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• 1. [Article] Comparing Energy intensity Results for Commercial Fisheries in France

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  Citation × Citation Citation Abstract Copy Title: Comparing Energy intensity Results for Commercial Fisheries in France Author: Dangeard, Isabelle, Le Floc'h, Pascal, Guyader, Olivier, Daures, Fabienne No poster available. Title: Comparing Energy intensity Results for Commercial Fisheries in France Author: Dangeard, Isabelle, Le Floc'h, Pascal, Guyader, Olivier, Daures, Fabienne No poster available. Close

• 2. [Article] What Is Behind Fleet Evolution: Application of A Flow Analysis to the French Fisheries

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  Citation × Citation Citation Abstract Copy Title: What Is Behind Fleet Evolution: Application of A Flow Analysis to the French Fisheries Author: Berthou, Patrick, Leblond, Emilie, Quillérou, Emmanuelle, Guyader, Olivier, Daures, Fabienne Abstract only. Title: What Is Behind Fleet Evolution: Application of A Flow Analysis to the French Fisheries Author: Berthou, Patrick, Leblond, Emilie, Quillérou, Emmanuelle, Guyader, Olivier, Daures, Fabienne Abstract only. Close

• 3. [Article] A Bio-Economic Model for the Viable Managementof the Coastal Fishery in French Guyana

  The coastal fishery in French Guyana is a challenging case study for the implementation of the ecosystem based fishery management. Although the current situation of this small scale fishery could be considered ...

  Citation × Citation Citation Abstract Copy Title: A Bio-Economic Model for the Viable Managementof the Coastal Fishery in French Guyana Author: Gourguet, Sophie, Doyen, Luc, Cisse, Abdoul, Blanchard, Fabian, Guyader, Olivier, Pereau, Jean Christophe The coastal fishery in French Guyana is a challenging case study for the implementation of the ecosystem based fishery management. Although the current situation of this small scale fishery could be considered as satisfactory, the viability of the fishery can be questioned. Indeed according to demographic scenarios, the growth of the population will generate an increase of local food demand and therefore growing fishing pressures. Moreover, there is no direct regulation for limiting the fishing catches. Models and quantitative methods to tackle this sustainability issue are still lacking for such mall-scale fisheries mainly because of the various complexities underlying the systems including the heterogeneity of the production factors, the weak selectivity of fleets and high fish biodiversity levels. In the present paper, we both use numerical simulations and a viability perspective to deal with such a problem. We first build a multi-species multi-fleets dynamic model relying on thirteen exploited species and four types of fleets. It accounts for potential trophic interactions, fishing effort and the corresponding costs and revenues. The model was fit on data collected since 2006 by Ifremer: daily production and efforts data, as well as economic data from a survey on the production costs and selling prices in 2009.The co-viability of the system under different scenarios of fishing efforts is studied through ecological and economic performances. The biological viability constraints focus on biodiversity index as species richness or trophic index while economic viability constraints intend to guarantee profitability to all the fleets. Title: A Bio-Economic Model for the Viable Managementof the Coastal Fishery in French Guyana Author: Gourguet, Sophie, Doyen, Luc, Cisse, Abdoul, Blanchard, Fabian, Guyader, Olivier, Pereau, Jean Christophe The coastal fishery in French Guyana is a challenging case study for the implementation of the ecosystem based fishery management. Although the current situation of this small scale fishery could be considered as satisfactory, the viability of the fishery can be questioned. Indeed according to demographic scenarios, the growth of the population will generate an increase of local food demand and therefore growing fishing pressures. Moreover, there is no direct regulation for limiting the fishing catches. Models and quantitative methods to tackle this sustainability issue are still lacking for such mall-scale fisheries mainly because of the various complexities underlying the systems including the heterogeneity of the production factors, the weak selectivity of fleets and high fish biodiversity levels. In the present paper, we both use numerical simulations and a viability perspective to deal with such a problem. We first build a multi-species multi-fleets dynamic model relying on thirteen exploited species and four types of fleets. It accounts for potential trophic interactions, fishing effort and the corresponding costs and revenues. The model was fit on data collected since 2006 by Ifremer: daily production and efforts data, as well as economic data from a survey on the production costs and selling prices in 2009.The co-viability of the system under different scenarios of fishing efforts is studied through ecological and economic performances. The biological viability constraints focus on biodiversity index as species richness or trophic index while economic viability constraints intend to guarantee profitability to all the fleets. Close

• 4. [Article] Comparing bookkeeping and field survey methods for assessing fishing fleets economic performance. A case study of Brittany fishing fleets (France)

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Comparing bookkeeping and field survey methods for assessing fishing fleets economic performance. A case study of Brittany fishing fleets (France) Author: Thebaud, Olivier, Martin, Annaick, le Floc'h, Pascal, Boncoeur, Jean, Guyader, Olivier, Daures, Fabienne Research Paper Title: Comparing bookkeeping and field survey methods for assessing fishing fleets economic performance. A case study of Brittany fishing fleets (France) Author: Thebaud, Olivier, Martin, Annaick, le Floc'h, Pascal, Boncoeur, Jean, Guyader, Olivier, Daures, Fabienne Research Paper Close

• 5. [Article] Mediterranean Fishing Strategies and interactions Between Small Scale Fisheries and Trawlers in the Mediterranean Hake Fishery

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  Citation × Citation Citation Abstract Copy Title: Mediterranean Fishing Strategies and interactions Between Small Scale Fisheries and Trawlers in the Mediterranean Hake Fishery Author: Le Grand, Christelle, Brigaudeau, Cécile, Macher, Claire, Guyader, Olivier, Daures, Fabienne Abstract only. Title: Mediterranean Fishing Strategies and interactions Between Small Scale Fisheries and Trawlers in the Mediterranean Hake Fishery Author: Le Grand, Christelle, Brigaudeau, Cécile, Macher, Claire, Guyader, Olivier, Daures, Fabienne Abstract only. Close

