Sediment Oxygen Consumption Rate and Hydrogen Sulfide Release by Dissolved Oxygen Depletion in Hypoxic Area of the Gamak Bay, Korea

DC Field Value Language
dc.contributor.author 이태희 -
dc.contributor.author 손영백 -
dc.date.accessioned 2020-07-15T19:33:22Z -
dc.date.available 2020-07-15T19:33:22Z -
dc.date.created 2020-02-11 -
dc.date.issued 2016-11-05 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/24366 -
dc.description.abstract This study investigated sediment oxygen consumption rates and geochemical characteristics of sediment in hypoxic area of the Gamak Bay based on the chamber experiments and geochemical analyses. The organic carbon contents of surface sediment in the Gamak Bay showed that the inner bay area has higher organic carbon content than those of the outer bay. They toward the outer bay, contents dropped off. The vertical profiles of calcium carbonate (CaCO3) content at piston core sediment assumed that the hypoxia have been frequently occurred during past century in the northern inner bay. The benthic chamber experiments were conducted in February, May, August and November 2010, 2011 in the hypoxic area of the Gamak Bay. In the sediment incubation experiment with chamber at site C3 in the northern inner bay and site C17 in the southern outer bay, the sediment oxygen consumption rate ranged from 3.98 mmol m-2 d-1 to 12.43 mmol m-2 d-1 and 3.28 mmol m-2 d-1to 8.18 mmol m-2 d-1, respectively. When the oxygen was completely depleted, the toxic hydrogen sulfide was released with 1.38 mmol m-2 d-1 and 1.3 mmol m-2 d-1, respectively.t in the Gamak Bay showed that the inner bay area has higher organic carbon content than those of the outer bay. They toward the outer bay, contents dropped off. The vertical profiles of calcium carbonate (CaCO3) content at piston core sediment assumed that the hypoxia have been frequently occurred during past century in the northern inner bay. The benthic chamber experiments were conducted in February, May, August and November 2010, 2011 in the hypoxic area of the Gamak Bay. In the sediment incubation experiment with chamber at site C3 in the northern inner bay and site C17 in the southern outer bay, the sediment oxygen consumption rate ranged from 3.98 mmol m-2 d-1 to 12.43 mmol m-2 d-1 and 3.28 mmol m-2 d-1to 8.18 mmol m-2 d-1, respectively. When the oxygen was completely depleted, the toxic hydrogen sulfide was released with 1.38 mmol m-2 d-1 and 1.3 mmol m-2 d-1, respectively. -
dc.description.uri 1 -
dc.language English -
dc.publisher PICES -
dc.relation.isPartOf PICES 2016 annual meeting -
dc.title Sediment Oxygen Consumption Rate and Hydrogen Sulfide Release by Dissolved Oxygen Depletion in Hypoxic Area of the Gamak Bay, Korea -
dc.type Conference -
dc.citation.conferencePlace US -
dc.citation.endPage 322 -
dc.citation.startPage 322 -
dc.citation.title PICES 2016 annual meeting -
dc.identifier.bibliographicCitation PICES 2016 annual meeting, pp.322 -
dc.description.journalClass 1 -
Appears in Collections:
Jeju Research Institute > Jeju Marine Research Center > 2. Conference Papers
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