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Map of Listed, Proposed, and Candidate Fish and Mussels in the UTRB
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Map depicting the number of listed, proposed, and candidate fish and mussel species within each 12-digit HUC within the Upper Tennessee River Basin. Occurrences include extant and historical records. Areas within the UTRB boundary not shaded by a color in the key have no records of imperiled fish and mussel species occurrences.
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Maps
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Plan for the Population Restoration and Conservation of Imperiled Freshwater Mollusks of the Cumberland Region
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The goal of this Plan is to provide a framework for the restoration of freshwater mollusk resources and their ecological functions to appropriate reaches of the Cumberlandian Region through the reintroduction, augmentation (R/A) and controlled propagation of priority mollusks. The Plan prioritizes propagation and R/A activities for Region mollusks and provides guidelines for resource managers and recovery partners. The Plan is not a legal document and is not intended to replace or supersede published recovery plans for listed mollusks.
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Reports & Documents
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Population Performance Criteria to Evaluate Reintroduction and Recovery of Two Endangered Mussel Species, Epioblasma brevidens and Epioblasma capsaeformis
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Genetic and demographic modeling of two endangered mussel species, Epioblasma brevidens and E. capsaeformis, in the Clinch River, U.S.A., was conducted to determine quantitative criteria to evaluate performance of extant and reintroduced populations. Reintroduction modelling indicated that the initial population size created during a 5 year build-up phase greatly affected final population size at 25 years, being similar to the population size at the end of the build-up phase, especially when population growth rate was low. Excluding age 0 individuals, age 1 juveniles or recruits on average comprised approximately 11% and 15% of a stable population of each species, respectively. Age-class distribution of a stable or growing population was characterized by multiple cohorts, including juvenile recruits, sub-adults, and adults. Because of current barriers to dispersal and the low dispersal capability of some mussel species, reintroductions will play a prominent role in restoring populations in the United States.
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Reports & Documents
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Mussel Infestation Outreach Event
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Mussel outreach event in which children are assisting a biologist to release host fish that were recently infested with mussel larvae.
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Resources
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TRB Images
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Copper Creek In-Stream Habitat Restoration Project
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This project improved riparian zones, water quality, appropriate sediment flows and restoring physical habitat for multiple listed aquatic species in the Copper Creek watershed, within the Upper Tennessee River Basin. (Photo: The low water bridge that was removed and replaced with a new bridge that spans the river. )
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Projects
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SARP
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Cumberland - Southern Appalachian Climate Change Vulnerability Species Assessments
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These results are a compilation of climate change vulnerability assessments in the southeastern portion of the LCC, covering the area from southern West Virginia, south to Alabama, west to eastern Kentucky and Tennessee. Hyperlinks to additional information are separated into two additional spreadsheets, one for aquatic and subterranean, and another for terrestrial species.
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Research
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Assessing Vulnerability of Species and Habitats to Large-scale Impacts
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Vulnerability Assessment Foundational Data by Subregion
