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• 1. [Article] Individual Habitat Quotas for Fisheries

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Individual Habitat Quotas for Fisheries Author: Holland, Daniel S., Schnier, Kurt E. Research Paper Title: Individual Habitat Quotas for Fisheries Author: Holland, Daniel S., Schnier, Kurt E. Research Paper Close

• 2. [Article] A Bioeconomic Model of Fishery-Habitat Impacts

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A Bioeconomic Model of Fishery-Habitat Impacts Author: Kahui, Viktoria, Armstrong, Claire Abstract only. Title: A Bioeconomic Model of Fishery-Habitat Impacts Author: Kahui, Viktoria, Armstrong, Claire Abstract only. Close

• 3. [Article] Habitat-destructive fishing practices

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Habitat-destructive fishing practices Author: Mikkelsen, Eirik Abstract only. Title: Habitat-destructive fishing practices Author: Mikkelsen, Eirik Abstract only. Close

• 4. [Article] Incorporating Habitat Dynamics into Bioeconomic Model of Fishery. Application to Artificial Reefs

  In this paper the emphasis is put on an important aspect of renewable resource use that was disregarded until now. It is the evolution of environmental carrying capacity which is traditionally interpreted ...

  Citation × Citation Citation Abstract Copy Title: Incorporating Habitat Dynamics into Bioeconomic Model of Fishery. Application to Artificial Reefs Author: Cartigny, Pierre, Ami, Dominique, Udumyan, Narine In this paper the emphasis is put on an important aspect of renewable resource use that was disregarded until now. It is the evolution of environmental carrying capacity which is traditionally interpreted as a maximal population level that can be supported by the environment (or by habitats of which it consists). Hence we adapt the Gordon-Schaefer model with constant carrying capacity by incorporating time-dependent carrying capacity that determines the state of habitats. They are subject to some biological processes (habitat rehabilitation) as well as to human aggressions (in particular habitat degradation due to fishing). Based on the developed model, we reassess the recommendations considered as a benchmark for resource managers until recently. Under simple hypotheses on the form of habitat (carrying capacity) dynamics, the current study has shown the importance of the latter for the design of management tools. When dynamic patterns of habitats are not taken into account, fishery recommendations based on Gordon-Schaefer model can be aberrant and lead to the collapse of the fishery. The presented model allows not only to enrich the design of management tools but also to assess the performance of artificial reefs, a promising ecosystem-based tool widely used in some coastal areas. The economic benefits of artificial reefs are still not well studied and represent a challenge to take up. Since artificial reefs are conceived as replacement for natural habitats, they assume the same role as these latter. Therefore the structure of our model seems appropriate to evaluate this particular management tool. Title: Incorporating Habitat Dynamics into Bioeconomic Model of Fishery. Application to Artificial Reefs Author: Cartigny, Pierre, Ami, Dominique, Udumyan, Narine In this paper the emphasis is put on an important aspect of renewable resource use that was disregarded until now. It is the evolution of environmental carrying capacity which is traditionally interpreted as a maximal population level that can be supported by the environment (or by habitats of which it consists). Hence we adapt the Gordon-Schaefer model with constant carrying capacity by incorporating time-dependent carrying capacity that determines the state of habitats. They are subject to some biological processes (habitat rehabilitation) as well as to human aggressions (in particular habitat degradation due to fishing). Based on the developed model, we reassess the recommendations considered as a benchmark for resource managers until recently. Under simple hypotheses on the form of habitat (carrying capacity) dynamics, the current study has shown the importance of the latter for the design of management tools. When dynamic patterns of habitats are not taken into account, fishery recommendations based on Gordon-Schaefer model can be aberrant and lead to the collapse of the fishery. The presented model allows not only to enrich the design of management tools but also to assess the performance of artificial reefs, a promising ecosystem-based tool widely used in some coastal areas. The economic benefits of artificial reefs are still not well studied and represent a challenge to take up. Since artificial reefs are conceived as replacement for natural habitats, they assume the same role as these latter. Therefore the structure of our model seems appropriate to evaluate this particular management tool. Close

• 5. [Article] Fishing induced environmental change and the value of biodiversity in a multi-species fishery

