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Growth and survival of hatchery reared juvenil

Nilnaj Chaitanawisuti, Anutr Kritsanapuntu, 1998. Growth and survival of
hatchery-reared juvenile spotted Babylon, Babylonia areolata Link 1807
(Neogastropoda: Buccinidae), in four nursery culture conditions. Journal of
Shellfish Research. 17(1):85-8.

Abstract
Growth and survival of hatchery-reared juvenile spotted babylon, Babylonia
areolata, were assessed for 7 mo. Juveniles with initial mean shell length of 15.0 ±
0.8 mm (n = 25) were held in a nursery culture system with four different
treatments: two substrate types and two seawater flow rates. Length and weight
measurements of individual babylon were determined monthly among the four
experimental treatments, and the average monthly growth was evaluated. There
were significant differences in both shell and tissue growth rates among the four
treatments in most months (p < 0.05). The highest growth rates occurred in the
treatment with sand substrate and flow-through seawater, whereas the lowest
growth was in the treatment with no sand substrate and static seawater. The
juveniles exhibited no growth reduction in any of the treatments except the
treatment with no sand substrate and static seawater. Survival exceeded 80% for all
treatments.




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