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No. de sistema: 000018226

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040 _ _ a| ECO
c| ECO
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245 0 0 a| 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
520 1 _ a| 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.
650 _ 4 a| Eugerres mexicanus
650 _ 4 a| Índice gonadosomático
650 _ 4 a| Biología pesquera
651 _ 4 a| Tenosique (Tabasco, México)
654 1 _ a| Fisheries
700 1 _ a| Valdez Zenil, José
700 1 _ a| Rodiles Hernández, María del Rocío
d| 1956-
e| coaut.
700 1 _ a| González Acosta, Adrián Felipe
e| coaut.
700 1 _ a| Mendoza Carranza, Manuel
c| Dr.
e| coaut.
700 1 _ a| Barba Macías, Everardo
c| Dr.
e| coaut.
n| 16678693600
773 0 _
t| Journal of Applied Ichthyology
g| Vol. 30, no. 1 (February 2014), p. 218–220
x| 0175–8659
856 4 1 u| http://onlinelibrary.wiley.com/doi/10.1111/jai.12267/pdf
z| Artículo electrónico
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Junio 2013
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
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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
Valdez Zenil, José (autor)
Rodiles Hernández, María del Rocío, 1956- (autor)
González Acosta, Adrián Felipe (autor)
Mendoza Carranza, Manuel (autor)
Barba Macías, Everardo (autor)
Contenido en: Journal of Applied Ichthyology. Vol. 30, no. 1 (February 2014), p. 218–220. ISSN: 0175–8659
No. de sistema: 18226
Tipo: - Artículo con arbitraje
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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."