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• 1. [Article] Coping Strategies Under Uncertain Environment: The Case of Mexican Coastal Fishers

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Coping Strategies Under Uncertain Environment: The Case of Mexican Coastal Fishers Author: Cabrera, Miguel Angel, Salas, Silvia, Bjørkan, Maiken, Bobadilla, Felipe Abstract only. Title: Coping Strategies Under Uncertain Environment: The Case of Mexican Coastal Fishers Author: Cabrera, Miguel Angel, Salas, Silvia, Bjørkan, Maiken, Bobadilla, Felipe Abstract only. Close

• 2. [Article] Measuring Fishing Vessel Safety and Risk Taking

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Measuring Fishing Vessel Safety and Risk Taking Author: Di, Jin, Thunberg, Eric Abstract only. Title: Measuring Fishing Vessel Safety and Risk Taking Author: Di, Jin, Thunberg, Eric Abstract only. Close

• 3. [Article] Uncertainty and Risk in the Ecosystems Approach to Fisheries Management: Some Insights from an Ecosystem Computer Simulation Model

  Understanding the complexities of ecosystems is difficult enough, but when the human dimension is added to the inherent uncertainty and risk in fisheries management, the actual versus expected results ...

  Citation × Citation Citation Abstract Copy Title: Uncertainty and Risk in the Ecosystems Approach to Fisheries Management: Some Insights from an Ecosystem Computer Simulation Model Author: Ward, John, Metzner, Rebecca, DeYoung, Cassandra Understanding the complexities of ecosystems is difficult enough, but when the human dimension is added to the inherent uncertainty and risk in fisheries management, the actual versus expected results move from the counter-intuitive to the paradoxical. Without an adequate understanding of the interrelationships between ecosystem components, including the human dimension, scientific management becomes intuition-based management, which is often counterproductive to achieving desired goals and objectives. A computer simulation model is developed for multiple species, resource areas, stocks, and cohorts. To explicitly incorporate ecosystem effects predator-prey and competitor relationships are constructed to interpret interactions between different species of fish. Fishing fleet dynamics are captured by modeling multiple vessel classes based on specifications for catchability and concentration profiles. Additional uncertainty is included through the effects of market supply and demand on price for different discount rates. Economic impacts are also estimated for each point in time as biological and market conditions change. This simulation model results are then compared to determine if the management objective of maximization of net benefits subject to the fish stock conservation goal are achievable in an ecosystem context while also considering impacts on jobs, income, and sales. Insights from this simulation of an ecosystem should provide information on the needed research required for the ecosystem approach to fisheries management to be successful in achieving its multiple objectives. Title: Uncertainty and Risk in the Ecosystems Approach to Fisheries Management: Some Insights from an Ecosystem Computer Simulation Model Author: Ward, John, Metzner, Rebecca, DeYoung, Cassandra Understanding the complexities of ecosystems is difficult enough, but when the human dimension is added to the inherent uncertainty and risk in fisheries management, the actual versus expected results move from the counter-intuitive to the paradoxical. Without an adequate understanding of the interrelationships between ecosystem components, including the human dimension, scientific management becomes intuition-based management, which is often counterproductive to achieving desired goals and objectives. A computer simulation model is developed for multiple species, resource areas, stocks, and cohorts. To explicitly incorporate ecosystem effects predator-prey and competitor relationships are constructed to interpret interactions between different species of fish. Fishing fleet dynamics are captured by modeling multiple vessel classes based on specifications for catchability and concentration profiles. Additional uncertainty is included through the effects of market supply and demand on price for different discount rates. Economic impacts are also estimated for each point in time as biological and market conditions change. This simulation model results are then compared to determine if the management objective of maximization of net benefits subject to the fish stock conservation goal are achievable in an ecosystem context while also considering impacts on jobs, income, and sales. Insights from this simulation of an ecosystem should provide information on the needed research required for the ecosystem approach to fisheries management to be successful in achieving its multiple objectives. Close

• 4. [Article] Adaptation of Fishing Communities in the Philippines to the Impacts of Climate Change

  More than half a million small fishers in the Philippines have been availing of loans from Quedancor, the credit arm of the Department of Agriculture. The financing scheme has been quite successful with repayment ...

