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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1998.5
- 수록면
- 141 - 149 (9page)
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초록· 키워드
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Spawning inducement of striped knife-jaw, Oplegnathus fasciathus, was attempted by two experiments. In experiment Ⅰ (Exp. Ⅰ), water temperature was gradually increased from 14.5℃ in December 15, 1996 to 21.0℃ in February 22, 1997 and then maintained at this level. Photo-period was also gradually incresed from 10.5L/13.5D in December 15, 1996 to 15.5L/8.5D in February 17, 1997, and then maintained at this level. In experiment Ⅱ (Exp. Ⅱ), water temperature was increased in the same way from Exp. Ⅰ. Photoperiod was natural conditions from December 1996 to March 9, 1997, and then suddenly increased to 15.5L/8.5D until the end of experimental period.
Spawning of the fish was occurred from February 22 through April 2, 1997 (for 40 days) in Exp. Ⅰ. Number of total spawned eggs was 30.04 million and fertilization rate was 77.2%. The fish began to spawn at 21.0℃ and 15.5L/8.5D. It required 65 days to spawn since the water temperature had increased from 14.5℃ to 21.0℃.
Spawning of the fish was not occurred until March 9, 1997 in Exp. Ⅱ. After 7 days, photo-period was suddenly incresed to 15.5L/8.5D and fish were spawned from March 17 through April 4, 1997 (for 20 days). Number of total spawned eggs was 21.28 million and fertilization rate was 72.1%. The fish began to spawn at 21.0℃ and 15.5L/8.5D. It required 65 days to spawning since the water temperature had increased from 14.5℃ to 21.0℃.
Spawning of the fish was occurred from February 22 through April 2, 1997 (for 40 days) in Exp. Ⅰ. Number of total spawned eggs was 30.04 million and fertilization rate was 77.2%. The fish began to spawn at 21.0℃ and 15.5L/8.5D. It required 65 days to spawn since the water temperature had increased from 14.5℃ to 21.0℃.
Spawning of the fish was not occurred until March 9, 1997 in Exp. Ⅱ. After 7 days, photo-period was suddenly incresed to 15.5L/8.5D and fish were spawned from March 17 through April 4, 1997 (for 20 days). Number of total spawned eggs was 21.28 million and fertilization rate was 72.1%. The fish began to spawn at 21.0℃ and 15.5L/8.5D. It required 65 days to spawning since the water temperature had increased from 14.5℃ to 21.0℃.
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UCI(KEPA) : I410-ECN-0101-2009-529-015345243