Abstract

RIOS-PULGARIN, María I.; JIMENEZ-SEGURA, Luz F.; PALACIO, Jaime A.  and  RAMIREZ-RESTREPO, John J.. THE FISH COMMUNITY OF THE AYAPEL FLOODPLAIN LAGOON, MAGDALENA RIVER (CÓRDOBA), COLOMBIA: SPACIO-TEMPORAL CHANGES IN ITS ASSEMBLAGE. Actu Biol [online]. 2008, vol.30, n.88, pp.29-53. ISSN 0304-3584.

Time and spatial changes in fish assemblage structure in Ayapel floodplain lagoon (Colombia), were observed during the hydrological cycle 2004-2005. Forty six species were captured. Cyphocharax magdalenae, Roeboides dayi and individuals of the genus Astyanax were the most abundant in number of individuals and the most frequent results showed a significant relationship between environmental characteristics of Ayapel floodplain and species assemblage. Changes in fish assemblage structure were defined by hydrological time changes more than spatial ones. Although hydrological time changes were important to fish assemblage, the hydrology of the local basin was more important than the San Jorge river floodplain pulse.

Keywords : ciénaga; fish assemblage; flood pulse; Magdalena river; Colombia.

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