East Siberian Sea East Siberian Sea The East Siberian Sea () is a marginal sea in the Arctic Ocean. It is located between the Arctic Cape to the north, the coast of Siberia to the south, the New Siberian Islands to the west and Cape Billings, close to Chukotka, and Wrangel Island to the east. This sea borders on the Laptev Sea to the west and the Chukchi Sea to the east. This sea is one of the least studied in the Arctic area. It is characterized by severe climate, low water salinity, and a scarcity of flora, fauna and human population, as
Northeast Siberian taiga world, due the very sparse population and difficult access. It is mostly in the Sakha Republic (Yakutsk region). The ecoregion covers an area about 1,800 km west-east by 1,000 km north-south. The western border is the Lena River; beyond that is the East Siberian taiga ecoregion. The eastern edge is the Kolyma River, beyond which farther east is the Bering tundra ecoregion. To the north is a strip Arctic coastal tundra about 100 km wide, the Northeast Siberian coastal tundra ecoregion. The Okhotsk Sea to the south completes the outline of the ecoregion, but internally the Verhkoyansk and Chersky mountains