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Fishing induced environmental change and the value of biodiversity in a multi-species fishery Author: Akpalu, Wisdom Abstract only. Title: Fishing induced environmental change and the value of biodiversity in a multi-species fishery Author: Akpalu, Wisdom Abstract only. Close

• 6. [Article] Fish, Floods, and Farmers: The Joint Production of Ecosystem Services on a Working Landscape

  presentation

  Citation × Citation Citation Abstract Copy Title: Fish, Floods, and Farmers: The Joint Production of Ecosystem Services on a Working Landscape Author: Garnache, Cloe presentation Title: Fish, Floods, and Farmers: The Joint Production of Ecosystem Services on a Working Landscape Author: Garnache, Cloe presentation Close

• 7. [Article] A Bioeconomic Model of Partial Closures and Habitat Effects - The Case of a Migratory Fish Species

  Research Paper

  Citation × Citation Citation Abstract Copy Title: A Bioeconomic Model of Partial Closures and Habitat Effects - The Case of a Migratory Fish Species Author: Armstrong, Claire W., Reithe, Siv, Armstrong, Richard J. Research Paper Title: A Bioeconomic Model of Partial Closures and Habitat Effects - The Case of a Migratory Fish Species Author: Armstrong, Claire W., Reithe, Siv, Armstrong, Richard J. Research Paper Close

• 8. [Article] Cold Water Coral - Fisheries Interactions: Bioeconomic modelling comparing Norway & Iceland's redfish fisheries

  Abstract Only

  Citation × Citation Citation Abstract Copy Title: Cold Water Coral - Fisheries Interactions: Bioeconomic modelling comparing Norway & Iceland's redfish fisheries Author: Foley, Naomi, Armstong, Claire Abstract Only Title: Cold Water Coral - Fisheries Interactions: Bioeconomic modelling comparing Norway & Iceland's redfish fisheries Author: Foley, Naomi, Armstong, Claire Abstract Only Close

• 9. [Article] Fishing in a Shallow Lake: A Case for Effort Controls?

  In many situation, fishing activity adversely impacts the state of the marine ecosystem, impacts which feed back to affect fish stocks. Some ecosystems appear to have multiple equilibria and exhibit hysteresis, ...

  Citation × Citation Citation Abstract Copy Title: Fishing in a Shallow Lake: A Case for Effort Controls? Author: Janmaat, John, Ruijs, Arjan In many situation, fishing activity adversely impacts the state of the marine ecosystem, impacts which feed back to affect fish stocks. Some ecosystems appear to have multiple equilibria and exhibit hysteresis, whereby they can become stuck in low productivity states. We show how adding ecosystem dynamics to a classic fisheries model can introduce hysteresis impacts, impacts that affect both the evolution of the fish stock and the fishery harvesting it. We demonstrate that harvest and effort taxes are not equivalent instruments for controlling this externality. We also show that if the fishery is sufficiently degraded, it may not be optimal to move the system back to a healthy environment. Title: Fishing in a Shallow Lake: A Case for Effort Controls? Author: Janmaat, John, Ruijs, Arjan In many situation, fishing activity adversely impacts the state of the marine ecosystem, impacts which feed back to affect fish stocks. Some ecosystems appear to have multiple equilibria and exhibit hysteresis, whereby they can become stuck in low productivity states. We show how adding ecosystem dynamics to a classic fisheries model can introduce hysteresis impacts, impacts that affect both the evolution of the fish stock and the fishery harvesting it. We demonstrate that harvest and effort taxes are not equivalent instruments for controlling this externality. We also show that if the fishery is sufficiently degraded, it may not be optimal to move the system back to a healthy environment. Close

• 10. [Article] The Economics of Conservation Targeting Strategies

  This is an abbreviated version of a paper published in the American Journal of Agricultural Economics, Vol. 82 #2, pages 400-413.

  Citation × Citation Citation Abstract Copy Title: The Economics of Conservation Targeting Strategies Author: Boggess, William G., Wu, JunJie, Adams, Richard M. Year: 2001 This is an abbreviated version of a paper published in the American Journal of Agricultural Economics, Vol. 82 #2, pages 400-413. Title: The Economics of Conservation Targeting Strategies Author: Boggess, William G., Wu, JunJie, Adams, Richard M. Year: 2001 This is an abbreviated version of a paper published in the American Journal of Agricultural Economics, Vol. 82 #2, pages 400-413. Close