North Saskatchewan River Drainage Fish Sustainability Index Data Gaps
Alberta Environment and Park’s Fish Sustainability Index is a standardized process of assessment that provides a landscape-level overview of fish sustainability within the province and enables broad-scale evaluation of management actions and land-use planning. Priority species for assessment in our sample area include bull trout and mountain whitefish. Bull trout is a native sport species classed as Threatened in Alberta and is particularly sensitive to habitat change. In the summer of 2017, we used backpack and tote-barge electrofishing gear to sample 52 sites randomly distributed throughout the Blackstone River, Brown Creek, Chungo Creek, Devil Forks, Thistle Creek, and Wapiabi Creek. We captured 701 fish, including 308 bull trout and 235 mountain whitefish in the sampling area. Our catch was dominated by bull trout, which was also the most widely distributed species. Bull trout and mountain whitefish had the highest catch rates in Thistle Creek and the Blackstone River, respectively. Our study provides land-use managers with information on fish species distribution and abundance that is necessary to minimize land use impacts to fish, evaluate bull trout status, and otherwise balance the diverse values of the North Saskatchewan River watershed.
Alberta Environment and Parks, Hinton Wood Products – A Division of West Fraser Mills Ltd.
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|North Saskatchewan River Drainage Fish Sustainability Index Data Gaps||2015-2016||1|
|North Saskatchewan River Drainage Fish Sustainability Index Data Gaps||2017-2018||1|