Distribution, habitat, and status of the gilt darter ( Percina evides) in Minnesota.

Gilt darters occurred only in the St. Croix River drainage in moderate to large rivers or near the mouths of large streams. In late spring, gilt darters were found most often in cobble raceways of moderate to swift current, where they later spawned. Young-of-the-year occupied this same habitat until early fall, when they and the adults moved to deep, swift chutes of rubble riffles to overwinter. Gilt darters tended to associate with the deeper, swifter portions of raceways and riffles, and were one of the most abundant riffle species encountered. The species appears to be highly intolerant of siltation.-from Fisheries Review