Author: Lemoine, Young, Mckelvey, Eby, Pilgrim & Schwartz, 2014
Comments: Common to abundant in cool to cold tributaries with cobble and gravel bottoms.  Sympatric with <i>Oncorhynchus clarkii</i> and <i>Salvelinus confluentus</i> throughout its distribution, with <i>Cottus rhotheus</i> in Idaho, and with<i>Cottus cognatu</i> in Montana (Ref. 94998).