The fish community of the Paredes floodplain lake, Magdalena medio (Santander) and its association with spacio-temporal and environmental variables

Abstract

Between february and december of 2011 the fish communities of the ciénaga de Paredes, were studied by four samples in periods contrasting climates, station 1, corresponding to the inlet of the pipe Peruétano (BCP), station 2, Swamp Center (CC) and station 3, the mouth of the creek Gómez (DQG).They were captured 762 individuals, the 67%, 28%, and 4% corresponded to the orders Characiformes, Siluriformes and Perciformes respectively, the remaining 1% corresponds to the orders of Gymnotiformes and Myliobatiformes. It was found 29 species, of which, Prochilodus magdalenae, Ageneiosus pardalis, Curimata mivartii, Ctenolucius hujeta, Cyphocharax magdalenae and Hoplias malabaricus were the most dominant (abundant and frequent). It was established that changes in the conformation of the associations of fishes were evident between climatic periods between environments. From multivariate Canonical Correspondence Analysis (CCA), temperature, depth, turbidity and DQO are the physical and chemical variables that best explain the relationship between the environmental characteristics of the swamp and species associations.

Keywords

• Asociación de peces
• Cuenca Magdalena-Cauca
• Humedales
• Temporalidad
• Variables físicoquímicas