Determinación de la biodiversidad y calidad del agua mediante el estudio de macroinvertebrados acuáticos, parámetros fisicoquímicos y microbiológicos en la quebrada "Santa Isabel" cantón Rumiñahui, provincia de Pichincha

Abstract

The present research work aims to determine the biodiversity and water quality in the “Santa Isabel” stream located in the Rumiñahui canton, province of Pichincha, through the use of Biological Indices (BMWP/col, ABI, E.P.T, Shannon - Weaver) and Water Quality Index ICA. The analysis of the ICA water quality index resulted in poor water quality, coinciding with the results of the biological indexes that qualify the water as critical, very critical, very bad and bad. Using the Shannon-Weaver index, it was determined that there is a low diversity of macroinvertebrates in the “Santa Isabel” stream at the high point and almost nonexistent in the middle and low points. It was possible to verify that the values resulting from the physicochemical and microbiological analyses are within the range of the permissive limit of the environmental regulations in force, except for the parameter Nitrates, which exceeded the maximum permissible 13 mg/L.