논문 국내 국내전문학술지(KCI급) 포식압력 하에 치어 보호 구조물이 피식자의 생존율에 미치는 영향에 관한 실험적 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2013-10
- 저자명 안창혁,주진철,이새로미,안호상,박재로,송호면
- 학술지명 한국물환경학회지
- 발행처명 한국물환경학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 6
- 연구분야 공학 > 환경공학
- 원문 링크 https://papersearch.net/thesis/article.asp?KEY=3192191
홈페이지논문 초록 (Abstract)
The aim of this study was to evaluate artificial fish shelter, which was known to increase prey survival and expand habitat space to improve species diversity and fish communities in a freshwater ecosystem. The experiment was performed at an outdoor test-bed for three months from 2011 by comparing the responses to adjustments in the volume of the artificial patch (juvenile fish shelter, JFS) in the control and experimental groups. Analysis of the environmental conditions over two periods (Period1 ~ 2) showed minor differences in the physichemical characteristics of water quality, phytoplankton, and zooplankton biomass, thus, allowing comparative analysis of feeding ecology. However, high water temperature conditions in Period1 (25.6 ± 2.0°C), affected the predation activity of the piscivorous fishes, Coreoperca herzi (C. herzi, size 89 ± 4 mm). Survival rates of the prey fishes, Rhynchocypris oxycephalus (R. oxycephalus, size 29±1 mm), improved as the patch volume increased and were higher than those of the control group by 35.9 ~ 46.7%. Analysis showed that JFS reduced the chances of predator-prey encounter, and thereby minimized prey vulnerability.