 There are the irrational fishing and pollution with sludge and secondary by-products of exploitation of forest resources.Picking a fish stock is trying to compensate for the regular stocking of, which in turn leads to the question of local populations gene pool, because of the autochthonous specificities, even in the source area of the flows of the Vrbanja river and its tributaries.According to sources, the first settlement in the Vrbanja river valley dates to the Neolithic.