Distribution of the communities of Ephemeroptera, Plecoptera and Trichoptera in the basin of the Sasar river

Life of zoobenthic communities that populate the watercourses is influenced by the mode of setting up of the substrate, slope, flowing speed and water flow as well as by the anthropogenic influence. Ephemeroptera, and Plecoptera and also Trichoptera (EPT) are the main biomarkers in the evaluation of the health condition of the aquatic ecosystems. The new river classification methodologies in quality classes have been tested and mostly harmonized at European level. This paper followed the distribution mode of EPT in the Sasar river basin and evidencing their biomarker quality.