Section 24
Chapter 23,598

Simplificacion en el uso of macroinvertebrados en la evaluacion de la calidad de las aguas en sistemas fluviales

Figueroa, R.; Ruiz, V.H.; Encina Montoya, F.; Palma, A.

Interciencia 30(12): 770-774


ISSN/ISBN: 0378-1844
Accession: 023597879

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Macroinvertebrates have been used for decades to evaluate water quality, using measures of diversity, biotic indexes and comparative analysis. The taxonomic level of family allows a general interpretation of the ecological quality of a fluvial system, and is possible to infer the quality of these systems compared to selected references sites. This paper analyzed three localities of Central-South Chile by means of grouping analysis, evaluating if there is any loss of information when using two hierarchic levels. It is shown that the family level of benthic macroinvertebrates is sufficient for environmental monitoring. The practical advantages, the integrating capacity that can be reached and its relation with environmental variables are discussed.

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