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Stream at Clinch Mountain Wildlife Management Area
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Upstream view of stream at the Clinch Mountain Wildlife Management Area.
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TRB Images
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Stream Baseflow Index
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Average annual stream baseflow index at 1 kilometer resolution throughout the Appalachian LCC region.
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Gallery: Cave and Karst Maps
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Study Overview Maps and Foundational Datasets
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Stream channel geomorphology influences mussel abundance in southern Appalachian streams, U.S.A.
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We quantified freshwater mussel abundance and species richness and their physical habitat at 24 sites in eight streams in southern Appalachian catchments in 2000 and 2001. In addition, we modelled site-specific hydraulic parameters during summer baseflow and bankfull stages to estimate high- and low-discharge conditions, respectively.
Mussel abundance was related to stream geomorphology, whereas richness was related to stream size. Baseflow habitat parameters explained only minor variation in abundance or richness, and both measures were highly correlated with mean current velocity or stream size. Bankfull shear stress composed a relatively low proportion of overall mussel habitat variability, but it accounted for significant variation in abundance and richness. Mussel abundance was highly variable at sites subject to low-shear stress during spates, whereas abundance always was low at sites subject to high-shear stress. These data suggest that habitat conditions during floods, rather than those at summer baseflow, limit the abundance of mussels in Appalachian streams. These data also suggest that mussel abundance and assemblage structure may be sensitive to any changes in channel geomorphology and hydraulic conditions that might result from land use in the catchment.
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General Resources Holdings
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Stream Restoration Challenge Kicks Off with Spring Plantings
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This spring, more than 2,000 students from across Maryland got an early start on their Earth Day contributions, planting trees to improve water quality through Governor Martin O’Malley’s Stream Restoration Challenge. The program ─ which is still accepting proposals ─ provides grants for students and groups to carry out projects to improve Chesapeake Bay water quality through service learning and environmental education activities.
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News & Events
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Tennessee Aquarium Conservation Institute - Freshwater Biodiversity
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The warm waters of the southeastern United States are home to an amazing diversity of animals and habitats. The Tennessee Aquarium Conservation Institute (TNACI) works to protect and sustain the region's natural treasures and bring people of all ages closer to nature. Help us celebrate and care for these riches in our backyards.
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Videos and Webinars
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The Barn Group Land Trust
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TBG preserves, protects, and maintains streams, wetlands, and natural resources to increase stewardship and conservation for present and future generations.
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Organizations Search
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The Last Dragons - Protecting Appalachia's Hellbenders
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An intimate glimpse at North America's Eastern Hellbender, an ancient salamander that lives as much in myth as in reality.... and in many waters, myths are all that remain of these sentinel stream-dwellers. Video by Freshwaters Illustrated.
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Thomas, Richard Neil
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TN Wild Side - Brook Trout Restoration
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The Southern Appalachian Brook Trout is small... so small in fact that a trophy fish is only nine inches long. This beautiful fish, vibrant with shimmery, bright colors is considered a prize catch, largely because the brook trout is a rare and elusive resident of Tennessee waters. It's the only trout native to our state and the Tennessee Wildlife Resources Agency and others are trying to make sure it doesn't disappear. Wild Side Guide Alan Griggs takes us to the Cherokee National Forest near Tellico Plains, where some young brook trout are returning home after nearly being wiped out in their mountain habitat.
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TN Wild Side - Buffalo Run
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We've all seen the pictures and heard the thrilling stories of the great buffalo stampedes of the old West. Those involved the massive, furry, four-legged critters that once dominated the Great Plains. But the Buffalo we're talking about today swim in Tellico Reservoir except for a few days in early April each year. That's when thousands of buffalo fish make their spawning runs into nearby Citico Creek. The dark-colored fish quickly turn the creek into a frenzy of splashing water. The fishing's not bad either, as Wild Side Guide Alan Griggs shows us.
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