Browsing Brage IMR by Author "Kooij, Jeroen van der"

Now showing items 1-6 of 6

    • Differences between near bottom biomass spatial structure observed in the Irish Sea, the North Sea and the Barents Sea in recent years 

      Mireille, Bouleau; Nicolas, Bez; Hjellvik, Vidar; Godø, Olav Rune; Reid, David; Beare, Douglas; Greig, Tony; Armstrong, Mike; Gerritsen, Hans D.; Mackinson, Steven; Neville, Suzanna; Kooij, Jeroen van der; Vérin, Yves; Massé, Jacques (ICES CM documents, Working paper, 2003)
      Based on acoustic data and trawl catches collected during bottom trawl surveys, we compare the spatial structure of the biomass available in the first meters above the bottom in three different regions, the Barents Sea ...

    • Observations of cod behaviour reveal insights into the function and properties of the swimbladder under pressure 

      Kooij, Jeroen van der; Righton, David; Michalsen, Kathrine; Thorsteinsson, Vilhjalmur; Svedäng, Henrik; Neat, Francis (ICES CM documents, Working paper, 2006)
      Atlantic cod (Gadus morhua L.) is a highly adaptive boreal species with a broad distribution through different ecosystems in the North Atlantic. Diet, environmental factors and population dynamics vary enormously ...

    • Positive relationships between bottom trawl and acoustic data 

      Beare, Douglas; Reid, David; Greig, Tony; Bez, Nicholas; Hjellvik, Vidar; Godø, Olav Rune; Bouleau, Mireille; Kooij, Jeroen van der; Neville, Suzanna; Mackinson, Steven (ICES CM documents, Working paper, 2004)
      Demersal fish stock biomass is usually estimated using commercial landings data, ‘tuned’ by various types of survey data, usually trawl. When collecting fish data by trawl it is only possible to take relatively small numbers ...

    • Thermal niche of Atlantic cod Gadus morhua: limits, tolerance and optima 

      Righton, David; Andersen, Ken Haste; Neat, Francis; Thorsteinsson, Vilhjalmur; Steingrund, P.; Svedäng, Henrik; Michalsen, Kathrine; Hinrichsen, Hans-Harald; Bendall, Victoria; Neuenfeldt, Stefan; Wright, Peter; Jonsson, Patrik; Huse, Geir; Kooij, Jeroen van der; Mosegaard, Henrik; Hüssy, Karin; Metcalfe, Julian D. (Journal article; Peer reviewed, 2010)
      Recent studies in the marine environment have suggested that the limited phenotypic plasticity of cold-adapted species such as Atlantic cod Gadus morhua L. will cause distributions to shift toward the poles in response to ...

    • Thermal niche of Atlantic cod Gadus morhua: limits, tolerance and optima 

      Righton, David; Andersen, Ken Haste; Neat, Francis; Thorsteinsson, Vilhjalmur; Steingrund, P.; Svedäng, Henrik; Michalsen, Kathrine; Hinrichsen, Hans-Harald; Bendall, Victoria; Neuenfeldt, Stefan; Wright, Peter; Jonsson, Patrik; Huse, Geir; Kooij, Jeroen van der; Mosegaard, Henrik; Hüssy, Karin; Metcalfe, Julian D. (Journal article; Peer reviewed, 2010)
      Recent studies in the marine environment have suggested that the limited phenotypic plasticity of cold-adapted species such as Atlantic cod Gadus morhua L. will cause distributions to shift toward the poles in response to ...

    • Using artificial neural networks to combine acoustic and trawl data in the Barents and North Seas 

      Neville, Suzanna; Hjellvik, Vidar; Mackinson, Steven; Kooij, Jeroen van der (ICES CM documents, Working paper, 2004)
      Groundfish have a wide and variable distribution making the use of trawling alone a highly inadequate sampling method. Trawl data provide species identification and numbers over a very small area and habitat type while ...