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• 11. [Article] Ecosystem-Wide Impacts of Alternative Bycatch Reduction Strategies: An Ecological-Economic Assessment of the Australian Southern and Eastern Scalefish and Shark Fishery

  A concern for the consequences of bycatch and discards in fisheries has led to the implementation of new policies and fisheries management plans aimed at their reduction in many fisheries around the world. ...

  Citation × Citation Citation Abstract Copy Title: Ecosystem-Wide Impacts of Alternative Bycatch Reduction Strategies: An Ecological-Economic Assessment of the Australian Southern and Eastern Scalefish and Shark Fishery Author: Kulmala, Soile, Fulton, Beth, Thébaud, Olivier, Hutton, Trevor, Pascoe, Sean A concern for the consequences of bycatch and discards in fisheries has led to the implementation of new policies and fisheries management plans aimed at their reduction in many fisheries around the world. Such plans have been developed for the Australian Commonwealth fisheries (the most recent bycatch action plan extends from 2009 to 2011 for this case study). These plans list a wide variety of species, including both commercial fish and non-commercial species, particularly those listed as threatened, endangered or protected. The paper presents an analysis of the potential economic and ecological impacts of alternative approaches to the implementation of these plans, with particular emphasis on the use of economic incentives. The analysis is centered on the Australian Commonwealth Southern and Eastern Scalefish and Shark Fishery, and is based on the Atlantis simulation model developed within CSIRO. Atlantis is a spatially explicit model with subcomponents that model the coupled physical transport-biogeochemical processes as elements of the ecosystem, as well as sub-models to include the fisheries, the annual assessments, and the implementation of management regulations and compliance. A feature of the Atlantis model is that it incorporates a fleet dynamics model that allows the main fleets to adjust their fishing behavior in response to incentives. Incentive-based bycatch management scenarios such as the use of deemed values within the existing trade-able quota scheme for over-quota landings, or the imposition of a tax on catches of threatened, endangered and protected species, are considered (as well as tradable bycatch quotas). The consequences of these scenarios are presented in terms of both ecological and economic impacts, with a focus on the ecosystem-wide implications of alternative regulations. Title: Ecosystem-Wide Impacts of Alternative Bycatch Reduction Strategies: An Ecological-Economic Assessment of the Australian Southern and Eastern Scalefish and Shark Fishery Author: Kulmala, Soile, Fulton, Beth, Thébaud, Olivier, Hutton, Trevor, Pascoe, Sean A concern for the consequences of bycatch and discards in fisheries has led to the implementation of new policies and fisheries management plans aimed at their reduction in many fisheries around the world. Such plans have been developed for the Australian Commonwealth fisheries (the most recent bycatch action plan extends from 2009 to 2011 for this case study). These plans list a wide variety of species, including both commercial fish and non-commercial species, particularly those listed as threatened, endangered or protected. The paper presents an analysis of the potential economic and ecological impacts of alternative approaches to the implementation of these plans, with particular emphasis on the use of economic incentives. The analysis is centered on the Australian Commonwealth Southern and Eastern Scalefish and Shark Fishery, and is based on the Atlantis simulation model developed within CSIRO. Atlantis is a spatially explicit model with subcomponents that model the coupled physical transport-biogeochemical processes as elements of the ecosystem, as well as sub-models to include the fisheries, the annual assessments, and the implementation of management regulations and compliance. A feature of the Atlantis model is that it incorporates a fleet dynamics model that allows the main fleets to adjust their fishing behavior in response to incentives. Incentive-based bycatch management scenarios such as the use of deemed values within the existing trade-able quota scheme for over-quota landings, or the imposition of a tax on catches of threatened, endangered and protected species, are considered (as well as tradable bycatch quotas). The consequences of these scenarios are presented in terms of both ecological and economic impacts, with a focus on the ecosystem-wide implications of alternative regulations. Close

• 12. [Article] Coastal Marine Protected Areas in Japan and their Institutional Characteristics

  A survey was conducted to create a comprehensive list of marine protected areas (MPAs) in Japan. There exist more than 1,000 fishery cooperatives in Japan, and many of them have established no-take zones ...

