Standardized field sampling method for monitoring the distribution and relative abundance of the Western Silvery Minnow (Hybognathus argyritis) population in Canada / by Camille J. Macnaughton, Tyana Rudolfsen,... : Fs97-6/3315E-PDF

"The Species at Risk Program’s objective for the Western Silvery Minnow (Hybognathus argyritis) is to quantify and maintain current population levels throughout its Canadian range. In an effort to provide science information to meet the Species at Risk (SAR) Program objective, this report aims to provide a consistent sampling method and survey design that may accurately inform on changes in the distribution and relative abundance of the Western Silvery Minnow in the Milk River system in Alberta, where it is listed as Threatened. This report details (1) the sampling gear, (2) recommended sampling effort and timing, and (3) sampling sites for Western Silvery Minnow occurrence and abundance. This standardized sampling protocol is intended to improve the monitoring of the species throughout its Canadian range, the assessment of population trends, and consequently allow for a better informed management of the species over time"--Abstract.

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