首页|西沙群岛10种鹦嘴鱼鱼体形态学研究

西沙群岛10种鹦嘴鱼鱼体形态学研究

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为探究鹦嘴鱼鱼体形态的主要种间差异及其在物种鉴别中的重要作用,于2019-2022年在西沙群岛海域采集到10种鹦嘴鱼,选取24个形态学性状对其进行测量,采用多元分析方法对鹦嘴鱼物种进行形态差异判别分析.单因素方差分析结果表明,鹦嘴鱼种间所有形态学指标均存在显著性差异(P＜0.05);主成分分析提取了 7个特征值大于1的形态学指标,累积方差贡献率为66.86％,各物种间的形态差异主要表现在反映食性和游泳能力的特征上;采用判别分析方法对所有鹦嘴鱼样本进行判别,综合判别率为81.1％;10种鹦嘴鱼的形态学聚类结果与鱼类分类结果一致,与已有研究的进化树结果差异显著,说明鹦嘴鱼的表型特征除了受遗传因素控制外,也会受环境因素影响.
A morphological study on ten parrotfish species from Xisha Islands,China
In order to investigate the main differences in the fish body morphology of parrotfish among their species and their important role in species identification,we had collected ten parrotfish species in the Xisha Islands waters from 2019-2022,and selected 24 morphological traits for measurements.Then we used multivariate analyses to discriminate the morphological dif-ferences among those species.One-way ANOVA results show significant differences among parrotfish species for all morpholo-gical indicators(P＜0.05).Seven morphological indicators with eigenvalues greater than 1 had been extracted.The cumulative variance contribution was 66.86％,and the morphological differences among species mainly lay in the characteristics reflecting feeding and swimming abilities.Discriminant analysis was used to discriminate those samples,and the combined discrimination rate was 81.1％.The morphological clustering results of the ten parrotfish species were consistent with those offish classification but differred significantly from those of evolutionary tree in previous study,which indicates that the phenotypic characteristics of parrotfish can be influenced by environmental factors in addition to genetic control.

ParrotfishCoral reef fishFish morphologyXisha Islands

康志鹏、刘永、李纯厚、赵金发、石娟、王腾

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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,广东广州 510300

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,海南三亚 572018

鹦嘴鱼 珊瑚礁鱼类 鱼体形态学 西沙群岛

海南省自然科学基金海南省自然科学基金农业农村部财政专项广东省基础与应用基础研究重大项目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资助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资助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资助

322CXTD530323MS124NFZX20212019B030302004-052023TD162021SD042019TS28

2024

10.12131/20230157

南方水产科学
中国水产科学研究院南海水产研究所

南方水产科学

CSTPCD北大核心
影响因子：1.591
ISSN：2095-0780
年,卷(期)：2024.20(2)
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