  Citation × Citation Citation Abstract Copy Title: Coastal Marine Protected Areas in Japan and their Institutional Characteristics Author: Yagi, Nobuyuki, Takada, Yukiko, Kurokura, Hisashi A survey was conducted to create a comprehensive list of marine protected areas (MPAs) in Japan. There exist more than 1,000 fishery cooperatives in Japan, and many of them have established no-take zones for many years. Such zones are usually not reported to the government and, therefore, the complete picture of the MPAs in Japan has been largely unknown until now. Information on such local MPAs was collected through various sources, and a list of more than 1,000 MPAs was produced. Many of them take the style of self-imposed voluntary regulations. Nonetheless, it was suggested that free-riders of the conservation activities were uncommon. This is because agreements are usually made to maximize the benefit of the group of fishers and each member of the group monitors the compliance status of other members. The government has provided territorial use right for fishers, and this could have helped maintain such a selfgovernance framework. Title: Coastal Marine Protected Areas in Japan and their Institutional Characteristics Author: Yagi, Nobuyuki, Takada, Yukiko, Kurokura, Hisashi A survey was conducted to create a comprehensive list of marine protected areas (MPAs) in Japan. There exist more than 1,000 fishery cooperatives in Japan, and many of them have established no-take zones for many years. Such zones are usually not reported to the government and, therefore, the complete picture of the MPAs in Japan has been largely unknown until now. Information on such local MPAs was collected through various sources, and a list of more than 1,000 MPAs was produced. Many of them take the style of self-imposed voluntary regulations. Nonetheless, it was suggested that free-riders of the conservation activities were uncommon. This is because agreements are usually made to maximize the benefit of the group of fishers and each member of the group monitors the compliance status of other members. The government has provided territorial use right for fishers, and this could have helped maintain such a selfgovernance framework. Close

• 13. [Article] Lessons From the Collapse of the Stock of Anchovy in the Bay of Biscay

  No poster available.

  Citation × Citation Citation Abstract Copy Title: Lessons From the Collapse of the Stock of Anchovy in the Bay of Biscay Author: Del Valle Erkiaga, Ikerne, Astorkiza, Kepa No poster available. Title: Lessons From the Collapse of the Stock of Anchovy in the Bay of Biscay Author: Del Valle Erkiaga, Ikerne, Astorkiza, Kepa No poster available. Close

• 14. [Article] Growth Overfishing

  Growth overfishing squanders large parts of the potential rents in fisheries. Many of today’s fisheries are characterized by a severely truncated age-distribution, which in addition may have irreversible ...

  Citation × Citation Citation Abstract Copy Title: Growth Overfishing Author: Diekert, Florian K. Growth overfishing squanders large parts of the potential rents in fisheries. Many of today’s fisheries are characterized by a severely truncated age-distribution, which in addition may have irreversible ecological consequences. Nevertheless, the implications of age-differentiated harvesting for management have received surprisingly little attention in the literature. In the present paper, optimal and non-cooperative exploitation paths for a generic age-distributed resource are derived. We show that, in the case of perfect selectivity, competition between two agents is sufficient to dissipate all rents. Akin to the classical Bertrand competition in prices, each agent has an incentive to target fish at a younger age. That is, the “race to fish” extends to the dimension of age. This observation is crucial also with respect to management: Individual quotas are not able to restore efficiency unless accompanied by gear regulation. Moreover, it turns out that quotas specified in terms of numbers are far superior to those specified in terms of volume or value. Title: Growth Overfishing Author: Diekert, Florian K. Growth overfishing squanders large parts of the potential rents in fisheries. Many of today’s fisheries are characterized by a severely truncated age-distribution, which in addition may have irreversible ecological consequences. Nevertheless, the implications of age-differentiated harvesting for management have received surprisingly little attention in the literature. In the present paper, optimal and non-cooperative exploitation paths for a generic age-distributed resource are derived. We show that, in the case of perfect selectivity, competition between two agents is sufficient to dissipate all rents. Akin to the classical Bertrand competition in prices, each agent has an incentive to target fish at a younger age. That is, the “race to fish” extends to the dimension of age. This observation is crucial also with respect to management: Individual quotas are not able to restore efficiency unless accompanied by gear regulation. Moreover, it turns out that quotas specified in terms of numbers are far superior to those specified in terms of volume or value. Close

• 15. [Article] Measuring Transaction Costs of Fisheries Co-Management

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Measuring Transaction Costs of Fisheries Co-Management Author: Pomeroy, Robert Abstract only. Title: Measuring Transaction Costs of Fisheries Co-Management Author: Pomeroy, Robert Abstract only. Close

• 16. [Article] The History of Development of Fisheries Management and Co- Management Studies in Vietnam

  No poster available.

  Citation × Citation Citation Abstract Copy Title: The History of Development of Fisheries Management and Co- Management Studies in Vietnam Author: Ha, Xuan Thong No poster available. Title: The History of Development of Fisheries Management and Co- Management Studies in Vietnam Author: Ha, Xuan Thong No poster available. Close

• 17. [Article] Avoiding bycatch in U.S. Sea Scallop closed areas fisheries

  Since 1999, the scallop fisheries have been granted access to closed areas on Georges Bank, and the access programs have been managed through individual vessel quotas for scallops, and a common-pool total ...

