N-2 production through denitrification and anammox across the continental margin (shelf-slope-rise) of the Ulleung Basin, East Sea SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Na, Taehee | - |
dc.contributor.author | Thamdrup, Bo | - |
dc.contributor.author | Kim, Bomina | - |
dc.contributor.author | Kim, Sung-Han | - |
dc.contributor.author | Vandieken, Verona | - |
dc.contributor.author | Kang, Dong-Jin | - |
dc.contributor.author | Hyun, Jung-Ho | - |
dc.date.accessioned | 2020-04-16T09:25:16Z | - |
dc.date.available | 2020-04-16T09:25:16Z | - |
dc.date.created | 2020-01-28 | - |
dc.date.issued | 2018-03 | - |
dc.identifier.issn | 0024-3590 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/1000 | - |
dc.description.abstract | Experimental determinations of nitrogen cycling in deep-sea sediments are strongly underrepresented in the databases. To investigate the total N-2 production rates and relative contribution of denitrification and anaerobic ammonium oxidation (anammox) to benthic fixed-N removal processes, we conducted N-15 isotope-labeling incubation experiments in whole cores and slurries at nine stations across the continental margin from the shelf (< 200 m) and into the deep (> 2000 m) Ulleung Basin (UB) in the East Sea. The total N-2 production rates (anammox plus denitrification) in the center of the UB (8.4 +/- 0.2 mol N m(-2) h(-1)) were high compared to most other deep-sea sediments at similar water depths. Denitrification rates decreased from the shelf (7.6 +/- 0.6 mu mol N m(-2) h(-1)) to the basin (3.2 +/- 0.4 mu mol N m(-2) h(-1)), in proportion to benthic oxygen consumption, whereas anammox rates remained relatively constant or even increased slightly (1.3-4.1 mu mol N m(-2) h(-1)). The contribution of anammox to the total N-2 production (ra) increased with increasing water depth from the shelf (ca. 17%) to the basin (ca. 56%). The enhanced ra in the center of the UB was associated with an increased availability of nitrite for anammox, which was likely a result of the competitive suppression of denitrification by manganese reduction under MnO2-rich conditions. Our results emphasize the importance of anammox as a sink for reactive nitrogen in deep-sea sediments and contribute toward a mechanistic understanding of the factors controlling benthic reactive nitrogen loss in the ocean. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.subject | ANAEROBIC AMMONIUM OXIDATION | - |
dc.subject | ORGANIC-CARBON OXIDATION | - |
dc.subject | SULFATE REDUCTION | - |
dc.subject | BENTHIC DENITRIFICATION | - |
dc.subject | SURFACE SEDIMENTS | - |
dc.subject | MARINE-SEDIMENTS | - |
dc.subject | OXYGEN DYNAMICS | - |
dc.subject | FIXED-NITROGEN | - |
dc.subject | MANGANESE | - |
dc.subject | ESTUARINE | - |
dc.title | N-2 production through denitrification and anammox across the continental margin (shelf-slope-rise) of the Ulleung Basin, East Sea | - |
dc.type | Article | - |
dc.citation.endPage | S424 | - |
dc.citation.startPage | S410 | - |
dc.citation.title | LIMNOLOGY AND OCEANOGRAPHY | - |
dc.citation.volume | 63 | - |
dc.contributor.alternativeName | 강동진 | - |
dc.identifier.bibliographicCitation | LIMNOLOGY AND OCEANOGRAPHY, v.63, pp.S410 - S424 | - |
dc.identifier.doi | 10.1002/lno.10750 | - |
dc.identifier.scopusid | 2-s2.0-85036581053 | - |
dc.identifier.wosid | 000427077300028 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | ANAEROBIC AMMONIUM OXIDATION | - |
dc.subject.keywordPlus | ORGANIC-CARBON OXIDATION | - |
dc.subject.keywordPlus | SULFATE REDUCTION | - |
dc.subject.keywordPlus | BENTHIC DENITRIFICATION | - |
dc.subject.keywordPlus | SURFACE SEDIMENTS | - |
dc.subject.keywordPlus | MARINE-SEDIMENTS | - |
dc.subject.keywordPlus | OXYGEN DYNAMICS | - |
dc.subject.keywordPlus | FIXED-NITROGEN | - |
dc.subject.keywordPlus | MANGANESE | - |
dc.subject.keywordPlus | ESTUARINE | - |
dc.relation.journalWebOfScienceCategory | Limnology | - |
dc.relation.journalWebOfScienceCategory | Oceanography | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Marine & Freshwater Biology | - |
dc.relation.journalResearchArea | Oceanography | - |