Barents Sea

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Barents Sea
Barents Sea map.png
Location of the Barents Sea
Location Arctic Ocean
Coordinates 75°N40°E / 75°N 40°E / 75; 40 (Barents Sea) Coordinates: 75°N40°E / 75°N 40°E / 75; 40 (Barents Sea)
Type Sea
Primary inflows Norwegian Sea, Arctic Ocean
Basin  countries Norway and Russia
Surface area1,400,000 km2 (540,000 sq mi)
Average depth230 m (750 ft)
References Institute of Marine Research, Norway

The Barents Sea ( /ˈbærənts/ BARR-ənts, also US: /ˈbɑːrənts/ BAR-ənts; [1] Norwegian : Barentshavet, Urban East Norwegian:  [ˈbɑ̀ːrn̩tsˌhɑːvə] ; [2] Russian : Баренцево море, romanized: Barentsevo More) is a marginal sea of the Arctic Ocean, [3] located off the northern coasts of Norway and Russia and divided between Norwegian and Russian territorial waters. [4] Known among Russians in the Middle Ages as the Murman Sea ("Norwegian Sea"), the current name of the sea is after the historical Dutch navigator Willem Barentsz.


This is a rather shallow shelf sea, with an average depth of 230 metres (750 ft), and it is an important site for both fishing and hydrocarbon exploration. [5] The Barents Sea is bordered by the Kola Peninsula to the south, the shelf edge towards the Norwegian Sea to the west, and the archipelagos of Svalbard to the northwest, Franz Josef Land to the northeast and Novaya Zemlya to the east. The islands of Novaya Zemlya, an extension of the northern end of the Ural Mountains, separate the Barents Sea from the Kara Sea.

Although part of the Arctic Ocean, the Barents Sea has been characterised as "turning into the Atlantic" [6] or in process of being "Atlantified" [7] because of its status as "the Arctic warming hot spot." Hydrologic changes due to global warming have led to a reduction in sea ice and in stratification of the water column, which could produce major changes in weather in Eurasia. [6] One prediction is that as the Barents Sea's permanent ice-free area grows additional evaporation will increase future winter snowfalls in much of continental Europe. [7]


Shores of the Barents (Murman) Sea. From "Tabula Russiae", Joan Blaeu's, Amsterdam, 1614. Tabularussiae.jpg
Shores of the Barents (Murman) Sea. From "Tabula Russiae", Joan Blaeu's, Amsterdam, 1614.

The southern half of the Barents Sea, including the ports of Murmansk (Russia) and Vardø (Norway) remain ice-free year round due to the warm North Atlantic drift. In September, the entire Barents Sea is more or less completely ice-free. Until the Winter War (1939–40), Finland's territory also reached to the Barents Sea. Its harbor at Petsamo was Finland's only ice-free winter harbor.

There are three main types of water masses in the Barents Sea: Warm, salty Atlantic water (temperature >3 °C, salinity >35) from the North Atlantic drift; cold Arctic water (temperature <0 °C, salinity <35) from the north; and warm, but not very salty, coastal water (temperature >3 °C, salinity <34.7). Between the Atlantic and Polar waters, a front called the Polar Front is formed. In the western parts of the sea (close to Bear Island), this front is determined by the bottom topography and is therefore relatively sharp and stable from year to year, while in the east (towards Novaya Zemlya), it can be quite diffuse and its position can vary markedly between years.

The lands of Novaya Zemlya attained most of their early Holocene coastal deglaciation approximately 10,000 years before present. [8]


The International Hydrographic Organization defines the limits of the "Barentsz Sea" [ sic ] as follows: [9]

