원주천의 어류군집을 이용한 생태적 건강성 평가 연구

서지정보

ㆍ발행기관 : 한국환경생물학회 ㆍ수록지정보 : 환경생물 / 35권 / 4호
ㆍ저자명 : 박현경, 최준길, 원경호, 이황구

목차

서 론
재료 및 방 법
1. 조사시기
2. 조사지점
3. 조사방법
4. 분석방법
결과 및 고 찰
1. 이화학적 수질 분석
2. 어류상
3. 군집특성
4. 내성도 및 섭식 길드 분석
5. 생태적 건강성 평가
6. 어류지수평가 (FAI)와 다양한 항목과의 상관성 분석
적 요
REFERENCES

영어 초록

The purpose of this study was to analyze fish communities in the Wonju stream located in Wonju-si in Gangwon-do, and to evaluate the health of the stream through past and present changes. We performed investigations four times from May 2015 to September 2016. In the survey, 5,201 individuals which belonged to 27 species and 9 families were collected. Zacco platypus was the dominant species and Pungtungia herziwas the subdominant species. Eight Korean endemic species (Acanthorhodeus gracilis, Zacco koreanus, Coreoleuciscus splendidus, Squalidus gracilis majimae, Microphysogobio yaluensis, Iksookimia koreensis, Koreocobitis rotundicaudata, Coreoperca herzi) were observed and showed a ratio of 16.54%. The fish community of dominance (0.72±0.10), diversity (1.37±0.32), evenness (0.61±0.13), and richness (1.70±0.23) were evaluated. According to our analysis of tolerance guilds, the total individual number of intermediate species was higher than the sensitive and tolerant species. As a result of the trophic guild analysis,the omnivore and insectivore species were relatively high. The value of the qualitative habitat evaluation index (QHEI) in the wonju stream was averaged 121.2 (±23.4), indicating a suboptimal condition. Stream health showed that the fish assessment index (FAI) value was an A to C grade in the Wonju stream. A correlation coefficient analysis with FAI and various factors was analysed statistically, and had a high correlation in QHEI, with the omnivore species, insectivore species, intermediate species, sensitive species, dominance, diversity, evenness, and richness.

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