Mercury accumulation in hydrothermal vent mollusks from the southern Tonga Arc, southwestern Pacific Ocean

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dc.contributor.authorS Lee-
dc.contributor.authorSe Joo Kim-
dc.contributor.authorS J Ju-
dc.contributor.authorS J Pak-
dc.contributor.authorS K Son-
dc.contributor.authorJ Yang-
dc.contributor.authorS Han-
dc.date.accessioned2017-04-19T10:02:14Z-
dc.date.available2017-04-19T10:02:14Z-
dc.date.issued2015-
dc.identifier.issn0045-6535-
dc.identifier.uri10.1016/j.chemosphere.2015.01.006ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/12494-
dc.description.abstractWe provide the mercury (Hg) and monomethylmercury (MMHg) levels of the plume water, sulfide ore, sediment, and mollusks located at the hydrothermal vent fields of the southern Tonga Arc, where active volcanism and intense seismic activity occur frequently. Our objectives were: (1) to address the potential release of Hg from hydrothermal fluids and (2) to examine the distribution of Hg and MMHg levels in hydrothermal mollusks (mussels and snails) harboring chemotrophic bacteria. While high concentrations of Hg in the sediment and Hg, As, and Sb in the sulfide ore indicates that their source is likely hydrothermal fluids, the MMHg concentration in the sediment was orders of magnitude lower than the Hg (<0.001%). It suggests that Hg methylation may have not been favorable in the vent field sediment. In addition, Hg concentrations in the mollusks were much higher (10-100 times) than in other hydrothermal vent environments, indicating that organisms located at the Tonga Arc are exposed to exceedingly high Hg levels. While Hg concentration was higher in the gills and digestive glands than in the mantles and residues of snails and mussels, the MMHg concentrations in the gills and digestive glands were orders of magnitude lower (0.004-0.04%) than Hg concentrations. In summary, our results suggest that the release of Hg from the hydrothermal vent fields of the Tonga Arc and subsequent bioaccumulation are substantial, but not for MMHg.-
dc.publisherElsevier-
dc.titleMercury accumulation in hydrothermal vent mollusks from the southern Tonga Arc, southwestern Pacific Ocean-
dc.title.alternativeMercury accumulation in hydrothermal vent mollusks from the southern Tonga Arc, southwestern Pacific Ocean-
dc.typeArticle-
dc.citation.titleChemosphere-
dc.citation.numberC-
dc.citation.endPage253-
dc.citation.startPage246-
dc.citation.volume127-
dc.contributor.affiliatedAuthorSe Joo Kim-
dc.contributor.alternativeName이세용-
dc.contributor.alternativeName김세주-
dc.contributor.alternativeName주세종-
dc.contributor.alternativeName박상준-
dc.contributor.alternativeName손승규-
dc.contributor.alternativeName양지숙-
dc.contributor.alternativeName한승희-
dc.identifier.bibliographicCitationChemosphere, vol. 127, no. C, pp. 246-253-
dc.identifier.doi10.1016/j.chemosphere.2015.01.006-
dc.subject.keywordHydrothermal vents-
dc.subject.keywordMercury-
dc.subject.keywordMollusks-
dc.subject.keywordMonomethylmercury-
dc.subject.keywordTonga Arc-
dc.subject.localHydrothermal vent-
dc.subject.localHydrothermal vents-
dc.subject.localhydrothermal vent-
dc.subject.localmercury-
dc.subject.localMercury-
dc.subject.localmollusks-
dc.subject.localMollusks-
dc.subject.localmollusk-
dc.subject.localMonomethylmercury-
dc.subject.localTonga Arc-
dc.description.journalClassY-
Appears in Collections:
Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
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