Smalltooth sawfishes are ovoviviparous and reproduce via internal fertilization as occurs in all elasmobranchs. Maturity is believed to occur at approximately 10 years of age. Males measure at approximately 2.7 m (8.9 feet) in length, while females measure approximately 3.6 m (11.8 feet) at maturity (Simpfendorfer 2005). There have been no comprehensive studies on age and growth parameters in smalltooth sawfishes, however, based on the biology of the closely related largetooth sawfish (Pristis perotteti), it is believed that P. pectinata is slow to grow and mature. This would suggest a low intrinsic rate of increase as well as low rebound potential (Smith et al 1998).Simpfendorfer (2000) modeled demography of the smalltooth sawfish and reported an intrinsic rate of increase ranging from 0.08 - 0.13 years, with a population doubling time of 5.4 - 8.5 years.
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