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  4. 海洋生物分类与系统演化实验室
Assessing the changes in marine microalgae diversity in the Nanji Islands Nature Reserve over the past decades using sediment eDNA

文献类型：期刊论文

作者Li, Haotian7; Xu, Alan Ningyuan2; Yang, Zaibao7; Lei, Yanli1,5,6,7; Chen, Jiaxin7; Zhan, Zifeng7; Xu, Kuidong7; Li, Tiegang4; Xie, Shangwei3
刊名FRONTIERS IN MARINE SCIENCE
出版日期2024-09-24
卷号11页码:12
关键词Nanji Islands Nature Reserve eDNA marine microalgae molecular diversity environmental indicators
DOI10.3389/fmars.2024.1466434
通讯作者Lei, Yanli(leiyanli@qdio.ac.cn) ; Li, Tiegang(tgli@fio.org.cn)
英文摘要The Nanji Islands, designated as one of China's national nature reserves, are renowned for their abundant microalgal resources. Changes in microalgae can serve as indicators of marine environmental shifts. Despite this significance, the absence of comprehensive historical records on microalgal diversity has limited the evaluation of marine environmental protection efforts. This study addresses this gap by analyzing surface sediments and sediment cores from the Nanji Islands, utilizing 210Pb dating and employing environmental DNA (eDNA) technology to trace historical shifts in the molecular diversity of microalgae. Chloroplast gene fragments were amplified using rbcL primers, and 210Pb dating determined the deepest sediment layer (78-80 cm) to date back to 1994. From the 70-72 cm layer to the 60-62 cm layer, the number of microalgal reads increased rapidly from 27,716 to 65,143, signifying enhanced abundance over the 10 years following the establishment of the nature reserve. This was followed by a deceleration in microalgal abundance growth over the subsequent 20 years, potentially reflecting variations in primary production of microalgae. Concurrently, the rise in operational taxonomic units (OTUs) and the Margalef index suggest a boost in microalgal diversity, which may be attributed to improvements in the marine environment. The microalgal community composition has shifted from a dominance of Dinoflagellata and Streptophyta to a predominance of Bacillariophyta, the change in phosphate would be one of the impact factors worth noting. This study provides foundational data on the historical changes in microalgae in the Nanji Islands and serves as a reference for exploring the relationship between environmental conditions and microalgal dynamics.
WOS关键词HARMFUL ALGAL BLOOMS ; COMMUNITY STRUCTURE ; BENTHIC MICROALGAE ; INTERTIDAL ZONE ; ANCIENT DNA ; IDENTIFICATION ; TEMPERATURE ; SEQUENCES ; TOXICITY ; POLLEN
资助项目National Science Foundation of China[LSKJ202204900] ; Strategic Priority Research Program of the Chinese Academy of Sciences[U1906211] ; Science and Technology Program of Nanji Islands National Marine Nature Reserve Administration[XDB42000000] ; [NJKJ-2021-006]
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:001327939300001
出版者FRONTIERS MEDIA SA
源URL[http://ir.qdio.ac.cn/handle/337002/199261]  
专题海洋研究所_海洋生物分类与系统演化实验室
通讯作者Lei, Yanli; Li, Tiegang
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
2.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Peoples R China
3.Nanji Isl Natl Marine Nat Reserve Adm, Wenzhou, Peoples R China
4.MNR, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
7.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao Key Lab Marine Biodivers & Conservat, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Li, Haotian,Xu, Alan Ningyuan,Yang, Zaibao,et al. Assessing the changes in marine microalgae diversity in the Nanji Islands Nature Reserve over the past decades using sediment eDNA[J]. FRONTIERS IN MARINE SCIENCE,2024,11:12.
APA Li, Haotian.,Xu, Alan Ningyuan.,Yang, Zaibao.,Lei, Yanli.,Chen, Jiaxin.,...&Xie, Shangwei.(2024).Assessing the changes in marine microalgae diversity in the Nanji Islands Nature Reserve over the past decades using sediment eDNA.FRONTIERS IN MARINE SCIENCE,11,12.
MLA Li, Haotian,et al."Assessing the changes in marine microalgae diversity in the Nanji Islands Nature Reserve over the past decades using sediment eDNA".FRONTIERS IN MARINE SCIENCE 11(2024):12.

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来源：海洋研究所

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