Filters: Tags: {"type":"Environment Attributes","name":"aquatic"} (X) > Categories: Project (X) > Types: Map Service (X)
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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: Aquatic,
Aquatic species propagation,
Bank stabilization/erosion control,
Broadleaf,
Conservation easement,
Background information.— The Powell and Clinch Rivers provide vital habitat for many forms of wildlife and are inhabited by one of the world’s richest and most diverse assemblages of freshwater mussels (U.S. Fish and Wildlife Service, 2003). The rivers are also multiple-use recreation areas and a valuable water source that supplies water for the residents of Lee County, Virginia. The Lone Mountain coal slurry spill released sediment and hazardous substances affecting water quality and impacting 12 Federally listed mussels and critical habitat for 2 Federally listed fish. Fish and mussel habitat depends on the riparian habitats surrounding the river. In order to recover lost fish and mussel habitat, the Lone Mountain...
Background information. Settlement funds from the California Gulch Superfund site have been used to improve instream aquatic habitat and increase brown trout (Salmo trutta) populations in the Arkansas River. The upper Arkansas River Basin is a high-elevation mountain river that supports trout populations. Historically characterized by a relatively narrow channel with fast moving water, recent degradation of the upper Arkansas River due to historic land-use practices have contributed to an altered river channel and a decrease in important habitat features for trout, such as deep-water pools. This restoration project was designed to address three major issues: bank erosion, altered river channel morphology, and degraded...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Amphibians,
Aquatic,
Bank stabilization/erosion control,
Colorado,
Colorado Mountain College,
Background information.— The Lone Mountain slurry spill injured two endangered fish species in the Powell River—the yellowfin madtom ( Noturus flavipinnis) and the slender chub ( Erimystax cahni). The yellowfin madtom was historically widespread throughout the Upper Tennessee River drainage but was presumed extinct at the time of its formal scientific description. The discovery of three surviving but geographically isolated populations in the late 1970s and early 1980s resulted in its listing as a threatened species. The slender chub was also once relatively common in the Powell River but is now listed as one of the most narrowly distributed minnows in North America. Both the yellowfin madtom and the slender chub...
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...
Migrating shorebirds and waterfowl are so dependent on the food supply and stopover estuary habitat in the lower Coquille River that Congress established Bandon Marsh National Wildlife Refuge (OR) in 1983. Through congressionally approved expansion, acquisition, and donation, the Refuge now encompasses 889 acres and is composed of two units: Bandon Marsh and Ni-les'tun (named by the Coquille Tribe and pronounced NYE-les-ton, which means People by the small fish dam). Historically, Ni-les’tun was a diverse tidal wetland like Bandon Marsh but was diked and drained for agricultural purposes beginning in the mid to late 1800s. Restoring 418 acres of the tidal marsh has required FWS and its many partners to collaborate...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Amphibians,
Aquatic,
Birds,
Built/replaced/repaired (e.g., buildings, boat ramps, trails),
Channelization,
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