For a little more than 10 years, Conservation Fisheries has been working to re-establish spotfin chub into the Tellico River in eastern Tennessee. These spectacular, turquoise minnows (only the males develop this color and only during summertime spawning), are highly specialized and closely associated with clean, current swept, bedrock habitats. During spawning season, the males become very territorial and stake out crevices in the rocks where the females will ultimately deposit the eggs. While males vigorously defend these territories, they do not provide any direct care to the eggs and larvae. The spotfin chub is federally threatened.