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자료유형
학술저널
저자정보
저널정보
한국수산과학회 양식분과 한국양식학회지 한국양식학회지 제21권 제3호
발행연도
2008.8
수록면
125 - 132 (8page)

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초록· 키워드

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Seed production of olive flounder Paralichthys olivaceus was performed in a pilot RAS. The growth of juvenile olive flounder and changes in water quality were monitored for the entire production period. The pilot RAS consisted of 8 circular culture tanks (4.0 m D×1.0 m H), 2 trickling biofilters (1.7 m D×2.0 m H), 2 protein skimmers (0.8 m D×2.5 m H), and 4 sedimentation chambers (0.7 m D×1.5 m H). The culture surface area was about 100.5 ㎡ and the actual working volume was about 106.9 ㎥. As many as 300,000 fertilized olive flounder eggs were initially distributed into 2 culture tanks with the water temperature at 19.0℃. Live feeds such as rotifers and Artemia nauplii were fed until the 32nd day after hatching, and a commercial diet was fed from the 19th day to the end of the experiment. After 70 days, 150,256 juveniles with a body length of 65.8±3.9 ㎜ were produced in the RAS, with a daily growth rate for body length of 4.7%/day. At this time, the final culture density was 1,495 individuals m?², and 13.6 ℓ of makeup water, 0.071 ㎾ of electricity and 0.025 ℓ of diesel fuel were used to produce a juvenile olive flounder. During metamorphosis of the larvae, the TAN concentration increased to 0.99 ㎎/ℓ, which made the larvae sensitive to result in some mortality. However no more massive mortality occurred at the juvenile stage after metamorphosis even at a TAN concentration of 4.25 ㎎/ℓ and a NO₂?-N concentration of 2.45 ㎎/ℓ.

목차

Introduction
Materials and Methods
Results and Discussion
Acknowledgement
References

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