Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신경훈 | - |
dc.date.accessioned | 2023-06-01T00:45:09Z | - |
dc.date.available | 2023-06-01T00:45:09Z | - |
dc.date.issued | 2022-07 | - |
dc.identifier.citation | Environmental Science & Technology, v. 56, NO. 15, Page. 10808-10817 | - |
dc.identifier.issn | 0013-936X;1520-5851 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acs.est.2c02532 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/181794 | - |
dc.description.abstract | We coupled compound-specific isotopic analyses of nitrogen (N) in amino acids ((delta N-15(Glu), (delta N-15(Phe)) and mercury stable isotopes ((5202Hg, delta Hg-199) to quantify ecological traits governing the concentration, variability, and source of Hg in largemouth bass (LB) and pike gudgeon (PG) across four rivers, South Korea. PG displayed uniform Hg concentration (56-137 ng/g), trophic position (TPcorrected; 2.6-3.0, n = 9), and N isotopes in the source amino acid ((delta(15)NPhe; 7-13 parts per thousand), consistent with their specialist feeding on benthic insects. LB showed wide ranges in Hg concentration (45-693 ng/g), TPcorrected (2.8-3.8, n = 14), and (delta(15)NPhe (1.3-16 parts per thousand), reflecting their opportunistic feeding behavior. Hg sources assessed using Hg isotopes reveal low and uniform delta 199Hg in PG (0.20-0.49 parts per thousand), similar to delta 199Hg reported in sediments. LB displayed site-specific (5202Hg (-0.61 to -0.04 parts per thousand ) and delta 199Hg (0.53-1.09 parts per thousand). At the Yeongsan River, LB displayed elevated delta 199Hg and low (delta N-15(Phe), consistent with Hg and N sourced from the atmosphere. LB at the Geum River displayed low delta 199Hg and high (delta(15)NPhe, both similar to the isotope values of anthropogenic sources. Our results suggest that a specialist fish (PG) with consistent ecological traits and Hg concentration is an effective bioindicator species for Hg. When accounting for Hg sources, however, LB better captures site-specific Hg sources. | - |
dc.description.sponsorship | No conflict of interest to declare. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (Grant Numbers NRF-2020R1A4A1018818, NRF-2021R1C1C1008429) and the National Institute of Environmental Research R & D of the Korean Government (NIER-2022-01-01-074) . | - |
dc.language | en | - |
dc.publisher | American Chemical Society | - |
dc.subject | mercury | - |
dc.subject | stable isotope | - |
dc.subject | compound-specific isotope | - |
dc.subject | river | - |
dc.subject | fish | - |
dc.title | Ecological Traits of Fish for Mercury Biomonitoring: Insights from Compound-Specific Nitrogen and Stable Mercury Isotopes | - |
dc.type | Article | - |
dc.relation.no | 15 | - |
dc.relation.volume | 56 | - |
dc.identifier.doi | 10.1021/acs.est.2c02532 | - |
dc.relation.page | 10808-10817 | - |
dc.relation.journal | Environmental Science & Technology | - |
dc.contributor.googleauthor | Yang, Yo Han | - |
dc.contributor.googleauthor | Kwon, Sae Yun | - |
dc.contributor.googleauthor | Tsui, Martin Tsz-Ki | - |
dc.contributor.googleauthor | Motta, Laura C. | - |
dc.contributor.googleauthor | Washburn, Spencer J. | - |
dc.contributor.googleauthor | Park, Jaeseon | - |
dc.contributor.googleauthor | Kim, Min-Seob | - |
dc.contributor.googleauthor | Shin, Kyung-Hoon | - |
dc.sector.campus | E | - |
dc.sector.daehak | 과학기술융합대학 | - |
dc.sector.department | 해양융합공학과 | - |
dc.identifier.pid | shinkh | - |
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