Browsing Brage IMR by Author "Slagstad, Dag"

Now showing items 1-9 of 9

    • Borealization of the Arctic Ocean in response to anomalous advection from sub-Arctic seas. 

      Polyakov, Igor V.; Alkire, Mattew; Bluhm, Bodil; Brown, Kristina; Carmack, Eddy C.; Chierici, Melissa; Danielson, Seth L.; Ellingsen, Ingrid H.; Ershova, Elizaveta; Gardfeldt, Katrin; Ingvaldsen, Randi Brunvær; Pnyushkov, Andrey V.; Slagstad, Dag; Wassmann, Paul (Peer reviewed; Journal article, 2020)
      An important yet still not well documented aspect of recent changes in the Arctic Ocean is associated with the advection of anomalous sub-Arctic Atlantic- and Pacific-origin waters and biota into the polar basins, a process ...

    • Density driven currents in the Barents Sea calculated by a numerical model 

      Slagstad, Dag; Støle-Hansen, Kjell; Loeng, Harald (ICES CM Documents;1989/C:20, Working paper, 1989)
      A baroclinic, 3-D model is described. It is adapted to a Barents Sea situation in order to simulate the currents in this area. The model is of a so-called level type which contains fixed, but permeable levels. It also ...

    • Effects of mortality changes on biomass and production in Calanus spp. populations 

      Skarðhamar, Jofrid; Reigstad, Marit; Carroll, JoLynn; Eiane, Ketil; Riser, Christian Wexels; Slagstad, Dag (Journal article; Peer reviewed, 2011-04-28)
      Calanus species are the main link between primary producers and higher trophic-level organisms in the Barents Sea. The natural mortality rate is an essential parameter for determining the standing stock of Calanus, but it ...

    • Ocean temperature oscillations enable reappearance of blue mussels Mytilus edulis in Svalbard after a 1000 year absence 

      Berge, Jørgen; Johnsen, Geir; Nilsen, Frank; Gulliksen, Bjørn; Slagstad, Dag (Journal article; Peer reviewed, 2005-11-21)
      We report the first observations of settled blue mussels Mytilus edulis L. in the high Arctic archipelago of Svalbard for the first time since the Viking Age. A scattered population was discovered at a single site at the ...

    • Primary production in relation to climatic changes in the Barents Sea 

      Rey, Francisco; Skjoldal, Hein Rune; Slagstad, Dag (PINRO-IMR Symposium, Conference object, 1987)
      The Barents Sea is charaeterized by extreme environmental conditions that have considerable infiuence on the biological development, especially during spring. Based on physical and biological observations obtained during ...

    • Regional dynamics of Calanus in the Norwegian Sea in response to ocean climate in 1997 

      Slagstad, Dag; Tande, Kurt; Melle, Webjørn; Ellertsen, Bjørnar; Carlotti, Francois (ICES CM Documents;2000/M:20, Working paper, 2000)
      A coupled 3D hydrodynamic and ecological model has been set up for the Norwegian Sea (i.e. SINMOD). The hydrodynamic model uses the z-coordinates in the vertical direction. The horizontal grid point distance is 6.67 km ...

    • Simulering av strømfelt, hydrografi, isdekke og primærprodukjson i det nordlige Barentshav 

      Slagstad, Dag; Stokke, Svein (Fisken og havet, Research report, 1994)
      This report describes a numerical 3-dimensional model that simulates, current field, ice distribution, hydrography and primary production. The model uses input data from norwegian meteorological stations and data from ...

    • Valuing blue carbon changes in the Arctic ocean 

      Armstrong, Claire W.; Foley, Naomi; Slagstad, Dag; Chierici, Melissa; Ellingsen, Ingrid H.; Reigstad, Marit (Peer reviewed; Journal article, 2019)
      The ocean capacity to store carbon is crucial, and currently absorbs about 25% CO2 supply to the atmosphere. The ability to store carbon has an economic value, but such estimates are not common for ocean environments, and ...

    • Økologiske undersøkelser nær iskanten i Barentshavet somrene 1979 og 1980 

      Ellertsen, Bjørnar; Hassel, Arne; Loeng, Harald; Rey, Francisco; Tjelmeland, Sigurd; Slagstad, Dag (Fisken og havet, Research report, 1982)
      During the summers of l979 and 1980, ecological investigations were carried out in the marginal ice zone in the Barents Sea. In the investigation an attempt is made to follow the development of the production processes, ...