Research on the water quality assessment of some tributaries of the Bistrița River in the Dornelor Basin, North-Eastern Romania, showed that all physico-chemical, microbiological parameters, the composition of algal communities or the presence of water quality bioindicators, such as the so-called “bentofauna”, i.e. families of insect larvae (ephemeroptera, trichoptera, plecoptera), worms, amphipods and others, represent the expression of a correlation of factors that demonstrate that on all formations of the hydrographic network studied, the anthropogenic influence is minimal, in the sense that there are no factors that pollute the water at a level detectable by these correlated measurements (see page 450).
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