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.
Proceedings of the Eighteenth Biennial Conference of the International Institute of Fisheries Economics and Trade, held July 11-15, 2016 at Aberdeen Exhibition and Conference Center (AECC), Aberdeen, Scotland, UK.
The presentation summarizes preliminary results of the first part in the PhD project “Economic valuation of the wild salmon stock in Norway”. The externalities from the salmon farming industry, such as spread of parasites and genetic pollution, affect wild salmon populations. The aquaculture management in Norway faces a trade-off between production growth and negative environmental effects. The objective of the project is to valuate this trade-off in order to provide decision-makers with better information. Our bio-economic model estimates how much of aquaculture output value the economy receives as compensation in return for the decline in a wild fish stock and its environmental services. Here, the modelling process demonstrates the importance of incorporating biological knowledge in environmental economics research, especially where it involves externalities. Concepts and data from fish population dynamics, salmon biology, technology of fish farming and fisheries ecology are merged with production data and the economic view on value as willingness to accept compensation for the forgone ecosystem quality. Challenges of the transdisciplinary approach, such as methodological differences are discussed. The results of panel data analysis so far reveal unexpectedly high level of compensation: about 50 tons of farmed salmon can be produced at the expense of only one individual fish decline in the wild population following year. The preliminary model, however, will be improved. By combining research findings and methods from different fields, we are able to produce more reliable and comprehensive information for better environmental policy.