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Larval Dispersal has Little Effect on Benefits from Spatially Explicit Property Rights

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Abstract
  • Territorial Use Rights in Fisheries (TURFs) are increasingly used as a tool to promote sustainable and profitable fisheries. Their success depends on shifting incentives to longer time horizons by securing the future benefits of fisheries reforms for TURF owners. One challenge to this security is the spillover of fish across the border of the TURF. If the size of the TURF is small relative to the scale of fish movement, most benefits of actions go to neighboring fishing areas, and the motivation for reforms by TURF owners is reduced or eliminated. Past studies of TURFs support this conclusion. These theoretical and empirical analyses, however, have focused on the effects of adult fish movement. However, in many TURF systems, larval dispersal greatly exceeds TURF size, yet they can still be quite successful. We propose that including the effect of the market conditions (fishermen discount rates and price premiums for size) and the targeted species' life history into TURF models could greatly increase our understanding of why existent TURF systems seem unaffected by high levels of larval spillover. In this paper we explore this hypothesis by building age-structured models to assess how fishermen behavior is likely to change when including these drivers into current models. Our results show that maximum economic gains can be achieved in systems with high levels of larval spillover if 1) access rights over the adults are clearly defined where fishing activities are performed and 2) there's a price premium for larger fish.
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Citation
  • NAAFE Forum 2017 Proceedings, March 22-24, 2017. Compiled by Stefani J. Evers and Ann L. Shriver. North American Association of Fisheries Economists (NAAFE), Corvallis, 2017.
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Urheberrechts-Erklärung
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Peer Reviewed
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ISBN
  • 097634324X

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