An Ecological-Economic Model on the Effects of Interactions between Escaped Farmed and Wild Salmon (Salmo salar)

Anders Skonhoft (), Yajie Liu (), Ola H. Diserud and Kjetil Hindar

Working Paper Series from Department of Economics, Norwegian University of Science and Technology

Abstract: This paper explores the ecological and economic impacts of interactions between escaped farmed and wild Atlantic salmon (Salmo salar, Salmonidae) over generations. An age- and stage-structured bioeconomic model is developed. The biological part of the model includes age-specific life history traits such as survival rates, fecundity, and spawning successes for wild and escaped farmed salmon, as well as their hybrids, while the economic part takes account of use and non-use values of fish stock. The model is simulated under three scenarios using data from the Atlantic salmon fishery and salmon farming in Norway. The social welfare are derived from harvest and wild salmon while the economic benefits of fishing comprise both sea and river fisheries. The results reveal that the wild salmon stock is gradually replaced by salmon with farmed origin, while the total social welfare and economic benefit decline, although not at the same rate as the wild salmon stock.

Pages: 36 pages
Date: 2011-10-07
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.svt.ntnu.no/iso/WP/2011/12_ecological.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nst:samfok:12111

Access Statistics for this paper

More papers in Working Paper Series from Department of Economics, Norwegian University of Science and Technology Contact information at EDIRC.
Bibliographic data for series maintained by Anne Larsen ().