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• 1. [Article] The Development of a Bioeconomic Model for the Oregon Ocean Shrimp Fishery

  Selecting ‘optimal’ strategies to manage Oregon ocean shrimp is challenged by uncertain and variable natural mortality, recruitment, and growth. Fishery management is focused on measures to prevent long-term ...

  Citation × Citation Citation Abstract Copy Title: The Development of a Bioeconomic Model for the Oregon Ocean Shrimp Fishery Author: Sylvia, Gilbert, Hannah, Robert, Gallagher, Charmaine Marie Year: 2001 Selecting ‘optimal’ strategies to manage Oregon ocean shrimp is challenged by uncertain and variable natural mortality, recruitment, and growth. Fishery management is focused on measures to prevent long-term biological damage to the stock, to protect age-1 shrimp from overharvest and to sustain long term fishery benefits. Developing harvest strategies such as mesh size and season dates are complicated by economic factors including differences in output prices as a function of shrimp size. To address these questions economic information was integrated with biological data to develop static and dynamic bioeconomic models. Equilibrium biological yield per recruit and revenue per recruit models indicate that a delay in the season opening of this fishery would generate increased revenue as a result of shrimp growth and size-based price differentials. Results using a dynamic non-linear programming model indicate targeting fishing intensity later in the season can generate better yield and revenue. Sensitivity analysis indicates that higher rates of natural mortality will decrease the benefits of delaying the season opening. Future research will build on this analysis by including selectivity at length, variable recruitment, harvester and processor costs, and product quality. Title: The Development of a Bioeconomic Model for the Oregon Ocean Shrimp Fishery Author: Sylvia, Gilbert, Hannah, Robert, Gallagher, Charmaine Marie Year: 2001 Selecting ‘optimal’ strategies to manage Oregon ocean shrimp is challenged by uncertain and variable natural mortality, recruitment, and growth. Fishery management is focused on measures to prevent long-term biological damage to the stock, to protect age-1 shrimp from overharvest and to sustain long term fishery benefits. Developing harvest strategies such as mesh size and season dates are complicated by economic factors including differences in output prices as a function of shrimp size. To address these questions economic information was integrated with biological data to develop static and dynamic bioeconomic models. Equilibrium biological yield per recruit and revenue per recruit models indicate that a delay in the season opening of this fishery would generate increased revenue as a result of shrimp growth and size-based price differentials. Results using a dynamic non-linear programming model indicate targeting fishing intensity later in the season can generate better yield and revenue. Sensitivity analysis indicates that higher rates of natural mortality will decrease the benefits of delaying the season opening. Future research will build on this analysis by including selectivity at length, variable recruitment, harvester and processor costs, and product quality. Close

• 2. [Article] The Training Managers for 21st Century Fisheries Initiative: Summary and Recommendations from the Inaugural International Workshop

  Research Paper

  Citation × Citation Citation Abstract Copy Title: The Training Managers for 21st Century Fisheries Initiative: Summary and Recommendations from the Inaugural International Workshop Author: Harte, Michael, Sylvia, Gilbert, Hanna, Susan, Jodice, Laura W., Stokes, Kevin Research Paper Title: The Training Managers for 21st Century Fisheries Initiative: Summary and Recommendations from the Inaugural International Workshop Author: Harte, Michael, Sylvia, Gilbert, Hanna, Susan, Jodice, Laura W., Stokes, Kevin Research Paper Close

• 3. [Article] Optimal Storage Temperature Design for Frozen Seafood Inventories: Application to Pacific Whiting Surimi

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Optimal Storage Temperature Design for Frozen Seafood Inventories: Application to Pacific Whiting Surimi Author: Sylvia, Gilbert, Burden, Merrick, Kolbe, Edward Research Paper Title: Optimal Storage Temperature Design for Frozen Seafood Inventories: Application to Pacific Whiting Surimi Author: Sylvia, Gilbert, Burden, Merrick, Kolbe, Edward Research Paper Close

• 4. [Article] Optimization Model for the Oregon Ocean Shrimp Fishery

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Optimization Model for the Oregon Ocean Shrimp Fishery Author: Sylvia, Gilbert, Gallagher, Charmaine Marie Research Paper Title: Optimization Model for the Oregon Ocean Shrimp Fishery Author: Sylvia, Gilbert, Gallagher, Charmaine Marie Research Paper Close

• 5. [Article] Optimal Exploitation and Management of a Highly Variable Fishery: Preliminary Results from the Falkland Islands Loligo Squid Fishery

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Optimal Exploitation and Management of a Highly Variable Fishery: Preliminary Results from the Falkland Islands Loligo Squid Fishery Author: Harte, Michael, Sylvia, Gilbert, Larkin, Sherry Research Paper Title: Optimal Exploitation and Management of a Highly Variable Fishery: Preliminary Results from the Falkland Islands Loligo Squid Fishery Author: Harte, Michael, Sylvia, Gilbert, Larkin, Sherry Research Paper Close

• 6. [Article] FishTrax and Electronic Fishery Information Systems: The Next Revolution in Fishery Management and Economics of Fishery Information Systems: A Case Study of Fish Trax

  Abstract Only

  Citation × Citation Citation Abstract Copy Title: FishTrax and Electronic Fishery Information Systems: The Next Revolution in Fishery Management and Economics of Fishery Information Systems: A Case Study of Fish Trax Author: Sylvia, Gilbert Abstract Only Title: FishTrax and Electronic Fishery Information Systems: The Next Revolution in Fishery Management and Economics of Fishery Information Systems: A Case Study of Fish Trax Author: Sylvia, Gilbert Abstract Only Close