Targeted sampling for silver shiner (Notropis photogenis) in the Saugeen River, Ontario, 2021 / by Jason Barnucz, Robin C. Gáspárdy, Julia E. Colm, and D. Andrew R. Drake.: Fs97-13/1359E-PDF

"In July 2021, Fisheries and Oceans Canada conducted targeted sampling to better understand the distribution of Silver Shiner (Notropis photogenis; SARA-listed as Threatened) in the Saugeen River watershed, Ontario. Twenty-six sites (consisting of 78 seine hauls) were sampled in the Saugeen River (n = 18 sites) and North Saugeen River (n = 8 sites), with fishes collected using three passes of a 9.1 m bag seine. Twenty-two species (2,745 individuals) were captured, with Notropis sp., Rosyface Shiner (Notropis rubellus), Common Shiner (Luxilus cornutus), White Sucker (Catostomus commersonii) and Luxilus sp. being the most abundant species based on pooled abundance. Altogether, 105 Silver Shiner were captured (27 – 61 mm total length), with 101 captured from ten sites on the Saugeen River from Walkerton to Paisley and four captured from a single site on the North Saugeen near Lockerby. Fish community and habitat results are presented for both the Saugeen River and North Saugeen River. Results reaffirm the occurrence of Silver Shiner in the Saugeen watershed and may be useful to inform the spatial extent of critical habitat for the species"--Abstract, page vi.

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