Inhabit rubble and gravel riffles (sometimes runs and pools) of fast creeks and small to medium rivers; also in rocky shores of lakes (Ref. 5723). Young up to 4 months are pelagic (Ref. 1998). Form schools (Ref. 1998). Feed on mayflies, blackflies, and midges (Ref. 1998). Spawn over pits in loose gravel substrate (Ref. 51972). Widely used as bait in the USA (Ref. 1998). Artificially propagated in Minnesota, USA in long narrow ponds having weak water flow (Ref. 1998).
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