  Citation × Citation Citation Abstract Copy Title: Avoiding bycatch in U.S. Sea Scallop closed areas fisheries Author: DeCelles, Greg, Georgianna, Dan, Cadrin, Steven X., O’Keefe, Cate Since 1999, the scallop fisheries have been granted access to closed areas on Georges Bank, and the access programs have been managed through individual vessel quotas for scallops, and a common-pool total allowable catch (TAC) for yellowtail flounder bycatch. The scallop resource is neither overfished and nor is overfishing occurring, but the yellowtail flounder resource is both overfished and experiencing overfishing according to criteria of U.S. fishery regulations. The yellowtail flounder bycatch TAC has forced early closure of these fisheries in more than half of these access fisheries. We present two programs designed in cooperation with fishermen and permit holders to avoid yellowtail flounder bycatch in these access fisheries, one in Closed Area II (CAII) in 2009 and the other in the Nantucket Lightship Area (NLA) in 2010. For both programs, we mapped the areas of scallop and yellowtail flounder densities and sent the density maps to permit owners and captains. In the second program, we implemented a daily system of captains transmitting daily yellowtail flounder catch and number of tows by area, analyzing the data, and sending messages to captains indicating low, medium, and high scallop densities per pound of yellowtail flounder by area. The 2009 CAII fishery closed three weeks after opening yielding only 61% of the scallop TAC. About 1/3 of vessels participated in the 2010 NLA voluntary reporting program. Observer data indicates that the scallop TAC will be caught for the first time in any closed area access fishery for the first time in the 2010 NLA fishery. Title: Avoiding bycatch in U.S. Sea Scallop closed areas fisheries Author: DeCelles, Greg, Georgianna, Dan, Cadrin, Steven X., O’Keefe, Cate Since 1999, the scallop fisheries have been granted access to closed areas on Georges Bank, and the access programs have been managed through individual vessel quotas for scallops, and a common-pool total allowable catch (TAC) for yellowtail flounder bycatch. The scallop resource is neither overfished and nor is overfishing occurring, but the yellowtail flounder resource is both overfished and experiencing overfishing according to criteria of U.S. fishery regulations. The yellowtail flounder bycatch TAC has forced early closure of these fisheries in more than half of these access fisheries. We present two programs designed in cooperation with fishermen and permit holders to avoid yellowtail flounder bycatch in these access fisheries, one in Closed Area II (CAII) in 2009 and the other in the Nantucket Lightship Area (NLA) in 2010. For both programs, we mapped the areas of scallop and yellowtail flounder densities and sent the density maps to permit owners and captains. In the second program, we implemented a daily system of captains transmitting daily yellowtail flounder catch and number of tows by area, analyzing the data, and sending messages to captains indicating low, medium, and high scallop densities per pound of yellowtail flounder by area. The 2009 CAII fishery closed three weeks after opening yielding only 61% of the scallop TAC. About 1/3 of vessels participated in the 2010 NLA voluntary reporting program. Observer data indicates that the scallop TAC will be caught for the first time in any closed area access fishery for the first time in the 2010 NLA fishery. Close

• 18. [Article] Is Participation in Eu Policy-Making the Answer to Improve Policy Outcomes and Legitimacy? the Case of the Common Fisheries Policy

  No poster available.

  Citation × Citation Citation Abstract Copy Title: Is Participation in Eu Policy-Making the Answer to Improve Policy Outcomes and Legitimacy? the Case of the Common Fisheries Policy Author: Bodiguel, Clotilde, Raakjær, Jesper No poster available. Title: Is Participation in Eu Policy-Making the Answer to Improve Policy Outcomes and Legitimacy? the Case of the Common Fisheries Policy Author: Bodiguel, Clotilde, Raakjær, Jesper No poster available. Close

• 19. [Article] A Multivariate Poisson Approach to Estimating Target Catch and Bycatch Production

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A Multivariate Poisson Approach to Estimating Target Catch and Bycatch Production Author: Stohs, Stephen, Hilger, James Abstract only. Title: A Multivariate Poisson Approach to Estimating Target Catch and Bycatch Production Author: Stohs, Stephen, Hilger, James Abstract only. Close

• 20. [Article] The inner Workings of a Market for Transferable Fishing Rights in the Florida Spiny Lobster Fishery

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: The inner Workings of a Market for Transferable Fishing Rights in the Florida Spiny Lobster Fishery Author: MacLauchlin, Kari, Larkin, Sherry, Hill, Kalah Abstract only. Title: The inner Workings of a Market for Transferable Fishing Rights in the Florida Spiny Lobster Fishery Author: MacLauchlin, Kari, Larkin, Sherry, Hill, Kalah Abstract only. Close