Shenandoah River - Environmental Issues

Environmental Issues

Since 2005, the Shenandoah River has experienced a series of fish kills every spring that have affected several of its native fish species. In 2005, redbreast sunfish and smallmouth bass along a 100-mile (160 km) stretch of the South Fork Shenandoah River began dying of lesions caused by bacteria and fungi. Although the fish kill eventually wiped out 80% of the adult redbreast sunfish and smallmouth bass, juvenile populations appeared to be unaffected. The following year more-localized fish kills in Clarke County spread to two of the Shenandoah's three species of sucker: the shorthead redhorse and the northern hogsucker – the former suffering from similar lesions witnessed in the previous year's fish kill. Virginia's Department of Environmental Quality received reports of fish kills near Elkton and between Bentonville and Front Royal in late April 2007 and observed fish exhibiting lesions and strange behavior.