“…The Mitchell Branch and Grassy Creek watersheds contain fish assemblages that are typical of streams with moderate impact, probably from industrial or urban discharges or poor habitat. The biological communities in the Bear Creek watershed are also impacted by prior waste disposal practices in its headwaters and current land uses (Southworth et al 1992;Hinzman 1996). The Bear Creek watershed, however, does support one rare fish species, the Tennessee dace (Phoxinus tennesseensis).…”