On the west: The northeastern limit of the Norwegian Sea [A line joining the southernmost point of West Spitzbergen [ sic ] 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 northwest: The eastern shore of West Spitzbergen [ sic ], Hinlopen Strait up to 80° latitude north; south and east coasts of North-East Land [island of Nordaustlandet ] to Cape Leigh Smith ( 80°05′N28°00′E / 80.083°N 28.000°E / 80.083; 28.000 ).
On the north: Cape Leigh Smith across the Islands Bolshoy Ostrov (Great Island) [ Storøya ], Gilles [ Kvitøya ] and Victoria; Cape Mary Harmsworth (southwestern extremity of Alexandra Land) along the northern coasts of Franz-Josef Land as far as Cape Kohlsaat ( 81°14′N65°10′E / 81.233°N 65.167°E / 81.233; 65.167 ).
On the east: Cape Kohlsaat to Cape Zhelaniya (Desire); west and southwest coast of Novaya Zemlya to Cape Kussov Noss and thence to western entrance Cape, Dolgaya Bay ( 70°15′N58°25′E / 70.250°N 58.417°E / 70.250; 58.417 ) on Vaigach Island. Through Vaigach Island to Cape Greben; thence to Cape Belyi Noss on the mainland.
On the south: The northern limit of the White Sea [A line joining Svyatoi Nos (Murmansk Coast, 39°47'E) and Cape Kanin].

Other islands in the Barents Sea include Chaichy and Timanets.


The Barents Sea was originally formed from two major continental collisions: the Caledonian orogeny, in which the Baltica and Laurentia collided to form Laurasia, and a subsequent collision between Laurasia and Western Siberia. Most of its geological history is dominated by extensional tectonics, caused by the collapse of the Caledonian and Uralian orogenic belts and the break-up of Pangaea. [10] These events created the major rift basins that dominate the Barents Shelf, along with various platforms and structural highs. The later geological history of the Barents Sea is dominated by Late Cenozoic uplift, particularly that caused by Quaternary glaciation, which has resulted in erosion and deposition of significant sediment. [11]


Phytoplankton bloom in the Barents Sea. The milky-blue colour that dominates the bloom suggests that it contains large numbers of coccolithophores. Barents Sea in Bloom.jpg
Phytoplankton bloom in the Barents Sea. The milky-blue colour that dominates the bloom suggests that it contains large numbers of coccolithophores.

Due to the North Atlantic drift, the Barents Sea has a high biological production compared to other oceans of similar latitude. The spring bloom of phytoplankton can start quite early near the ice edge, because the fresh water from the melting ice makes up a stable water layer on top of the sea water. The phytoplankton bloom feeds zooplankton such as Calanus finmarchicus, Calanus glacialis, Calanus hyperboreus, Oithona spp., and krill. The zooplankton feeders include young cod, capelin, polar cod, whales, and little auk. The capelin is a key food for top predators such as the north-east Arctic cod, harp seals, and seabirds such as common guillemot and Brunnich's guillemot. The fisheries of the Barents Sea, in particular the cod fisheries, are of great importance for both Norway and Russia.

SIZEX-89 was an international winter experiment in 1989 for which the main objectives were to perform sensor signature studies of different ice types in order to develop SAR algorithms for ice variables, such as ice types, ice concentrations and ice kinematics. [12] Although previous research suggested that predation by whales may be the cause of depleting fish stocks, more recent research suggests that marine mammal consumption has only a trivial influence on fisheries. A model assessing the effects of fisheries and climate was far more accurate at describing trends in fish abundance. [13] There is a genetically distinct polar bear population associated with the Barents Sea. [14]


Dutch whalers near Svalbard, 1690 Walvisvangst bij de kust van Spitsbergen - Dutch whalers near Spitsbergen (Abraham Storck, 1690).jpg
Dutch whalers near Svalbard, 1690


The Barents Sea was formerly known to Russians as Murmanskoye More, or the "Sea of Murmans" (i.e., their term for Norwegians). It appears with this name in sixteenth-century maps, including Gerard Mercator's Map of the Arctic published in his 1595 atlas. Its eastern corner, in the region of the Pechora River's estuary, has been known as Pechorskoye Morye, that is, Pechora Sea.

This sea was given its present name by Europeans in honor of Willem Barentsz, a Dutch navigator and explorer. Barentsz was the leader of early expeditions to the far north, at the end of the sixteenth century.

