Evaluación de la calidad de agua e integridad ecológica del herbazal inundable de páramo sector de la Laguna de Anteojos perteneciente al Parque Nacional Llanganates

Abstract

The aim of the research was to evaluate the water quality through the physical-chemical and microbiological analysis using the criteria to identify benthic macroinvertebrates in the paramo flooded grassland lake system located in the Anteojos lagoon and the Yanayacu river micro-basin from San Miguel rural parish, Salcedo county, applying the Shannon-Wiener, Fisher, Simpson diversity and the ABI water quality indices in eight monitoring stations which are heterogeneously scattered in lentic (2 points) and lotic (6 points) systems and based on three repetitions from July to October. The results obtained through weighting contrasted with the TULSMA 097-A, annex 1, book VI reveals that the pH and total coliforms, in some points are out of the norm for human consumption and the preservation of flora and fauna, so that Anova and Tuckey tests were used to obtain a low significance level for all the points except for total coliforms at the HIPNMAC2 point, whose domain is in the adjacent part of San Miguel parish with a high significance level. The contribution of this research results in a moderate/poor quality with an average value of 38 for ABI. The richness and abundance calculation through a similarity analysis with PRIMER 7 in all points predicted difference breaches in lotic systems with greater richness, but less abundance of specimens and in lentic systems with greater abundance but less richness in specimens. In this way, it was possible to use a dendrogram through the Bray Curtis index in order to obtain differences between families that go from point to point. It is recommended for this type of study to add both, physical-chemical parameters and flow measurements.