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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 • 6:00pm - 9:00pm
(P47) Pre-Restoration Fishery and Macroinvertebrate Assessment of the River Rouge Area of Concern

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AUTHORS. James Beaubien, US Geological Survey; Jason Fischer, University of Toledo, Department of Environmental Sciences ; Robin DeBruyne, University of Toledo, Department of Environmental Sciences; Rose Ellison, US Environmental Protection Agency; Hal Harrington, US Army Corps of Engineers, Detroit District; Edward Roseman, US Geological Survey ABSTRACT. The River Rouge is located in southeastern Michigan and is a tributary to the Detroit River. The river and its watershed have been severely degraded resulting in a Great Lakes Area of Concern designation with beneficial use impairments for all biota and habitat. The lower reach contains 6.4 km of concrete river channel that is unsuitable habitat for game fish, sensitive macroinvertebrates, and other native fauna. The removal of this concrete channel will mitigate some beneficial use impairments (e.g., degradation of fish and wildlife populations, degradation of aesthetics, degradation of benthos, loss of fish and wildlife habitat) in the system, however establishment of baseline environmental conditions is needed prior to habitat restoration to measure the effectiveness of restoration efforts. We sampled fish and macroinvertebrate communities at 12 sample sites; 3 sites upriver of the concrete channel, 6 sites within the concrete channel, and 3 sites below the concrete channel. Boat electrofishing surveys across all sites indicated diversity among fish assemblages was low, dominated by emerald shiners (63% numerically) and only 16% game fish (e.g. Centrarchidae, northern pike, white bass). Benthic macroinvertebrate assemblages were sampled with colonization samplers (3 Hester-Dendy and 3 rock bags per site). Colonization samplers were set in June and September and allowed to soak for 30 days before being retrieved. Macroinvertebrates were identified to the lowest taxonomic classification and enumerated. Preliminary results indicate that the macroinvertebrate community composition was dominated by Chironomidae and Oligochaeta across all sites. These results provide baseline information on aquatic community structure to measure post-restoration community response to replacement of the concrete channel with natural river morphology. 

Tuesday January 29, 2019 6:00pm - 9:00pm
Superior Ballroom CD