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http://dx.doi.org/10.11614/KSL.2016.49.2.130

A Survey of Ecosystem Structure in the Watershed of the Seom River and Hoengseong Reservoir, Kangwon Province, Korea  

Shin, Jae-Ki (Center for Integrate Water Management of the Nakdong River, Korea Water Resources Corporation (K-water))
Kim, Youngsung (K-water Research Institute, Korea Water Resources Corporation (K-water))
Hwang, Soon-Jin (Department of Environmental Health Science, Konkuk University)
Publication Information
Korean Journal of Ecology and Environment / v.49, no.2, 2016 , pp. 130-141 More about this Journal
Abstract
This study was conducted to elucidate the structure of river ecosystem in the watershed of the Seom River and Hoengseong Reservoir located in Hoengseong of Kangwon Province from February to October 2007. Topics of the survey were mainly rainfall, discharge, water quality in abiotic factors and attached algae, benthic macroinvertebrates, fish, birds and mammals of flora and fauna in a biotic factors, respectively. Specifically, the Seom River could be seen as a typical flow rate of the stream is controlled to the effect of the dam. Basic water qualities were great to seasonal effects, it was relatively clean. Diatom Achnanthes, Cymbella, Gomphonema, and Navicula were distributed predominantly in the periphytic algae. Benthic macroinvertebrates were mostly aquatic insects and freshwater shellfish, the aquatic insects were abundant Ephemeroptera and Trichoptera. Freshwater fish was the dominant Zacco platypus, fish species varied toward the downstream. Birds were mainly observed in four species, and species Egretta garzetta, which was distributed in a wide area of the Seom River. In mammals, Lutra lutra of Mustelidae was identified that the number of inhabit widely. In aspects of the ecological trophic level, the Seom River was maintained at a relatively stable state in the producer and the consumer relationship. The results of this study will expected to be utilized as a useful data for understanding the structure and function of the lotic and lentic ecosystems.
Keywords
Seom River; Hoengseong Rerservoir; ecosystem; biota; algae; invertebrate; fish; bird; mammals;
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