USGS - science for a changing world

Upper Midwest Environmental Sciences Center

Sue SchleisSusan M. Schleis

Position title: Biologist

Phone: 608.781.6304
Fax: 608.783.6066

1993, B.A., Biology, Silver Lake College, Manitowoc, Wisconsin

Primary Responsibilities/Activities:
As a biologist in the Aquatic Ecosystems Health branch, my research projects primarily support the effort to gain US Food and Drug Administration (FDA) approval of drugs used in aquaculture. My focus has been in the areas of target animal safety, tissue residue depletion, and drug efficacy. However, I also participate in studies that investigate the environmental fate of various drugs and chemicals, lend assistance to the Invasive Species work group, and provide back-up in our Fish Culture facility.

Research Interests:

Active Projects:

Select Publications:
Gaikowski, M.P., M. Mushtaq, P. Cassidy, J.R. Meinertz, S.M. Schleis, D. Sweeney, and R.G. Endris. 2010. Depletion of florfenicol amine, marker residue of florfenicol, from the edible fillet of tilapia (Oreochromis niloticus x O. niloticus and O. niloticus  x O. aureus) following florfenicol administration in feed. Aquaculture. 301:1-6.

Rach, J.J., A. Johnson, J.B. Rudacille, and S.M. Schleis. 2008. Efficacy of oxytetracycline hydrochloride bath immersion to control external columnaris disease on walleye and channel catfish fingerlings. North American Journal of Aquaculture. 70:459-465.

Rach J.J., T. M. Schreier, S. M. Schleis, and M. P. Gaikowski.  2005.  Efficacy of Hydrogen Peroxide and Formalin to Control Mortality Associated with Saprolegniasis Infections on Channel Catfish.  Journal of North American Aquaculture.  65:300-305.

Gaikowski, M.P., J.C. Wolf, S.M. Schleis, and W.H. Gingerich.  2003.  Safety of oxytetracycline (Terramycin, TM-100F) administered in feed to hybrid striped bass, walleye, and yellow perch.  Journal of Aquatic Animal Health.  15:274-286.

Rach, J.J., S.M. Schleis,  M.P. Gaikowski, and A. Johnson.  2003.  Efficacy of hydrogen peroxide in controlling mortality associated with external columnaris on walleye and channel catfish fingerlings.  North American Journal of Aquaculture.  65:300-305.


Impacts of Human Contaminants

Aquatic Invasive Species

Return to Staff Directory red arrow

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: January 29, 2016