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U.S. Demand for Imported Farmed Salmon in the Face of Science Regarding PCB Contamination

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  • A debate about the level of organic contaminants in farmed salmon relative to wild salmon was started with an article published the journal Science in January 2004. Concentrations of polychlorinated biphenyls (PCBs) and other contaminants were found to be significantly higher in farmed salmon than in wild salmon. Moreover, European-raised salmon were found to have significantly greater contaminant levels than those raised in North and South America. This paper evaluates the impacts of the publicized information regarding contaminants in farmed salmon on U.S. demand for imported fresh farmed Atlantic salmon by using newspaper articles index as proxy for information (Tiesl, Roe & Hicks 2002; Wessells, Miller & Brooks 1995). A two-stage demand model is developed using monthly import data (from January 1998 to December 2005). In the first stage, total import demand for fresh farmed salmon from all countries is estimated to determine the total impact, if any, of the dissemination of the results of this study. The second stage is system of import demand equations by source (Chile, U.K. Norway, Eastern Canada, Western Canada and Other) to determine if there were any substitution effects between source countries due to different level of contaminants of different countries. Evidence is found for the existence of seasonal factors, short run media effects and substitutes of imports among source countries. Implications for the international farmed salmon industry are discussed.
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  • Roheim, Cathy and Sha Sha. 2006. U.S. Demand for Imported Farmed Salmon in the Face of Science Regarding PCB Contamination. In: Proceedings of the Thirteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 11-14, 2006, Portsmouth, UK: Rebuilding Fisheries in an Uncertain Environment. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2006. CD ROM. ISBN 0-9763432-3-1
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  • The National Oceanic & Atmospheric Administration Marine Fisheries Service, United States Department of Commerce (NOAA Fisheries); United Kingdom Department for Environment, Food and Rural Affairs (DEFRA); The United States Agency for International Development supported Aquaculture Collaborative Research and Support Program (ACRSP).
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