Vista normal Vista MARC

Length-weight and length-length relationships, gonadosomatic indices and size at first maturity of Eugerres mexicanus (Steindachner, 1863) (Percoidei: Gerreidae) from the Usumacinta River, Mexico

Tipo de material: Artículo en línea Artículo en línea Idioma: Inglés Tipo de contenido:
  • Texto
Tipo de medio:
  • Computadora
Tipo de soporte:
  • Recurso en línea
Tema(s) en español: Tema(s) en inglés: Recurso en línea: En: Journal of Applied Ichthyology Volumen 30, número 1 (February 2014), páginas 218-220Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Resumen:
Inglés

This study examines the length-weight (L-W) and length- length (L-L) relationships, gonadosomatic indices, and size at sexual maturity for individuals of the endemic Mexican mojarra, Eugerres mexicanus (Steindachner, 1863) from the Usumacinta River Basin, Tabasco, Mexico. From April 2008 to January 2010, 360 specimens were examined, including 151 (41.9%) male, 179 (49.7%) female and 30 unsexed (8.3%) individuals. Overall female:male ratio was 1.2 : 1. Gonadosomatic index (GSI) values indicate increased repro- ductive activity during February, with significant differences between males (GSI = 2.07) and females (GSI = 5.48). The mean size at first maturity (L 50 ) was 17.3 cm TL for males and 20.5 cm TL for females.

Número de sistema: 18226
Lista(s) en las que aparece este ítem: Producción Rocío Rodiles Hernández
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Valoración
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Estado Código de barras
Artículos Biblioteca Electrónica Recursos en línea (RE) ECOSUR Recurso digital ECO400182265239

Disponible para usuarios de ECOSUR con su clave de acceso

This study examines the length-weight (L-W) and length- length (L-L) relationships, gonadosomatic indices, and size at sexual maturity for individuals of the endemic Mexican mojarra, Eugerres mexicanus (Steindachner, 1863) from the Usumacinta River Basin, Tabasco, Mexico. From April 2008 to January 2010, 360 specimens were examined, including 151 (41.9%) male, 179 (49.7%) female and 30 unsexed (8.3%) individuals. Overall female:male ratio was 1.2 : 1. Gonadosomatic index (GSI) values indicate increased repro- ductive activity during February, with significant differences between males (GSI = 2.07) and females (GSI = 5.48). The mean size at first maturity (L 50 ) was 17.3 cm TL for males and 20.5 cm TL for females. Inglés