Detailed project information for Study Plan Number 05001

Branch :	Restoration Technologies Branch
Study Plan Number :	05001
Study Title :	New methods for control of zebra mussels and Asian clams: effect of carbon dioxide and gas supersaturation on stress and survivorship
Starting Date :	01/01/1998
Completion Date :	08/01/2002
Principal Investigator(s) :	Watten, Barnaby; Blazer, Vicki; Villella, Rita & Densmore, Christine
Primary PI :	Watten, Barnaby
Telephone Number :	(304) 724-4425
Email Address :	barnaby_watten@usgs.gov
SIS Number :	5002119
Primary Program Element :	Invasive Species
Second Program Element :	Fish and Aquatic Habitats
Status :	Active
Abstract :	Zebra mussels (Dreissena polymorpha) and Asian clams (corbicula fluminea) are major macro fouling species of water intake structures used in municipal potable water, agricultural, industrial and power station raw water systems. The flow of water through the intakes carries with it a continuous source of food and oxygen for the organisms and carries away their wastes while the structures themselves protect the mussels from predation and environmental conditions such as storm wave activity and scouring by ice. Hence the presence of the mussels and clams not only leads to reduced water pumping capacity but also can act as a seed source for downstream reaches of the water course involved. Control typically involves manual scraping and use of either thermal treatment or biocides. Asian clams are found in 36 of the contiguous states of the United States as well as in Hawaii. Control of this species has been estimated in 1986 to cost the U.S. power industry alone, per year, over one billion dollars.
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