Water quality in lowland lentic system was evaluated through the use of aquatic macroinvertebrates as bioindicators, and their relationship with basic physicochemical factors was considered; thus, two biotopes were established for identifying both groups of macroinvertebrates, one being the population associated with macrophytes (AM) and the other being benthic (B). As a result, 46 families of macroinvertebrates were collected, with Hydrobiidae, Chironomidae, Thiaridae and Polymitarcyidae being the most abundant in the
