Aspects of the reproductive biology of the Southern Stingray, Dasyatis americana, were determined from five captive adult females and their offspring. Mean size and weight of the neonates were 238.0 ± 1.6 mm disc width and 505.9 ± 10.7 g, respectively. Litter size (n = 47), which ranged from two to 10, averaged 4.2 ± 0.3 and varied directly with maternal size and indirectly with size and weight of neonates. Gestation (n = 47) ranged from 135 days to 226 days with a mean of 175.4 ± 4.1 days.
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Vol. 2000 • No. 3