Fish community was investigated in eutrophic Jeondae agricultural reservoir from April to November 2012. The food web structure of major fish species of Jeondae reservoir showed that due to serious organic pollution, thehyper-eutrophic condition with high chemical oxygen demand (COD), chlorophyll-a (Chl-a), total nitrogen (TN) and total phosphorus (TP), as estimated by stable isotope analysis. Total of 679 individuals were collected from the reservoir, and 9 species were identified. Interestingly, Lepomis macrochirus and Hemiculter eigenmanni known as less sensitive to pollution and water quality deterioration, dominated the reservoir, and their relative abundances were 38% and 27%, respectively. Further, the analysis of the stomach contents revealed that main food source of dominant L. macrochirus was high amount of zooplankton, which includes copepoda and cladocera, while Cyprinidae species mainly consumed organic particles with zooplankton preys. Stable isotope analysis also suggested that L. macrochirus, Carassiusauratus, Pseudorasboraparva, and H. eigenmanni are major zooplantivorous group in the Jeondae Reservoir.

서 론
 재료 및 방법
  1. 조사대상지 및 조사방법
  2. 이화학적 수질분석
  3. 영양단계 분석
  4. 안정동위원소 분석
 결과 및 고찰
  1. 이화학적 수질 특성
  2. 어류군집 특성
  3. 영양단계 특성
  4. 먹이망 특성
 적 요
 사 사
 REFERENCES

• 이의행(한국농어촌공사 농어촌연구원) | Eui-Haeng Lee
• 장광현(경희대학교 환경학 및 환경공학과) | Kwang-Hyeon Chang
• 서동일(경희대학교 환경학 및 환경공학과) | Dong-Il Seo
• 최종윤(부산대학교 생명과학과) | Jong-Yun Choi
• 주기재(부산대학교 생명과학과) | Gea-Jae Joo
• 김미리내(한국농어촌공사 농어촌연구원) | Mirinae Kim
• 신재훈(한국농어촌공사 농어촌연구원) | Jae Hoon Shin
• 손미선(국립환경과학원 영산강물환경연구소) | Misun Son
• 남귀숙(한국농어촌공사 농어촌연구원) | Gui Sook Nam Corresponding author