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• 21. [Article] Choke Species, Discards and Quota Prices in Multispecies Fisheries

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: Choke Species, Discards and Quota Prices in Multispecies Fisheries Author: Hatcher, Aaron Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: Choke Species, Discards and Quota Prices in Multispecies Fisheries Author: Hatcher, Aaron Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 22. [Article] A Small Parasite Making Big Waves: Industry Consolidation and Collaboration under Spatial-Dynamic Externalities

  Parasites and diseases represent major challenges in aquaculture. In the Norwegian salmon farming industry, costs associated with treatment of sea lice are surging and reached 5bn NOK or 10% of the industry’s ...

  Citation × Citation Citation Abstract Copy Title: A Small Parasite Making Big Waves: Industry Consolidation and Collaboration under Spatial-Dynamic Externalities Author: Abbott, Joshua, Morency-Lavoie, Félix, Nøstbakken, Linda Parasites and diseases represent major challenges in aquaculture. In the Norwegian salmon farming industry, costs associated with treatment of sea lice are surging and reached 5bn NOK or 10% of the industry’s total export value in 2015. In addition to the direct impact on production, sea lice affect the industry indirectly through stricter regulations and monitoring requirements. Another feature of the Norwegian salmon farming industry is increasing consolidation ever since the deregulation in the early 1990s. In this paper, we investigate whether and to which extent consolidation is driven by a desire to internalize the spatial disease and parasite externality. Theory suggests that such intra-industry spatial externalities create incentives both for mergers and acquisitions, or spatial cooperation, to increase coordination in pest management. Using spatial techniques to capture the geographical spread and density of sea lice, we estimate the spatial dependencies between neighboring farms. The analysis rests on a novel and unique dataset regrouping high frequency biological and financial information at the farm and company level, with industry-wide history of mergers and acquisition as well as of collaboration in the form of joint production. Using this dataset, we are able to identify the impact of sea lice and other pathogens on the structure and behavior of the industry.  Title: A Small Parasite Making Big Waves: Industry Consolidation and Collaboration under Spatial-Dynamic Externalities Author: Abbott, Joshua, Morency-Lavoie, Félix, Nøstbakken, Linda Parasites and diseases represent major challenges in aquaculture. In the Norwegian salmon farming industry, costs associated with treatment of sea lice are surging and reached 5bn NOK or 10% of the industry’s total export value in 2015. In addition to the direct impact on production, sea lice affect the industry indirectly through stricter regulations and monitoring requirements. Another feature of the Norwegian salmon farming industry is increasing consolidation ever since the deregulation in the early 1990s. In this paper, we investigate whether and to which extent consolidation is driven by a desire to internalize the spatial disease and parasite externality. Theory suggests that such intra-industry spatial externalities create incentives both for mergers and acquisitions, or spatial cooperation, to increase coordination in pest management. Using spatial techniques to capture the geographical spread and density of sea lice, we estimate the spatial dependencies between neighboring farms. The analysis rests on a novel and unique dataset regrouping high frequency biological and financial information at the farm and company level, with industry-wide history of mergers and acquisition as well as of collaboration in the form of joint production. Using this dataset, we are able to identify the impact of sea lice and other pathogens on the structure and behavior of the industry.  Close

• 23. [Article] Modelling a Small-Scale Sea Cucumber Fishery in Yucatan

  The status of many sea cucumber fisheries in the world is overexploited. Some of the reasons are: an increase in demand from China, the distance of these fisheries to China, and the high rate of fisheries ...

