SciELO - Scientific Electronic Library Online

 
vol.58 número1Peces criptobentónicos de arrecifes coralinos en el Parque Nacional Archipiélago de Los Roques, Caribe de VenezuelaFive new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Revista de Biología Tropical

versión On-line ISSN 0034-7744versión impresa ISSN 0034-7744

Resumen

BELTRAN-ALVAREZ, Rigoberto; SANCHEZ-PALACIOS, Jesús; VALDEZ, Guadalupe L  y  ORTEGA-SALAS, Armando A. Edad y crecimiento de la mojarra Oreochromis aureus (Pisces: Cichlidae) en la Presa Sanalona, Sinaloa, México. Rev. biol. trop [online]. 2010, vol.58, n.1, pp.325-338. ISSN 0034-7744.

Age and growth of Oreochromis aureus (Pisces: Cichlidae) in Sanalona Reservoir, Sinaloa, Mexico. Oreochromis aureus is an important fishing resource in this reservoir but little biological information is available for management purposes. To study its age and growth in the site, we obtained samples using gill nets of six mesh sizes, and collecting fish from commercial catches, on a bimonthly basis, from November 2006 to September 2007. Total length (Lt), total weight (Pt), sex and gonadosomatic maturity were analyzed. Age determination was done by readings of scale growth marks, and its validation was made by the marginal and gonadosomatic index. A total of 384 fish were collected. Length and weight varied from 125 to 345mm and from 40 to 671g, respectively. Growth in length and weight are described by the following von Bertalanffy equations: Lt=416 [1-e-0.3682 (t+0.4975)] and Pt=1323[1-e -0.3682(t+0.4975)]]3.0652. Two growth marks per year were registered, these were associated to metabolic and environmental factors like reproduction and temperature. Rev. Biol. Trop. 58 (1): 325-338. Epub 2010 March 01.

Palabras clave : age; growth; Oreochromis aureus; reservoir; Mexico.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons