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News : What's Hot
Economic Risk Associated with Zebra and Quagga Mussels in the Columbia River Basin
July 21, 2010 -- The zebra mussel Dreissena polymorpha and quagga mussel Dreissena rostriformis bugensis, two species of invasive bivalve mollusks, pose an economic risk to the Columbia River Basin (the Basin), but there is a large range in the forecasts of potential economic costs. This report documents the potential economic implications of a widespread zebra or quagga mussel (mussel) infestation in the Basin. Read the full story to get the details.
"Total estimated capital costs for hydropower facilities, including fish passage facilities but no power losses, are over $8,800 per MW of nameplate capacity with about $160 O&M per MW capacity. For comparison, additional capital costs at Hoover Dam in the Colorado River Basin have been forecast to be $1,780 per MW. The Ontario Power Group estimated invasive mussel capital costs of $1,020 per MW and annual O&M costs of $50 per MW of generation capacity. This estimate is slightly different than a previous study that only estimated the costs to be a little over $1 million per year."
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The Stop Aquatic Hitchhikers web site is part of the ANS Task Force public
awareness campaign and is sponsored by the
U.S. Fish and Wildlife Service
and the U.S. Coast Guard.
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