西沙群岛鹦嘴鱼科耳石形态学物种鉴定的可行性研究  

FEASIBILITY STUDY ON SPECIES IDENTIFICATION OF SCARIDAE FISHES FROM XISHA ISLANDS,CHINA,BASED ON OTOLITH MORPHOLOGY

作　　者：康志鹏 李纯厚[1,2] 李纯然 王腾 赵金发 石娟 刘永 KANG Zhi-Peng;LI Chun-Hou;LI Chun-Ran;WANG Teng;ZHAO Jin-Fa;SHI Juan;and LIU Yong(Key Laboratory of South China Sea Fishery Resources Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,Observation and Research Station of Pearl River Estuary Ecosystem,Guangdong Province,Guangdong Provincial Key Laboratory of Fishery Ecology and Environment,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China;Scientific Observation and Research Station of Xisha Island Reef Fishery Ecosystem of Hainan Province/Key Laboratory of Efficient Utilization and Processing of Marine Fishery Resources of Hainan Province/Sanya Tropical Fisheries Research Institute,Sanya 572018,China;Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]中国水产科学研究院南海水产研究所,农业农村部南海渔业资源开发利用重点实验室,广东珠江口生态系统野外科学观测研究站,广东省渔业生态环境重点实验室,广州510300 [2]西沙岛礁渔业生态系统海南省野外科学观测研究站/海南省深远海渔业资源高效利用与加工重点实验室/三亚热带水产研究院,三亚572018 [3]华中农业大学,武汉430070

出　　处：《水生生物学报》2024年第3期469-478,共10页Acta Hydrobiologica Sinica

基　　金：海南省自然科学基金(322CXTD530、323MS124和322MS153);农业农村部财政专项(NFZX2021);广东省基础与应用基础研究重大项目课题(2019B030302004-05);中国水产科学研究院中央级公益性科研院所基本科研业务费专项资金(2023TD16);中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项资金(2021SD04和2019TS28)资助。

摘　　要：研究于2018—2021年在西沙群岛海域采集鹦嘴鱼样本,通过传统形态测量法选取的19个耳石形态指标和椭圆傅里叶分析法选取的77个椭圆傅里叶系数对其进行鉴别分析,探究耳石形态在鹦嘴鱼科物种鉴别中的可行性。结果表明,仅使用耳石形态指标鉴别鹦嘴鱼时综合判别率为56.8%,低于仅使用椭圆傅里叶系数的63.1%和两种参数结合的75.7%;而结合两种参数对其4个属的综合判别率为88.6%,其中绚鹦嘴鱼属的判别率达到100%;15种鹦嘴鱼的耳石形态聚类结果与已有研究的进化树结果基本一致,特别是属层面的聚类,呈现高度一致,证实了耳石形态具有遗传的属性,也说明了耳石形态学用于鱼类物种鉴定的可行性。研究结果将为西沙群岛鹦嘴鱼的基础研究提供科学资料,为鹦嘴鱼资源的保护与开发提供理论依据。In this study,parrotfish were obtained in the sea area of Xisha Islands from 2018 to 2021.Their identification was analyzed by 19 otolith morphological indicators selected by traditional morphometry,along with 77 elliptical Fourier coefficients(eFcs)selected by elliptical Fourier analysis.This comprehensive approach aimed to investigate the feasibility of otolith morphology in the identification of species in the Scaridea family.The results showed that the comprehensive discriminant rate was 56.8%when using only otolith morphological indicators to identify parrotfish.This rate was lower than the 63.1%achieved by utilizing only eFcs and the impressive 75.7%when combining both parameters.However,the combination of these two parameters significantly enhanced the discriminant rate to 88.6%for 4 genera,with Calotomus achieving a perfect 100%discrimination rate.The clustering results based on otolith morphology for the 15 Scaridea species largely align with the evolutionary tree results obtained from the study of mitochondrial genes.This agreement,especially at the genus level,showing a high degree of agreement,confirming that otolith morphology has genetic properties and illustrating the feasibility of otolith morphology for fish species identification.The results of this study contribute essential scientific information to the basic research of parrotfish in Xisha Islands and establish a theoretical foundation for the conservation and development of parrotfish resources.

关 键 词：耳石形态 传统形态测量法 椭圆傅里叶分析法 鹦嘴鱼 

分 类 号：S932.4[农业科学—渔业资源] Q174[农业科学—水产科学]