A rare and little-studied species, much of the blue shiner’s biology is, as yet, undescribed. However, like many other related species, the blue shiner is believed to feed on a variety of terrestrial insects floating on the water surface, often foraging around river margins with overhanging vegetation. This species has a relatively prolonged breeding period, from early May through late August, suggesting females produce multiple clutches each season (5). In common with other shiners, males probably attract mates by defending territories and using courtship displays, with spawning taking place in a cavity in submerged wood (4) (5). The juvenile fish grow to reach maturity at around two years of age, and have a lifespan of three years (2) (4).