Proceedings 2023/044
Proceedings of the Regional Peer Review of the Recovery Potential Assessment for Purple Wartyback (Cyclonaias tuberculata); October 25-27, 2022
Chairperson: Lynn Bouvier
Editors: Ashley Watt, Maja Cvetkovic, and Jenn Diment
Summary
A regional Canadian Science Advisory Secretariat peer-review meeting was held virtually on October 25–27, 2022 via Microsoft Teams. The purpose of this meeting was to assess the recovery potential of Purple Wartyback (Cyclonaias tuberculata) in Canada, by providing advice that may be used for the listing decisions under the Species at Risk Act (SARA), development of a recovery strategy and action plan, and to support decision making with regards to the issuance of permits or agreements. Participants included Fisheries and Oceans Canada (DFO), Environment and Climate Change Canada, the Ontario Ministry of Natural Resources and Forestry (OMNRF), Ausable Bayfield Conservation Authority, Lower Thames Valley Conservation Authority, St. Clair Region Conservation Authority, and academic experts.
Purple Wartyback was assessed as Threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) in May 2021. This designation was due to the species’ small and restricted range, being known from only three rivers in Ontario (Ausable, Sydenham, and Thames rivers), and it was extirpated from two historically occupied areas (Detroit River and western Lake Erie). In addition, pollution sources such as agriculture and urbanization, climate change (droughts), aquatic invasive species, and dredging activities are all contributing to the decline of habitat quality. Purple wartyback is not currently listed under SARA.
This proceedings document summarizes the relevant discussions from the peer-review meeting and presents revisions to be made to the associated draft Research Documents. The Proceedings, Science Advisory Report and the supporting Research Documents resulting from this science advisory meeting will be published on the DFO Canadian Science Advisory Secretariat Website.
Accessibility Notice
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