洋水产研究所,农业农村部重点渔场渔业资源环境科学观测实验站/浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021 [2]浙江海洋大学海洋与渔业研究所,浙江舟山316022 [3]嵊泗县海洋与渔业局,浙江舟山202450 [4]乐清市柳市中学,浙江温州325608

出　　处：《浙江大学学报（农业与生命科学版）》2024年第5期817-826,共10页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家重点研发计划项目(2019YFD0901204,2019YFD0901205);浙江省重点研发计划项目(2019C02056);浙江省公益技术应用研究项目(LGN21C190005)。

摘　　要：为有效区分条石鲷自然群体和养殖群体,本研究随机抽取226尾条石鲷样本(自然群体126尾、养殖群体100尾),利用传统形态测量法和框架测量法分别测得7、36个可量性状,并对其进行差异性分析与逐步判别分析。差异性分析结果表明:采用传统形态测量法时,条石鲷6个可量性状(不包括体长)中有4个性状差异极显著(P<0.01)、2个性状差异显著(P<0.05);采用框架测量法时,36个可量性状中有31个性状差异极显著(P<0.01)、5个性状差异显著(P<0.05)。说明条石鲷自然群体和养殖群体的形态特征存在显著差异,差异主要集中在头部、躯干和腹鳍。逐步判别分析结果表明:基于传统形态测量法和框架测量法交叉验证后的判别正确率分别为97.8%和94.7%,基于2种方法相结合的综合分析交叉验证后的判别正确率为99.6%。上述研究结果表明,利用形态学方法对条石鲷自然群体和养殖群体进行判别是可行的,并且,结合多种形态可量性状的综合判别方式的判别结果更准确。In order to effectively distinguish the natural population from the cultured population of Oplegnathus fasciatus,this study randomly selected 226 samples(126 from the natural population and 100 from the cultured population)and measured seven and thirty-six measurable traits by traditional morphometry and the truss network,respectively,and carried out difference analysis and stepwise discriminant analysis.The results of difference analysis showed that four of the six measurable traits(excluding body length)were extremely significantly different(P<0.01),and two of them were significantly different(P<0.05)according to traditional morphometry,while 31 of 36 measurable traits were extremely significantly different(P<0.01)and five of them were significantly different(P<0.05)according to the truss network.These results indicated that there were significant differences in the morphological characteristics between the natural and cultured populations,mainly in the head,trunk and pelvic fin.The results of stepwise discriminant analysis showed that the correct rate of discrimination were 97.8%and 94.7%,respectively,after cross-validation based on the traditional morphometry and truss network,and the correct rate of discrimination was 99.6%after cross-validation based on the comprehensive analysis combined with the two methods.The above results showed that it is feasible to discriminate the natural and cultured populations via morphological methods,and the results of the comprehensive discrimination can be more accurate when various morphologically measurable traits were combined.

关 键 词：条石鲷 群体判别 框架测量法 逐步判别分析 

分 类 号：S917.4[农业科学—水产科学]