Oxygen Penetration through Invertebrate Burrow Walls in Korean Tidal Flat SCIE SCOPUS KCI

Cited 6 time in WEB OF SCIENCE Cited 6 time in Scopus
Title
Oxygen Penetration through Invertebrate Burrow Walls in Korean Tidal Flat
Author(s)
Koo, Bon Joo; Koh, Chul-Hwan
KIOST Author(s)
Koo, Bon Joo(구본주)
Publication Year
2013-12
Abstract
Macrofaunal burrows increase the surface area of the sediment-water interface, which has a great impact on the metabolism of aerobic microbes and the oscillation of reduced metabolites within the sediment. Given the importance of macrofauna in surficial sediments, the aim of this study is to examine the effects of burrow architectures on dissolved oxygen diffusion rates in comparison with unburrowed sediment, and thereby to evaluate the theoretical assumption used for modeling solute distribution in the burrow system using field samples. Employing microsensors, horizontal oxygen profiles were measured on a micrometer scale around burrows of seven invertebrates in tidal flats of the west coast of Korea. Oxygen diffusion distance through the burrow walls of seven invertebrates showed spatio-temporal variation with a range of 0.6 to 2.9 mm. Two groups of burrows were identified based on their oxygen diffusive properties relative to unburrowed sediments: 1) oxygen penetration similar to that of ambient sediments and 2) clearly enhanced oxygen penetration. Differences in the diffusive properties of the burrow wall were related to the burrow depth and diameter, existence of mucus lining on the wall, sediment grain size, and tidal phases. Also inhabitant activity was an important factor affecting oxygen penetration, which is discussed in the paper. These results further demonstrate that simplified assumptions (i. e. burrow structures are viewed as direct biogeochemical extensions of the sediment-water interface) may not be exact representation of the nature.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3053
DOI
10.1007/s12601-013-0031-0
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.48, no.4, pp.329 - 338, 2013
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
MACROFAUNAL BURROWS; NEREIS-DIVERSICOLOR; MARINE-SEDIMENTS; ORGANIC-MATTER; DIAGENESIS; INTERFACE; OXIDATION
Keywords
oxygen diffusion; burrow; sediment-water interface; macrofauna; tidal flat
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

benthic ecology,bioturbation,remote sensing,저서생태학,생물교란,원격탐사

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