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KMID : 0311219810120010001
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Yonsei Reports on Tropical Medicine
1981 Volume.12 No. 1 p.1 ~ p.10
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Strudy on Ciliated Protozoa as "Biologicla Indicator" in Polluted Water
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Soh, Chin-Thack/蘇鎭琸
Ahn Yung-Kyum/Bae, Kyoung-Hoon/安泳謙/裵敬焄
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Abstract
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The water from the river bed of Mapo region of Hangang River, which was recognized as one of the highly polluted zone throughout the river, was examined to find organism which may contribute as indicator of the pollution.
1. Among the protozoa, Ciliates were the most common. In total, 23 species were identified, and 10 species were constantly found throughout year; Cbilopl rya sp., Ch. utahensis, Enchelyodon elegans, Loxophyllum sp., Dileptus anser, colpoda sp., Paramecium aureria, Stylongchia pustulata, Euplotes sp. and Vorticella campanula.
2. Among the 10 species above, Chilophrya sp. and Colpoda sp. were most predominant.
3. In still condition of the water, only the two species and Vorticella sp. kept vitality as long as 6 days or more.
4. In cold temperature water, Chilophrya sp. was destroyed at 4°C within one day, but Colpoda sp. still survived and multiplied slowly. In general temperature adaptibility of Colpoda sp. showed more wider range than of Chilophrya sp.
5. Hg showed higher toxicity than other heavy metals in destruction of Colpoda sp. The protozoa was killed within seconds. From above findings, it is suggested that Colpoda sp. may contribute as indicator organism specially in eusaprobial polluted water.
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