Growout of hatchery-reared juvenile spotted babylon (<Emphasis Type="Italic">Babylonia areolate</Emphasis> link 1807) to marketable size at four stocking densities in flow-through and recirculating seawater systems |
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Authors: | Email author" target="_blank">N?ChaitanawisutiEmail author S?Kritsanapuntu S Y?Natsukari |
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Institution: | (1) Aquatic Resources Research Institute, Chulalongkorn University, Phya Thai Road, 10330 Pathumwan, Bangkok, Thailand;(2) Department of Bioproduction, Faculty of Technology and Management, Prince of Songkla University, 84100 Suratani Province, Thailand;(3) Faculty of Fisheries, Nagasaki University, 1–14 Bunkyo-Machi, 852 Nagasaki, Japan |
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Abstract: | Hatchery reared juvenile spotted babylon, Babylonia areolata, were raised in canvas rearing tanks at four stocking densities (100, 200, 300 and 400 ind. m–2) in flow-through and recirculating seawater systems until they reached the marketable sizes of 100–140 snails/kg. At all stocking densities, final increments in mean length and weight of snails held in flow-through systems were higher than those in recirculating systems, there was a significant effect (p < 0.05) of culture system on final length and weight. Mean (±SE) survival of snails held at 100 ind. m–2 in the flow-through system was 100.0 ± 0.1% but was not significantly higher than survival in any other treatment (p > 0.05). Mean survival of snails held in the recirculating system was not significantly lower than at any stocking density in the flow-through system (p > 0.05). |
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Keywords: | Spotted babylon Babylonia Areolata Growout Stocking density Flow-through water system Recirculating water system |
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