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
- 학술저널
- 저자정보
- 발행연도
- 1995.11
- 수록면
- 307 - 316 (10page)
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초록· 키워드
오류제보하기
Jicon scallop (Chlamys farreri), as one of new culture species, has been taken a growing interest in Korea recently. Artificial seeds are needed since seeds in natural waters are absolutely short. To develop the better methods for the artificial spawning and the rearing larvae on a large scale, experiments were carried out from July 1993 to May 1994. Mother shells were collected from the area near Tong-yeong and Geoje-do, the southern part of the Korean Penninsula.
It was estimated that a period of 2-years was needed to be mother shells after the fertilization. Generally, spawning occourred intermittently from March to August and the maximum occurred in July. A best way for the artificial spawning was a chemical incentive, a 'serotonin injection' in parallel with the exposure and the temperature stimulation. Densities of the fertilized eggs for the normal development was from 30 to 40 per mililiter. It took 27-days from the fertilization to the settling larva averaging 155 ㎛ in size with water temperature 11.5~13.0℃. Isochrysis galvana and Chaetoceros calcitrans with a density of 1,500×10⁴ cells per mililiter were supplied for rearing the larvae. A proper density of larvae was 10 individuals per mililiter, and the survival rate of larvae from the flowing water system was much better than that of larvae from the still water.
It was estimated that a period of 2-years was needed to be mother shells after the fertilization. Generally, spawning occourred intermittently from March to August and the maximum occurred in July. A best way for the artificial spawning was a chemical incentive, a 'serotonin injection' in parallel with the exposure and the temperature stimulation. Densities of the fertilized eggs for the normal development was from 30 to 40 per mililiter. It took 27-days from the fertilization to the settling larva averaging 155 ㎛ in size with water temperature 11.5~13.0℃. Isochrysis galvana and Chaetoceros calcitrans with a density of 1,500×10⁴ cells per mililiter were supplied for rearing the larvae. A proper density of larvae was 10 individuals per mililiter, and the survival rate of larvae from the flowing water system was much better than that of larvae from the still water.
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