广西科学院学报2026，Vol.42Issue(1)：90-99,10.DOI:10.13657/j.cnki.gxkxyxb.20260424.010
海南省东方市墩头湾和鱼鳞洲珊瑚礁健康评价
Health Assessment of Coral Reefs in Duntouwan and Yulinzhou,Dongfang City,Hainan Province
摘要
Abstract
To understand the status of Scleractinian coral resources and their ecological environment in the wa-ters of Duntouwan and Yulinzhou,Dongfang City,Hainan Province,this study conducted a survey in October 2023.A combination of technical methods,including boundary reconnaissance,transect method,quadrat method,and underwater image analysis,was used to investigate the marine environment and Scleractinian coral communities(Scleractinian coral coverage,recruitment,composition and structure,benthic organism density,etc.)in the two sea areas.A comprehensive assessment was also carried out on the ecosystem health of coral reefs.The results showed that the seawater quality of the two sea areas generally reached ClassⅡand above standards.The contents of suspended solids and chlorophyll-a in the Duntouwan sea area were both lower than those in the Yulinzhou sea area.The coverage rate of Scleractinian corals in the Duntouwan sea ar-ea reached 66.5%,while the coverage rate of Scleractinian corals in Yulinzhou was less than 45.0%due to the large proportion of sand and silt.A total of 39 Scleractinia corals species belonging to 18 genera and 10 families were observed in this survey.The coverage rates of Scleractinia corals in Duntouwan and Yulinzhou were 12.08%and 9.25%,respectively.The Shannon diversity index was 3.21 and 2.83,and the Pielou even-ness index was 0.96 and 0.87,respectively.The recruitment rate of Scleractinia corals was 0.43 ind./m2 and 0.07 ind./m2,respectively.The health index of coral reef ecosystem in the Duntouwan and the Yulinzhou were 52 and 45,respectively,both of which were in sub-health state,but the overall condition of the Duntou-wan was better than that of the Yulinzhou.In summary,the stability and restoration potential of the ecosys-tem in the Duntouwan are relatively high,and the coral reef ecosystem in the Yulinzhou sea area is more sen-sitive to human disturbance.It is suggested to strengthen long-term monitoring,promote coral reef protection management and artificial restoration according to local conditions through measures such as Scleractinian coral transplantation,artificial reef construction and improvement of sediment environment,so as to promote the sustainable recovery and healthy development of regional coral reef ecosystem.关键词
珊瑚礁生态系统/石珊瑚/海洋环境/生态资源/健康评价Key words
coral reef ecosystem/Scleractinia corals/marine environment/ecological resources/health assess-ment分类
海洋科学引用本文复制引用
郁强,邱立国,蔡文启,梁梅,吴钟解,李元超..海南省东方市墩头湾和鱼鳞洲珊瑚礁健康评价[J].广西科学院学报,2026,42(1):90-99,10.基金项目
国家科技基础资源调查专项(2022FY100603)资助. （2022FY100603）
