TY - JOUR
T1 - 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
AU - Valdez-Zenil, J.
AU - Rodiles-Hernández, R.
AU - González-Acosta, A. F.
AU - Mendoza-Carranza, M.
AU - Barba Macías, E.
PY - 2014/2
Y1 - 2014/2
N2 - 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 reproductive activity during February, with significant differences between males (GSI = 2.07) and females (GSI = 5.48). The mean size at first maturity (L50) was 17.3 cm TL for males and 20.5 cm TL for females.
AB - 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 reproductive activity during February, with significant differences between males (GSI = 2.07) and females (GSI = 5.48). The mean size at first maturity (L50) was 17.3 cm TL for males and 20.5 cm TL for females.
UR - http://www.scopus.com/inward/record.url?scp=84891836172&partnerID=8YFLogxK
U2 - 10.1111/jai.12267
DO - 10.1111/jai.12267
M3 - Artículo
SN - 0175-8659
VL - 30
SP - 218
EP - 220
JO - Journal of Applied Ichthyology
JF - Journal of Applied Ichthyology
IS - 1
ER -