지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 김창훈
- 발행연도
- 2017
- 저작권
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Rockworm, Marphysa sanguinea is the most known polychaeta species with a high economic value. However, this species has a high mortality rate from the larval stage to the juvenile stage. The purpose of this study was to evaluate optimum rearing environments that affect survival and growth rates of rockworm larvae.
Two different experiments were conducted to test the performance of substrate composition and water exchange rate for rockworm larvae culture. In the first experiment, substrates used for the experiment were decomposed granite soil (1~2 mm in diameter) 100%, sand (0.02~0.2 mm in diameter) 100%, oyster shell (5~10 mm in diameter) 100%, mixture of the sand and the oyster shell 50:50 ratio and mixed substrate(mixture of the gravel, the decomposed granite soil, the sand and the oyster shell 1:1:1:1 ratio). In the second experiment, larvae were maintained in five different water exchange rates no water exchange, one cycle/day, two cycles/day, three cycles/day and continuous exchange (one cycle means that whole water in a tank is replaced by new water one time a day). Each trial was conducted in triplicate for two months.
Results showed that, appropriate substrates for rockworm larvae culture appears to be the sand/oyster shell mixed substrate (50:50 mixture) and the all substrate mixture. In addition, three cycles/day was economically the most efficient, although the continuous exchange showed the highest survival rate.
Two different experiments were conducted to test the performance of substrate composition and water exchange rate for rockworm larvae culture. In the first experiment, substrates used for the experiment were decomposed granite soil (1~2 mm in diameter) 100%, sand (0.02~0.2 mm in diameter) 100%, oyster shell (5~10 mm in diameter) 100%, mixture of the sand and the oyster shell 50:50 ratio and mixed substrate(mixture of the gravel, the decomposed granite soil, the sand and the oyster shell 1:1:1:1 ratio). In the second experiment, larvae were maintained in five different water exchange rates no water exchange, one cycle/day, two cycles/day, three cycles/day and continuous exchange (one cycle means that whole water in a tank is replaced by new water one time a day). Each trial was conducted in triplicate for two months.
Results showed that, appropriate substrates for rockworm larvae culture appears to be the sand/oyster shell mixed substrate (50:50 mixture) and the all substrate mixture. In addition, three cycles/day was economically the most efficient, although the continuous exchange showed the highest survival rate.
목차
1. 서론 12. 재료 및 방법 42.1 사육기질 구성에 따른 유생의 생존 및 성장 42.1.1 실험에 사용된 바위털갯지렁이 유생 채집 42.1.2 사육수조 제작 52.1.3 기질조성 및 사육조건 72.2 사육수 환수율에 따른 유생의 생존 및 성장 112.2.1 실험에 사용된 바위털갯지렁이 유생 채집 112.2.2 사육수조 제작 112.2.3 기질조성 및 사육조건 122.2.4 수질측정 132.3 통계처리 153. 결과 163.1 사육기질 구성에 따른 유생의 생존 및 성장 163.1.1 사육기질 구성에 따른 유생의 생존 163.1.2 사육기질 구성에 따른 유생의 성장 163.2 사육수 환수율에 따른 유생의 생존 및 성장 243.2.1 사육수 환수율에 따른 유생의 생존 243.2.2 사육수 환수율에 따른 유생의 성장 243.2.3 사육수 환수율에 따른 수질환경의 변화 314. 고찰 414.1 사육기질 구성에 따른 유생의 생존 및 성장 414.2 사육수 환수율에 따른 유생의 생존 및 성장 445. 요약 47참고문헌 49감사의 글 57
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