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espanolSe determino la calidad del agua en puntos afluentes del rio Cesar como el rio Calenturitas, Maracas y Tucuy, utilizando macro invertebrados acuaticos como bioindicadores y aplicando el indice BMWP/Col adaptado para Colombia por Roldan (Biological Monitoring Working Party score). Se establecieron cinco estaciones y dos jornadas de muestreo (periodo seco y de lluvias). Se colectaron muestras de agua para analisis fisicoquimicos e identificacion de macro invertebrados que fueron contados e identificados mediante estereomicroscopio y claves taxonomicas. En total se identificaron 1025 organismos, 589 en periodo seco y 436 en periodo de lluvias, pertenecientes a 2 phylum, 3 clases, 9 ordenes, 24 familias y 37 generos. El valor promedio del indice BMWP/Col define la calidad del agua de la estacion 1 (E1) como agua ligeramente contaminada, de calidad aceptable, E2-E3-E4 y E5 como agua moderadamente contaminada, de calidad dudosa. Agua de la estacion E5 presenta el puntaje mas bajo de todas las estaciones y las variables fisicoquimicas y microbiologicas mas altas. EnglishWater quality in tributaries points of the river Cesar such as the Calenturitas river, Maracas river and Tucuy river and using aquatic macroinvertebrates as bioindicators and applying the biotic index BMWP/Col (Biological Monitoring Working Party score) adapted to Colombia by Roldan has been assessed. Five sampling stations were established, conducting two period of sampling (dry and rainy period). Water samples were collected for physico-chemical analysis and identification of macroinvertebrates that were counted and identified by stereomicroscope and taxonomic keys. A total of 1025 organisms (589 during the dry period and 436 organisms during the rainy) and belong to 2 phylum, 3 classes, 9 orders, 24 families and 37 genera, were identified. The average value of the BMWP/Col index defines the water of E1 station as slightly polluted but of acceptable quality, E2-E3-E4 and E5 as moderately polluted and classified as of doubtful quality. Of these, water of station E5 presented the lowest score of all stations and the highest physicochemical and microbiological variables.

información tecnológica

Evaluación de la Calidad del Agua en Algunos Puntos Afluentes del río Cesar (Colombia) utilizando Macroinvertebrados Acuáticos como Bioindicadores de Contaminación