금강과 용담댐 하류하천 부착규조 군집 동태 및 생물학적 수질 평가
Dynamics of Epilithic Diatom Communities and Biological Water Quality Assessment in Geum River and Downstream Yongdam
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참고문헌
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초록
This study was conducted to investigate the water quality of the Geum River and downstream Yongdam using Diatom Assemblage Index to organic water pollution (DAIpo) and Trophic Diatom Index (TDI). Water quality parameters, such as Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Phosphorus (TP), were analyzed. A total of 99 diatom taxa belonging 27 genera and 75 diatom taxa belonging 25 genera were identified in the epilithic diatom communities of Geum River and downstream Yongdam, respectively. In Geum River, the dominant species were indifferent and saprophilous taxa, such as Achnanthes minutissima, Fragilaria crotonensis, Nitzschia inconspicua, Nitzschia palea, and Cyclotella atomus. However, the dominant species were in indifferent and saproxenous taxa, such as Achnanthes minutissima, Cocconeis placentula var. lineata, and Reimeria sinuata in downstream Yongdam. The mean biological indices (DAIpo and TDI) indicated poor water quality in Geum River but good water quality in downstream Yongdam.
Abstract
This study was conducted to investigate the water quality of the Geum River and downstream Yongdam using Diatom Assemblage Index to organic water pollution (DAIpo) and Trophic Diatom Index (TDI). Water quality parameters, such as Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Phosphorus (TP), were analyzed. A total of 99 diatom taxa belonging 27 genera and 75 diatom taxa belonging 25 genera were identified in the epilithic diatom communities of Geum River and downstream Yongdam, respectively. In Geum River, the dominant species were indifferent and saprophilous taxa, such as Achnanthes minutissima, Fragilaria crotonensis, Nitzschia inconspicua, Nitzschia palea, and Cyclotella atomus. However, the dominant species were in indifferent and saproxenous taxa, such as Achnanthes minutissima, Cocconeis placentula var. lineata, and Reimeria sinuata in downstream Yongdam. The mean biological indices (DAIpo and TDI) indicated poor water quality in Geum River but good water quality in downstream Yongdam.
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