The Barents Sea has been called by sailors "The Devil's Dance Floor" due to its unpredictability and difficulty level. [15]

Ocean rowers call it "Devil's Jaw". In 2017, after the first recorded complete man-powered crossing of the Barents Sea from Tromsø to Longyearbyen in a row boat by Polar Row expedition, captain Fiann Paul was asked by Norwegian TV2 how a rower would name the Barents Sea. Fiann responded that he would name it "Devil's Jaw", adding that the winds you constantly battle are like breath from the devil's nostrils while he holds you in his jaws. [16]

The harbour of the Murmansk Fjord. MurmanskHarbour.jpg
The harbour of the Murmansk Fjord.

Modern era

Seabed mapping was completed in 1933; the first full map was produced by Russian marine geologist Maria Klenova.

The Barents Sea was the site of a notable World War II engagement, a German surface raiding attack on a British merchant convoy, which later became known as the Battle of the Barents Sea. Under the command of Oskar Kummetz, the German warships sank minelayer HMS Bramble and destroyer HMS Achates, but lost destroyer Z16 Friedrich Eckoldt, and Admiral Hipper was severely damaged by British gunfire. The Germans later retreated and the British convoy arrived safely at Murmansk shortly afterwards.

During the Cold War, the Soviet Red Banner Northern Fleet used the southern reaches of the sea as a ballistic missile submarine bastion, a strategy that Russia continues. Nuclear contamination from dumped Russian naval reactors is an environmental concern in the Barents Sea.


Political status

Signing of the Russian-Norwegian Treaty, 15 September 2010 Signing of the Russian-Norwegian Treaty on Maritime Delimitation and Cooperation in the Barents Sea and the Arctic Ocean..jpeg
Signing of the Russian-Norwegian Treaty, 15 September 2010

For decades there was a boundary dispute between Norway and Russia regarding the position of the boundary between their respective claims to the Barents Sea. The Norwegians favoured a median line, based on the Geneva Convention of 1958, whereas the Russians favoured a meridian- based sector line, based on a Soviet decision of 1926. [10] A neutral "grey" zone between the competing claims had an area of 175,000, which is approximately 12% of the total area of the Barents Sea. The two countries started negotiations on the location of the boundary in 1974, and agreed to a moratorium on hydrocarbon exploration in 1976.

Twenty years after the fall of the Soviet Union, in 2010 Norway and Russia signed an agreement that placed the boundary equidistant from their competing claims. This was ratified and went into force on 7 July 2011, opening the grey zone for hydrocarbon exploration. [17]

Oil and gas

Encouraged by the success of oil exploration and production in the North Sea in the 1960s, Norway began hydrocarbon exploration in the Barents Sea in 1969. They acquired seismic reflection surveys through the following years, which were analysed to understand the location of the main sedimentary basins. [10] NorskHydro drilled the first well in 1980, which was a dry hole, and the first discoveries were made the following year: the Alke and Askeladden gas fields. [10] Several more discoveries were made on the Norwegian side of the Barents Sea throughout the 1980s, including the important Snøhvit field. [18]

But, interest in the area began to wane due to a succession of dry holes, wells containing only gas (which was cheap at the time), and the prohibitive costs of developing wells in such a remote area. Interest in the area was reignited in the late 2000s, after the Snovhit field was finally brought into production [19] and two new large discoveries were made. [20]

The Russians began exploration in their territory around the same time, encouraged by their success in the Timan-Pechora Basin. [10] They drilled their first wells in the early 1980s, and some very large gas fields were discovered throughout this decade. The Shtokman field was discovered in 1988 and is classed as a giant gas field: currently the 5th-largest gas field in the world. Similar practical difficulties Barents Sea resulted in a decline in Russian exploration, aggravated by the nation's political instability of the 1990s.


Honningsvag is the most northerly fishing village in Norway Honningsvag 2013 06 09 3495 (10319135545).jpg
Honningsvåg is the most northerly fishing village in Norway

The Barents Sea contains the world's largest remaining cod population, [21] as well as important stocks of haddock and capelin. Fishing is managed jointly by Russia and Norway in the form of the Joint Norwegian–Russian Fisheries Commission, established in 1976, in an attempt to keep track of how many fish are leaving the ecosystem due to fishing. [22] The Joint Norwegian-Russian Fisheries Commission sets Total Allowable Catches (TACs) for multiple species throughout their migratory tracks. Through the Commission, Norway and Russia also exchange fishing quotas and catch statistics to ensure the TACs are not being violated.

