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http://dx.doi.org/10.4491/KSEE.2011.33.8.564

Investigation on Physical Habitat Condition and Fish Fauna in Dal Stream of Han River Basin  

Hur, Jun-Wook (Bio-Monitoring Center)
Kang, Hyoeng-Sik (Environmental Strategy Research Group, Korea Environment Institute)
Jang, Min-Ho (Department of Biology Education, Kongju National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.33, no.8, 2011 , pp. 564-571 More about this Journal
Abstract
In order to establish fundamental data for stream restoration and environmental flow, we investigated fish fauna, community and physical habitat conditions in the Dal Stream of Han River Basin. Field monitoring including fish sampling was conducted from September 2008 to October 2009. A total number of fish caught in the 5 sites was 2,080 representing 9 families 35 species, and 19 species (54.3%) including Acheilognathus koreensis and Iksookimia koreensis were Korean endemic species during the study period. The most frequently found species in number was pale chub (Zacco platypus, 25.7%, n = 632) followed by Coreoleuciscus splendidus (18.0%, n = 375) and Z. koreanus (13.0%, n = 272). The lower reach of Dal Stream was more abundance of species, high diversity, evenness and richness, and lower dominance index than those of the upper reach. According to the dendrogram established at 0.63 level of similarity rate, sampling stations were divided into 2 groups. Most of upper streams in Korea consist of riffles and runs that are repeatedly followed by another one. However, stream channelization and leveling have caused reduction of habitat diversity. Therefore, it is necessary to make an effort on stream rehabilitation with evaluation of physical habitat condition by indicator species in order to maintain biodiversity and perform ecological restoration.
Keywords
Dal Stream; Fish Fauna; Community; Physical Habitat;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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