Determinación de la calidad de agua mediante el uso de diatomeas bentónicas en el tramo padre Carollo-Paus, del Rio Blanco. parroquia Rio Blanco, cantón Morona, provincia de Morona Santiago.

Abstract

The objective was to determine the water quality of the Río Blanco through the use of benthic diatoms and using the IPS Biological Index, which does not condition the ecological characteristics and population dynamics of the Padre Carollo-Paus del Río Blanco section in the province of Morona Santiago; sweet aquaculture systems is one of the most important natural resources for life, despite these ecosystem have suffered major impacts caused mainly by human activities which directly affect aquatic biota and water quality. In addition, parameters were measured: physicochemical in situ and biodiversity indexes such as Margalef and Pielou were applied, for this purpose 3 point were identified. To collect the samples, a soft bristle was used, performing there repetitions at each sampling point. A total of 1414 diatoms distributed in 21 species were recorded. No significant differences were fund between the diatomaceous richness. The IPS biological index due to its versatility is very useful for the management of water quality allowing a quick and accurate evaluation, based on the results of the physicochemical and microbiological analysis. It is concluded that anthropogenic activities have a direct influence on the water quality of the microbasin. In general, the Padre Carollo-Paus del Río Blanco section presents good water quality. It is necessary to develop a biological quality index for Ecuador, where the entire altitudinal and ecosystem range of the country is covered, as well as the families of common diatoms in the bodies of water.