But there are problems with reporting under this system, and researchers believe that they do not have accurate data for the effects of fishing on the Barents Sea ecosystem. Cod is one of the major catches. A large portion of catches are not reported when the fishing boats land, in order to account for profits that are being lost to high taxes and fees. Since many fishermen do not strictly follow the TACs and rules set forth by the Commission, the amount of fish being extracted annually from the Barents Sea is underestimated.

Barents Sea biodiversity and marine bioprospecting

The Barents Sea, where temperate waters from the Gulf Stream and cold waters from the Arctic meet, is home to an enormous diversity of organisms, which are well adapted to the extreme conditions of their marine habitats. This makes these arctic species very attractive for marine bioprospecting. Marine bioprospecting may be defined as the search for bioactive molecules and compounds from marine sources having new, unique properties and the potential for commercial applications. Amongst others, applications include medicines, food and feed, textiles, cosmetics and the process industry. [23] [24]

The Norwegian government strategically supports the development of marine bioprospecting as it has the potential to contribute to new and sustainable wealth creation. Tromsø and the northern areas of Norway play a central role in this strategy. They have excellent access to unique Arctic marine organisms, existing marine industries, and R&D competence and infrastructure in this region. Since 2007, science and industry have cooperated closely on bioprospecting, and the development and commercialization of new products. [23] [24]

Institutions and industry supporting marine bioprospecting in Barents Sea

Panoramic view of the Barents sea near Honningsvag, Norway. Mar de Barents, Noruega, 2019-09-03, DD 09-14 PAN.jpg
Panoramic view of the Barents sea near Honningsvåg, Norway.

MabCent-SFI is one of fourteen Research-Based Innovation Centers initiated by the Research Council of Norway. It is the only one within the field of “bioactive compounds and drug discovery” that is based on bioactives from marine organisms. MabCent-SFI maintains a focus on bioactives from Arctic and sub-Arctic organisms. [23] By the end of 2011, MabCent had tested about 200,000 extracts, finding several hundred "hits". Through further research and development, some of these hits will become valuable "leads", i.e. characterized compounds known to possess biological effects of interest.

The commercial partners in MabCent-SFI are Biotec Pharmacon ASA and its subsidiary ArcticZymes AS, ABC BioScience AS, Lytix Biopharma AS and Pronova BioPharma ASA. ArcticZymes is also a partner in MARZymes, a project financed by the Research Council of Norway to find marine enzymes which are adapted to the extreme conditions in the Arctic. The science partners in MabCent-SFI are Marbank, a national marine biobank located in Tromsø; Marbio, a medium/high-throughput platform for screening and identification of bioactive compounds; and Norstruct, a protein structure determination platform. Mabcent-SFI is hosted by the University of Tromsø. [23]

BioTech North is an emerging biotechnology cluster of enterprises and R&D organizations, which cooperate closely with regional funding and development actors (triple helix). As bioactive molecules and compounds from Arctic marine resources form the basis of activities for the majority of the cluster members, BioTech North serves as a marine biotech cluster. The majority of BioTech North’s enterprises are active within life science applications and markets. To date the cluster contains around thirty organizations from both the private and public sector. It has received Arena status and is funded through the [ Arena] programme financed by Innovation Norway, SIVA and The Research Council of Norway. Stakeholders of BioTech North include Barents BioCentre Lab, BioStruct, Marbank, Norut, Nofima, Mabcent-SFI, University of Tromsø, Unilab, Barentzymes AS, Trofi, Scandiderma AS, Prophylix Pharma AS, Olivita, Marealis, ProCelo, Probio, Lytix Biopharma, Integorgen, d'Liver, Genøk, Cognis, Clare AS, Chitinor, Calanus AS, Biotec Betaglucans, Ayanda, ArcticZymes AS, ABC Bioscience, Akvaplanniva.

