KOREASCHOLAR

만경강 본류의 어류 트로픽 길드, 오염 내성도 및 다변수 생태건강도에 대한 화학적 수질영향 The influence of chemical water quality on fish trophic guilds, pollution tolerance, and multi-metric ecological health in the main streams of Mangyeong River

나현희, 이상재, 안광국
  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/367956
Korean Journal of Environmental Biology (환경생물)
Vol. 37 No. 1 (2019.03)
pp.8-18
한국환경생물학회 (Korean Society Of Environmental Biology)
초록

The objectives of this study were to analyze the influence of chemical water quality on fish guilds, pollution tolerance and the multi-metric ecological health, based on the Fish Assessment Index (FAI) in the main stream of Mangyeong River between 2009−2016. The quality of water with specific conductivity, TP, and NH4-N got worse dramatically in the down region. During the study, a total of 50 species were collected and the most dominant species was Zacco platypus. Also known as tolerant species, accounted 22.9% of the total abundances, thus indicating a trophic degradation. The downstream region (S5) had the highest number of fish external abnormalities, indicating a degradation of ecological health, based on the fish assemblages. Pearson correlation analysis indicated that relative abundance of tolerant fish species and omnivore fish species had a significant positive correlation (r>0.30, p<0.05) with values of BOD, conductivity and NH4-N. Whereas, the relative abundance of the sensitive species and insectivore species had a significant negative relations (r<−0.30, p<0.001) with the parameters. The mean obtained from the multi-metric fish model, based on the FAI of all sites was 47 (n=40). This indicated a “fair condition” in the ecological health, and the downstream regions (S3−S5) were judged as “bad condition”, indicating an influence of the chemical degradation on the ecological health.

키워드
chemical water qualityfish guildpollution toleranceecological health
목차
Abstract
 서 론
 재료 및 방법
  1. 조사시기 및 조사지점 현황
  2. 화학적 수질 자료 분석
  3. 어류 현장조사 방법
  4. 어류 생태지표 특성 분석법
  5. 어류의 다변수 모델을 이용한 생태건강도 평가
 결과 및 고찰
  1. 화학적 수질특성
  2. 어류의 종 조성 및 분포특성
  3. 어류의 오염 내성도 및 트로픽 길드 분석
  4. 화학적 수질에 따른 어류분포 특성 분석
  5. 어류 다변수 모델을 이용한 생태건강도 평가
 적 요
 사 사
 REFERENCES
저자
  • 나현희(충남대학교 생명시스템과학대학 생물과학과) | Hyun-Hee Na (Department of Biological Science, College of Biological Science and Biotechnology, Chungnam National University)
  • 이상재(새만금지방환경청) | Sang-Jae Lee (Chemical Safety Division, Saemangeum Regional Environmental Office)
  • 안광국(충남대학교 생명시스템과학대학 생물과학과) | Kwang-Guk An (Department of Biological Science, College of Biological Science and Biotechnology, Chungnam National University) Corresponding author