Abstract
Temperate hill-lands of the U.S.A. such as those in West Virginia are areas from which increasing output of farm-raised fish may be possible. However, the downstream economic impacts of current and projected future effluent as a result of aquaculture production have not been extensively studied. Using an externality framework and a combination of primary and secondary data, this study determines pollution prevention costs (PPC), and downstream pollution damage costs resulting from fish farm wastewater effluent measured as willingness to pay (WTP) for restoring water quality. PPC is estimated at $0.11 per kg of trout produced (which would add 6% to private production cost), and WTP is estimated at $0.49 per kg of trout produced (representing 25% of private production cost) at current production and price levels. This study shows that installation of filtration units is a low-cost (less than 6% of total cost) and an effective technology for controlling pollution at the source. Internalizing external costs (adding this 6% to private production costs) is one strategy that could contribute to sustainable growth of the aquaculture industry.
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Smearman, S.C., D'souza, G.E. & Norton, V.J. External Costs of Aquaculture Production in West Virginia. Environmental and Resource Economics 10, 167–175 (1997). https://doi.org/10.1023/A:1026473221396
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DOI: https://doi.org/10.1023/A:1026473221396