上海海洋大学学报2025，Vol.34Issue(3)：618-635,18.DOI:10.12024/jsou.20240404531
西沙群岛永乐四岛礁珊瑚礁区域鱼类物种组成及其差异
Fish species composition and differences in the coral reef area of the four islands in Yongle Atoll,Xisha Islands
摘要
Abstract
In order to investigate the species characteristics of coral reef fishes in the four islands in Yongle Atoll(Jinqing Island,Antelope Reef,Quanfu Island,and Yinyu Island)of Xisha Islands,this study was conducted on the coral reef fishes of the four islands from 2020 to 2023 by using hand-fishing,diving fishing,and underwater video methods.The species composition,similarity,and taxonomic diversity of coral reef fishes in the four islands were analyzed,incorporating data from the survey conducted on Yinyu Island from 2020 to 2021.Additionally,the feeding type and individual size of coral reef fishes in the four islands were examined in conjunction with relevant literature.The findings indicate that:(1)There are 260 species of coral reef fishes in the four islands of Yongle Atoll in recent years,belonging to 40 families in 10 orders of 2 classes.Perciformes emerges as the predominant order,with Labridae,Pomacentridae,and Chaetodontidae exhibiting the highest number of species.(2)The coral reef fishes from the four islands of Yongle Atoll were primarily composed of carnivorous fishes,with a prevalence of medium and small fishes and the coefficient of similarity was significantly lower for large fish than for small and medium fish,indicating that the four reefs have been affected by fishing to varying extents.(3)The proportions of carnivorous fish and large fish displayed the following order:Jinqing Island>Antelope Reef>Quanfu Island>Yinyu Island,and the average classification difference index(Δ+)followed the sequence:Jinqing Island(54.94)>Antelope Reef(53.30)>Quanfu Island(52.63)>Yinyu Island(52.05),which suggested a significant difference in the degree of human disturbance levels among four islands,with the disturbance ranking as Jinqing Island<Antelope Reef<Quanfu Island<Yinyu Island.The study conducted an in-depth analysis of the coral reef fish composition at the four islands in Yongle Atoll,analyzed the influence of human disturbance,which will offer a theoretical basis for promoting the sustainable development of coral reef fish resources in the Xisha Islands and provide references for the conservation and management of coral reef fish.关键词
西沙群岛/永乐群岛/珊瑚礁鱼类/分类多样性/人类扰动Key words
Xisha Islands/Yongle Atoll/coral reef fishes/taxonomic diversity/human disturbance分类
农业科技引用本文复制引用
康志鹏,刘永,李纯厚,赵金发,石娟,王腾,谢宏宇,肖雅元,黄海..西沙群岛永乐四岛礁珊瑚礁区域鱼类物种组成及其差异[J].上海海洋大学学报,2025,34(3):618-635,18.基金项目
海南省自然科学基金(323MS124,322CXTD530) （323MS124,322CXTD530）
农业农村部财政专项(NHZX2024) （NHZX2024）
2023年海南热带海洋学院水产南繁联合开放课题(2023SCNFKF06) （2023SCNFKF06）
中国水产科学研究院基本科研业务费项目(2023TD16) （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(2021SD04,2019TS28) （2021SD04,2019TS28）
