Home > Explore Data & Reports > Ship-borne Nonindigenous Species Diminish Great Lakes Ecosystem Services

Citation:

Rothlisberger, J.D., D.C. Finnoff, R.M. Cooke, and D.M. Lodge. 2012. Ship-borne Nonindigenous Species Diminish Great Lakes Ecosystem Services. Ecosystems, 15:462-476. https://doi.org/10.1007/s10021-012-9522-6

Data/Report Type:

Sponsored Research

Description

We used structured expert judgment and economic analysis to quantify annual impacts on ecosystem services in the Great Lakes, North America of nonindigenous aquatic species introduced by ocean-going ships. For the US waters, median damages aggregated across multiple ecosystem services were Open image in new window 138 million per year, and there is a 5% chance that for sportfishing alone losses exceeded Open image in new window 800 million annually. Plausible scenarios of future damages in the US waters alone were similar in magnitude to the binational benefits of ocean-going shipping in the Great Lakes, suggesting more serious consideration is warranted for policy options to reduce the risk of future invasions via the St. Lawrence Seaway.

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