Sustainable Yields for Ecosystems. A Mathematical Viability Approach Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/j96021680

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  • We define the notion of sustainable yields for ecosystem, with particular emphasis on long-run consistency between ecological and economic conflicting objectives. We provide a way to compute sustainable yields by means of a viability analysis of generic ecosystem models with harvesting. We apply our approach to a Lotka–Volterra model of the anchovy–hake couple in the Peruvian upwelling ecosystem between the years 1971 and 1981. Our analysis suggests that, during the anchovy collapse, the fishery could theoretically have been viably managed to produce catches above the expected levels while ensuring biological conservation. Control theory and viability theory methods have allowed us to introduce ecosystem considerations, such as multispecies and multiobjectives, and have contributed to integrate the long term dynamics, which is generally not considered in conventional fishery management.
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  • De Lara, Michel, Eladio Ocana, Ricardo Oliveros-Ramos and Jorge Tam. 2010. Sustainable Yields for Ecosystems. A Mathematical Viability Approach. 12 pages. In: Proceedings of the Fifteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 13-16, 2010, Montpellier, France: Economics of Fish Resources and Aquatic Ecosystems: Balancing Uses, Balancing Costs. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2010.
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  • description.provenance : Submitted by Amy Zhang (zhanga@onid.orst.edu) on 2013-06-17T18:28:58Z No. of bitstreams: 1 99.pdf: 279646 bytes, checksum: e335769fc17b8e18d2d18ed07e768672 (MD5)
  • description.provenance : Made available in DSpace on 2013-06-17T18:28:58Z (GMT). No. of bitstreams: 1 99.pdf: 279646 bytes, checksum: e335769fc17b8e18d2d18ed07e768672 (MD5) Previous issue date: 2010

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