Optimal Harvesting of the Norwegian Spring-Spawning Herring: Variable Versus Fixed Harvesting Strategies |
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Authors: | Mitri Kitti Marko Lindroos Veijo Kaitala |
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Institution: | 1. Systems Analysis Laboratory, Helsinki University of Technology, PO Box 1100, FIN-02015, HUT, Finland 2. Department of Economics, Helsinki School of Economics, Runeberginkatu 22-24, PO Box 1210, 00101, Helsinki, Finland 3. Department of Biological and Environmental Science, University of Jyv?skyl?, PO Box 35, FIN-40351, Jyv?skyl?, Finland
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Abstract: | In this paper we study optimal harvesting of the Norwegian spring-spawning herring stock. The biological model is described
by a discrete time age-structured model. The optimal harvesting patterns are studied numerically and the results show that
when using a linear cost function and constant price in the optimisation model, the optimal harvesting pattern is pulse fishing.
However, optimal constant fishing effort gives only slightly lower profit. Moreover, when price is made responsive to harvest
the optimal harvesting strategy is substantially smoothed.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | dynamic optimisation Norwegian spring-spawning herring pulse fishing |
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