Icthyological variety in the river basins under anthropogenic load (on the example of the Amur, Zabelovka, Urmia, and Tunguska)

The data on the comparative analysis of fish fauna biodiversity in two sites of the Amur River basin, with a different degree of anthropogenic load are presented in the paper. The quantitative and qualitative distinctions, characterizing biodiversity of the fish fauna in the river basin of Zabelovka, and flood-lands of the Urmia and Tunguska rivers are revealed. It presentes for the first time that this new regional data is cited.