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| Assessment of Transoceanic NOBOB Vessels and Low-Salinity Ballast Water as Vectors for Nonindigenous Species Introductions to the Great Lakes |
| Status: |
Completed |
| Grantee: |
University of Michigan |
| Grant Amount: |
$1,123,000 |
| Award Date: |
December 15, 2000 |
| Contact: |
Thomas H. Johengen |
| Phone: |
734-764-2426 |
| E-mail: |
johengen@glerl.noaa.gov |
| Web: |
http://www.glerl.noaa.gov/res/Task_rpts/2001/nsreid10-1.html |
| Category: |
Biological Pollution |
| Origination: |
Special Initiative |
A multi-national project team led by the Cooperative Institute for Limnology and Ecosystem Research will perform a series of laboratory experiments and ride aboard ships during their transoceanic journeys to take samples and resolve two critical issues concerning the introduction of invasive species into the Great Lakes ecosystem via ships -- the risks posed by empty ballast tanks and the effectiveness of open sea ballast exchange. It is estimated that 75 to 95 percent of the vessels entering the Great Lakes declare "no ballast on board" (NOBOBs) and are exempt from regulations set to reduce the risk of exotic invasions. This project will provide: 1) the first scientifically-based characterization of the biological contents of ballast tanks in NOBOB ships, 2) the first evaluation of the impact of ballast management practices on the biological and sediment accumulation in NOBOB vessels, and 3) the first measurements of the effectiveness of open-sea ballast exchange. |
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