  Citation × Citation Citation Abstract Copy Title: Adaptation of Fishing Communities in the Philippines to the Impacts of Climate Change Author: Campos, Maria Rebecca More than half a million small fishers in the Philippines have been availing of loans from Quedancor, the credit arm of the Department of Agriculture. The financing scheme has been quite successful with repayment rate at 95%. However, the occurrence of natural calamities such as typhoons; as well as pests and diseases has affected the productivity of fisheries, thus, hindering fishers from paying and renewing their loans. Failure to access credit could disable them to continue venturing on fishing activities and could eventually jeopardize the welfare of their entire household. The inability of creditors to pay their loans and meet their obligations also impair, to a large extent, the financial operation and viability of the lending institutions. This study analyzes the natural risks and risk management practices of these fishers. It recommends mitigation mechanisms to minimize the impact of natural calamities. Moreover, it suggests a bridge financing scheme that can be an effective and efficient instrument to enable fishers to carry on their livelihood activities and support their families_ basic needs and slowly recover from their losses. Title: Adaptation of Fishing Communities in the Philippines to the Impacts of Climate Change Author: Campos, Maria Rebecca More than half a million small fishers in the Philippines have been availing of loans from Quedancor, the credit arm of the Department of Agriculture. The financing scheme has been quite successful with repayment rate at 95%. However, the occurrence of natural calamities such as typhoons; as well as pests and diseases has affected the productivity of fisheries, thus, hindering fishers from paying and renewing their loans. Failure to access credit could disable them to continue venturing on fishing activities and could eventually jeopardize the welfare of their entire household. The inability of creditors to pay their loans and meet their obligations also impair, to a large extent, the financial operation and viability of the lending institutions. This study analyzes the natural risks and risk management practices of these fishers. It recommends mitigation mechanisms to minimize the impact of natural calamities. Moreover, it suggests a bridge financing scheme that can be an effective and efficient instrument to enable fishers to carry on their livelihood activities and support their families_ basic needs and slowly recover from their losses. Close

• 5. [Article] The Effect of Renumeration System on the Economic Performance of Small Scale Vessels- The Case of Purse Seining in the South Central- Vietnam

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: The Effect of Renumeration System on the Economic Performance of Small Scale Vessels- The Case of Purse Seining in the South Central- Vietnam Author: Nguyen, Kim Anh, Flaaten, Ola, Pham, Thi Thanh Thuy Abstract only. Title: The Effect of Renumeration System on the Economic Performance of Small Scale Vessels- The Case of Purse Seining in the South Central- Vietnam Author: Nguyen, Kim Anh, Flaaten, Ola, Pham, Thi Thanh Thuy Abstract only. Close

• 6. [Article] Fishery Management When Biological and Economic Disturbances Are Correlated

  Economists studying the management of fisheries have universally assumed disturbances affecting harvest costs are unrelated to disturbances affecting biological growth. This paper gives examples of commercially ...

  Citation × Citation Citation Abstract Copy Title: Fishery Management When Biological and Economic Disturbances Are Correlated Author: Kennedy, Chris J. Economists studying the management of fisheries have universally assumed disturbances affecting harvest costs are unrelated to disturbances affecting biological growth. This paper gives examples of commercially valuable species that are impacted reproductively and behaviorally by a single environmental variable (e.g., temperature), leading to correlated disturbances in current marginal harvest costs and future biological growth. A general analytical model examines the importance of considering correlated disturbances when choosing optimal escapement targets, and shows how the presence of correlation affects the value of waiting for information on harvest costs. These results give insight as to the appropriate use of "self-correcting" mechanisms for controlling harvest, such as landing fees, versus hard targets, and provide a framework for proactive management of fisheries in the face of large-scale marine disturbances that can affect both the biological growth and behavior of commercially valuable species. Title: Fishery Management When Biological and Economic Disturbances Are Correlated Author: Kennedy, Chris J. Economists studying the management of fisheries have universally assumed disturbances affecting harvest costs are unrelated to disturbances affecting biological growth. This paper gives examples of commercially valuable species that are impacted reproductively and behaviorally by a single environmental variable (e.g., temperature), leading to correlated disturbances in current marginal harvest costs and future biological growth. A general analytical model examines the importance of considering correlated disturbances when choosing optimal escapement targets, and shows how the presence of correlation affects the value of waiting for information on harvest costs. These results give insight as to the appropriate use of "self-correcting" mechanisms for controlling harvest, such as landing fees, versus hard targets, and provide a framework for proactive management of fisheries in the face of large-scale marine disturbances that can affect both the biological growth and behavior of commercially valuable species. Close

• 7. [Article] Toward Capturing Model Uncertainty in Bioeconomic Models

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Toward Capturing Model Uncertainty in Bioeconomic Models Author: Woodward, Richard, Tomberlin, David Abstract only. Title: Toward Capturing Model Uncertainty in Bioeconomic Models Author: Woodward, Richard, Tomberlin, David Abstract only. Close

• 8. [Article] Assessing Risk and Uncertainty in Fisheries Rebuilding Plans

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Assessing Risk and Uncertainty in Fisheries Rebuilding Plans Author: Vestergaard, Niels, Brandt, Urs Steiner Abstract only. Title: Assessing Risk and Uncertainty in Fisheries Rebuilding Plans Author: Vestergaard, Niels, Brandt, Urs Steiner Abstract only. Close

• 9. [Article] Western Rock Lobster Fishery: A Case Study in Fisheries Management - From Success? to Recruitment Failure? and Where to Now?

