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한국수자원학회논문집 특집호 Vol.52 No.S-2전체 목록 바로가기Vol 목록 바로가기
생태교란어종 큰입배스의 서식 특성에 관한 실험적 연구 / An experimental study on the habitat characteristics of largemouth bass  PDF
저자명
손민우;변지선
발행사
한국수자원학회
수록사항
한국수자원학회논문집 특집호, Vol.52 No.S-2(2019-10)
페이지
시작페이지(845)
ISSN
1226-6280
요약

The aim of this study is to investigate the factors affecting the habitat characteristics of largemouth bass (Micropterus salmoides), which is one of exotic fishes in Korea. Based on field observation, the laboratory experiments were performed in order to investigate the relationship between water temperature and the habitat characteristics of largemouth bass. It was found that largemouth bass preferred a relatively high water temperature in winter and a low temperature in summer. When the small largemouth bass coexisted with large largemouth bass, the separation of habitats depending on the size of each largemouth bass are observed. In the separated habitat areas, it is also observed that the largemouth bass preferred vicinity of the obstacle such as boulder. From the experiments for preference between water temperature and obstacle, it was observed that a primary consideration in habitat selection was obstacles. It was also observed that when light device was turned on, largemouth bass formed a new habitat.