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Environmental Sciences

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University of Tennessee at Chattanooga

Theses/Dissertations

2002

Stream ecology

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Effects Of Acid Mine Drainage On Limnological Conditions And Fish Assemblages In The Cumberland Plateau Region Of The North Chickamauga Creek System, Tennessee, Jennifer Copeland Backer Dec 2002

Effects Of Acid Mine Drainage On Limnological Conditions And Fish Assemblages In The Cumberland Plateau Region Of The North Chickamauga Creek System, Tennessee, Jennifer Copeland Backer

Masters Theses and Doctoral Dissertations

Acid mine drainage (AMD) is the primary water pollution problem in Appalachian streams. The Cumberland Plateau (Southwestern Appalachians ecoregion) portion of North Chickamauga Creek (NCC), a fourth-order tributary to the Tennessee River (Tennessee), has been impacted by decades of AMD from active and abandoned coal mines. I assessed stream characteristics at 19 sites in the Cumberland Plateau region of the NCC system; these data were used to create a GIS database. Limnological conditions and fish assemblage attributes were compared between AMD-impacted and reference sites. Relationships were examined among water quality, habitat, and fish assemblage variables. Stream pH averaged lower at …


Effect Of Riparian Land Use On The Biotic Integrity Of Fish Assemblages In Black Creek, Chattanooga, Tennessee, Jerri Leigh Phillips Dec 2002

Effect Of Riparian Land Use On The Biotic Integrity Of Fish Assemblages In Black Creek, Chattanooga, Tennessee, Jerri Leigh Phillips

Masters Theses and Doctoral Dissertations

Black Creek is a third-order Ridge and Valley stream (Tennessee River drainage) in Chattanooga, Tennessee. Most ofBlack Creek's watershed is forested (ca. 71% in 1991 ). However, increasing urban development, particularly along the riparian landscapes, could impact the stream's ecological health. I assessed fish assemblages (biotic integrity), water quality, instream habitat, and riparian land-use features at eight sites in Black Creek, May-June 2000. Water quality conditions (temperature, dissolved oxygen, pH, conductivity) were favorable for stream fishes, but some level of habitat degradation (bank erosion, sedimentation, loss of riparian vegetation) was observed at all sites. Electrofishing samples yielded a total of29 …