Relationships between Fish Community Structure and Environmental Factors in the Nearshore Waters of Hainan Island, South China
文献类型： 外文期刊
作者： Luo, Zhengli 1 ; Yang, Changping 1 ; Wang, Liangming 1 ; Liu, Yan 1 ; Shan, Binbin 1 ; Liu, Manting 1 ; Chen, Cheng 1 ; Guo, Tao 4 ; Sun, Dianrong 1 ;
作者机构： 1.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
2.Zhejiang Ocean Univ, Sch Fisheries, Zhoushan 316022, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Marine Ranching, Guangzhou 510300, Peoples R China
4.Hainan Adm Off Season Plant Breeding & Seed Prod S, Sanya 572000, Peoples R China
关键词： Hainan Island; fish community; environmental factor; seasonal changes; change in dominant species; canonical correspondence analysis
期刊名称：DIVERSITY-BASEL （ 影响因子：2.4； 五年影响因子：2.5 ）
ISSN：
年卷期： 2023 年 15 卷 8 期
页码：
收录情况： SCI
摘要： The nearshore ecosystem of Hainan Island plays a crucial role as a breeding habitat for a wide variety of economically valuable fish species. Gaining insight into the structure of the fish community and the environmental factors that may impact them is highly significant in this marine region. This study collected fish data from 50 sampling sites using bottom trawling surveys. Methods including the swept area method, ecological indices, and abundance/biomass curve (ABC) analysis were employed to assess fish resource density and diversity. A comprehensive identification revealed a total of 363 fish species, encompassing 24 orders, 114 families, and 226 genera, with Perciformes being the dominant group. Spring exhibited higher fish abundance and biomass compared with autumn, with the southwestern waters as the primary concentration area. Acropoma japonicum, Decapterus maruadsi, and Navodon xanthopterus were dominant in spring, while Leiognathus bindus, Saurida tumbil, and Champsodon atridorsalis were dominant in autumn, indicating a seasonal shift towards smaller and lower-value fish species. A variability exceeding 80% was observed through SIMPER analysis, and a disrupted community structure was evident in the eastern and southern waters. Temperature and salinity were identified as primary environmental factors influencing the fish community. Overall, this study provides valuable insights into the nearshore fish community of Hainan Island, aiding in the understanding of its structure and dynamics.
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