In XVI century at the behest of Gerhardus Mercator the contemporary territory of the Barents Sea was called thy Pechora Sea, but times have changed and now the Pechora Sea is informal name for water areas at the South-East of the Barents Sea that are limited by Vaigach and Kolguev islands.The Pechora Sea is famous for polar nights and bears, eternal frost, codfish, sea calves and the richest hydrocarbon reserves.