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Biological notes on the reef stingray, Urobatis concentricus, an endemic species of Mexico
N R Ehemann1, X A Pérez-Palafox1, K Pabón-Aldana1
1Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, 23096, La Paz, BCS, Mexico.
Journal of Fish Biology
|August 16, 2017
Abstract:
This study found that the reef stingray Urobatis concentricus presents a matrotrophic aplacental viviparous reproduction with yolk sac and trophonemata formation. Growth of ovarian follicles occurs asynchronously and continuously with fecundity of three embryos per female. A maximum size of 58·4 cm total length and 37·6 cm disc width was recorded, corresponding to a mature female of 3 or 4 years of age.

