Sawfish
Sawfishes, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish with some species reaching lengths of about . They are found worldwide in tropical and subtropical regions in coastal marine and brackish estuarine waters, as well as freshwater rivers and lakes.
Sawfish
Relatively little is known about the reproductive habits of the sawfish, but all species are ovoviviparous with the adults females giving birth to live young once a year or every second year. In general, males appear to reach sexual maturity at a slightly younger age and smaller size than females. As far as known, sexual maturity is reached at an age of 7–12 years in "Pristis" and 2–3 years in "Anoxypristis". In the smalltooth and green sawfish this equals a total length of , in the largetooth sawfish at , in the dwarf sawfish about , and in the narrow sawfish at . This means that the generation length is about 4.6 years in the narrow sawfish and 14.6–17.2 years in the remaining species.