Research Regarding the Use of Benctonic Macro Invertebrates on Bega River Water Quality Determination in the Timisoara Area

Abstract

The benthic macro invertebrates are considered in this century to be one of the most important biological parameters for the quality of surface waters and they have the following characteristics: they live in constant contact with the sediments where pollutants are accumulated, have a fairly long-lasting lifecycle, are present in all types of aquatic ecosystems, are easily collected and quite easy to identify. The aim of this paper is to show the use of benthic macro invertebrates on Bega River water quality determination in the Timisoara area. After the identification of macro invertebrates has done, it have been performed the density, abundance and frequency of the sample. Based on these values, we can say that the upstream segment waters falls into the category of superior quality compared to the waters of the central segment, especially in the downstream segment