Changes of fish community in the Mankyeong and the Dongjin River after construction of Saemangeum Dike

• DOI: 10.7229/jkn.2011.4.2.111
• Publication Date: 2012-11-08T00:27:50Z
• Authors: Jeong-Hui Kim; Ju-Duk Yoon; Dong-Su In; Min-Ho Jang
• Keywords: Dike; Fresh water fish

To monitor changes of fish assemblage, we selected 5 study sites in lower-middle part the Mankyeong (3 sites) and Dongjin (2 River, conducted field sampling 2 to 4 times per year from 2007 2009. Total sampled fishes were 66 species 16 families. Cyprinidae (RA, 73.25%; 33 species) was dominant family. Dominant Zacco platypus 19.96%), subdominant Chelon haematocheilus 11.11%). There 18 Korean endemic 12.56%) one endangered species, Liobagrus obesus, only found River. Three exotic found: Carassius cuvieri, Micropterus salmoides Lepomis macrochirus. Fish assemblages showed similar occurrence patterns around periods. As a result number comparison between before after dike construction at MR1 MR2, there no huge difference. When classified into two types, primary freshwater peripheral using habitat characteristics, increased 14 21 construction. Moreover, relative rate 53% compared with (18%). On other hand, decreased 29 19 cluster analysis Jaccard method, community distinguished each other.