남해연안 전복양식장 퇴적물의 황산염 환원과 철 환원에 의한 유기물 분해 특성
- Title
- 남해연안 전복양식장 퇴적물의 황산염 환원과 철 환원에 의한 유기물 분해 특성
- Other Titles
- Rates of sulfate reduction and iron reduction in the sediment associated with abalone aquaculture in the southern coastal waters of Korea
- Author
- 현정호
- Keywords
- Abalone; Aquaculture; Benthic nutrient flux; Biodeposit; Iron reduction; Sulfate reduction
- Issue Date
- 2011-12
- Publisher
- 한국해양과학기술원
- Citation
- Ocean and Polar Research, v. 33, NO. 4, Page. 435-445
- Abstract
- ;We investigated geochemical properties, and microbial sulfate- and iron(III) reduction in sediment influenced by the aquaculture of abalone in the Nohwa-do, southern coastal sea in Korea. Concentrations of ammonium, phosphate, and sulfide in the pore-water were higher at farm sites than at control sites. The differences between the 2 types of sites were most apparent in terms of the weights of abalone and the temperature increase during September. Accordingly, the rates of sulfate reduction at the farm sites during September (61 mmol S m-2d-1) were 3-fold higher than the sulfate reduction during May (20 mmol S m-2d-1). In contrast, Fe(III) reduction rates were highest at the control sites in May, but its significance was relatively decreased at farm sites during September when sulfate reduction rates were highest. During September, benthic ammonium flux was 3-fold greater at the farm sites (35 mmol N m-2d-1) than at the control sites (12 mmol N m-2d-1), and phosphate flux was 8-fold higher at the farm sites (0.018 mmol P m-2d-1) than at control sites (0.003 mmol P m-2d-1). Overall results indicated that the inappropriate operation of a large-scale aquaculture farm may result in excess input of biodeposits and high nutrient fluxes from the sediment, thereby decreasing diversity of the benthic ecosystem and deepening eutrophication in coastal waters.
- URI
- http://koreascience.or.kr/article/JAKO201105462028495.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/184365
- ISSN
- 1598-141X;2234-7313
- DOI
- 10.4217/OPR.2011.33.4.435
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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