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Building Sustainable Solutions to the Issue of Ballast Water Treatment: Testing Relationships Between Propagule Pressure and Colonization Success of Invasive Species

During the past century the use of ballast water by commercial ships   has inadvertently created a highly efficient, global transfer   mechanism for non-native species. In an effort to eliminate ballast   water as a viable vector, the U.S. Congress passed and reauthorized   legislation in the 199 s that requires vessels to manage their   ballast water in one of two ways. Ships are required either to   carryout Ballast Water Exchange (BWE) by flushing ballast tanks in   the open ocean or to perform Ballast Water Treatment (BWT) by   proactive decontamination. There has been no systematic evaluation   of the relationships between permissible post-treatment   concentration limits (propagule pressure) and the colonization   success of non-native species.     This project evaluates the quantitative relationship between the   size and frequency of founding populations of zooplankton and their   colonization success. Experiments will be conducted in land-based   mesocosms. Associated surveys of the density and diversity of   zooplankton in the Duluth-Superior Harbor will define the natural   communities used to seed mesocosms. Coupling the survey results with   information on ship traffic and ballast discharge (volume, port of   origin) will provide an in-situ test of the relationship between   propagule pressure and colonization success of zooplankton in the   Duluth-Superior Harbor.    (ballast water); (ballast ship); (ballast ships); (ballast tank);   (ballast tanks); (AIS); (aquatic invasive species); (ANS); (aquatic   nuisance species); (exotic species); (invasive species); (plankton);   (zooplankton); (Lake Superior); (Ballast Water Exchange); (BWE);   (Ballast Water Treatment); (BWT)

Status
In progress
Type
Project
Start Date
End Date
Researchers
Donn BranstratorPrincipal Investigator
Associated with 4 projects
Agencies

Funding 4 projects for a total of $144,000.00
Scope of Study
Field Investigation
Scale of Phenomena
Landscape
Organism
Population
Impact of Pollutants
Exotic Species
Land Use and Habitat
Shoreline
Lake Basin Connecting Channels
Lake Superior
State Province
Minnesota
Resource Being Monitored
Plankton / Microorganisms
Beneficial Use Impairment Assessments
Degradation of Phytoplankton or Zooplankton Populations
Socio-economic Consideration and Analysis
Shipping and Navigation
Annex Numbers
Research & Development
Review of Pollution from Shipping Sources
Annex 17
Impact of water quality and AIS on fish and wildlife populations and habitats
General
Monitoring
Annex
  • Annex Numbers
    Annex Numbers
    Research & Development
    Review of Pollution from Shipping Sources
  • Annex 17
    Annex 17
    Impact of water quality and AIS on fish and wildlife populations and habitats

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Great Lakes - St. Lawrence Region.