  Citation × Citation Citation Abstract Copy Title: Modelling a Small-Scale Sea Cucumber Fishery in Yucatan Author: Hernández-Flores, Alvaro The status of many sea cucumber fisheries in the world is overexploited. Some of the reasons are: an increase in demand from China, the distance of these fisheries to China, and the high rate of fisheries development. Most sea cucumber fisheries are small-scale with a simple management system. To overcome overexploitation, it is important to know the fisheries management systems. The research questions of this study are: What are the biological and economic factors that accelerate the development of these fisheries? What factors threaten the sustainability of these stocks? And what possible strategies could be implemented? With biological information of the species, fishermen behavior, and the economics, we developed a spatial dynamic bioeconomic model. The model explained the interactions between fishing effort allocation, quasi-profits and population depletion. Our results showed that the main factors that could lead the fishery to the collapse are: a) the spatial pattern, b) excess fishing capacity, c) high quasi-profits in the short term, d) density dependent catchability, and e) heavy density dependence of reproduction. Given the high prices, production, and low opportunity cost of fishers in tropical countries, they often prefer to maximize their short-term gains, regardless of long-term losses due to collapse. Ensuring sustainability requires community agreements and regulations like: minimum legal size, quotas, catch limit per trip, season closed to fishing and rotation of participants. Title: Modelling a Small-Scale Sea Cucumber Fishery in Yucatan Author: Hernández-Flores, Alvaro The status of many sea cucumber fisheries in the world is overexploited. Some of the reasons are: an increase in demand from China, the distance of these fisheries to China, and the high rate of fisheries development. Most sea cucumber fisheries are small-scale with a simple management system. To overcome overexploitation, it is important to know the fisheries management systems. The research questions of this study are: What are the biological and economic factors that accelerate the development of these fisheries? What factors threaten the sustainability of these stocks? And what possible strategies could be implemented? With biological information of the species, fishermen behavior, and the economics, we developed a spatial dynamic bioeconomic model. The model explained the interactions between fishing effort allocation, quasi-profits and population depletion. Our results showed that the main factors that could lead the fishery to the collapse are: a) the spatial pattern, b) excess fishing capacity, c) high quasi-profits in the short term, d) density dependent catchability, and e) heavy density dependence of reproduction. Given the high prices, production, and low opportunity cost of fishers in tropical countries, they often prefer to maximize their short-term gains, regardless of long-term losses due to collapse. Ensuring sustainability requires community agreements and regulations like: minimum legal size, quotas, catch limit per trip, season closed to fishing and rotation of participants. Close

• 24. [Article] At the Mercy of the Sea or Rational Profit-Speculators: Offshore Fishermen in Taiwan

  We investigated the own- and cross-price elasticity of supply (PES) of 20 fish and shellfish species, caught in mixed fisheries off southwestern Taiwan and serving the local fresh seafood market. Because ...

  Citation × Citation Citation Abstract Copy Title: At the Mercy of the Sea or Rational Profit-Speculators: Offshore Fishermen in Taiwan Author: Shaw, Daigee, Heino, Mikko, Liu, Xiaozi We investigated the own- and cross-price elasticity of supply (PES) of 20 fish and shellfish species, caught in mixed fisheries off southwestern Taiwan and serving the local fresh seafood market. Because the licensed fishermen face little regulation constraining their behavior, we hypothesize that they adjust their catch profiles so as to maximize the expected value of their catch, instead of fishing indiscriminately at the mercy of the elements. However, because catches are auctioned after the landing, fishermen face uncertain price. Using daily data from 2001--2015, we found that price-taking fishermen are capable to respond to price changes of 17 of the 20 species by shifting the catch profile. The species with the highest PES are those corresponding to the highest revenues, and the fishermen are the most price elastic during the season when the catches are highest. Input substitution effect and by-catch effect offset each other, leading to weak and mostly insignificant cross-PES for most of the species. Weather conditions such as wave height, wind speed and wind direction do not appear to affect fishermen's targeting decisions for most of the 20 species, but they do affect fishermen's exit decision, i.e., going fishing or not. Title: At the Mercy of the Sea or Rational Profit-Speculators: Offshore Fishermen in Taiwan Author: Shaw, Daigee, Heino, Mikko, Liu, Xiaozi We investigated the own- and cross-price elasticity of supply (PES) of 20 fish and shellfish species, caught in mixed fisheries off southwestern Taiwan and serving the local fresh seafood market. Because the licensed fishermen face little regulation constraining their behavior, we hypothesize that they adjust their catch profiles so as to maximize the expected value of their catch, instead of fishing indiscriminately at the mercy of the elements. However, because catches are auctioned after the landing, fishermen face uncertain price. Using daily data from 2001--2015, we found that price-taking fishermen are capable to respond to price changes of 17 of the 20 species by shifting the catch profile. The species with the highest PES are those corresponding to the highest revenues, and the fishermen are the most price elastic during the season when the catches are highest. Input substitution effect and by-catch effect offset each other, leading to weak and mostly insignificant cross-PES for most of the species. Weather conditions such as wave height, wind speed and wind direction do not appear to affect fishermen's targeting decisions for most of the 20 species, but they do affect fishermen's exit decision, i.e., going fishing or not. Close

