ECOLOGY OF THE COREGONUS NASUS FROM RIVERS AND LAKES OF THE SUBARCTIC REGION OF SIBERIA
Coregonus nasus in the rivers and lakes of subarctic zone of Siberia is represent by three environmental forms: migratory riverain, lake-riverain and lake. All these variants of Coregonus nasus is characterized by a complex set of adaptations that had formed in the process of natural selection in response to habitat conditions in the reservoirs of tundra and forest tundra. State of the fisheries of Coregonus nasus in the reservoirs Subarctic Siberia is now satisfactory, however this does not exclude the need to regulate its production in accordance with scientific recomendations.