  Australia’s western rock lobster fishery is its most valuable and hence from a biological perspective most tightly managed major commercial fishery, yet it has been beset by problems of miniscule recruitment ...

  Citation × Citation Citation Abstract Copy Title: Western Rock Lobster Fishery: A Case Study in Fisheries Management - From Success? to Recruitment Failure? and Where to Now? Author: Nicholls, John, McElroy, James Kevin, McLeod, Paul, Lindner, Bob Australia’s western rock lobster fishery is its most valuable and hence from a biological perspective most tightly managed major commercial fishery, yet it has been beset by problems of miniscule recruitment over the past 3 years. This coming year 2010-11 is little better. It was the joint first Marine Stewardship Council certified fishery - first in April 2001, recertified in 2006 and again in Jan 2010. Despite this, it has suffered all the well known problems of first, an open access fishery, and even in its current management mode of a total effort controlled fishery – based on total number of pots- is subject to ever shortening seasons and only moderate prices as a result of “the race to fish”. The paper first presents the results of a bio-economic model on the comparative costs and benefits of an ITQ versus ITE system for this fishery. The results were derived from a purpose built bioeconomic model with three separate bio-geographic zones in the fishery using non linear optimization to produce ten year steady state solutions for alternative management options. Management options included the current pot control system, and several versions of an individual transferable catch quota system. Key outputs for each scenario include: net economic benefits, breeder biomass index, annual catch, annual pot lifts, number of pots and vessel numbers. The results indicate significant potential net economic gains from moving away from the current input control regime. The range of scenarios modeled illustrated some of the tradeoffs between maximizing net economic returns and minimizing biological risks, as well as quantifying the impact of changes such as an extended fishing season. The paper highlights the issues faced by most fisheries during their lifespan - from a progressive concentration of fishing and processing effort with business diversification and monopoly-like behaviour attempting to reduce/diversify risk by its most successful participants – to an industry in crisis simply fighting for its survival. The paper illustrates why undiversified fishing in such a situation as ITEs is too risky even for vertically integrated fishing and marketing companies. The current situation is forcing a major rethink by the industry’s leaders with ITQs again on the agenda to replace the current failed individual total effort (ITE) limit policy. Title: Western Rock Lobster Fishery: A Case Study in Fisheries Management - From Success? to Recruitment Failure? and Where to Now? Author: Nicholls, John, McElroy, James Kevin, McLeod, Paul, Lindner, Bob Australia’s western rock lobster fishery is its most valuable and hence from a biological perspective most tightly managed major commercial fishery, yet it has been beset by problems of miniscule recruitment over the past 3 years. This coming year 2010-11 is little better. It was the joint first Marine Stewardship Council certified fishery - first in April 2001, recertified in 2006 and again in Jan 2010. Despite this, it has suffered all the well known problems of first, an open access fishery, and even in its current management mode of a total effort controlled fishery – based on total number of pots- is subject to ever shortening seasons and only moderate prices as a result of “the race to fish”. The paper first presents the results of a bio-economic model on the comparative costs and benefits of an ITQ versus ITE system for this fishery. The results were derived from a purpose built bioeconomic model with three separate bio-geographic zones in the fishery using non linear optimization to produce ten year steady state solutions for alternative management options. Management options included the current pot control system, and several versions of an individual transferable catch quota system. Key outputs for each scenario include: net economic benefits, breeder biomass index, annual catch, annual pot lifts, number of pots and vessel numbers. The results indicate significant potential net economic gains from moving away from the current input control regime. The range of scenarios modeled illustrated some of the tradeoffs between maximizing net economic returns and minimizing biological risks, as well as quantifying the impact of changes such as an extended fishing season. The paper highlights the issues faced by most fisheries during their lifespan - from a progressive concentration of fishing and processing effort with business diversification and monopoly-like behaviour attempting to reduce/diversify risk by its most successful participants – to an industry in crisis simply fighting for its survival. The paper illustrates why undiversified fishing in such a situation as ITEs is too risky even for vertically integrated fishing and marketing companies. The current situation is forcing a major rethink by the industry’s leaders with ITQs again on the agenda to replace the current failed individual total effort (ITE) limit policy. Close