Mississippi River Team
The Wisconsin DNR Mississippi River Team is responsible for managing the natural resources along the Mississippi River in cooperation with the U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service – Upper Mississippi River National Wildlife and Fish Refuge, Environmental Protection Agency (EPA) and the states of Minnesota and Iowa. Due to the nature of the Upper Mississippi River Navigation system we also have partnerships with the states of Illinois and Missouri.
This interdisciplinary team has expertise in fish, aquatic vegetation, wildlife, water quality, freshwater mussels, and Mississippi River habitat.
Mississippi River Contacts

Because the Mississippi River Team is responsible for 230 miles of river along the western border of Wisconsin, there are offices located in Alma, La Crosse, and Prairie du Chien. In addition, the Long Term Resource Monitoring Program office for Wisconsin is located at a separate facility in La Crosse, WI.
Mississippi River Team Leader:
Gretchen Benjamin
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608-785-9982 |
Mississippi River Planner:
Jim Fischer |
608-785-9004 |
Mississippi River Water Quality Specialist:
John Sullivan |
608-785-9995 |
Mississippi River Wildlife Biologist:
Mark Anderson |
608-785-9984 |
Wildlife Technician:
John Nelson |
608-785-9987 |
Mississippi River Fisheries Supervisor:
Ron Benjamin |
608-785-9012 |
Alma Fisheries Biologist:
Brian Brecka |
608-685-6221 |
Alma Fisheries Technician:
Michelle Marron
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608-685-6221 |
La Crosse Fisheries Biologist:
David Heath |
608-785-9993 |
La Crosse Fisheries Technician:
Ken Von Ruden |
608-785-9988 |
Prairie du Chien Fisheries Biologist:
Patrick Short |
608-326-8818 |
Mississippi River Habitat Specialist:
Jeff Janvrin |
608-785-9005 |
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Long-Term Resource Monitoring Program Located at DNR's Field Station |
Team Leader:
Terry Dukerschein |
608-781-6360 |
Fisheries Specialist:
Andrew Bartels |
608-781-6361 |
Fisheries Technician:
vacant |
608-781-6367 |
Vegetation Specialist:
Heidi Langrehr |
608-781-6362 |
Water Quality Specialist:
Shawn Giblin |
608-781-6363 |
Water Quality Technician:
Kraig Hoff |
608-781-6368 |
Contact Us
To find out more about the Upper Mississippi River you may contact us by phone or click on a name to reach us by email . If you have a question or comment about a web page, please describe the page by its title and/or its web address (URL). If you have a request for more information please focus on a specific question. Your questions are important to us and we will reply as quickly
as possible.
Last Revised: October 30, 2007
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