TN00182 SPINY RIVER SNAIL IO FLUVIALIS
| Result | Management Action | ||
| Adverse | Creating impoundments | ||
| Adverse | Timber harvesting - clearcutting | ||
| Adverse | Surface mining | ||
| Adverse | Underground mining | ||
| Beneficial | Controlling pollution [thermal, chemical, physical] | ||
| Beneficial | Other management practices [specified in comments] |
| References/Result | Reference Numbers |
| Adverse | 9286 |
| Beneficial | 9286 |
Comments on Management Practices
The present population in the Powell River, Lee County, may be threatened by oil and gas exploration, and by coal mining impacts on water quality and the river substratum. Coal mining wastes from coal washing facilities and run-off from active and abandoned stripmines in the headwaters of the Powell appear to have adversely affected downstream habitats. High coliform levels from inadiquate sewagw treatment in the North Fork Powell River are of general concern to suitable water quality. A mussel die-off in the Powell River in 1983 likely affected all species; dead spiny river snails were observed, but only in the Tennessee portion of the Powell. The Clinch river population was reduced by toxic discharges and spills at Carbo, Virginia, prior to 1972. A chemical plant located on the North Fork Holston River near Saltville, Virginia, literally destroyed the molluscan fauna in the lower 80 miles of the river. Efforts to expedite recolonization of spiny river snails into previously impacted river reaches has proven successful in the North Fork Holston, but other recovering streams within its historic range need to be examined for possible transplant sites in order to secure the viability of the species *9286*. SOME ATTEMPTS TO CONTROL THE EFFLUENTS IN THE AREA OF THE REMAINING POPULATIONS SHOULD BE MADE THE POSSIBILITY OF TRANSPLANTING INTO SOME OF ITS FORMER RANGE MIGHT BE CONSIDERED *TN5587*