• 25. [Article] Deterring Poaching from a Common Pool: Experimental Evidence from TURFs in Chile

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: Deterring Poaching from a Common Pool: Experimental Evidence from TURFs in Chile Author: Stranlund, John, Murphy, Jim, Chavez, Carlos Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: Deterring Poaching from a Common Pool: Experimental Evidence from TURFs in Chile Author: Stranlund, John, Murphy, Jim, Chavez, Carlos Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 26. [Article] The Icelandic Pelagic Sector and its Development under an ITQ Management System

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: The Icelandic Pelagic Sector and its Development under an ITQ Management System Author: Saevaldsson, Hordur, Gunnlaugsson, Stefan B. Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: The Icelandic Pelagic Sector and its Development under an ITQ Management System Author: Saevaldsson, Hordur, Gunnlaugsson, Stefan B. Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 27. [Article] Adapting the Norwegian King Crab Management to Market Demands - Success or Failure?

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: Adapting the Norwegian King Crab Management to Market Demands - Success or Failure? Author: Nøstvold, Bjørg, Kvalvik, Ingrid, Young, James A., Voldnes, Gøril Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: Adapting the Norwegian King Crab Management to Market Demands - Success or Failure? Author: Nøstvold, Bjørg, Kvalvik, Ingrid, Young, James A., Voldnes, Gøril Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 28. [Article] The Economic Geography of Scallop Fishing: Concentration and Competition in the Ocean

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: The Economic Geography of Scallop Fishing: Concentration and Competition in the Ocean Author: DePiper, Geret, Benjamin, Sharon, Carr-Harris, Andrew, Speir, Cameron, Lee, Min-Yang Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: The Economic Geography of Scallop Fishing: Concentration and Competition in the Ocean Author: DePiper, Geret, Benjamin, Sharon, Carr-Harris, Andrew, Speir, Cameron, Lee, Min-Yang Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 29. [Article] Mitigating Marine Mammal Bycatch: Technological and Economic Efficiency

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: Mitigating Marine Mammal Bycatch: Technological and Economic Efficiency Author: Ballance, Lisa, Lent, Rebecca Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: Mitigating Marine Mammal Bycatch: Technological and Economic Efficiency Author: Ballance, Lisa, Lent, Rebecca Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close

• 30. [Article] Balancing Carrots and Sticks for Fisheries Management: The Case of Hilsa Management in Bangladesh

  Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, ...

  Citation × Citation Citation Abstract Copy Title: Balancing Carrots and Sticks for Fisheries Management: The Case of Hilsa Management in Bangladesh Author: Mohammed, Essam Yassin Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Title: Balancing Carrots and Sticks for Fisheries Management: The Case of Hilsa Management in Bangladesh Author: Mohammed, Essam Yassin Year: 2016 Suggested Bibliographic Reference: Challenging New Frontiers in the Global Seafood Sector: Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 11-15, 2016. Compiled by Stefani J. Evers and Ann L. Shriver. International Institute of Fisheries Economics and Trade (IIFET), Corvallis, 2016. Close