Polar seas Polar seas Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its maximum, but out of phase in the two hemispheres. The polar seas contain a huge biome with many organisms. Among the species that inhabit various polar seas and surrounding land areas are polar bear, reindeer (caribou), muskox, wolverine, ermine, lemming, Arctic hare, Arctic ground squirrel, whale,
Kara Sea Port and Dikson and it is important as a fishing ground although the sea is ice-bound for all but two months of the year. Significant discoveries of petroleum and natural gas, the East-Prinovozemelsky field, an extension of the West Siberian Oil Basin, have been made but have not yet been developed. In 2014, US government sanctions resulted in Exxon having until September 26 to discontinue its operations in the Kara Sea. The International Hydrographic Organization defines the limits of the Kara Sea as follows: There are many islands and island groups in the Kara Sea. Unlike the other marginal seas