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http://dx.doi.org/10.13047/KJEE.2016.30.4.745

The First Record on the Rhynchocypris kumgangensis from Taehwa River, Korea  

Byeon, Hwa-Keun (Dept. of Biology Education, Seowon Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.30, no.4, 2016 , pp. 745-750 More about this Journal
Abstract
Morphological characteristics and population characteristics of the Rhynchocypris kumgangensis were investigated at Taehwa River from April 2014 to April 2015. This is the first record on R. kumgangensis not only from Guksu stream (the upstream region of Taehwa River, Ulsan-si Ulchu-gun Beomseo-eup Kuksu-ri) but also from the stream flowing into the Gangneungnamdae stream, in the southern part of East Sea, Korea. The morphometric characteristics of R. kumgangensis in the Taehwa River and the Han River are very similar except that the population at Taehwa River showed shorter caudal peduncle length than caudal peduncle depth when compared with the population at Han River. In terms of meristic character the population at Taehwa River showed fewer numbers of scales at the lateral line, above the lateral line and below the lateral line. Other than that, the two populations showed the same meristic characters. The fish cohabiting with R. kumgangensis mainly composed of Zacco platypus (25.2%), Rhynchocypris oxycephalus (24.1%) and Zacco koreanus (21.8%). Length frequency distribution analysis indicated that the length of the group ranged between 45~65 mm and the average length was 54.3 mm. Calculation of the length-weight relation of R. kumgangensis showed the value of constant a as 0.000002 and b as 3.34, and the Condition factor (K) was 1.10 an on average.
Keywords
CAUDAL PEDUNCLE LENGTH; CAUDAL PEDUNCLE DEPTH; FREQUENCY DISTRIBUTION OF TOTAL LENGTH; COHABITION FISH; CONDITION FACTOR;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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