海洋科学2025，Vol.49Issue(11)：38-52,15.DOI:10.11759/hykx20250216001
高通量测序分析福建平潭近海夜光藻藻华对海洋浮游生物群落多样性的影响效应
High-throughput sequencing analysis of the effects of Nocti-luca scintillans blooms on plankton diversity in coastal waters of Pingtan,Fujian
摘要
Abstract
Noctiluca scintillans blooms frequently occur in the coastal waters of China;however,the impact of N.scintillans on the marine planktonic community structure and diversity remains unclear.In this study,high-throughput sequencing was employed to investigate the effects of high-density N.scintillans on the community structure and diversity of coastal planktonic organisms in the coastal waters of Pingtan,encompassing prokaryotes and eukaryotes.The diversity and number of species at the bloom stations were significantly lower than those at the non-bloom stations.Among prokaryotes,Proteobacteria dominated at all stations,and Acinetobacter replaced Yoonia-Loktanella at the bloom stations as the dominant genus.Among eukaryotes,Dinoflagellata replaced Ar-thropoda as the dominant phylum at the bloom stations,and the relative abundance of planktonic copepods,such as Oithona similis and Paracalanus parvus,at the bloom stations was significantly lower than those at the non-bloom stations;however,Parallelostrombidium conicum became the second most abundant species at the bloom stations.Correlation analysis indicated that algal-associated bacteria(e.g.,Acinetobacter,Thioclava,Marivita,and Flavo-bacterium)were highly correlated with N.scintillans,whereas most eukaryotic algae,including chlorophyta,dia-toms,and other dinoflagellates,were negatively correlated with N.scintillans.The results demonstrated that a high density of N.scintillans has a significant impact on the structure and diversity of marine planktonic organisms.Moreover,for prokaryotes,algal-associated bacteria become the dominant bacterial group at the bloom stations,and they may play a key role in the N.scintillans bloom decline stage.However,for eukaryotes,the feeding pressure of N.scintillans may be the primary reason for the significant decline in the diversity of marine phytoplankton and zooplankton.关键词
有害藻华/夜光藻(Noctiluca scintillans)/浮游生物多样性/高通量测序Key words
harmful algal blooms/Noctiluca scintillans/plankton biodiversity/high-throughput sequencing分类
海洋科学引用本文复制引用
陈龙,王世永,王紫阳,任坤磊,李晓东,张伟妮,亢振军,柳阳,王康,林建杰..高通量测序分析福建平潭近海夜光藻藻华对海洋浮游生物群落多样性的影响效应[J].海洋科学,2025,49(11):38-52,15.基金项目
国家自然科学基金青年基金资助项目(42106203) （42106203）
福建省自然科学基金面上项目(2023J01495) （2023J01495）
广西北部湾海洋环境变化与灾害研究重点实验室开放课题(2024KF03) （2024KF03）
广东省应用海洋生物学重点实验室开放课题(2023B1212060047) National Natural Science Foundation of China,No.42106203 （2023B1212060047）
Natural Science Foundation of Fujian,No.2023J01495 （）
Guangxi Key La-boratory of Marine Environmental Change and Disaster in Beibu Gulf,Beibu Gulf University,No.2024KF03 （）
Science and Technology Planning Project of Guangdong Province,No.2023B1212060047 （）
