Resumo

DORIA-GONZALEZ, María Alejandra; ESPITIA-GALVIS, Andrea Marcela; SEGURA-GUEVARA, Fredys F.  e  OLAYA-NIETO, Charles W.. Reproductive biology of Bocachico Prochilodus magdalenae (Prochilodontidae) in the San Jorge River, Colombia. Acta biol.Colomb. [online]. 2021, vol.26, n.1, pp.54-61.  Epub 17-Mar-2021. ISSN 0120-548X.  https://doi.org/10.15446/abc.v26n1.82907.

The reproductive biology of the Bocachico, Prochilodus magdalenae, in the San Jorge River, Colombia, was studied. The species is a fish with sexual proportion female: male of 1.2:1, different than expected. It presents synchronous ovocitary development in two groups, an annual spawning that extends from April to September associated to the hydrological cycle of the San Jorge River, length at first maturity estimated in 30.2 cm TL, large oocytes of 950 μm, and average fecundity of 109 972 oocytes, whose equation was F = 7271,6 OW0,60, r = 0,93, n = 14.

Palavras-chave : fishery; oocytes; reproduction; sexual maturity (Source: AIMS).

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