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• 1. [Article] Simulation Model Evaluation of Some Fisheries Balance Indicators

  Chronic overcapacity has been identified as a major cause of the overfishing of Europe’s fish stocks and the poor economic performance of the European fishing fleets. Mechanisms are needed to ensure that ...

  Citation × Citation Citation Abstract Copy Title: Simulation Model Evaluation of Some Fisheries Balance Indicators Author: Scott, Robert, Sampson, David Chronic overcapacity has been identified as a major cause of the overfishing of Europe’s fish stocks and the poor economic performance of the European fishing fleets. Mechanisms are needed to ensure that the capacity of European fishing fleets remain proportionate to available fish stocks. To that end, the European Commission developed “Guidelines for an improved analysis of the balance between fishing capacity and fishing opportunities”, which specify a minimum set of fleet-based technical, biological, economic, and social indicators that purportedly measure the balance between fishing fleets and fish resources. A bioeconomic simulation model was developed to assist in the evaluation of some of these balance indicators. The model is age-structured, like standard single-species stock assessment models, but accommodates multiple independent fish stocks that are harvested by multiple independent fishing fleets. The fish stocks occupy multiple spatial regions with diffusion of fish between regions. The fishing fleets choose where and how to fish based on anticipated profits. Randomness is included in the simulated system in the annual fish recruitments and their spatial distribution. The model was used to generate a series of balance indicators that were then compared against the true conditions in the simulated fisheries to evaluate whether the indicators provide accurate signals of system status. The simulations showed that randomness in recruitment propagates directly into randomness in the balance indicators implying that it will be difficult to detect meaningful signals from any short time series of balance indicator values. Title: Simulation Model Evaluation of Some Fisheries Balance Indicators Author: Scott, Robert, Sampson, David Chronic overcapacity has been identified as a major cause of the overfishing of Europe’s fish stocks and the poor economic performance of the European fishing fleets. Mechanisms are needed to ensure that the capacity of European fishing fleets remain proportionate to available fish stocks. To that end, the European Commission developed “Guidelines for an improved analysis of the balance between fishing capacity and fishing opportunities”, which specify a minimum set of fleet-based technical, biological, economic, and social indicators that purportedly measure the balance between fishing fleets and fish resources. A bioeconomic simulation model was developed to assist in the evaluation of some of these balance indicators. The model is age-structured, like standard single-species stock assessment models, but accommodates multiple independent fish stocks that are harvested by multiple independent fishing fleets. The fish stocks occupy multiple spatial regions with diffusion of fish between regions. The fishing fleets choose where and how to fish based on anticipated profits. Randomness is included in the simulated system in the annual fish recruitments and their spatial distribution. The model was used to generate a series of balance indicators that were then compared against the true conditions in the simulated fisheries to evaluate whether the indicators provide accurate signals of system status. The simulations showed that randomness in recruitment propagates directly into randomness in the balance indicators implying that it will be difficult to detect meaningful signals from any short time series of balance indicator values. Close

• 2. [Article] Resource Assessment Surveys As the Basis for Effective Fisheries Management

  This paper discusses the use of resource assessment surveys as the basis for effective fisheries management drawing on the resource assessment survey of the Arabian Sea coast of Oman. This survey, completed ...

  Citation × Citation Citation Abstract Copy Title: Resource Assessment Surveys As the Basis for Effective Fisheries Management Author: Shallard, Bruce, Al-Oufi, Hamed Said, Bose, Shekar This paper discusses the use of resource assessment surveys as the basis for effective fisheries management drawing on the resource assessment survey of the Arabian Sea coast of Oman. This survey, completed in 2009, has been undertaken in the context of the primary aim of the Oman Ministry of Fisheries Wealth (MFW) being to ensure that fisheries are developed and managed for the advantage of the people of Oman in a manner that is sustainable, maintains biodiversity and is consistent with the Code of Conduct for Responsible Fisheries. The goal of the survey was to provide estimates of the fishable biomass of principal demersal, small pelagic and mesopelagic fish species off the Arabian Sea coast of Oman for ongoing stock assessment of Omani fisheries, to guide development and investment decisions. The MFW is now engaging in the development of a coastal fishing fleet and the assessment of the most appropriate management approach for this fishery. The MFW‟s view is that the resource potential within the country‟s territorial waters (as indicated by the recent fisheries resource assessment survey), limited harvesting capacity, extent of technological advancement, and economic performance of the current traditional fleet, indicates that the current level of exploitation of fish resources is not optimal. Management proposals must therefore be developed in the context of the survey findings. Comparison will also be made with the resource assessment survey completed for the waters of the United Arab Emirates and the subsequent management initiatives developed in Abu Dhabi based on the results of the resource survey. Title: Resource Assessment Surveys As the Basis for Effective Fisheries Management Author: Shallard, Bruce, Al-Oufi, Hamed Said, Bose, Shekar This paper discusses the use of resource assessment surveys as the basis for effective fisheries management drawing on the resource assessment survey of the Arabian Sea coast of Oman. This survey, completed in 2009, has been undertaken in the context of the primary aim of the Oman Ministry of Fisheries Wealth (MFW) being to ensure that fisheries are developed and managed for the advantage of the people of Oman in a manner that is sustainable, maintains biodiversity and is consistent with the Code of Conduct for Responsible Fisheries. The goal of the survey was to provide estimates of the fishable biomass of principal demersal, small pelagic and mesopelagic fish species off the Arabian Sea coast of Oman for ongoing stock assessment of Omani fisheries, to guide development and investment decisions. The MFW is now engaging in the development of a coastal fishing fleet and the assessment of the most appropriate management approach for this fishery. The MFW‟s view is that the resource potential within the country‟s territorial waters (as indicated by the recent fisheries resource assessment survey), limited harvesting capacity, extent of technological advancement, and economic performance of the current traditional fleet, indicates that the current level of exploitation of fish resources is not optimal. Management proposals must therefore be developed in the context of the survey findings. Comparison will also be made with the resource assessment survey completed for the waters of the United Arab Emirates and the subsequent management initiatives developed in Abu Dhabi based on the results of the resource survey. Close

