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On the economic optimality of marine reserves when fishing damages habitat

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dc.contributor.advisor Michael G. Neubert. en_US Moeller, Holly Villacorta en_US
dc.contributor.other Woods Hole Oceanographic Institution. en_US 2010-08-26T17:32:30Z 2010-08-26T17:32:30Z 2010 en_US 2010 en_US
dc.description Thesis (S.M.)--Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Dept. of Biology; and the Woods Hole Oceanographic Institution), 2010. en_US
dc.description This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. en_US
dc.description Cataloged from student submitted PDF version of thesis. en_US
dc.description Includes bibliographical references (p. 125-127). en_US
dc.description.abstract In this thesis, I expand a spatially-explicit bioeconomic fishery model to include the negative effects of fishing effort on habitat quality. I consider two forms of effort driven habitat damage: First, fishing effort may directly increase individual mortality rates. Second, fishing effort may increase competition between individuals, thereby increasing density-dependent mortality rates. I then optimize effort distribution and fish stock density according to three management cases: (1) a sole owner, with jurisdiction over the entire fishery, who seeks to maximize profit by optimizing effort distribution; (2) a manager with limited control of effort and stock distributions, who seeks to maximize tax revenue by setting the length of a single, central reserve and a uniform tax per unit effort outside it; and (3) a manager with even more limited enforcement power, who can only set a tax per unit effort everywhere in the habitat space. I demonstrate that the economic efficiency of reserves depends upon model parameterization. In particular, reserves are most likely to increase profit (or tax revenue) when density-dependent fish mortality rates are affected. Interestingly, for large habitats that are sufficiently sensitive to density-dependent fish mortality effects, reserve networks (alternating fished and unshed areas of fixed periodicity) emerge. These results suggest that spatial forms of management which include marine reserves may enable signicant economic gains over nonspatial management strategies, in addition to the well-established conservation benefits provided by closed areas. en_US
dc.description.statementofresponsibility by Holly Villacorta Moeller. en_US
dc.format.extent 127 p. en_US
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.rights.uri en_US
dc.subject Joint Program in Biological Oceanography. en_US
dc.subject Biology. en_US
dc.subject Woods Hole Oceanographic Institution. en_US
dc.title On the economic optimality of marine reserves when fishing damages habitat en_US
dc.type Thesis en_US S.M. en_US
dc.contributor.department Joint Program in Biological Oceanography. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Biology. en_US
dc.contributor.department Woods Hole Oceanographic Institution. en_US
dc.identifier.oclc 654432982 en_US

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