Indicators for Ecosystem Externalities in Fishing Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/r781wh19h

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • 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.
Resource Type
Date Available
Date Issued
Citation
  • Ravn-Jonsen, Lars, Ken H. Andersen and Niels Vestergaard. 2015. Indicators for Ecosystem Externalities in Fishing. In: Proceedings of the Eighth Biennial Forum of the North American Association of Fisheries Economists, May 20-22, 2015, Ketchikan, Alaska: Economic Sustainability, Fishing Communities and Working Waterfronts. Compiled by Ann L. Shriver and Melissa Errend. North American Association of Fisheries Economists, Corvallis, Oregon, USA, 2015.
Conference Name
Keyword
Subject
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Susan Gilmont(susan.gilmont@orst.edu) on 2015-11-02T17:07:04Z (GMT) No. of bitstreams: 1 Ravn Jonsen NAAFE 2015.pdf: 527105 bytes, checksum: 5b1854e1f063d54d4af42e2e708ee8e0 (MD5)
  • description.provenance : Submitted by Melissa Errend (melissa.errend@gmail.com) on 2015-10-30T19:52:08Z No. of bitstreams: 1 Ravn Jonsen NAAFE 2015.pdf: 527105 bytes, checksum: 5b1854e1f063d54d4af42e2e708ee8e0 (MD5)
  • description.provenance : Made available in DSpace on 2015-11-02T17:07:04Z (GMT). No. of bitstreams: 1 Ravn Jonsen NAAFE 2015.pdf: 527105 bytes, checksum: 5b1854e1f063d54d4af42e2e708ee8e0 (MD5) Previous issue date: 2015-05

Relationships

In Administrative Set:
Last modified: 07/17/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items