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Water macro-invertebrates are a well-known group in the owing-water ecosystems, though they have been poorly studied in the lentic ecosystems. In Colombia, studies about the relationship between this group and the oating macrophyte roots are scarce. Notas de autor: a Autor de correspondencia. Correo electrónico: sergio.murillomontoya@gmail.com Ambiente y Desarrollo, 2018, 22(43), ISSN: 0121-7607 / 2346-2876 erefore, this work aims to determine association between Eichhornia crassipes and the water macro-invertebrates, and their relationship to the physical-chemical variables such as the dissolved oxygen, pH, total dissolve solids, alkalinity, transparency, copper, water temperature, free chlorine, total chlorine, swamp depth and macrophyte spreading in the Palagua swamp (Colombia). is way, 11.759 macro-invertebrates, belonging to 37 families, were recorded and Planorbidae and Cyclestheriidae were the most abundant. Regarding the physical-chemical parameters, alkalinity showed signicant differences regarding the time, while only the macrophyte spreading showed differences regarding the space. In turn, the Spearman coefficient showed a signicant but inverse correlation between the swamp depth and the dissolved oxygen. e canonic correspondence analysis indicates that alkalinity and swamp depth are the variables with the greatest inuence on the macro-invertebrates. e family diversity reported in the study was high as compared to the data available in the literature.

Macroinvertebrados asociados a raíces de Eichhornia crassipes (Pontederiaceae) en la Ciénaga de Palagua (Colombia)