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Bacterial Abundances and Enzymatic Activities under Artificial Vegetation Island in Lake Paldang  

Byeon, Myeong-Seop (National Institute of Environmental Research)
Yoo, Jae-Jun (Department of Environmental Science, Kangwon national University)
Kim, Ok-Sun (Department of Environmental Science, Kangwon national University)
Choi, Seung-Ik (Environmental Research Institute, kangwon National University)
Ahn, Tae-Seok (Department of Environmental Science, Kangwon national University)
Publication Information
Korean Journal of Ecology and Environment / v.35, no.4, 2002 , pp. 266-272 More about this Journal
Abstract
For analyzing function of a microbial ecosystem which was created under the artificial vegetation island (AVI) installed at Lake Paldang, zooplankton and bacterial numbers and exoenzyme activities (${\beta}$-glucosidase and phosphatase) were measured biweekly from 3 November 2()()1 to 20 April 2002 at AVI site and control site. Under the AVI, the water quality was worse than control site in term of comparing the environmental parameters. But, zooplankton number of AVI site was 25 times higher than that of control site. Respiratory active bacterial numbers were 3-8 times higher at AVI site. In addition, enzymatic activities were higher at AVI site than those of control site. These results suggest that the zooplankton-phytoplankton-bacteria relationships are closely coupled with each other and organic materials are eliminated by respiration of zooplankton and bacterial activities.
Keywords
Lake Paldang; active bacteria; artificial vegetation island; enzyme activity; bacteria; water quality;
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