서해 주문도 연안 사질 조하대에서의 해사채취가 중형저서동물 군집에 미치는 영향 연구
Effect of Sand Extraction on Meiobenthic Community of Jangbong-do in the Eastern Yellow Sea of Korea
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참고문헌
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초록
The objective of the study survey was to determine the effect of marine sand extractionon community composition and rate of recolonization of the meiobenthos following cessation ofmining activities. Because of meiobenthic distribution in nature, high abundance, intimate associationwith sediments, fast reproduction, benthic larva period, sensitivity to pollution and rapidlife histories, meiobenthos are widely regarded as ideal organisms to study the potential ecologicalindicator of natural and anthropogenic stresses. The community structure of meiobenthos wasstudied at seven stations within sandy tidal and sub tidal zones in Jangbongdo in the Yellow Sea,Korea from Aug. 2006 to Dec. 2007. Meiobenthic samples were collected by three core samples,with a 3.6 cm in diameter, from each sediment sample taken with a Smith-McIntyre Grab. It wasfound that sand mining often causes complete removal of the sediment and the damage to thehabitats of meiobenthos. This study in the effect showed that sand mining resulted in a reductionin total abundance and biomass of meiobenthos in mining area. The finding of this study furthershowed that initial restoration of abundance and biomass within one year of the cessation of sandmining.
Abstract
The objective of the study survey was to determine the effect of marine sand extractionon community composition and rate of recolonization of the meiobenthos following cessation ofmining activities. Because of meiobenthic distribution in nature, high abundance, intimate associationwith sediments, fast reproduction, benthic larva period, sensitivity to pollution and rapidlife histories, meiobenthos are widely regarded as ideal organisms to study the potential ecologicalindicator of natural and anthropogenic stresses. The community structure of meiobenthos wasstudied at seven stations within sandy tidal and sub tidal zones in Jangbongdo in the Yellow Sea,Korea from Aug. 2006 to Dec. 2007. Meiobenthic samples were collected by three core samples,with a 3.6 cm in diameter, from each sediment sample taken with a Smith-McIntyre Grab. It wasfound that sand mining often causes complete removal of the sediment and the damage to thehabitats of meiobenthos. This study in the effect showed that sand mining resulted in a reductionin total abundance and biomass of meiobenthos in mining area. The finding of this study furthershowed that initial restoration of abundance and biomass within one year of the cessation of sandmining.
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