Insights into Macroinvertebrate burrowing Activity and Methane Flux in Tidal Flats
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Title
- Insights into Macroinvertebrate burrowing Activity and Methane Flux in Tidal Flats
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Author(s)
- Kang, Jeongwon; Koo, Bon Joo; Jeong, Kap-Sik; Woo, Han Jun; Seo, Jaehwan; Seo, Hyun-Seok; Kim, Min-Seob; Kwon, Kaekyoung
- KIOST Author(s)
- Kang, Jeong Won(강정원); Koo, Bon Joo(구본주); Woo, Han Jun(우한준); Seo, Jae Hwan(서재환); Kwon, Kae Kyoung(권개경)
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Alternative Author(s)
- 강정원; 구본주; 정갑식; 우한준; 서재환; 권개경
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Publication Year
- 2018-05
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Abstract
- The CH4 flux was examined preliminarily in tidal flats using a circular closed-chamber method to understand the effects of macroinvertebrate burrowing activity. The chamber was deployed over decapods (mud shrimp, Laomedia astacina and crab, Macrophthalmus japonicus) burrows for similar to 2 h, and the CH4 and CO2 concentrations were continuously monitored using a closed, diffuse CH4/CO2 flux meter. It founds that Laomedia astacina burrow (which is relatively long) site afforded higher-level CH4 production, likely due to diffusive emission of CH4 in deep-layer sediments. In addition, the proposed CH4-oxidation process (i.e., reverse methanogenesis) was supported by the decrease in the delta C-13 of headspace CO2 during the chamber experiment. Therefore, macroinvertebrate burrows appear to be an important ecosystem environment for controlling atmospheric CH4 over tidal flats.
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ISSN
- 0749-0208
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/956
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DOI
- 10.2112/SI85-137.1
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Bibliographic Citation
- JOURNAL OF COASTAL RESEARCH, pp.681 - 685, 2018
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Publisher
- COASTAL EDUCATION & RESEARCH FOUNDATION
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Subject
- CO2; OXIDATION; SEDIMENT; CARBON; COVERS; CHINA; FIELD; CH4
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Keywords
- Methane flux; AOM; Bioturbation; Tidal flat; Circular chamber technique
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Type
- Article
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Language
- English
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Document Type
- Article; Proceedings Paper
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