This paper has shown that for heavily overfished stocks an MPA ma

This paper has shown that for heavily overfished stocks an MPA may be used to protect stocks and their habitats, to maximize harvest and to increase consumer and producer surplus. It may also cause the number of people employed in the fishery to increase, both as a consequence of increased effort and an increase in landed quantity for processing and distribution. For moderately overfished stocks the

benefits are not as apparent. These findings suggest that applying MPAs as management instruments may be suitable when taking the welfare approach to fisheries management, but not when taking the wealth approach. It is however not unlikely that even if Protein Tyrosine Kinase inhibitor a country initially may see the welfare approach as the most sensible, a transformation towards a wealth-based management system may be desirable in the long run as the general economy improves and good institutions and systems for redistribution of wealth are developed. In this case the use of MPAs may slow the process simply because more people may be involved in the fishery than would otherwise be the case if it was left in a pure open access state. However, as demonstrated in this paper, when there are other management Screening Library supplier objectives than resource rent maximization, MPAs have a role

to play to enhance resources and marine ecosystem services and to improve economic and social welfare. Comments from an anonymous reviewer is highly appreciated. “
“The question of opening Norway’s northern offshore areas for petroleum production has been a long and heated political debate. The values at stake are considerable. On one hand, petroleum production promises to underpin Norway’s economic wealth and people’s standard of living, both locally and nationally.

On the other hand, petroleum production, and in particular a major oil spill in the area off the Lofoten and Vesterålen islands and Senja (from now on referred to as the ‘Lofoten area’), is feared to have the potential to significantly disturb and alter vulnerable ecosystems and thereby damage fisheries and tourism in the area. Large areas in Norwegian waters have been opened to petroleum exploitation since the first oil field was discovered in DOK2 1971. Some areas still remain closed, as the northernmost area of the Barents Sea and the Lofoten area. The closure of these areas was a result of political processes where the importance of ecological factors such as biodiversity and biological production played a central role. The Lofoten area holds some of the worlds’ largest fish stocks [1] and bird colonies [2] and [3]. To ‘open’ an area means that the area is earmarked for potential oil exploitation and that petroleum companies can apply for production licenses.

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