Aplicación combinada del método BMWP –ABI – ICA para la evaluación de la calidad del agua de la microcuenca del río Atapo-Pomachaca parroquia Palmira.

Abstract

The objective of this research was to apply the combination of the BMWP (Biological Monitoring Working Party) -ABI (Andean Biotic Index) - ICA (Water Quality Index) for the Water of the micro-basin of the river Atapo-Pomachaca parish Palmira. The water quality indexes BMWP, ABI and ICA were used during 5 water monitorizations, for the period MayJuly

in 5 selected points. The 9 parameters of the ICA index and the samples of macroinvertebrates for the BMWP and ABI indexes were analyzed in the laboratory, the results of which were collected in inventories. Results obtained from water quality according to the indexes were analyzed statistically in the IBM SPSS program by the Anova unifactorial and Tuckey b, with significant differences of water quality in Monitoring 2 with respect to Monitoring 4 and 5. The contribution of this research resulted in Good water quality according to the ICA index with the value of 79.62, a Doubtful water quality according to the BMWP/Col index with a value of 68 and Acceptable water quality in the ABI index with the value of 64, In addition the comparison of the parameters of the index ICA with the standard of water quality for the uses of: human consumption, agriculture, livestock and the preservation of flora and fauna. Therefore, we conclude that the water quality is acceptable for the uses that are given to the water resource in the Palmira parish. It is recommended to use the ABI index in subsequent studies in the micro watershed where the water quality is determined using biological indicators with macroinvertebrates because this index was adapted from the original BMWP for Andean zones.