Abstract
Growth, survival and shell normality of hatchery reared juvenile Babylonia areolata were examined at four water exchange regimes of 0, 15, 30 and 60 day intervals in a recirculating seawater system over a 120 day experimental period. Higher body weight gains and shell length increments were observed in snails held at water exchange of 15 day intervals, especially when compared with those held at water exchange of 60 and 0 day intervals (P < 0.05). Water exchange affected the final survival of B. areolata. At the end of the experiment, final survival rates were 65.47 ± 0.66%, 87.48 ± 0.67%, 86.34 ± 0.92% and 78.50 ± 3.26% for snails held in the water exchange treatments of 0, 15, 30, and 60 day intervals, respectively, and those of shell abnormality were 97.65 ± 1.04%, 93.09 ± 2.34%, 97.08 ± 1.18% and 96.71 ± 1.84%, respectively. The present study concluded that water exchange regimes of the recirculating system influenced growth, survival, shell normality and water quality of the recirculating culture system for this species.
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Acknowledgements
We thank the National Research Council of Thailand (NRCT), who provided fund for this research in the fiscal year 1996–2005. We are especially grateful to Associate Professor Dr. Padermsak Jarayabhand, Director of the Aquatic Resources Research Institute, Chulalongkorn University, for his encouragement and facilities.
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Kritsanapuntu, S., Chaitanawisuti, N., Santhaweesuk, W. et al. Effects of water exchange regimes on growth, survival and shell normality of the hatchery reared juvenile spotted babylon (Babylonia areolata Link 1807) in a recirculating seawater system. Aquacult Int 14, 587–594 (2006). https://doi.org/10.1007/s10499-006-9057-y
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DOI: https://doi.org/10.1007/s10499-006-9057-y