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Water Quality Assessment Using the Periphyton on the Artificial Substrates in Dae Stream, Busan  

최철만 (경성대학교 기초과학연구소)
박연규 (밀양대학교 환경공학과)
문성기 (경성대학교 생물학과)
Publication Information
Korean Journal of Environmental Biology / v.22, no.1, 2004 , pp. 242-245 More about this Journal
Abstract
This study was conducted to assess water quality of Dae stream in Busan using the periphyton. Species of the higher rank 10% in standing crops were Cymbella ventricosa, Aulacoseira granulata, Gomphonema olivaceum, Synedra ulna through the study. In addition, Fragilaria intermedia ill the station 1 and 2, and Nitzschia palea in the station 3 and 4 dominated the periphyton community respectively. These species mainly appeared in the urban stream. Where input of pollutant is forecasted, standing crops of dominant species are investigated very highly. Also, standing crops of Nitzschia palea were higher in the pollution area such as polysaprobic than any other area. Water quality by the saprobic index were oligosaprobic in the station 1, $\beta$-mesosaprobic in the station 2 and 3, and $\alpha$- mesosaprobic in the station 4. These results suggests that the pollution of Dae stream gradually increased with downstream due perhaps to the loading of sewage from the new residental complex.
Keywords
periphyton; water quality assessment; artificial substrate; saprobic index; indicator; dominant species;
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