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