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자료유형
학술저널
저자정보
저널정보
한국수산과학회 양식분과 한국양식학회지 한국양식학회지 제17권 제3호
발행연도
2004.8
수록면
221 - 227 (7page)

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In the present study, we investigated the effects of food and salinity on growth and survival of river puffer, Takifugu obscurus offsprings in indoor land-based tank during the early development. In the food experiment, the river puffer larvae (TL 8.7±0.1 ㎜, BW 20.0±3.2 ㎎) were fed with tubificid, Limnodrilus gotoi, water flea, Daphnia carinata, mysid, Neomysis awatschensis, Manila clam, Ruditapes philippinarum and artificial food together Artemia nauplii for 30 days, and the growth and the survival of larvae were investigated. In the salinity experiment, the river puffer larvae and juvenile at three stages (Stage Ⅰ: TL 5.8±0.4 ㎜; Stage Ⅱ: TL 12.0±0.2 ㎜, Stage Ⅲ: TL 44.5±0.7 ㎜) were supplied with Anemia nauplii, water flea and/or artificial food and were reared in 0, 10, 20 and 30 psu at respective stages. The results shows that the growth rates of larvae feeding with artificial food and tubificid together Artemia nauplii were higher than those of larvae in other groups, but the survival rates of larvae feeding with water flea and mysid together Artemia nauplii were higher than those of larvae in other groups. In salinity, the results shows that the growth and survival rates of offsprings were significantly higher in 10~20 psu than those in 0 and 30 psu at Stage Ⅰ and Ⅱ. At Stage Ⅲ, the growth and the survival rates were the highest in 20 psu, but the lowest in 0 psu. However, it should be noted that the rates in 0 and 30 psu were significantly enhanced at Stage Ⅲ in comparison with those at Stage Ⅰ and Ⅱ. Therefore, it is concluded that river puffer, T. obscurus is euryhaline marine species, which can normally grow and live at salinities from 0 to 30 psu, and that a combinative supplement with Artemia nauplii and water flea, D. carinata may confer an advantage on growth and survival of the river puffer offsprings in indoor land-based tank.

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UCI(KEPA) : I410-ECN-0101-2009-529-015356495