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Ichthyofauna and Ecological Community Analysis in the Dong River  

Choi, Jun-Kil (Dept. of Biological Science, Sangji Univ.)
Mitamura, Osamu (Limnological Laboratory, University of Shiga Prefecture)
Lee, Dong-Jun (Dept. of Biological Science, Sangji Univ.)
Shin, Hyun-Seon (Limnological Laboratory, University of Shiga Prefecture)
Publication Information
Korean Journal of Environment and Ecology / v.22, no.6, 2008 , pp. 616-624 More about this Journal
Abstract
The ichthyofauna and ecological community analysis in the Dong River, Korea, were investigated from May, 2006 to May, 2007. During the surveyed period, 31 species belonging 9 families were collected. Total of 31 species(primary freshwater: 26 species, peripheral freshwater: 5 species) were found with the primary freshwater fishes being highest. Dominant species was Zacco koreanus(55.73%), and subdominant species was Coreoleuciscus splendidus(7.15%). Also, Microphysogobio longidorsalis (6.12%), Hemibarbus mylodon(4.87%), Iksookimia koreensis(4.49%) were numerous. There were 19 Korean endemic species(61.29%), including Acheilognathus signifer, A. yamatsutae, Pseudopungtungia tenuicorpus, C. splendidus, Squalidus gracilis majimae, H. mylodon. Among them, 1 species was identified as qualifying for possible designation as a natural monument catergory, and 5 species were identified for designation required to protect under a wildlife category. As result of expected number of species according to rarefaction curve, the expected species of the Dong-river ranged from 19(51. 4, 5) to 22(51. 3) and result of similarity analysis ranged from 62.28%(51. 1 and 2) to 84.13%(51. 1 and 5). In conclusions, we could define that the Dong-river has a very good water conditions as habitat of fish, and habitat conditions also are very similar in every survey sites.
Keywords
PRIMARY FRESHWATER FISH; PERIPHERAL FRESHWATER FISH; SIMILARITY ANALYSIS;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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