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Clair River, individuals primarily used pathways alternative to navigation channels. Consistent with these predictions, acoustic-tagged Lake Sturgeon in the more-channelized lower Detroit River selected the higher-flow and deeper navigation channels over alternative migration pathways, whereas in the less-channelized lower St. Under the assumption that Lake Sturgeon navigate by following primary flow paths, acoustic-tagged Lake Sturgeon in the more-channelized lower Detroit River were expected to choose navigation channels over alternative pathways and to exhibit greater selection for navigation channels than conspecifics in the less-channelized lower St. Acoustic telemetry was used to quantify Lake Sturgeon movements. alternative pathways in two multi-channel rivers differentially affected by channelization, but free of barriers to sturgeon movement. To address this question, we quantified and compared Lake Sturgeon selection for navigation channels vs. In this study, we investigated whether altered flow distributions and bathymetry associated with channelization attracted migrating Lake Sturgeon ( Acipenser fulvescens) into commercial navigation channels, potentially increasing their exposure to ship strikes. Krueger, Conceptualization, Funding acquisition, Supervision, Writing – original draft, Writing – review & editing 7Ĭhannelization for navigation and flood control has altered the hydrology and bathymetry of many large rivers with unknown consequences for fish species that undergo riverine migrations. Kessel, Writing – review & editing, 6 and Charles C. Drouin, Conceptualization, Writing – original draft, 5 Steven T. Wills, Conceptualization, Investigation, Writing – review & editing, 4 Richard G. Thomas, Investigation, Writing – review & editing, 4, ¤ Todd C. Chiotti, Conceptualization, Investigation, Writing – review & editing, 3 Michael V. Boase, Conceptualization, Investigation, Writing – review & editing, 3 Justin A. Holbrook, Conceptualization, Data curation, Writing – original draft, Writing – review & editing, 2 James C. Roseman, Conceptualization, Writing – review & editing, 1 Christopher M. Bennion, Visualization, Writing – review & editing, 1 Edward F. Hondorp, Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing, 1, * David H.
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