In order to understand the stress responses, we measured the concentration of stress hormones by using the fresh feces of wild otters in the Gwangju stream and Seomjin river during summer and winter in 2018. We compared seasonal and regional number of spraints (=otters’ feces), temperature, altitude, water width, land cover, and water quality with stress hormones. The stress hormone levels were higher in summer than in winter, and significantly different to season and region. In addition, the number of feces were different according to the season and region, and showed a negative correlation with stress hormone. This study suggested assessing stress hormones as another promising method for the analysis of status of wild otters and it will contribute to establish the management and conservation policy, especially in urban area.

Abstract
서 론
재료 및 방 법
    1. 연구 지역 및 서식지 분석 방법
    2. 분변 수거 및 보관
    3. 스테로이드 호르몬 추출 및 EIA (Enzyme immunoassay)
    4. 통계분석방법
결 과
    1. 스트레스 호르몬 비교
    2. GJS 내 분변 개수 비교 및 스트레스 호르몬과의 상관성
    3. 스트레스 호르몬에 영향을 미치는 서식지 요인
고 찰
REFERENCES

• 이건주(전남대학교 생물과학·생명기술학과) | Gun Joo Lee (Department of Biological Sciences and Biotechnology, Chonnam National University)
• 조현진(전남대학교 생물학과) | Hyun Jin Cho (Department of Biological Sciences, Chonnam National Univerity)
• 나정은(전남대학교 생물학과) | Jeong Eun Na (Department of Biological Sciences, Chonnam National Univerity)
• 장재민(전남대학교 생물학과) | Jae Min Jang (Department of Biological Sciences, Chonnam National Univerity)
• 장진우(전남대학교 생물학과) | Jin Woo Jang (Department of Biological Sciences, Chonnam National Univerity)
• 이학영(전남대학교 생물학과) | Hak Young Lee (Department of Biological Sciences, Chonnam National Univerity) Corresponding author