Reproducción, distribución y abundancia del pez Pseudupeneus grandisquamis (Perciformes: Mullidae), en el Golfo de Tehuantepec, México

Abstract

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.

Biología reproductiva de <i>Mulloidichthys dentatus</i> (Perciformes: Mullidae) en el Pacífico tropical mexicano

“…El índice gonadosomático (IGS) es uno de los índices más utilizados como indicador del periodo reproductivo de muchas especies de peces de la familia Mullidae (Reñones et al 1995(Reñones et al , İşmen 2005(Reñones et al , 2006Lucano-Ramírez et al 2006, Ramos-Santiago et al 2006, Pavlov et al 2011, Sieli et al 2011, Aydin & Karadurmus 2013, El-Drawany 2013, Kherraz et al 2014, Arslan & İşmen 2014. Los valores altos del IGS están asociados con la mayor actividad reproductiva y los valores bajos están relacionados con épocas de reposo gonadal (Htun-Han 1978).…”

“…Lucano-Ramírez et al (2006) mencionan que P. grandisquamis, se reproduce en mayo, noviembre y diciembre en la costa de Jalisco. Ramos-Santiago et al, (2006) registraron que P. grandisquamis en el Golfo de Tehuantepec se reproduce en marzo y octubre. Otras especies de la familia Mullidae presentan dos periodos reproductivos: M. martinicus, en el Mar Caribe (Munro 1976) y en el Mar Mediterráneo, M. surmuletus (Reñones et al 1995, Kherraz et al 2014, U. moluccensis (İşmen 2005), U. pori (İşmen 2006(İşmen ), M. barbatus (Sieli et al 2011 y P. multifasciatus (Pavlov et al 2011).…”