Impacts of long-line aquaculture of Pacific oysters (Crassostrea gigas) on sulfate reduction and diffusive nutrient flux in the coastal sediments of Jinhae-Tongyeong, Korea
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Title
- Impacts of long-line aquaculture of Pacific oysters (Crassostrea gigas) on sulfate reduction and diffusive nutrient flux in the coastal sediments of Jinhae-Tongyeong, Korea
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Author(s)
- Hyun, Jung-Ho; Kim, Sung-Han; Mok, Jin-Sook; Lee, Jae Seong; An, Sung-Uk; Lee, Won-Chan; Jung, Rae-Hong
- KIOST Author(s)
- Lee, Jae Seong(이재성)
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Alternative Author(s)
- 이재성
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Publication Year
- 2013-09-15
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Abstract
- We investigated the environmental impacts of long-line aquaculture of Pacific oysters (Crassostrea gigas) on sediment geochemistry and carbon oxidation by sulfate reduction and diffusive benthic nutrient flux in a coastal ecosystem in Korea. Inventories of the NH4+, and HPO42- at the farm site were 7.7-11.5 and 1.8-8.0 times higher, respectively, than those at a reference site. Sulfate reduction rates (SRRs) at the oyster farm were 2.4-5.2 times higher than SRRs at the reference site. The SRRs at the farm site were responsible for 48-99% (average 70%) of the total C oxidation in the sediment. The diffusive benthic fluxes of NH4+, and HPO42- at the oyster farm were comparable to 30-164% and 19-58%, respectively, of the N and P demands for primary production, and were responsible for the enhanced benthic microalgal biomass on the surface sediment. (C) 2013 Elsevier Ltd. All rights reserved.
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ISSN
- 0025-326X
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/3097
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DOI
- 10.1016/j.marpolbul.2013.07.004
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Bibliographic Citation
- MARINE POLLUTION BULLETIN, v.74, no.1, pp.187 - 198, 2013
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Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
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Subject
- ORGANIC-MATTER MINERALIZATION; EUTROPHIC DANISH FJORD; MARINE-SEDIMENTS; THAU LAGOON; CONTINENTAL-MARGIN; NITROGEN DYNAMICS; HYDROGEN-SULFIDE; MUSSEL CULTURE; BENTHIC FLUXES; SALT-MARSH
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Keywords
- Long-line oyster culture; Sulfate reduction; Benthic nutrient flux; Benthic-pelagic coupling; Fe and P cycles; Crassostrea gigas
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Type
- Article
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Language
- English
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Document Type
- Article
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