气候变化领域集成服务门户(CCPortal): Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans

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DOI	10.1073/pnas.2111205118
	Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans
	Tseng C.-M.; Ang S.-J.; Chen Y.-S.; Shiao J.-C.; Lamborg C.H.; He X.; Reinfelder J.R.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:38
英文摘要	Bluefin tuna (BFT), highly prized among consumers, accumulate high levels of mercury (Hg) as neurotoxic methylmercury (MeHg). However, how Hg bioaccumulation varies among globally distributed BFT populations is not understood. Here, we show mercury accumulation rates (MARs) in BFT are highest in the Mediterranean Sea and decrease as North Pacific Ocean > Indian Ocean > North Atlantic Ocean. Moreover, MARs increase in proportion to the concentrations of MeHg in regional seawater and zooplankton, linking MeHg accumulation in BFT to MeHg bioavailability at the base of each subbasin's food web. Observed global patterns correspond to levels of Hg in each ocean subbasin; the Mediterranean, North Pacific, and Indian Oceans are subject to geogenic enrichment and anthropogenic contamination, while the North Atlantic Ocean is less so. MAR in BFT as a global pollution index reflects natural and human sources and global thermohaline circulation. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Bioavailability; Bluefin tuna; Mercury accumulation rate; Mercury bioaccumulation; Ocean pollution
语种	英语
scopus关键词	mercury; sea water; Article; Atlantic Ocean; bioaccumulation; bioavailability; bluefin tuna; concentration (parameter); controlled study; environmental enrichment; food web; Indian Ocean; Mediterranean Sea; nonhuman; Pacific Ocean; sea pollution; thermohaline circulation; tuna; water contamination; zooplankton
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238642
作者单位	Institute of Oceanography, National Taiwan University, Taipei, 10617, Taiwan; Ocean Sciences Department, Institute of Marine Sciences, University of California, Santa Cruz, CA 95064, United States; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, United States
推荐引用方式 GB/T 7714	Tseng C.-M.,Ang S.-J.,Chen Y.-S.,et al. Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans[J],2021,118(38).
APA	Tseng C.-M..,Ang S.-J..,Chen Y.-S..,Shiao J.-C..,Lamborg C.H..,...&Reinfelder J.R..(2021).Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans.Proceedings of the National Academy of Sciences of the United States of America,118(38).
MLA	Tseng C.-M.,et al."Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans".Proceedings of the National Academy of Sciences of the United States of America 118.38(2021).