气候变化领域集成服务门户(CCPortal): Seafloor microplastic hotspots controlle by deep-sea circulation

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DOI	10.1126/science.aba5899
	Seafloor microplastic hotspots controlle by deep-sea circulation
	Kane I.A.; Clare M.A.; Miramontes E.; Wogelius R.; Rothwell J.J.; Garreau P.; Pohl F.
发表日期	2020
ISSN	0036-8075
起始页码	1140
结束页码	1145
卷号	368 期号:6495
英文摘要	Although microplastics are known to pervade the global seafloor, the processes that control their dispersal and concentration in the deep sea remain largely unknown. Here, we show that thermohaline-driven currents, which build extensive seafloor sediment accumulations, can control the distribution of microplastics and create hotspots with the highest concentrations reported for any seafloor setting (190 pieces per 50 grams). Previous studies propose that microplastics are transported to the seafloor by vertical settling from surface accumulations; here, we demonstrate that the spatial distribution and ultimate fate of microplastics are strongly controlled by near-bed thermohaline currents (bottom currents). These currents are known to supply oxygen and nutrients to deep-sea benthos, suggesting that deep-sea biodiversity hotspots are also likely to be microplastic hotspots. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	microplastic; oxygen; bottom current; concentration (composition); deep sea; deep-sea benthos; marine sediment; oceanic circulation; plastic waste; seafloor; seafloor spreading; thermohaline circulation; Article; bioaccumulation; biodiversity; concentration (parameter); controlled study; deep sea; environmental impact; microplastic pollution; nutrient; priority journal; seafloor; sediment; surface property; thermohaline circulation
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244211
作者单位	School of Earth and Environmental Sciences, University of Manchester, Manchester, M13 9PL, United Kingdom; National Oceanography Centre, University of Southampton Waterfront Campus, Southampton, SO14 3ZH, United Kingdom; Faculty of Geosciences, University of Bremen, Bremen, 28359, Germany; MARUM-Center for Marine Environmental Sciences, University of Bremen, Bremen, 28359, Germany; Department of Geography, University of Manchester, Manchester, M13 9PL, United Kingdom; IFREMER, Univ. Brest, CNRS UMR 6523, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Plouzané, 29280, France; Department of Earth Sciences, Durham University, Durham, DH1 3LE, United Kingdom
推荐引用方式 GB/T 7714	Kane I.A.,Clare M.A.,Miramontes E.,et al. Seafloor microplastic hotspots controlle by deep-sea circulation[J],2020,368(6495).
APA	Kane I.A..,Clare M.A..,Miramontes E..,Wogelius R..,Rothwell J.J..,...&Pohl F..(2020).Seafloor microplastic hotspots controlle by deep-sea circulation.Science,368(6495).
MLA	Kane I.A.,et al."Seafloor microplastic hotspots controlle by deep-sea circulation".Science 368.6495(2020).