Blar i forfatter "Bakke, Snorre"

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    • Life history and distribution of the edible crab (Cancer pagurus) in Norway - Effect of temperature and other environmental parameters at high latitudes 

      Bakke, Snorre (Doctoral thesis; Doktorgradsavhandling, 2019-06-25)
      The overall aim of this study has been to provide information on how environmental conditions in Norway might affect the life history and distribution of the edible crab (<i>Cancer pagurus</i>). The results show that the size at which female crabs reach physiological maturity vary little, and just randomly, across northern Europe, and among latitudinally separated areas within Norway. Analysis of ...

    • Size at maturity and molting probability across latitude in female Cancer pagurus 

      Bakke, Snorre; Larssen, Wenche Merete Emblem; Woll, Astrid Kari; Søvik, Guldborg; Gundersen, Agnes Christine; Hvingel, Carsten; Nilssen, Einar Magnus (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-11)
      Edible crab, <i>Cancer pagurus</i>, is a valuable North Atlantic fishery resource distributed from Morocco to northern Norway, covering a wide range of temperatures and other oceanographic variables. Knowledge on how local environmental conditions affect life history traits like maturity and growth in this species is however lacking, despite its importance in science-based management. Through analyses ...

    • Some observations of Cancer pagurus Linnaeus, 1758 (Decapoda, Brachyura) in deep water 

      Bakke, Snorre; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-01)
      Available species information pages and fact sheets define 100 to 200 m as the maximum depth of occurrence for <i>Cancer pagurus</i>. We here present some observations from video transects conducted in Sognesjøen, Norway, where numerous individuals of adult <i>C. pagurus</i> were observed at more than 400 m depth. Within the area investigated, 81 live crabs, 3 dead crabs/exuviae, and 32 areas with ...

    • Temperature selection and the final thermal preferendum of snow crab (Chionoecetes opilio, Decapoda) from the Barents Sea 

      Siikavuopio, Sten Ivar; Bakke, Snorre; Sæther, Bjørn-Steinar; Thesslund, Tina; Christiansen, Jørgen Schou (Journal article; Tidsskriftartikkel, 2019-08-09)
      The snow crab (<i>Chionoecetes opilio</i>) is an invasive species new to the Barents Sea that expands its geographic range by larval drift and adult migration. To evaluate the potential spreading of the species in the Barents Sea, we investigated temperature selection and the final thermal preferendum (FTP) of nine adult males in a free choice horizontal temperature gradient (~ 1.0–5.5 °C) for 24 ...

    • Thermal behaviour of edible crab Cancer pagurus Linnaeus, 1758 in coastal Norway 

      Bakke, Snorre; Siikavuopio, Sten Ivar; Christiansen, Jørgen Schou (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-26)
      Ocean warming drives latitudinal shifts in the distribution of ectotherm species. The rate and magnitude of such shifts are constrained by physiology and behavioural thermoregulation. Here, we investigated the thermal preference and lower critical temperature (CTmin) in female edible crab <i>Cancer pagurus</i>, a decapod crustacean with an ongoing northward dispersal along the Norwegian coast. The ...