▁the ▁Green ▁River , ▁the ▁fre ck le bel ly ▁d arter ▁occurs ▁primarily ▁up stream ▁of ▁the ▁confl u ence ▁of ▁the ▁Little ▁Bar ren ▁and ▁Green ▁rivers . ▁In ▁the ▁Bar ren ▁River , ▁it ▁is ▁most ▁common ▁up stream ▁of ▁the ▁confl u ence ▁of ▁D rak es ▁Creek ▁and ▁the ▁Bar ren ▁River . ▁The ▁fre ck le bel ly ▁d arter ▁is ▁restricted ▁to ▁large ▁trib ut aries ▁in ▁Tennessee , ▁primarily ▁of ▁the ▁Bar ren ▁River ▁system ▁in ▁Clay , ▁Ma con , ▁and ▁Sum ner ▁count ies . ▁There ▁is ▁an ▁old ▁record ▁from ▁the ▁N olin ▁River ▁system , ▁where ▁the ▁species ▁no ▁longer ▁occurs . ▁The ▁fre ck le bel ly ▁d arter ▁as ▁well ▁as ▁most ▁other ▁d arter ▁species ▁in ▁the ▁area ▁are ▁vulner able ▁to ▁dec imation ▁through ▁perturb ations ▁such ▁as ▁strip ▁min ing ; ▁stream ▁channel ization ▁projects ▁threaten ▁available ▁habitat ▁in ▁Tennessee . ▁It ▁is ▁believed ▁that ▁these ▁factors ▁as ▁well ▁as ▁the ▁dam ming ▁of ▁natural ▁river ▁systems ▁may ▁have ▁ext ir p ated ▁the ▁species ▁from ▁other ▁areas ▁in ▁the ▁sout heast . ▁Non - native ▁In vas ive ▁fish ▁species ▁could ▁also ▁be ▁a ▁cause ▁of ▁limited ▁distribution . ▁ ▁E col ogy ▁The ▁fre ck le bel ly ▁d arter ▁is ▁a ▁b enth ic ▁fish ▁which ▁ ▁inhab its ▁quiet ▁water ▁areas , ▁especially ▁flow ing ▁po ols , ▁back water ▁po ols , ▁and ▁veget ated ▁r iff le ▁marg ins ▁of