See also


  1. Wells, John C. (2008). Longman Pronunciation Dictionary (3rd ed.). Longman. ISBN   978-1-4058-8118-0.
  2. Berulfsen, Bjarne (1969). Norsk Uttaleordbok (in Norwegian). Oslo: H. Aschehoug & Co (W Nygaard). p. 37.
  3. John Wright (30 November 2001). The New York Times Almanac 2002. Psychology Press. p. 459. ISBN   978-1-57958-348-4 . Retrieved 29 November 2010.
  4. World Wildlife Fund, 2008.
  5. O. G. Austvik, 2006.
  6. 1 2 Mooney, Chris (2018-06-26). "A huge stretch of the Arctic Ocean is rapidly turning into the Atlantic. That's not a good sign". Washington Post. ISSN   0190-8286 . Retrieved 2018-06-27.
  7. 1 2 Bailey, Hannah; Hubbard, Alun; Klen, Eric S.; Mustonen, Kaisa-Riikka; Akers, Pete D.; Marttila, Hannu; Welker, Jeffrey M. (2021-04-01). "Arctic sea-ice loss fuels extreme European snowfall". Nature Geoscience .
  8. J. Zeeberg, 2001.
  9. "Limits of Oceans and Seas, 3rd edition" (PDF). International Hydrographic Organization. 1953. Archived from the original (PDF) on 8 October 2011. Retrieved 28 December 2020.
  10. 1 2 3 4 5 Doré, A.G. (Sep 1995). "Barents Sea Geology, Petroleum Resources and Commercial Potential" (PDF). 48 (3). Arctic Institute of North America.Cite journal requires |journal= (help)
  11. Doré, A.G. (March 1996). "Impact of Glaciations on Basin Evolution: Data and Models from the Norwegian Margin and Adjacent Areas". 12 (1–4). Global and Planetary Change.Cite journal requires |journal= (help)
  12. Sea ice modeling in the Barents Sea during SIZEX 89 (Haugan, P.M., Johannessen, O.M. and Sandven, S., IGARSS´90 symposium, Washington D.C., 1990)
  13. Corkeron, Peter J. (April 23, 2009). "Marine mammals' influence on ecosystem processes affecting fisheries in the Barents Sea is trivial". Biology Letters. The Royal Society. 5 (2): 204–206. doi:10.1098/rsbl.2008.0628. ISSN   1744-957X. PMC   2665811 . PMID   19126534.
  14. C.M. Hogan, 2008
  15. Administrator, journallive (2006-08-15). "Warming to cap art". journallive. Archived from the original on 2017-10-05. Retrieved 2017-10-05.
  16. AS, TV 2. "Tor (36) nådde Svalbard på supertid, this is the link to the news summary, full video news was broadcast on 29 July in the News section, available on youtube". TV 2 (in Norwegian). Retrieved 2017-10-05.
  17. Amos, Howard (7 July 2011). "Arctic Treaty With Norway Opens Fields". The Moscow Times . Retrieved 2 July 2014.
  18. "Snøhvit Gas Field, Norway". Offshore Technology. Retrieved 2 July 2014.
  19. "Snøhvit". Statoil Website. Retrieved 2 July 2014.
  20. "Norway Makes Its Second Huge Oil Discovery In The Past Year". Associated Press. January 9, 2012. a well drilled in the Havis prospect in the Barents Sea proved both oil and gas at an estimated volume of between 200 million and 300 million barrels of recoverable oil equivalents.
  21. "The Barents Sea Cod – the last of the large cod stocks". World Wildlife Foundation . Retrieved 4 July 2014.
  22. "The History of the Joint Norwegian-Russian Fisheries Commission".
  23. 1 2 3 4 Svenson J (May 2012). "MabCent: Arctic marine bioprospecting in Norway". Phytochemistry Reviews. 12 (3): 567–578. doi:10.1007/s11101-012-9239-3. PMC   3777186 . PMID   24078803.
  24. 1 2 Nasjonal Strategi 2009. "Marin bioprospektering – en kilde til ny og bærekraftig verdiskaping" (PDF).

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