Fish Composition and Diversity of Four Coral Reefs in the South China Sea Based on Hand-Line Catch
文献类型： 外文期刊
作者： Li, Yuanjie 1 ; Chen, Zuozhi 1 ; Zhang, Jun 1 ;
作者机构： 1.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Fishery Resources Res Dept, Guangzhou 510300, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Peoples R China
4.Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China
关键词： coral reef fish; dominant species; fish diversity; community structure; South China Sea; multivariate analysis
期刊名称：JOURNAL OF MARINE SCIENCE AND ENGINEERING （ 影响因子：2.744； 五年影响因子：2.727 ）
ISSN：
年卷期： 2022 年 10 卷 1 期
页码：
收录情况： SCI
摘要： To improve the overall understanding of the fish diversity and spatial patterns of major coral reefs in the South China Sea, fish assemblage composition, dominant species, biodiversity indices, and multivariate analysis of community structure were reported for four major coral reefs based on hand-line survey data in May and September 2018. A total of five orders, 21 families, 45 genera and 121 species of fish were recorded with Perciformes (78.5%) being the most diverse. The highest number (5) of dominant species was found near Chenhang Island while the lowest (2) number was detected at Zhubi Reef. The highest abundance index (7.21) occurred at Zhubi Reef, while the Shannon-Wiener diversity (4.80), Pielou's evenness (0.81), and Simpson's dominance (0.95) indexes were all highest at Qiliangyu Island. Based on cluster analysis and non-metric multi-dimensional scaling (NMDS), fish communities varied more spatially than seasonally. Our results led us to hypothesize that the habitat complexity and level of anthropogenic disturbance were the main factors affecting the composition of reef-dwelling fish on each coral reef. Topography was likely responsible for most variation in the spatial pattern of fish diversity.
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