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• 11. [Article] Indicators for Ecosystem Externalities in Fishing

  Ecosystem externalities arise when one use of an ecosystem affects its other uses through the production functions of the ecosystem. We use simulations from a size-spectrum ecosystem model to investigate ...

  Citation × Citation Citation Abstract Copy Title: Indicators for Ecosystem Externalities in Fishing Author: Andersen, Ken H., Vestergaard, Niels, Ravn-Jonsen, Lars Ecosystem externalities arise when one use of an ecosystem affects its other uses through the production functions of the ecosystem. We use simulations from a size-spectrum ecosystem model to investigate the ecosystem externality created by fishing of multiple species. The model is based upon general ecological principles and is calibrated to the North Sea. Two fleets are considered: a `forage fish’ fleet targeting species that mature at small sizes and a `large fish’ fleet targeting large piscivorous species. Based on the marginal analysis of the present value of the rent, we develop a benefit indicator that explicitly divides the consequences of fishing into internal and external benefits. This analysis demonstrates that the forage fish fleet has a notable economic impact on the large fish fleet, but the reverse is not true. The impact can be either negative or positive, which entails that for optimal economic exploitation, the forage fishery has to be adjusted according to the large fish fishery. With the present large fish fishery in the North Sea, the two fisheries are well adjusted; however, the present combined exploration level is too high to achieve optimal economic rents. Title: Indicators for Ecosystem Externalities in Fishing Author: Andersen, Ken H., Vestergaard, Niels, Ravn-Jonsen, Lars Ecosystem externalities arise when one use of an ecosystem affects its other uses through the production functions of the ecosystem. We use simulations from a size-spectrum ecosystem model to investigate the ecosystem externality created by fishing of multiple species. The model is based upon general ecological principles and is calibrated to the North Sea. Two fleets are considered: a `forage fish’ fleet targeting species that mature at small sizes and a `large fish’ fleet targeting large piscivorous species. Based on the marginal analysis of the present value of the rent, we develop a benefit indicator that explicitly divides the consequences of fishing into internal and external benefits. This analysis demonstrates that the forage fish fleet has a notable economic impact on the large fish fleet, but the reverse is not true. The impact can be either negative or positive, which entails that for optimal economic exploitation, the forage fishery has to be adjusted according to the large fish fishery. With the present large fish fishery in the North Sea, the two fisheries are well adjusted; however, the present combined exploration level is too high to achieve optimal economic rents. Close

• 12. [Article] Fisher's participation in development activities in the community with different level of co-management processes (case study in Demak and Pemalang, Central Java-Indonesia)

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Fisher's participation in development activities in the community with different level of co-management processes (case study in Demak and Pemalang, Central Java-Indonesia) Author: Susilowati, Indtah, Waridin Research Paper Title: Fisher's participation in development activities in the community with different level of co-management processes (case study in Demak and Pemalang, Central Java-Indonesia) Author: Susilowati, Indtah, Waridin Research Paper Close

• 13. [Article] Tac-study in tegal waters and its adjacent areas based on capture product and relation to socio-economic aspects towards responsible fisheries

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Tac-study in tegal waters and its adjacent areas based on capture product and relation to socio-economic aspects towards responsible fisheries Author: Triarso, Imam Research Paper Title: Tac-study in tegal waters and its adjacent areas based on capture product and relation to socio-economic aspects towards responsible fisheries Author: Triarso, Imam Research Paper Close

• 14. [Article] Environmental Tradeoffs Between Aquaculture and Capture Fisheries

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Environmental Tradeoffs Between Aquaculture and Capture Fisheries Author: Ahmed, Mahfuzuddin, Wada, Nikolas, Delgado, Christopher Research Paper Title: Environmental Tradeoffs Between Aquaculture and Capture Fisheries Author: Ahmed, Mahfuzuddin, Wada, Nikolas, Delgado, Christopher Research Paper Close

• 15. [Article] Sustainable Management Measures for Blue Swimming Crab (Portunus pelagicus) Fishery: A case study in Sikao District, Trang Province, Thailand

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Sustainable Management Measures for Blue Swimming Crab (Portunus pelagicus) Fishery: A case study in Sikao District, Trang Province, Thailand Author: Juntarashote, Kungwan, Nitiratsuwan, Thongchai Research Paper Title: Sustainable Management Measures for Blue Swimming Crab (Portunus pelagicus) Fishery: A case study in Sikao District, Trang Province, Thailand Author: Juntarashote, Kungwan, Nitiratsuwan, Thongchai Research Paper Close

• 16. [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

• 17. [Article] A New Approach to Fisheries Management in Western Australia

  Research Paper

  Citation × Citation Citation Abstract Copy Title: A New Approach to Fisheries Management in Western Australia Author: Brayfod, Heather Research Paper Title: A New Approach to Fisheries Management in Western Australia Author: Brayfod, Heather Research Paper Close

• 18. [Article] A Socio-economic Assessment on Sustainable Eco-tourism Development at Hsia-Liu-Chiu Island in Taiwan

  Research Paper

  Citation × Citation Citation Abstract Copy Title: A Socio-economic Assessment on Sustainable Eco-tourism Development at Hsia-Liu-Chiu Island in Taiwan Author: Hui-Ru, Huang, Chuang, Ching-Ta Research Paper Title: A Socio-economic Assessment on Sustainable Eco-tourism Development at Hsia-Liu-Chiu Island in Taiwan Author: Hui-Ru, Huang, Chuang, Ching-Ta Research Paper Close

• 19. [Article] Can Right-based Fisheries Management protect Coastal Sustainable Livelivehoods, the case of Ocean View, South Africa?

  Research paper

  Citation × Citation Citation Abstract Copy Title: Can Right-based Fisheries Management protect Coastal Sustainable Livelivehoods, the case of Ocean View, South Africa? Author: Isaacs, Moenieba Research paper Title: Can Right-based Fisheries Management protect Coastal Sustainable Livelivehoods, the case of Ocean View, South Africa? Author: Isaacs, Moenieba Research paper Close

• 20. [Article] Characterization of the Dry Tortugas Commercial Fishery: Methodology and Findings

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Characterization of the Dry Tortugas Commercial Fishery: Methodology and Findings Author: Leeworthy, Vernon R., Murray, Thomas J., Shivlani, Manoj Research Paper Title: Characterization of the Dry Tortugas Commercial Fishery: Methodology and Findings Author: Leeworthy, Vernon R., Murray, Thomas J., Shivlani, Manoj Research Paper Close