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A Quantitative Approach to Determine Cardiovascular and Neurodevelopment Risks and Benfits from Methylmercury and Omega 3 Fatty Acids in Fish Consumed in  the Columbia River Basin

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  • Background: Fish are an important part of a well-balanced diet as it contains high quality proteins, as well as polyunsaturated fatty acids that are known to play an important role in human health. Consumption of fish, however, is the primary route of exposure to methylmercury in humans. A quantitative risk-benefit analysis was conducted with fish consumed in the Columbia River Basin, an area that is home to numerous fishing populations, including subsistence anglers and various cultural practices around fish. Methods: We apply Ginsberg and Toal's (2009) quantitative risk-benefit approach to analyze risks of methylmercury and benefits of omega-3 fatty acids for nine different fish species found in the Columbia River Basin. Results: The concentrations of methylmercury found in each fish species sampled varied by region and by species. In general, mountain whitefish and rainbow trout provided a net benefit in terms of both cardiovascular risk and neurodevelopmental across all consumption rates in all subregions in which they were sampled. Conclusions: Species that provide a net benefit for cardiovascular risk in one region may not have the same benefits in other regions and may not necessarily provide an improvement in neurodevelopment within the same region. These findings highlight the importance of careful and clear communication of information regarding fish consumption and care needs to be given to ensure that the correct information will be interpreted by the consumer.
  • 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.
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  • 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.
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  • 0976343290

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