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Estimation of Oxygen Consumption Rates by Using an Oxygen Microelectrode in Ganghwa Intertidal Flat
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  • Journal title : Ocean and Polar Research
  • Volume 28, Issue 2,  2006, pp.119-127
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2006.28.2.119
 Title & Authors
Estimation of Oxygen Consumption Rates by Using an Oxygen Microelectrode in Ganghwa Intertidal Flat
Kim, Dong-Seon;
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 Abstract
We measured oxygen microprofiles using an oxygen microelectrode in Ganghwa intertidal flat in April and September. Oxygen consumption rate was calculated by using three different methods based on the oxygen microprofiles. The method using the PROFILE software was thought to be the most reliable among the three methods. The oxygen consumption rates calculated at station D1 by using the PROFILE software were 10.5 and 6.27mmol in April and September, respectively. At station D2, they were 10.9mmol in April and 5.39 mmol in September. There was little spatial variation, but large seasonal variation, with almost two times larger values in April than in September. The higher rate in April is ascribed to higher oxygen concentration in the seawater and higher organic carbon content in the surface sediments, which probably accelerate oxygen consumption for organic matter decomposition in the sediments. Aerobic remineralization rates estimated from the oxygen consumption rates ranged from 4.14 to 8.07 mmol C in Ganghwa intertidal flat, which were much lower than the anaerobic remineralization rate.
 Keywords
oxygen;microelectrode;intertidal flat;Ganghwa Island;
 Language
Korean
 Cited by
1.
낙동강 하구 갯벌 사질 퇴적물에서 생지화학적 유기탄소순환,이재성;박미옥;안순모;김성길;김성수;정래홍;박종수;진현국;

한국해양학회지:바다, 2007. vol.12. 4, pp.349-358
1.
Rapid organic matter mineralization coupled to iron cycling in intertidal mud flats of the Han River estuary, Yellow Sea, Biogeochemistry, 2009, 92, 3, 231  crossref(new windwow)
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