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• 1. [Article] A Stochastic Viability Approach for Ecosystem-Based Management of Mixed Fisheries: The Case of The Bay of Biscay Demersal Fisheries

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A Stochastic Viability Approach for Ecosystem-Based Management of Mixed Fisheries: The Case of The Bay of Biscay Demersal Fisheries Author: Gourguet, Sophie, Doyen, Luc, Thébaud, Olivier, Macher, Claire, Guyader, Olivier Abstract only. Title: A Stochastic Viability Approach for Ecosystem-Based Management of Mixed Fisheries: The Case of The Bay of Biscay Demersal Fisheries Author: Gourguet, Sophie, Doyen, Luc, Thébaud, Olivier, Macher, Claire, Guyader, Olivier Abstract only. Close

• 2. [Article] Towards Behavioural Models of Fleet Dynamics

  Considerable attention has been applied to the development of models explaining how fish stocks change over space and time, from relatively simple stock-recruitment relationships to ecosystem models with ...

  Citation × Citation Citation Abstract Copy Title: Towards Behavioural Models of Fleet Dynamics Author: Hamon, Katell G., Kulmala, Soile, Thébaud, Olivier, Van Putten, Ingrid, Hutton, Trevor, Dowling, Natalie, Pascoe, Sean Considerable attention has been applied to the development of models explaining how fish stocks change over space and time, from relatively simple stock-recruitment relationships to ecosystem models with a complex food web structure. However, in many case studies fishing effort is assumed to be exogenous and even in dynamic models pre-determined by external factors such as management. An increasing number of operational bio-economic models for the marine environment are including a fleet dynamics component, recognising that fishers respond to changing environmental and economic conditions. These models are based on different assumptions about behaviour. In this review, we examine models of fisher behaviour that are empirically or theoretically developed and tested. In particular, we focus on the range of different economic and social drivers and their relevance to different types of behaviour. We find that economic factors are a dominant driver included in many types of short term behavioural models, although we acknowledge and find that other social factors play a significant role in some types of behaviour. The link between management and economic impacts is reasonably well established, and most bioeconomic models are able to incorporate these feedback systems. Incorporating these other social-dependent behaviours into bioeconomic models, however, is likely to remain a challenge unless links between management and changes in the social drivers are developed. Title: Towards Behavioural Models of Fleet Dynamics Author: Hamon, Katell G., Kulmala, Soile, Thébaud, Olivier, Van Putten, Ingrid, Hutton, Trevor, Dowling, Natalie, Pascoe, Sean Considerable attention has been applied to the development of models explaining how fish stocks change over space and time, from relatively simple stock-recruitment relationships to ecosystem models with a complex food web structure. However, in many case studies fishing effort is assumed to be exogenous and even in dynamic models pre-determined by external factors such as management. An increasing number of operational bio-economic models for the marine environment are including a fleet dynamics component, recognising that fishers respond to changing environmental and economic conditions. These models are based on different assumptions about behaviour. In this review, we examine models of fisher behaviour that are empirically or theoretically developed and tested. In particular, we focus on the range of different economic and social drivers and their relevance to different types of behaviour. We find that economic factors are a dominant driver included in many types of short term behavioural models, although we acknowledge and find that other social factors play a significant role in some types of behaviour. The link between management and economic impacts is reasonably well established, and most bioeconomic models are able to incorporate these feedback systems. Incorporating these other social-dependent behaviours into bioeconomic models, however, is likely to remain a challenge unless links between management and changes in the social drivers are developed. Close

• 3. [Article] A Model of Fishing Through Fish Communities

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A Model of Fishing Through Fish Communities Author: Thébaud, Olivier, Soulie, Jean-Christophe Abstract only. Title: A Model of Fishing Through Fish Communities Author: Thébaud, Olivier, Soulie, Jean-Christophe Abstract only. Close

• 4. [Article] Micro-economic Drivers of Profitablity in an ITQ-Management Fishery: A Preliminary Analysis of the Queensland Coral Reef Fin-Fish Fishery

  An economic survey of the commercial operators currently active in the Queensland Reef Line fishery has been carried out, as part of a research project aimed at evaluating options available to manage the ...

  Citation × Citation Citation Abstract Copy Title: Micro-economic Drivers of Profitablity in an ITQ-Management Fishery: A Preliminary Analysis of the Queensland Coral Reef Fin-Fish Fishery Author: Cannard, Toni, Norman-Lopez, Ana, Cameron, Darren, Williams, Lew, Thébaud, Olivier, Kung, John, Slade, Stephanie, Kerrigan, Brigid, Innes, James, Little, Rich, Tickell, Sharon An economic survey of the commercial operators currently active in the Queensland Reef Line fishery has been carried out, as part of a research project aimed at evaluating options available to manage the fishery. We present the background analysis of the fishery used as a basis to develop the sampling design for this survey, as well as preliminary results from the survey. The background analysis focuses on activity patterns of the fleet based on effort and catch information, as well as patterns of quota ownership and trading. Based on this information, a fleet profile describing the micro-economic structure of fishing operations is developed. This profile, which serves as a basis for the economic survey, also provides a useful basis to understand the micro-economic drivers of profitability in the fishery, and possible impacts of external shocks on fishing operations. Title: Micro-economic Drivers of Profitablity in an ITQ-Management Fishery: A Preliminary Analysis of the Queensland Coral Reef Fin-Fish Fishery Author: Cannard, Toni, Norman-Lopez, Ana, Cameron, Darren, Williams, Lew, Thébaud, Olivier, Kung, John, Slade, Stephanie, Kerrigan, Brigid, Innes, James, Little, Rich, Tickell, Sharon An economic survey of the commercial operators currently active in the Queensland Reef Line fishery has been carried out, as part of a research project aimed at evaluating options available to manage the fishery. We present the background analysis of the fishery used as a basis to develop the sampling design for this survey, as well as preliminary results from the survey. The background analysis focuses on activity patterns of the fleet based on effort and catch information, as well as patterns of quota ownership and trading. Based on this information, a fleet profile describing the micro-economic structure of fishing operations is developed. This profile, which serves as a basis for the economic survey, also provides a useful basis to understand the micro-economic drivers of profitability in the fishery, and possible impacts of external shocks on fishing operations. Close

• 5. [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

• 6. [Article] What Willingness to Pay on the French Market for An Ecolabelled Shrimp?

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: What Willingness to Pay on the French Market for An Ecolabelled Shrimp? Author: Thébaud, Olivier, Razafimandimby, Haja, Nassiri, Abdelhak Abstract only. Title: What Willingness to Pay on the French Market for An Ecolabelled Shrimp? Author: Thébaud, Olivier, Razafimandimby, Haja, Nassiri, Abdelhak Abstract only. Close

• 7. [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

• 8. [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

• 9. [Article] A comparative approach of long term changes in the characteristics of fisheries at a regional scale

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A comparative approach of long term changes in the characteristics of fisheries at a regional scale Author: Le Floc'h, Pascal, Malouli, Mohammed, Amrani, Mohammed, Thébaud, Olivier, Chaboud, Christian, Blanchard, Fabian, Maski, Hicham Abstract only. Title: A comparative approach of long term changes in the characteristics of fisheries at a regional scale Author: Le Floc'h, Pascal, Malouli, Mohammed, Amrani, Mohammed, Thébaud, Olivier, Chaboud, Christian, Blanchard, Fabian, Maski, Hicham Abstract only. Close