Proceedings of the regional science peer review of impacts of dredging on fish species at risk in the lower Great Lakes basin : November 28, 2014, Burlington, ON / chairperson and editor: Lynn Bouvier.: Fs70-4/2015-011E-PDF

Annual dredging is a crucial aspect of the maintenance of safe and navigable waterways along the Lake St. Clair shoreline; however, there are concerns that the dredging activities may have an impact on fish species listed under the federal Species at Risk Act (SARA), whether directly (e.g., mortality of individuals) or indirectly (e.g., reduction in the amount of suitable habitat). Additionally, the impact of dredgeate disposal on species at risk in Lake St. Clair is currently unknown. A peer-review meeting was held at the Canadian Centre for Inland Waters, Burlington, Ontario, and via WebEx/Teleconference on 28 November 2014. The purpose of the meeting, as described in the Terms of Reference was to: 1. Determine whether fish species at risk are currently present at dredging and spoil deposition sites where they were known to exist historically; 2. Determine if fish species at risk are directly or indirectly being affected by the dredging activities both at the dredging and spoil deposition sites; 3. Review the potential use of fish salvage as a mitigation strategy; and, 4. Review whether there are alternatives to annual dredging activities or mitigation measures that would reduce the impacts on fish species at risk and their habitat.

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