My primary research interest is stream fish ecology, with an emphasis on water pollution issues and population/community ecology. Graduate and undergraduate students working in my laboratory have conducted research to address the following problems: 1) influence of coal mine drainage on stream water chemistry, habitat, and aquatic macrofauna (macroinvertebrates, fishes, salamanders) in the Cumberland Plateau; 2) landscape-stream relationships that involve watershed land use, riparian buffers, limnological parameters, and macrofaunal assemblages in Ridge and Valley catchments; 3) localized effects of road culverts on in stream habitat and fish assemblages in Blue Ridge catchments; 4) lotic macrofaunal responses to stream restoration projects (artificial pools/riffles, constructed channels); and 5) historical and contemporary patterns in the distribution and abundance of the introduced redbreast sunfish (Lepomis auritus) and native congeneric sunfishes (Lepomis spp.; Centrarchidae) in reservoirs in the Tennessee River drainage.
Schorr MS (2012). Post-stream restoration assessments for Citico Creek and Friar Branch. City of Chattanooga, Department of Public Works, Stormwater Management, $42,079.
Schorr, MS, Wilson TP (2005-2006). Assessments of water quality, habitat, and aquatic macrofauna in a Cumberland Plateau stream: a geographic information system (GIS) approach. National Biological Information Infrastructure - Southern Appalachian Information Node (This project was a component of a larger project, “University of Tennessee Core Tasks for the NBII SAIN Node”; principal investigators: H. Spratt, G. Litchford, D. Aborn, T. Wilson, and M. Schorr total budget: $132,545.
Schorr MS, Nelson CH, Fritz D, Johnson P (1997-2000). Investigation of the effects of watershed land use on water quality and aquatic biota in urban streams in Chattanooga, Tennessee. City of Chattanooga, Department of Public Works, Stormwater Management Section, $150,300 (four grants).
Schorr MS, Nelson CH, Litchford RG (1997). Evaluation of the adequacy of constructed wetlands to improve limnological conditions and restore native fish assemblages in streams impacted by acid mine drainage in the North Chickamauga Creek watershed, Tennessee. Tennessee Wildlife Resources Agency, $17,000.
Schorr MS, Nelson CH, Litchford RG (1997). Evaluation of the adequacy of constructed wetlands to improve limnological conditions and native fish assemblages in streams impacted by acid mine drainage in the North Chickamauga Creek Watershed, Tennessee. National Fish and Wildlife Foundation, Washington, D.C., $12,000.
* denotes undergraduate student ** denotes graduate student
Schorr M.S., Dyson M.C.*, Nelson C.H., Van Horn G.S., Collins D.E., Richards SM. 2013. Effects of stream acidification on lotic salamander assemblages in a coal-mined watershed in the Cumberland Plateau. Journal of Freshwater Ecology 28(3):339-353.
Cookson N.**, Schorr M.S. 2009. Correlations of watershed housing density with environmental conditions and fish assemblages in a Ridge and Valley stream. Journal of Freshwater Ecology 24:553-561.
Conley, J.M.**, M.S. Schorr, M.L. Hanson, S.J. Symes, S.R. Richards. 2009. Is ambient chitobiase activity a monitoring
tool for impacts on secondary production in lotic systems? Canadian Journal of Fisheries
and Aquatic Sciences 66:1-9.
Schorr, M.S. and J.C. Baker.** 2006. Localized effects of coal mine drainage on fish assemblages in a Cumberland Plateau stream in Tennessee. Journal of Freshwater Ecology 21:17-24.
Long, J** and M.S. Schorr. 2005. Effects of watershed urban land use on environmental conditions and fish assemblages in Chattanooga area streams (Tennessee-Georgia). Journal of Freshwater Ecology 20:527-537.
Freeman, P** and M.S. Schorr. 2004. Influence of watershed urbanization on fine sediment and macroinvertebrate assemblage characteristics in Tennessee Ridge and Valley streams. Journal of Freshwater Ecology 19:353-362.
Matthews, W.J., M.S. Schorr, and M.R. Meador. 1996. Effects of experimentally enhanced flows on fishes of a small Texas (U.S.A.) stream: assessing the impact of inter-basin water transfer. Freshwater Biology 35:349-362.
Schorr, M.S., J. Sah, D.F. Schreiner, M.R. Meador, and L.G. Hill. 1995. Regional economic impact assessment of the Lake Texoma striped bass fishery. Fisheries 20(5):14-18.
Schorr, M.S., M.R. Meador, and L.G. Hill. 1995. Incidental catch of sport fish in cast nets used to collect baitfish in Lake Texoma (Oklahoma-Texas). North American Journal of Fisheries Management 15:142-147.
Schorr, M.S., R. Altig, and W.J. Diehl. 1990. Populational changes of the enteric protozoans, Opalinaspp. and Nyctotherus cordiformis, during the ontogeny of anuran tadpoles. Journal of Protozoology 37(6):479-481.
Schorr, M.S., and L.E. Miranda. 1989. Catch of white crappie in trap nets in relation to soak time and abundance. Proceedings of the 43rd Annual Conference Southeastern Association of Fish and Wildlife Agencies 43:198-205.