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Biotic components

Infectious organisms - Parasitofauna Paralithodes camtshaticus of the Barents Sea

Thursday, 03 December 2009 09:29 S. Marasaev (SMG), A. B. Karasev (PINRO), V.V. Kuklin (MMBI), and M. Tryland (NVH)

Presently, king crab (Paralithodes camtshaticus) has formed an independent population in the Barents Sea after the introduction of the species from the Pacific Ocean. Research conducted on various organs and tissues of the crab has shown a presence of the parasites listed in Table 2.4.6.

Last Updated ( Friday, 22 January 2010 11:48 )

Infectious organisms - Bacteria and viruses

Thursday, 03 December 2009 09:30 S. Marasaev (SMG), A. B. Karasev (PINRO), V.V. Kuklin (MMBI), and M. Tryland (NVH)

Bacteria and viruses are widespread pathogens in the Barents Sea. Bacteria of the genus Brucella are widely distributed among marine mammals, including the polar bear. A recent investigation revealed high prevalences of anti-Brucella antibodies (35%) and Brucella-bacteria /Brucella pinnipedialis; 38%) in hooded seals. Phocine distemper virus (PDV) can be highly pathogenic in seals. No such disease...

Last Updated ( Friday, 22 January 2010 11:48 )

Rare and threatened species

Thursday, 03 December 2009 09:32 M. Tsyganova (VNIIPriroda), M. Gavrilo (AARI),I. Salvesen (ADB), S. Belikov (VNIIPriroda), J. Gjøsæter (IMR), J. A. Kålås (ADB), H. Strøm (NPI)

In this chapter we handle species of particular conservation concern due to their population status. These are the species present in the Barents Sea area and also listed on the Global Red List (IUCN, 2008), the Russian Red Data book (Danilov-Danilyan et al., 2001) and/or the Norwegian Red List (Kålås et al., 2006). In this report the groups of species included are restricted to mammals, birds and...

Last Updated ( Wednesday, 06 January 2010 09:03 )

Introduced species

Thursday, 03 December 2009 09:34 M. Tsyganova (VNIIPriroda), B.Berenboim (PINRO), I. Salvesen (ADB), J. Gjøsæter (IMR), A. Jelmert (IMR), J. A. Kålås (ADB)

Invasion of alien species – spread of the representatives of various groups of living organisms beyond their primary habitats - is global in nature. Invasive species often act as biological pollutants, and may threaten an ecological security of the region. Their introduction and further spread often leads to the undesirable environmental, economic and social consequences.

Bioinvasion includes all c...

Last Updated ( Wednesday, 06 January 2010 08:48 )

Introduced species - Red king crab (Paralithodes camtschaticus)

Thursday, 03 December 2009 09:35 M. Tsyganova (VNIIPriroda), B.Berenboim (PINRO), I. Salvesen (ADB), J. Gjøsæter (IMR), A. Jelmert (IMR), J. A. Kålås (ADB)

This species was deliberately introduced from the Far East to the Kola Bay and the adjacent waters of the Barents Sea by Russian scientists to enhance the fishing resources, in the 1960s. During the 1980s and 1990s they expanded to new areas and the crab reached the Norwegian shelf, and occupied practically all large fjords in the eastern Finnmark. Therefore, in the early 1990s, the crab caused he...