REPORT FOR: Preliminary Analysis for Identification, Distribution, and Conservation Status of Species of Fusconaia and Pleurobema in Arkansas Principle Investigators: Alan D. Christian Department of Biological Sciences, Arkansas State University, P.O. Box 599, State University, Arkansas 72467;
[email protected]; Phone: (870)972-3082; Fax: (870)972-2638 John L. Harris Department of Biological Sciences, Arkansas State University, P.O. Box 599, State University, Arkansas 72467 Jeanne Serb Department of Ecology, Evolution, and Organismal Biology, Iowa State University, 251 Bessey Hall, Ames, Iowa 50011 Graduate Research Assistant: David M. Hayes, Department of Environmental Science, P.O. Box 847, State University, Arkansas 72467:
[email protected] Kentaro Inoue, Department of Environmental Science, P.O. Box 847, State University, Arkansas 72467:
[email protected] Submitted to: William R. Posey Malacologist and Commercial Fisheries Biologist, AGFC P.O. Box 6740 Perrytown, Arkansas 71801 April 2008 EXECUTIVE SUMMARY There are currently 13 species of Fusconaia and 32 species of Pleurobema recognized in the United States and Canada. Twelve species of Pleurobema and two species of Fusconaia are listed as Threatened or Endangered. There are 75 recognized species of Unionidae in Arkansas; however this number may be much higher due to the presence of cryptic species, many which may reside within the Fusconaia /Pleurobema complex. Currently, three species of Fusconaia and three species of Pleurobema are recognized from Arkansas. The true conservation status of species within these genera cannot be determined until the taxonomic identity of populations is confirmed. The purpose of this study was to begin preliminary analysis of the species composition of Fusconaia and Pleurobema in Arkansas and to determine the phylogeographic relationships within these genera through mitochondrial DNA sequencing and conchological analysis.