Research Interests

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.

 

Grants/Projects

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.

 

Publications

* denotes undergraduate student     ** denotes graduate student

Wolfe DN*, Schorr M, Hanson M, Nelson CH, Richards SM. 2015. Hazard assessment for a pharmaceutical mixture detected in the upper Tennessee River using Daphnia magna. Global Journal of Environmental Science and Management 1(1):1-14

Shaw J, Shafer HL*, Leonard OR, Kovach MJ, Schorr M, Morris AB. 2014. Chloroplast DNA sequence utility for the lowest phylogenetic and phylogeographic inferences in angiosperms: the tortoise and the hare IV. American Journal of Botany 101(11):1-1.

Schorr MS, Dyson MC*, Nelson CH, Van Horn GS, Collins DE, Richards SM. 2013. Effects of stream acidification on lotic salamander assemblages in a coal-mined watershed in the Cumberland Plateau. Journal of Freshwater Ecology, DOI:10.1080/02705060.2013.778219.

Cookson, N.* and M.S. Schorr. 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, and 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.

Conley, J.M.*, S.J. Symes, M.S. Schorr, and S.R. Richards. 2008. Spatial and temporal analysis of pharmaceutical concentrations in the upper Tennessee River basin. Chemosphere 73:1178-1187.

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.

Schorr, M.S. and L.E. Miranda. 1996. Influence of selected physical factors on the catch rate of white crappie in trap nets. Proceedings of the 49th Annual Conference Southeastern Association of Fish and Wildlife Agencies 49:206-216.

Miranda, L.E., M.S. Schorr, M.S. Allen, and K.E. Meals. 1996. Description of a floating trap net for sampling crappies. North American Journal of Fisheries Management 16:457-460.

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, Opalina spp. and Nyctotherus cordiformis, during the ontogeny of anuran tadpoles. Journal of Protozoology 37(6):479-481.

Miranda, L.E., J.C. Holder, and M.S. Schorr. 1990. Comparison of methods for estimating relative abundance of white crappie. Proceedings of the 44th Annual Conference of Fish and Wildlife Agencies 44:89-97.

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.

 

Other Published Manuscripts

Schorr, M.S., and L.E. Miranda. 2000. Fish movements between the Mississippi River and an oxbow lake, Arkansas-Mississippi. Proceedings of the Mississippi Water Resources Conference 30:86-94.

Combs, M.*, and M.S. Schorr. 1998. Relationships between water quality and the abundance of salamanders in southeastern Tennessee.  Proceedings of the 11th National Conference Undergraduate Research IV:1143-1146.

Jenkins, K.*, and M.S. Schorr. 1998. Impacts of acid mine drainage on stream fish assemblages in southeastern Tennessee. Proceedings of the 11th National Conference Undergraduate Research IV: 1137-1142.

Schorr, M.S., and D.C. Jackson. 1997. Floodplain fisheries resources under tribal jurisdiction of the Mississippi Band of Choctaw Indians. Proceedings of the 27th Mississippi Water Resources Conference 1997:56-62.