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Welcome to the interactive web schedule for the 2019 Midwest Fish & Wildlife Conference! The schedule is subject to change (as of November 7, 2018). Please check back for updates. To return to the main Conference website, go to: www.midwestfw.org.

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Tuesday, January 29 • 11:40am - 12:00pm
(FISHERIES: LAKES & RESERVOIRS) Quantifying Fish Habitat Impairment in Iowa's Lakes and Reservoirs

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AUTHORS: Erin Haws, Iowa Department of Natural Resources ABSTRACT:  Freshwater ecosystems provide a diverse and extensive supply of resources to fauna and flora living within, to surrounding ecosystems, and human economies. As bodies of water evolve, so do the methods used to protect and restore them.  Over the past decade, emphasis on sustaining freshwater ecosystems has led to a large expansion in the development of protective policies and restoration programs aiming to improve aquatic habitat.  A recurring challenge to fish habitat restoration lies in defining impairment factors, their scale and the rate at which they are occurring in a system.  Comprehensive assessments are therefore needed to identify impairments, prioritize waterbodies in need of restoration, and provide improved methods to measure local fish habitat using feasible metrics. This study provides an expansive look into lake and reservoir fish habitat in Iowa based on a survey reporting on all significant publicly owned lakes recognized by the Iowa Department of Natural Resources (DNR).  The survey asked Iowa DNR Fisheries Biologists to report the degree of impairment of a set of variables for each individual waterbody in their management area.  Multivariate factors were classified using the methods of Krogman and Miranda (2016), characterizing twelve broad constructs of fish habitat impairment.  Study objectives include describing fish habitat impairment trends and identifying differences across lake type, watershed location, and status in the Lake Restoration Program.  Future research plans aim to quantify relationships between fish habitat impairment constructs and measured water quality, physical, and biological parameters within existing datasets to evaluate the resources available to adequately measure fish habitat.

Tuesday January 29, 2019 11:40am - 12:00pm
CENTER STREET ROOM C