The Norwegian Sea (Norskehavet; Noregshaf; Norskahavið) is a marginal sea, grouped with either the Atlantic Ocean or the Arctic Ocean, northwest of Norway between the North Sea and the Greenland Sea, adjoining the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a submarine ridge running between Iceland and the Faroe Islands. To the north, the Jan Mayen Ridge separates it from the Greenland Sea.
Unlike many other seas, most of the bottom of the Norwegian Sea is not part of a continental shelf and therefore lies at a great depth of about two kilometres on average. Rich deposits of oil and natural gas are found under the sea bottom and are being explored commercially, in the areas with sea depths of up to about one kilometre. The coastal zones are rich in fish that visit the Norwegian Sea from the North Atlantic or Barents Sea (cod) for spawning. The warm North Atlantic Current ensures relatively stable and high water temperatures, so that unlike the Arctic seas, the Norwegian Sea is ice-free throughout the year. Recent research has concluded that the large volume of water in the Norwegian Sea with its large heat absorption capacity is more important as a source of Norway's mild winters than the Gulf Stream and its extensions.
The International Hydrographic Organization defines the limits of the Norwegian Sea as follows:
On the Northeast. A line joining the southernmost point of West Spitzbergen to North Cape of Bear Island, through this island to Cape Bull and thence on to North Cape in Norway (25°45'E).
On the Southeast. The West coast of Norway between North Cape and Cape Stadt ().
On the South. From a point on the West coast of Norway in Latitude 61°00' North along this parallel to Longitude 0°53' West thence a line to the NE extreme of Fuglö () and on to the East extreme of Gerpir () in Iceland.
On the West. The Southeastern limit of Greenland Sea [A line joining the southernmost point of West Spitzbergen to the Northern point of Jan Mayen Island, down the West coast of that island to its Southern extreme, thence a Line to the Eastern extreme of Gerpir () in Iceland].
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The Barents Sea (ˈbærənts , also USˈbɑːrənts ; Barentshavet, ˈbɑ̀ːrn̩tsˌhɑːvə; Barentsevo More) is a marginal sea of the Arctic Ocean, located off the northern coasts of Norway and Russia and divided between Norwegian and Russian territorial waters. It was known earlier among Russians as the Northern Sea, Pomorsky Sea or Murman Sea ("Norse Sea"); the current name of the sea is after the historical Dutch navigator Willem Barentsz. The Barents Sea is a rather shallow shelf sea, with an average depth of , and it is an important site for both fishing and hydrocarbon exploration.
Tromsø (ˈtrɒmsoʊ, UKalsoˈtrɒmsɜː, ˈtrʊ̂msœ; Romsa ˈromːsa; Finnish and Tromssa; Tromsö) is a municipality in Troms og Finnmark county, Norway. The administrative centre of the municipality is the city of Tromsø. Tromsø lies in Northern Norway. The municipality is the 21st largest by area out of the 356 municipalities in Norway. With a population of 77,544, Tromsø is the 12th-most populous municipality in Norway. The municipality's population density is and its population has increased by 12.
The bowhead whale (Balaena mysticetus) is a species of baleen whale belonging to the family Balaenidae and is the only living representative of the genus Balaena. It is the only baleen whale endemic to the Arctic and subarctic waters, and is named after its characteristic massive triangular skull, which it uses to break through Arctic ice. Other common names of the species included the Greenland right whale, Arctic whale, steeple-top, and polar whale.
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