期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 48, 期 4, 页码 2150-2156出版社
AMER CHEMICAL SOC
DOI: 10.1021/es4043098
关键词
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资金
- Environmental Protection Agency Great Lakes Restoration Initiative, NOAA Center for Sponsored Coastal Ocean Research [NA09NOS4780192, NA10NOS4780218]
Recently, authors have theorized that invasive species prevention is more cost-effective than control in protecting ecosystem services. However, quantification of the effectiveness of prevention is rare because experiments at field scales are expensive or infeasible. We therefore used structured expert judgment to quantify the efficacy of 17 proposed strategies to prevent Asian carp invasion of the Laurentian Great Lakes via the hydrologic connection between the Mississippi and Great Lakes watersheds. Performance-weighted expert estimates indicated that hydrologic separation would prevent 99% (95,100; median, 5th and 95th percentiles) of Asian carp access, while electric and acoustic-bubble-strobe barriers would prevent 92% (85,95) and 92% (75,95), respectively. For all other strategies, estimated effectiveness was lower, with greater uncertainty. When potential invasions by other taxa are considered, the effectiveness of hydrologic separation increases relative to strategies that are effective primarily for fishes. These results could help guide invasive species management in many waterways globally.
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