气候变化领域集成服务门户(CCPortal): Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula

CCPortal

DOI	10.1038/s41467-021-25235-w
	Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula
	Lin Y.; Moreno C.; Marchetti A.; Ducklow H.; Schofield O.; Delage E.; Meredith M.; Li Z.; Eveillard D.; Chaffron S.; Cassar N.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Since the middle of the past century, the Western Antarctic Peninsula has warmed rapidly with a significant loss of sea ice but the impacts on plankton biodiversity and carbon cycling remain an open question. Here, using a 5-year dataset of eukaryotic plankton DNA metabarcoding, we assess changes in biodiversity and net community production in this region. Our results show that sea-ice extent is a dominant factor influencing eukaryotic plankton community composition, biodiversity, and net community production. Species richness and evenness decline with an increase in sea surface temperature (SST). In regions with low SST and shallow mixed layers, the community was dominated by a diverse assemblage of diatoms and dinoflagellates. Conversely, less diverse plankton assemblages were observed in waters with higher SST and/or deep mixed layers when sea ice extent was lower. A genetic programming machine-learning model explained up to 80% of the net community production variability at the Western Antarctic Peninsula. Among the biological explanatory variables, the sea-ice environment associated plankton assemblage is the best predictor of net community production. We conclude that eukaryotic plankton diversity and carbon cycling at the Western Antarctic Peninsula are strongly linked to sea-ice conditions. © 2021, The Author(s).
语种	英语
scopus关键词	carbon; water; carbon; biodiversity; carbon flux; community composition; plankton; population decline; sea ice; sea surface temperature; species richness; Antarctica; Article; biodiversity; biomass production; carbon cycling; community structure; controlled study; diatom; DNA sequencing; environmental factor; genetic code; genetic model; machine learning; nonhuman; plankton; sea ice; sea surface temperature; species richness; carbon cycle; ecosystem; eukaryote; genetics; ice cover; metabolism; microflora; physiology; plankton; temperature; Antarctic Peninsula; Antarctica; West Antarctica; Bacillariophyta; Dinophyceae; Eukaryota; Antarctic Regions; Biodiversity; Carbon; Carbon Cycle; Diatoms; Ecosystem; Eukaryota; Ice Cover; Microbiota; Plankton; Temperature
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250637
作者单位	Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC, United States; Université de Brest—UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des sciences de l’environnement marin—IUEM, Rue Dumont D’Urville, Plouzané, France; Environmental Research Center, Duke Kunshan University, Kunshan, China; Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Rutgers University’s Center for Ocean Observing Leadership (RU COOL), Department of Marine and Coastal Sciences, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ, United States; Université de Nantes, CNRS UMR 6004, LS2N, Nantes, France; British Antarctic Survey, Cambridge, United Kingdom; Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Research Federation for the Study of Global Ocean Syst...
推荐引用方式 GB/T 7714	Lin Y.,Moreno C.,Marchetti A.,et al. Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula[J],2021,12(1).
APA	Lin Y..,Moreno C..,Marchetti A..,Ducklow H..,Schofield O..,...&Cassar N..(2021).Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula.Nature Communications,12(1).
MLA	Lin Y.,et al."Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula".Nature Communications 12.1(2021).