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Economic impacts on key Barents Sea fisheries arising from changes in the strength of the Atlantic thermohaline circulation

  • P. Michael Link
  • Richard S.J. Tol

    ()

    (Economic and Social Research Institute, Dublin)

A bioeconomic model of key fisheries of the Barents Sea is run with scenarios generated by an earth system model of intermediate complexity to assess how the Barents Sea fisheries of cod (Gadus morhua) and capelin (Mallotus villosus) are affected by changes in the Atlantic thermohaline circulation arising from anthropogenic climate change. Changes in hydrographic conditions have an impact on recruitment success and survival rates which constitute a lasting effect on the stocks. The economic development of the fisheries is assessed for the 21st century, considering both adaptive and profit-maximizing harvesting strategies. Results show that a substantial weakening of the THC leads to impaired cod stock development, causing the associated fishery to become unprofitable in the long run. Simultaneous improvements in capelin stock development help the capelin fishery, but are insufficient to offset the losses incurred by the cod fishery. A comparison of harvest strategies reveals that in times of high variability in stock development, profit maximization leads to more stable economic results of these fisheries than the adaptive fishing strategy.

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File URL: http://www.fnu.zmaw.de/fileadmin/fnu-files/publication/working-papers/Link_Working_Paper_FNU-104.pdf
File Function: First version, 2006
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Paper provided by Research unit Sustainability and Global Change, Hamburg University in its series Working Papers with number FNU-104.

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Length: 23 pages
Date of creation: May 2006
Date of revision: May 2006
Handle: RePEc:sgc:wpaper:104
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Web page: http://www.fnu.zmaw.de/

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  1. Jacqueline M. Hamilton, 2002. "Climate and the Destination Choice of German Tourists," Working Papers FNU-15, Research unit Sustainability and Global Change, Hamburg University, revised Aug 2003.
  2. Robert J. Nicholls & Richard S.J. Tol & Athanasios T. Vafeidis, 2005. "Global Estimates Of The Impact Of A Collapse Of The West Antarctic Ice Sheet: An Application Of Fund," Working Papers FNU-78, Research unit Sustainability and Global Change, Hamburg University, revised Jul 2005.
  3. Jacqueline M. Hamilton, 2005. "Coastal landscape and the hedonic price of accommodation," Working Papers FNU-91, Research unit Sustainability and Global Change, Hamburg University, revised Sep 2005.
  4. Maria Berrittella & Katrin Rehdanz & Arjen Y. Hoekstra & Roberto Roson & Richard S.J. Tol, 2006. "The Economic Impact Of Restricted Water Supply: A Computable General Equilibrium Analysis," Working Papers FNU-93, Research unit Sustainability and Global Change, Hamburg University, revised Jul 2006.
  5. Brian S. Fisher & Guy Jakeman & Hom M. Pant & Malte Schwoon & Richard S.J. Tol, 2005. "Chimp: A Simple Population Model For Use In Integrated Assessment Of Global Environmental Change," Working Papers FNU-69, Research unit Sustainability and Global Change, Hamburg University, revised Jul 2005.
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  1. Socio-economics of Fisheries and Aquaculture

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