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Todd J. Severson

Position title: Biologist

Email: tseverson@usgs.gov
Phone: 608.781.6216
Fax: 608.783.6066

Education: 
2009, B.S., Biology, University of Wisconsin – La Crosse

Primary Responsibilities/Activities:
My primary responsibility is to support the Aquatic Invasive Species research team. Recently, my work has focused on the development of chemical fishery management tools for controlling nuisance species. Research includes development of new oral delivery methods for targeting filter feeding aquatic invasive species such as Asian carps and zebra mussels. I also support the UMESC fish culturing facility and invasive species holding complex. On a daily basis, you may find me constructing and maintaining culture or exposure systems, performing water quality assays, assisting in the rearing of fish, or analyzing samples for a study.   

Active Projects:

• Determination of filtering characteristics and particle size selection between two species of native (Unionid) mussels and zebra mussels
• Determination of filtering characteristics and particle size selection of Asian (Hypophthalmichthys) carp.

Select Publications:
Meinertz, J. R., T. J. Newton, N. A. Schloesser, and T. J. Severson.  2010.  Evaluation of the toxicity of Silver Bullets 1000 to zebra mussel (Dreissena polymorpha).  Final report to the U.S. Fish and Wildlife Service’s Regional Director and Research Coordinator, and the USGS Regional Science Coordinator for Biology. 49 pp.

Links:

Aquatic Invasive Species

Development of Chemical Tools to Control Asian Carps and Dreissenid

Determination of filtering characteristics and particulate size selection between two species of Unionid and zebra mussels.

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