George, Anna L.; Shaw, Joey
Schorr, Mark S.
College of Arts and Sciences
University of Tennessee at Chattanooga
Place of Publication
The southeastern United States has a rich geologic history that contributed to the evolution of an extremely diverse aquatic fauna throughout the region. The Flame Chub, Hemitremia flammea, is a brightly colored, spring endemic minnow species native to the Cumberland, Tennessee, and Coosa river drainages. In this study, the cytochrome-b gene region was analyzed for 230 individuals from 29 populations across the three drainages. Results from maximum parsimony and Bayesian analyses recovered shallow divergence between the 31 haplotypes. AMOVA analyses indicated that most gene tic variation distributed within and between populations, not between drainages. Based on these results, this species may not be restricted to spring habitats as was originally presumed and can move within river systems and likely even between drainages. Further analyses using microsatellites and geospatial modeling would refine these results. Species like H. flammea are indicators of the health of groundwater resources that are under increasing anthropogenic pressure.
M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.
Minnows -- Tennessee
xi, 72 leaves
Alford, Kathlina Frances, "Conservation genetics and population status of the Flame Chub, Hemitremia Flammea" (2013). Masters Theses and Doctoral Dissertations.
Dept. of Biological and Environmental Sciences