Biological notes on the reef stingray,Urobatis concentricus,an endemic species of Mexico |
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| Authors: | N. R. Ehemann X. A. Pérez‐Palafox K. Pabón‐Aldana P. A. Mejía‐Falla A. F. Navia V. H. Cruz‐Escalona |
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| Affiliation: | 1. Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, 23096, La Paz, BCS, Mexico;2. Fundación colombiana para la investigación y conservación de tiburones y rayas, SQUALUS, Calle 10a # 72‐35, Apto 310E, Cali, Colombia |
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| 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. |
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| Keywords: | Batoids Gulf of California morphometry reproduction Urotrygonidae |
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