• 3. [Article] How Deep Is the European Union Fleet Fishing?

  No poster available.

  Citation × Citation Citation Abstract Copy Title: How Deep Is the European Union Fleet Fishing? Author: Villasante, Sebastian No poster available. Title: How Deep Is the European Union Fleet Fishing? Author: Villasante, Sebastian No poster available. Close

• 4. [Article] Aquaculture and Food Security - Can Fish Farming Fill the Gap?

  While aquaculture has provided economic and nutritional benefits to millions, there are concerns that unconstrained sector expansion and intensification, coupled with its ecological and social impacts, ...

  Citation × Citation Citation Abstract Copy Title: Aquaculture and Food Security - Can Fish Farming Fill the Gap? Author: Troell, Max While aquaculture has provided economic and nutritional benefits to millions, there are concerns that unconstrained sector expansion and intensification, coupled with its ecological and social impacts, globalization of markets, and climate change, may have undesirable impacts on the resilience of social-ecological systems. A significant part of the aquaculture expansion is expected to occur in coastal areas, where it directly affects resource systems already experiencing large pressure from human activities. Thus, there is a risk that the anticipated benefits from aquaculture may come at the expense of increased pressure on coastal ecosystem services, thus jeopardizing coastal people’s food security and livelihoods. Further, intensification may also indirectly increase the dependence on marine ecosystems through usage of fish resources as feeds. The practice of intensive farming of fish and crustaceans is characterised by inputs of high quality resources and energy and release of effluents. The industry continues to improve performance through research on food development and system designs, and recent initiative, the “Aquaculture dialogue”, attempts to identify sustainability criteria for a selection of cultured species. In addition FAO have recently moved beyond their earlier established “code of conducts” and are now developing a broader systematic perspective on aquaculture, i.e. “Ecosystem approach to aquaculture”. This presentation will discuss how aquaculture may impact on social-ecological resilience, more broadly and also in connection to coastal aquaculture development, and specifically considers the intensification of production methods. In connection to this some recent sustainability tools/indicators will briefly be discussed out from this perspective. Title: Aquaculture and Food Security - Can Fish Farming Fill the Gap? Author: Troell, Max While aquaculture has provided economic and nutritional benefits to millions, there are concerns that unconstrained sector expansion and intensification, coupled with its ecological and social impacts, globalization of markets, and climate change, may have undesirable impacts on the resilience of social-ecological systems. A significant part of the aquaculture expansion is expected to occur in coastal areas, where it directly affects resource systems already experiencing large pressure from human activities. Thus, there is a risk that the anticipated benefits from aquaculture may come at the expense of increased pressure on coastal ecosystem services, thus jeopardizing coastal people’s food security and livelihoods. Further, intensification may also indirectly increase the dependence on marine ecosystems through usage of fish resources as feeds. The practice of intensive farming of fish and crustaceans is characterised by inputs of high quality resources and energy and release of effluents. The industry continues to improve performance through research on food development and system designs, and recent initiative, the “Aquaculture dialogue”, attempts to identify sustainability criteria for a selection of cultured species. In addition FAO have recently moved beyond their earlier established “code of conducts” and are now developing a broader systematic perspective on aquaculture, i.e. “Ecosystem approach to aquaculture”. This presentation will discuss how aquaculture may impact on social-ecological resilience, more broadly and also in connection to coastal aquaculture development, and specifically considers the intensification of production methods. In connection to this some recent sustainability tools/indicators will briefly be discussed out from this perspective. Close

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

  Abstract only.

  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

• 6. [Article] Sustainable Management of Fishery Resources and Development in Africa: Sustainable Management of Artisanal Fisheries and Local Development in Senegalese Coast Facing The Globalization of Fish Market

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Sustainable Management of Fishery Resources and Development in Africa: Sustainable Management of Artisanal Fisheries and Local Development in Senegalese Coast Facing The Globalization of Fish Market Author: Astou, Niang Ndeye, Michel, Lesourd Abstract only. Title: Sustainable Management of Fishery Resources and Development in Africa: Sustainable Management of Artisanal Fisheries and Local Development in Senegalese Coast Facing The Globalization of Fish Market Author: Astou, Niang Ndeye, Michel, Lesourd Abstract only. Close