Skip to main content
USGS - science for a changing world
Advanced Search

Filters: Tags: Habitat-based (X)

2 results (7ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
Background information.—Historically, the Powell River supported abundant and diverse populations of freshwater mussels. In recent decades, mussel density and species richness have declined and many freshwater mussel species are listed as either State or Federally threatened or endangered species. Environmental degradation from coal mining has been identified as one of the drivers of this decline. An example is the 1996 Lone Mountain slurry spill that directly affected mussel populations, as well as their host fish species. Freshwater mussels feed by filtering small particles from water, thereby improving water quality and providing an essential ecosystem service in rivers and streams. Mussels also serve as a food...
Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hazardous substances (CERCLA) and hazardous materials (RCRA), U.S. Fish and Wildlife Service, State threatened or endangered species, Virginia Tech Freshwater Mollusk Conservation Center, Aquatic species propagation, All tags...
thumbnail
Background information.—The Powell River watershed has a long history of coal mining. Prior to August 3, 1977, Virginia laws and regulations required the reclamation of areas affected by coal surface mining, but there were no regulations addressing reclamation of underground mines. Flows or seeps from these abandoned mines have long degraded the waters of the Powell River watershed (U.S. Department of Agriculture, 2008). Water that is discharged from these sites can be highly acidic and it commonly contains high concentrations of dissolved iron and aluminum sulfates. This acid mine drainage degrades the water quality of streams and water supplies and is a major contributor to aquatic habitat degradation. Led by...
Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hazardous substances (CERCLA) and hazardous materials (RCRA), Daniel Boone Soil and Water Conservation District, Barren/rock, Waste/impaired for organismal life, Upper Tennessee River Roundtable, All tags...


    map background search result map search result map Lone Mountain NRDAR Fresh Water Mussel Restoration Lone Mountain NRDAR Acid Mine Drainage Restoration Lone Mountain NRDAR Fresh Water Mussel Restoration Lone Mountain NRDAR Acid Mine Drainage Restoration