Economic impact of ballast-mediated invasive species in the Great Lakes

Major Goals and Objectives

  • Determine the ecological changes caused by nonindigenous species that were introduced and established in the Great Lakes via ship ballast discharges
  • Quantify the minimum net financial cost (based on market costs) imposed on
    the Great Lakes region by shipping-mediated nonindigenous species
  • Forecast the potential range in North America for a subset of high risk species
  • Assess how unquantified costs (for currently unstudied species, for market costs imposed outside the Great Lakes region, for non-market costs imposed within and outside the Great Lakes region) might change our evaluation of the net cost of the species and net value of shipping
  • Develop policy recommendations and an outreach strategy to inform the public and policy-makers as decisions are made about the management of ballast and the St. Lawrence Seaway

Research Information

Principal Investigator:
David Lodge
Initiation Date:
Completion Date:
University of Notre Dame


David Lodge
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