• 6. [Article] Moored Fishing Aggregating Devices Exploitation By Small-Scale Fleets in the Caribbean: Review and Outlook After 20 Years

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  Citation × Citation Citation Abstract Copy Title: Moored Fishing Aggregating Devices Exploitation By Small-Scale Fleets in the Caribbean: Review and Outlook After 20 Years Author: Lionel, Reynal, Guyader, Olivier Abstract only. Title: Moored Fishing Aggregating Devices Exploitation By Small-Scale Fleets in the Caribbean: Review and Outlook After 20 Years Author: Lionel, Reynal, Guyader, Olivier Abstract only. Close

• 7. [Article] Estimating MSY and MEY in Multi-Species and Multi-Fleet Fisheries: The Case of the Bay of Biscay Mixed Fisheries

  Most fish stocks worldwide are not optimally exploited and are therefore are producing less in biologic and economic terms that what it could be obtained. MSY objective for all the stocks by 2015 is put ...

  Citation × Citation Citation Abstract Copy Title: Estimating MSY and MEY in Multi-Species and Multi-Fleet Fisheries: The Case of the Bay of Biscay Mixed Fisheries Author: Guillen, Jordi, Merzéréaud, Mathieu, Fifas, Spyros, Macher, Claire, Bertignac, Michel, Guyader, Olivier Most fish stocks worldwide are not optimally exploited and are therefore are producing less in biologic and economic terms that what it could be obtained. MSY objective for all the stocks by 2015 is put forward by several countries as management target to be achieved, while other countries such as Australia have moved towards MEY as target. In multi-species and multi-fleet fisheries however single species assessments and MSY and MEY reference points are often not valid. In this paper, we analyze the calculation of MSY and MEY in multi-species and multi-fleet fisheries, applied to the Bay of Biscay demersal fisheries. Estimations of MSY and MEY performed in this paper show that increases of the overall landings and economic performances can be obtained by fishing effort reductions and global selectivity improvements in the Bay of Biscay demersal fishery. In this paper we have also shown the importance of accounting for the multi-fleet nature of the fisheries, and so the capacity to allocate fishing effort between fleets to obtain better yields taking into account joint production processes, various métiers and reallocation of effort (both in production and economic terms). Estimating profitability changes when fishing at MEY and in the current situation of overcapacity and overexploitation offers an estimation of the costs of not fishing at MSY and MEY. Title: Estimating MSY and MEY in Multi-Species and Multi-Fleet Fisheries: The Case of the Bay of Biscay Mixed Fisheries Author: Guillen, Jordi, Merzéréaud, Mathieu, Fifas, Spyros, Macher, Claire, Bertignac, Michel, Guyader, Olivier Most fish stocks worldwide are not optimally exploited and are therefore are producing less in biologic and economic terms that what it could be obtained. MSY objective for all the stocks by 2015 is put forward by several countries as management target to be achieved, while other countries such as Australia have moved towards MEY as target. In multi-species and multi-fleet fisheries however single species assessments and MSY and MEY reference points are often not valid. In this paper, we analyze the calculation of MSY and MEY in multi-species and multi-fleet fisheries, applied to the Bay of Biscay demersal fisheries. Estimations of MSY and MEY performed in this paper show that increases of the overall landings and economic performances can be obtained by fishing effort reductions and global selectivity improvements in the Bay of Biscay demersal fishery. In this paper we have also shown the importance of accounting for the multi-fleet nature of the fisheries, and so the capacity to allocate fishing effort between fleets to obtain better yields taking into account joint production processes, various métiers and reallocation of effort (both in production and economic terms). Estimating profitability changes when fishing at MEY and in the current situation of overcapacity and overexploitation offers an estimation of the costs of not fishing at MSY and MEY. Close

• 8. [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

• 9. [Article] Addressing the Distribution of Bio-Economic Impacts of Management Measures Between Fleets: the Case of the Demersal Fisheries in the Bay of Biscay

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  Citation × Citation Citation Abstract Copy Title: Addressing the Distribution of Bio-Economic Impacts of Management Measures Between Fleets: the Case of the Demersal Fisheries in the Bay of Biscay Author: Fresard, Marjolaine, Merzéréaud, Mathieu, Le Grand, Christelle, Macher, Claire, Bertignac, Michel, Guyader, Olivier, Daures, Fabienne, Fifas, Spyros, Le Corre, Lanwenn Abstract only. Title: Addressing the Distribution of Bio-Economic Impacts of Management Measures Between Fleets: the Case of the Demersal Fisheries in the Bay of Biscay Author: Fresard, Marjolaine, Merzéréaud, Mathieu, Le Grand, Christelle, Macher, Claire, Bertignac, Michel, Guyader, Olivier, Daures, Fabienne, Fifas, Spyros, Le Corre, Lanwenn Abstract only. Close

• 10. [Article] An integrated and statistical approach for the valuation of economic status of small scale fisheries

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  Citation × Citation Citation Abstract Copy Title: An integrated and statistical approach for the valuation of economic status of small scale fisheries Author: Van Iseghem, Sylvie, Demaneche, Sébastien, Berthou, Patrick, Leblond, Emilie, Brigaudeau, Cécile, Guyader, Olivier, Daures, Fabienne Abstract only. Title: An integrated and statistical approach for the valuation of economic status of small scale fisheries Author: Van Iseghem, Sylvie, Demaneche, Sébastien, Berthou, Patrick, Leblond, Emilie, Brigaudeau, Cécile, Guyader, Olivier, Daures, Fabienne Abstract only. Close