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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
- Authors
- Hyun, Jung-Ho; Kim, Sung-Han; Mok, Jin-Sook; Lee, Jae Seong; An, Sung-Uk; Lee, Won-Chan; Jung, Rae-Hong
- Issue Date
- Sep-2013
- Publisher
- Pergamon Press Ltd.
- Keywords
- Long-line oyster culture; Sulfate reduction; Benthic nutrient flux; Benthic-pelagic coupling; Fe and P cycles; Crassostrea gigas
- Citation
- Marine Pollution Bulletin, v.74, no.1, pp.187 - 198
- Indexed
- SCIE
SCOPUS
- Journal Title
- Marine Pollution Bulletin
- Volume
- 74
- Number
- 1
- Start Page
- 187
- End Page
- 198
- ISSN
- 0025-326X
- 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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Related Researcher
- Hyun, Jung Ho
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING)