广东海洋大学学报2026，Vol.46Issue(1)：84-92,9.DOI:10.3969/j.issn.1673-9159.2026.01.009
广东外伶仃海洋牧场及邻近海域鱼类功能多样性与环境驱动
Fish Functional Diversity and Environmental Drivers in Wailingding Marine Ranching and Adjacent Waters in Guangdong
摘要
Abstract
[Objective]This study aims to investigate the dynamic characteristics and driving mechanisms of fish community diversity in the Wailingding National Marine Ranching Demonstration Zone,Guangdong Province,and provide a scientific basis for assessing ecological health and optimizing fishery management.[Method]Four cruises were conducted in April 2020,September 2020,September 2021,and March 2023 to investigate fishery resources and environmental factors.Species diversity and functional diversity indices were calculated,and seasonal variations in fish communities and their relationships with environmental factors were discussed through Redundancy Analysis(RDA)and Mantel correlation analyses.[Results]The asynchronous trends were found between species diversity and functional diversity.Although the species richness index peaked in September 2021(3.495),the functional richness index(FRic)was significantly lower than that in other sampling periods(P<0.01).Spearman correlation analysis indicated a highly significant negative correlation between functional redundancy(FRed)and Pielou index(P<0.01),due to the community's maintenance of high functional redundancy throughout the survey period.RDA and Mantel analyses revealed that chlorophyll-a concentration and pH were the primary drivers of functional richness,while water depth significantly affected functional divergence(FDiv)(P<0.01).[Conclusions]The fish community in the Wailingding marine ranching adapts to environmental fluctuations primarily through high functional redundancy.Chlorophyll-a concentration,pH,and water depth are the key environmental factors driving functional diversity patterns.Monitoring based on functional traits can more accurately reflect the ecological health of marine ranching ecosystems.关键词
海洋牧场/人工鱼礁区/鱼类群落/功能性状/环境因子/珠江口/外伶仃岛海域Key words
marine ranching/artificial reef area/fish community/functional traits/environmental factors/Pearl River Estuary/Wailingding Island sea area分类
农业科技引用本文复制引用
杜世博,徐磊,陈丕茂,袁华荣,唐鹊辉,杜飞雁,张健,王雪辉..广东外伶仃海洋牧场及邻近海域鱼类功能多样性与环境驱动[J].广东海洋大学学报,2026,46(1):84-92,9.基金项目
国家重点研发计划(2024YFD2400602) （2024YFD2400602）
广东省现代化海洋牧场产业创新技术项目(2024-MRI-001-12) （2024-MRI-001-12）
广东省基础与应用基础研究基金(2022B1515250005) （2022B1515250005）
广东省重点领域研发计划项目(2020B1111030002) （2020B1111030002）
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(NO.2023TD06) （NO.2023TD06）
科技基础资源调查专项(2017FY201405) （2017FY201405）
