Upper Midwest Environmental Sciences Center
Position title: Fishery Biologist
1995 M.S., Fisheries Management, Ohio State University
1990 B.S., Ecology, Ethology & Evolution, University of Illinois
My primary responsibility is planning and leading data collection activities. I organize, process and analyze study data, including side scan sonar imagery and geospatial data. I assist with study planning and manuscript preparation. I also captain the USGS river trawling vessel, R/V E.D. Cope.
Gutreuter, S., J.M. Vallazza, and B.C. Knights. 2006. Persistent disturbance by commercial navigation alters the relative abundance of channel-dwelling fishes in a large river. Canadian Journal of Fisheries and Aquatic Sciences 63:2418-2433.
Ickes, B. S., J.M. Vallazza, J. Kalas, and B.C. Knights. 2005. River floodplain connectivity and lateral fish passage: A literature review. U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, 25 p.
Knights, B.C., J.M. Vallazza, S.J. Zigler, and M.R. Dewey. 2002. Habitat and movement of lake sturgeon Acipenser fluvescens in the upper Mississippi River system, USA. Transactions of the American Fisheries Society 131:507-522.
Gutreuter, S. and J. M. Vallazza. 2002. Improved estimation of entrainment mortality of adult fish caused by towboats on the Upper Mississippi River and Illinois Waterway. Upper Mississippi River– Illinois Waterway System Navigation Study. Report to the U.S. Army Corps of Engineers, Rock Island District. 54 pp.
Managing pathways of biological production of large rivers
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