Journal
JOURNAL OF GREAT LAKES RESEARCH
Volume 46, Issue 3, Pages 656-665Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jglr.2020.04.003
Keywords
Invasive species; Recreational fishing; Economic value
Funding
- Great Lakes Fishery Commission
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The impacts of aquatic invasive species (AIS) on the recreational fishery in the Laurentian Great Lakes are of concern to managers and policy makers. Some AIS have the potential to depress sportfish populations, reducing recreational fishing opportunities and damaging local economies. Alternatives that could reduce the threat of AIS could be costly. Assessments of how AIS could affect recreational fishing participation and the economic value derived from it would contribute to the evaluation of these alternatives. We assessed best-case and worst-case scenarios for how a range of AIS could affect recreational fishing participation and economic value. We utilized previously developed scenarios for how AIS could affect sport- fish populations as input for a recreational fishing model developed by Ready et al. (2018). Their model estimated chnges in fishing participation and economic value from such scenarios. Given uncertainty in how AIS could affect sport-fish, projected effects of AIS on economic value varied widely, with some scenarios likely to have minimal effects and others leading to losses of over $100 million annually. None of the scenarios would lead to a large percentage decrease in recreational fishing in the eight Great Lake states, largely because anglers have numerous inland fishing opportunities. Nevertheless, lakeshore communities dependent on Great Lakes fishing could still suffer considerable economic loss. Collectively the economic valuation of the range of scenarios narrows down the possible impacts on fishing and the economy that decision makers need to consider. (C) 2020 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.
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