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ISSN : 1225-4517(Print)
ISSN : 2287-3503(Online)
Journal of Environmental Science International Vol.27 No.11 pp.1105-1115
DOI : https://doi.org/10.5322/JESI.2018.27.11.1105

Characteristics of Aquatic Ecosystem Environment in Seosan Reservoir, Korea

Dohun Lim, Yoonjin Lee1)*
Konkuk University, Department of Civil and Environmental Engineering, Seoul 05029, Korea
1)Konyang University, College of General Education, Daejeon 35365, Korea
*Corresponding author: Yoonjin Lee, Department of General Education, Konyang University, Daejeon 35365, Korea Phone : +82-42-600-8660

Abstract

The aim of this study was to collect crucial data for the improvement of water quality and ecosystem conservation by analyzing water samples, sediments, benthic macroinvertebrates, and fish in the Seosan reservoir. The average values of water quality parameters from 2001 to 2016 were a chemical oxygen demand of 10 mg/L, total nitrogen of 1.22 mg/L, and total phosphorus of 0.074 mg/L. Cadmium was detected in the range of 0.531–0.748 mg/kg in the reservoir sediment. Fish belonging to 6 families and 9 species were identified in the reservoir. The dominant species were Carassius auratus and Micropterus salmoides. Benthic macroinvertebrates belonging to 22 families and 28 species were identified. The ecological score of the benthic macroinvertebrate community was 15 inside the reservoir (St. 2). Micropterus salmoides, an invasive alien species, was determined to be the subdominant fish species based on the number of captures, and the presence of the invasive species, Sicyos angulatus L. and Paspalum distichum L. was confirmed among the land flora.

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