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Brook Trout Restoration and Expansion
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This project will restore and improve stream and riparian habitat within a 2,357 foot project area located in the headwaters of Garth Run which was severely impacted by catastrophic flooding that occurred in 1995.
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Projects
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Assessment and Restoration of Southern Appalachian Brook Trout
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This project will complete an assessment of brook trout in-stream habitat, water quality, and fish distribution information in all Jocassee Gorges streams during the first two years of the project.
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Projects
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Freshwater Mussels of the Powell River, Virginia and Tennessee: Abundance and Distribution in a Biodiversity Hotspot
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Historically, the Powell River had a diverse freshwater mussel fauna of 46 species. Various surveys conducted over the past century have recorded a decline in mussel densities and diversity throughout much of the river, due to historical and on-going anthropogenic impacts. In 2008 and 2009, random timed-search, systematic search, and quadrat sampling of 21 sites were completed to document species richness, relative abundance, density, and size-class structure of resident mussel populations. We recorded 19 species from 18 sites, including 5 endangered species during quadrat sampling efforts. he mussel fauna of the lower Powell River continues to represent one of the most diverse in the United States. Outside of the Powell River, only 2 or 3 populations remain for most of the listed species extant in the river. Given these qualities, the Powell River deserves recognition as a location for focused conservation efforts to protect its diverse mussel assemblage.
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General Resources Holdings
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Riparian Restoration to Promote Climate Change Resilience in Eastern U.S. Streams
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Provision of shade via riparian restoration is a well-established management adaptation strategy to mitigate against temperature increases in streams. Effective use of this strategy depends upon accurately identifying vulnerable, unforested riparian areas in priority coldwater stream habitats. An innovative riparian planting and restoration decision support tool is now available to the conservation community. This user-friendly tool allows managers and decision-makers to rapidly identify and prioritize areas along the banks of rivers, streams, and lakes for restoration, making these ecosystems more resilient to disturbance and future changes in climate.
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Research
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Riparian Restoration
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A Stream Classification System for the Appalachian Landscape Conservation Cooperative
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Unifying state-based stream classifications into a single consistent system, principal investigators at The Nature Conservancy developed a hierarchical classification system and map for stream and river systems for the Appalachian LCC that represents the region’s natural flowing-water aquatic habitats. This river classification information is needed to develop and implement instream flow standards and management recommendations so that environmental flows can become integral to all water management decisions from the onset.
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Research
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Full Proposal - A Web-Based Tool for Riparian Restoration Prioritization to Promote Climate Change Resilience (RPCCR) in Eastern U.S. Streams
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The RPCCR is a web-based tool currently under development which is designed to allow managers to rapidly identify high-priority riparian restoration targets. The objective of this project is to complete development of the RPCCR, link it with the Appalachian LCC website, and integrate it with ongoing stream temperature monitoring and modeling efforts within the Northeast Climate Science Center (NECSC) and participating Landscape Conservation Cooperatives.
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Riparian Restoration Team
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Background Project and Member Information
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Thomas, Richard Neil
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Expertise Search
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Curran, Joanna
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Expertise Search
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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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Full Proposal - A Stream Classification System for the Appalachian Landscape Conservation Cooperative
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The goal of this project is to develop a hierarchical classification for stream and river systems within the Appalachian Landscape Conservation Cooperative (LCC). This classification system will identify and consistently map ecologically similar types of rivers and streams using a flexible hierarchical set of geomorphic and hydrologic variables deemed appropriate for classification by the participating states and relevant to the spatial scale of management.
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Aquatic Habitat Stream Classification Team
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Background Project and Member Information
