Water Quality Characteristics and Fish Community of the Gucheon Reservoir and Yeoncho Reservoir in Geoge Island
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서지정보
ㆍ발행기관 : 한국환경생태학회
ㆍ수록지정보 : 한국환경생태학회지 / 29권 / 1호
ㆍ저자명 : Han, Jeong-Ho, Paek, Woon-Kee, An, Kwang-Guk
ㆍ저자명 : Han, Jeong-Ho, Paek, Woon-Kee, An, Kwang-Guk
목차
INTRODUCTIONMATERIALS AND METHODS
1. Description of Sampling Sites
2. The Study Period and site Descriptions
3. Sampling Gears and Methods
4. The Analysis of Fish Community and EcologicalIndicator Characteristic
5. The Analysis of Physicochemical Water-Quality
RESULTS AND DISCUSSION
1. The Comparison of Physicochemical Water QualityCharacteristics
2. The Comparison of the Fish Fauna and FishCommunity between the Gucheon Reservoir andthe Yeoncho Reservoir
3. The Analysis of Fish Tolerance Guilds andTrophic Guilds
4. The Analysis of Length-Weight Relationship ofFish Individuals
5. The Analysis of Condition Factor (K) of FishPopulation
6. Discussion
REFERENCES
영어 초록
Water chemistry and fish community, based on fish compositions and ecological characteristics(trophic/tolerance guilds and condition factor), were compared in Gucheon Reservoir(GcR) and Yeoncho Reservoir(YcR). Chemical parameters of water quality such as BOD, COD, nutrient(N, P) and suspended solids indicated that water quality was better in the YcR than GcR, and the temporal variability in seasonal and interannual patterns were greater in the YcR. The greater variability was mainly attributed to intense dilutions of reservoir water by Asian monsoon rain during July–August. Fish guild analysis indicated that species diversity was higher in the GcR than the YcR, and that the proportion of tolerant and omnivore species were greater in the YcR. Regression analysis of body weight-total length showed that the regression coefficient(b value) was lower in the GcR(2.15 ~ 2.40) than the YcR(2.59 ~ 3.14). Condition factor(K) of fish against the total length showed negative slope of Zacco temminckii, Carassius auratus, Pseudorasbora parva and Rhinogobius brunneus population in the GcR, and a positive slope of Carassius auratus and Rhinogobius brunneus population in YcR. Overall, our data suggest that the growth of the fish populations, based on the length-weight relations and condition factor, reflected the trophic regime of nutrients and organic matter.참고 자료
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