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• 1. [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

• 2. [Article] Evaluation of Management Strategies in Ningaloo Marine Park, Western Australia

  The spatial, multi-species nature of coral reef fisheries makes them notoriously difficult to manage. We have developed a simulation modeling approach to examine the effect of management options on the recreationally ...

  Citation × Citation Citation Abstract Copy Title: Evaluation of Management Strategies in Ningaloo Marine Park, Western Australia Author: Little, Rich, Fulton, Beth, Thébaud, Olivier The spatial, multi-species nature of coral reef fisheries makes them notoriously difficult to manage. We have developed a simulation modeling approach to examine the effect of management options on the recreationally important tourist destination of Ningaloo Reef in Western Australia where a recreational fishery targets Spangled Emperor (Lethrinus nebulosus). The approach brings a broad range of physical, biological and socio-economic information and process understanding into an integrated framework. It also provides an effective interface with management. Model results show the effects of historical fishing mortality, localized depletion of Spangled Emperor, and the potential effect of the sanctuary zones that are closed to fishing. They also show expected recreational catches and catch rates under different projected management strategies and future scenarios regarding the evolution of the fishery. Results from the model will provide a means to assess, test and ultimately improve the effectiveness of management and monitoring strategies in the region. Title: Evaluation of Management Strategies in Ningaloo Marine Park, Western Australia Author: Little, Rich, Fulton, Beth, Thébaud, Olivier The spatial, multi-species nature of coral reef fisheries makes them notoriously difficult to manage. We have developed a simulation modeling approach to examine the effect of management options on the recreationally important tourist destination of Ningaloo Reef in Western Australia where a recreational fishery targets Spangled Emperor (Lethrinus nebulosus). The approach brings a broad range of physical, biological and socio-economic information and process understanding into an integrated framework. It also provides an effective interface with management. Model results show the effects of historical fishing mortality, localized depletion of Spangled Emperor, and the potential effect of the sanctuary zones that are closed to fishing. They also show expected recreational catches and catch rates under different projected management strategies and future scenarios regarding the evolution of the fishery. Results from the model will provide a means to assess, test and ultimately improve the effectiveness of management and monitoring strategies in the region. Close

• 3. [Article] Global Economic and Environmental Changes and Fisheries Viability: the Case of the French Guyana Shrimp Fishery

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Global Economic and Environmental Changes and Fisheries Viability: the Case of the French Guyana Shrimp Fishery Author: Thébaud, Olivier, Chaboud, Christian, Blanchard, Fabian Abstract only. Title: Global Economic and Environmental Changes and Fisheries Viability: the Case of the French Guyana Shrimp Fishery Author: Thébaud, Olivier, Chaboud, Christian, Blanchard, Fabian Abstract only. Close