Volumen 44 - Número 1 - 2009
Artículo

Ciclo reproductivo y talla media de madurez del congrio colorado, Genypterus chilensis (Guichenot, 1881) en el litoral de Talcahuano, Chile

Javier Chong¹ y Paola González¹

¹Departamento de Ecología Costera, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Caupolicán 491, casilla 297, Concepción, Chile

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A study on the reproduction of the red cusk eel Genypterus chilensis was conducted in the fishing area of Talcahuano, Chile. The mean sexual maturity and size at first maturity were determined in a sample of 490 specimens. The microscopic analysis showed the simultaneous presence of oocytes in different maturity stages, in mature individuals. This allows the characterization of the red cusk eel as a partial or multiple spawner. The frequencies of maturity stages in females showed a spawning period between July and October, and a secondary peak in March. The size at first maturity of the red cusk eel was 72.4 cm.

Palabras clave: Reproduction, ovary, histology, mature, Ophidiidae