The Dynamic of Stocks and Some Biological Parameters of Whitefish Species in the Pechora River

Abstract

Dynamic of stocks of whitefish species in it correlation to environment in the Pechora river and inflow was reviewed. At population level there is a violation of migratory ways and a mode of natural reproduction of whitefish species, change of their number and a condition of stocks. At the organisms level degradation of a physiological condition of concrete individuals and strengthening of epizootiya is observed.