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Deprecated: Function split() is deprecated in /home/barentsp/public_html/barentsportal09/plugins/system/jfrouter.php on line 456 Overview of the ecosystemBarentsPortal - a comprehensive description and evaluation of the environmental status of the Barents Sea ecosystem, including human activities and impact in the area, using relevant scientific and monitoring knowledge from Norwegian, Russian and other sources. The status comprise climate change, fishery activities, marine pollution, oil and gas activity, shipping, marine resource management, and environmental management. Further more, a detail and updated description and analyse of marin biology and ecology, including red list species, biodiversity, end the main species groups as whales, seals, polar bear, whalerus, phytoplankton and zooplankton as copepods as calanus species, bottom communities, marine bacteria, fish fauna as the key species capelin, northeast atlantic cod and atlantic herring. In addition there are a detail description of environmental factors as sea ice, hydrographical factors as temperature and salinity and current mainly drives by the Gulf Stream or north atlantic drift. The report is sponsored by the russian-norwegian commission on environmental protection and the norwegian-russian fishery commission, ministry of environment and Ministry of natural resources and ecology in the russian federation.
Wed, 22 May 2013 00:42:40 +0000Joomla! 1.5 - Open Source Content Managementen-gbOverview of the ecosystem
http://www.barentsportal.com/barentsportal09/index.php?option=com_content&view=article&id=185%3Aoverview-of-the-ecosystem&catid=58%3Aoverview-of-the-ecosystem&Itemid=182&lang=enThe Barents Sea is a sub-Arctic ecosystem located between 70 and 80ºN. It connects with the Norwegian Sea to the west and the Arctic Ocean to the north. The average depth is 230 m and the maximum depth is approximately 500 m at the western entrance. The general pattern of circulation (Figure 2.1.1) is strongly influenced by this topography, and is characterised by inflow of relatively warm Atlantic water, and coastal water from the west. This current divides into two branches: 1) a southern branch that flows parallel to the coast and eastwards towards Novaya Zemlya; and 2) a northern branch that flows into the Hopen Trench. The Coastal Water has more fresh-water runoff and a lower salinity than the Atlantic water; it also has a stronger seasonal temperature signal. In the northern region of the Barents Sea, fresh and cold Arctic waters flow from northeast to southwest. Atlantic and Arctic water masses are separated by the Polar Front, which is characterised by strong gradients in both temperature and salinity. There is large inter-annual variability in ocean climate related to variable strength of the Atlantic water inflow, and exchange of cold Arctic water. Thus, seasonal variations in hydrographic conditions can be quite large. ]]>email@example.com (Å. Høines (IMR), A. Filin (PINRO) and J.E. Stiansen (IMR))Overview of the ecosystemThu, 03 Dec 2009 08:28:53 +0000