Freshwater mussel timed-search surveys at historically sampled sites in the Grand River and Thames River watersheds, Ontario, 2021 / by Margaret N. Goguen, Kelly A. McNichols-O'Rourke, and Todd J. Morris. : Fs97-13/1352E-PDF

"In 2021, Fisheries and Oceans Canada (DFO) surveyed 42 sites across the Grand River watershed and 8 sites in Thames River watershed to collect current information on the distribution and abundance of freshwater mussel communities. Each site was surveyed by a three-person crew for 4.5 personhours using the qualitative timed-search method. In the Grand River watershed, a total of 2,898 live individuals representing 24 species were found including 264 SAR individuals of 6 species. In the Thames River watershed, 2,049 live individuals representing 21 species were found including 173 SAR individuals of 7 species. These data will provide current information for species assessments by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) and contribute to meeting short- and longterm recovery objectives for SAR"--Abstract.

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publications.gc.ca/pub?id=9.908640&sl=1

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