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Invasive Species in a Globalized WorldEcological, Social, and Legal Perspectives on Policy$
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Reuben P. Keller, Marc W. Cadotte, and Glenn Sandiford

Print publication date: 2014

Print ISBN-13: 9780226166049

Published to Chicago Scholarship Online: May 2015

DOI: 10.7208/chicago/9780226166216.001.0001

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PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 17 September 2021

Pathways toward a Policy of Preventing New Great Lakes Invasions

Pathways toward a Policy of Preventing New Great Lakes Invasions

(p.356) Chapter Sixteen Pathways toward a Policy of Preventing New Great Lakes Invasions
Invasive Species in a Globalized World

Joel Brammeier

Thom Cmar

University of Chicago Press

We now have a good sense of the costs associated with the introduction and spread of aquatic invasive species in the Great Lakes and understand the risk of further invasions from different vectors. The most effective way to avoid those costs is through strategies that would prevent introduction and spread rather than attempt to mitigate the risk of harm from invasions following their introduction. Since the invasion of zebra mussels in the 1980’s it has been understood that vessels’ ballast water discharges are a significant vector for introduction of aquatic invasive species into the Great Lakes and for their spread throughout the region. Since Asian carp reached critical mass in the Lower Mississippi River Basin in the mid-1990s and began migrating north, we have anticipated the day when these species would threaten entry and establishment in the Great Lakes. Establishing a policy of prevention for any invasive species vector requires overcoming legal/regulatory, political, and practical obstacles to change.

Keywords:   invasive species, Great Lakes, shipping, ballast, Asian carp, Chicago Sanitary and Ship Canal, Chicago Area Waterway System, policy

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