SciELO - Scientific Electronic Library Online

vol.54 número4Fecundity, survival, and growth of the seahorse Hippocampus ingens (Pisces: Syngnathidae) under semi-controlled conditionsInitial sexual maturity and fecundity of the goldfish Carassius auratus (Perciformes: Cyprynidae) under semi-controlled conditions índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados


Revista de Biología Tropical

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


RAMOS-SANTIAGO, Eduardo; RAMIREZ-GUTIERREZ, José Martín; MENDOZA-RODRIGUEZ, Ricardo  y  TAPIA-GARCIA, Margarito. Reproducción, distribución y abundancia del pez Pseudupeneus grandisquamis (Perciformes: Mullidae), en el Golfo de Tehuantepec, México. Rev. biol. trop [online]. 2006, vol.54, n.4, pp.1103-1112. ISSN 0034-7744.

Reproduction, distribution and abundance of the fish Pseudupeneus grandisquamis (Perciformes: Mullidae), in the Gulf of Tehuantepec, Mexico. As result of its biological and ecological strategies, Pseudupeneus grandisquamis is a dominant species in the demersal community of the Gulf of Tehuantepec, Mexico. Our main objective was to understand these strategies with respect to distribution, abundance and reproduction. We analyzed 5 175 individuals representing partial collections from five oceanographic expeditions between 1989 and 1990. It is a typical demersal marine species, with a wide distribution on the continental shelf. The highest abundance of P. grandisquamis occurs in March and November, around the 40 m isobath, facing the Superior-Inferior lake systems and Mar Muerto Lagoon. Reproduction occurred during all of the months studied, particularly from August to October, corresponding to the rainy season, when the salinity and temperature is lower. The presence of juveniles, principally in November and March, suggests a long period of recruitment; they are distributed mainly in the Superior-Inferior Lagoons, which serves as a nursery area where they remain until they are adults. The total female to male sex ratio was nearly 1:1 throughout the year. The maximum total length was 213 mm and the size at first maturity was 138 mm TL. The high abundance and reproduction occur when the gulf has a high level of ecological production, in accordance with the dynamics of the system, where the influence of coastal lagoons is important. Protection strategies for the area above the continental shelf of the Gulf of Tehuantepec are recommended for the estuary processes and for the reproduction and rearing of a large number of species, including P. grandisquamis. Rev. Biol. Trop. 54 (4): 1103-1112. Epub 2006 Dec. 15.

Palabras clave : Pseudupeneus grandisquamis; reproduction; demersal; Tehuantepec; ecology; dominance; lagoons.

        · 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