Determination of water quality from the composition of communities of aquatic macroinvertebrates present in the wetland Gualí Tres Esquinas

Abstract

Objective: To established the water quality at the Gualí Tres Esquinas wetland in the municipality of Funza from the aquatic macroinvertebrate communities, as a tool for the hydric resource’s management and conservation. Metodology: 11 sampling stations were established with a longitudinal path of 3.2 km approximately, biological material was collected in each station, also there physico-chemical parameters in situ were registrated, the information was analized through tables and databases that allowed to idetify the BMWP/Col and similarity index. Result: 776 aquatic macroinvertebrate specimen were collected and identified, clasificated in 6 classes, 17 families and 19 gender, the specimen collected through this study represente the taxonomyc family’s Chironomidae, Hyalellidae, Culicidae, Physidae, Scirtidae, Elmidae, Dysticidae y Tipulidae that are a contamination index by organic material with tendency to hypoxia, it determines the hydric resource’s critical quality. Conclussions: The Gualí Tres Esquinas wetland presents slightly contaminated water at stations 1.5 and 8. Very contaminated water at stations 2, 3, 4, 6, 7 and 9. And heavily contaminated water by organic material at stations 10 and 11