Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Dan Dembkowski

Research Publications

  • Dembkowski, D.J., D.A. Isermann, and R.P. Koenigs. 2019. Potential for improving among‐reader precision and accuracy of walleye age estimates with minimal training. North American Journal of Fisheries Management DOI: 10.1002/nafm.10293.
  • Madenjian, C.P., D. Dembkowski, D. Isermann, S. Batterman, S. Chernyak, S. Cogswell, M. Holey. 2019. Absence of PCB hot spot effect in walleye Sander vitreus from Lower Green Bay of Lake Michigan. Archives of Environmental Contamination and Toxicology
  • Dembkowski, D.A., D.A. Isermann, S.R. Hogler, W.A. Larson, and K.N. Turnquist. 2018. Stock structure, dynamics, demographics, and movements of walleyes spawning in four tributaries to Green Bay. Journal of Great Lakes Research.
  • Dembkowski, D.J., D.A. Isermann, and R.P. Koenigs. 2017. Walleye age estimation using otoliths and dorsal spines: preparation techniques and sampling guidelines based on sex and total length. Journal of Fish and Wildlife Management 8:474-486. doi:10.3996/052017-JFWM-038

Current Staff

Federal Staff: 2

Masters Students: 10

Phd Students: 0

Post Docs: 0

University Staff: 6

5 Year Summary

Students graduated: 12

Scientific Publications: 32

Presentations: 114


Contact Us

Wisconsin Cooperative Fishery Research Unit Stevens Point, WI 54481-3897 Phone: (715) 346 - 2178 Fax: (715) 346 - 3624 Our University Web Site

Unit Leader

Dan Isermann
Unit Leader Dan Isermann

I serve as Unit Leader of the Wisconsin Cooperative Fishery Research Unit. I earned my degrees from Southern Illinois University (BS), Tennessee Tech University (MS), and South Dakota State University (PhD). Before my employment with USGS, I was an assistant professor of fisheries at the University of Wisconsin-Stevens Point and worked as a fisheries biologist and research scientist with the Ohio Division of Wildlife and the Minnesota DNR.


  1. University of Wisconsin-Stevens Point
  2. UW-Stevens Point College of Natural Resources

Wisconsin Cooperative Fishery Research Unit Cooperators

  1. U.S. Geological Survey
  2. University of Wisconsin-Stevens Point
  3. Wisconsin Department of Natural Resources