https://scholars.lib.ntu.edu.tw/handle/123456789/606361
標題: | Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans | 作者: | Tseng C.-M Ang S.-J Chen Y.-S Shiao J.-C Lamborg C.H He X CHUN-MAO TSENG JEN-CHIEH SHIAO |
關鍵字: | Bioavailability;Bluefin tuna;Mercury accumulation rate;Mercury bioaccumulation;Ocean pollution;mercury;sea water;methylmercury derivative;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;adverse event;animal;female;food chain;male;metabolism;pollution;sea;water pollutant;Animals;Biological Availability;Environmental Pollution;Female;Food Chain;Male;Mercury;Methylmercury Compounds;Oceans and Seas;Seawater;Tuna;Water Pollutants, Chemical | 公開日期: | 2021 | 卷: | 118 | 期: | 38 | 來源出版物: | Proceedings of the National Academy of Sciences of the United States of America | 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. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114894736&doi=10.1073%2fpnas.2111205118&partnerID=40&md5=6a9c20ed78497ccbfc9c7715a90589a0 https://scholars.lib.ntu.edu.tw/handle/123456789/606361 |
ISSN: | 00278424 | DOI: | 10.1073/pnas.2111205118 |
顯示於: | 海洋研究所 |
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