Patuxent Wildlife Research Center

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Mary Freeman

Email: mcfreeman@usgs.gov

Areas of Study

Aquatic Research to Support SALCC Science Needs

WaterSMART: Apalachicola/Chattahoochee/Flint River (ACF) Basin

Quantifying Effects of Flow Variability on Riverine Biota



Freeman, B. J., A. T. Taylor, K. J. Oswald, J. Wares, M. C. Freeman, J. M. Quattro, and J. K. Leitner. 2015. Shoal basses: A clade of cryptic identity. Pages 449-466 in Michael D. Tringali, James M. Long, Timothy W. Birdsong, and Michael S. Allen, editors. Black Bass Diversity: Multidisciplinary Science for Conservation. American Fisheries Society Symposium 82 American Fisheries Society, Abstract

Straight, C. A., C. R. Jackson, B. J. Freeman, and M. C. Freeman. 2015. Diel patterns and temporal trends in spawning activities of robust redhorse and river redhorse in Georgia, assessed using passive acoustic monitoring. Transactions of the American Fisheries Society 144(3):563-576. Abstract


Olden, J. D., C. P. Konrad, T. S. Melis, M. J. Kennard, M. C. Freeman, M. C. Mims, E. N. Bray, K. B. Gido, N. P. Hemphill, D. Lytle, L. E. McMullen, M. Pyron, C. T. Robinson, J. C. Schmidt, and J. G. Williams. 2014. Are large-scale flow experiments informing the science and management of freshwater ecosystems? Frontiers in Ecology and the Environment 12:176-185. Abstract

Straight, C. A., B. J. Freeman, and M. C. Freeman. 2014. Passive Acoustic Monitoring to Detect Spawning in Large-Bodied Catostomids. Transactions of the American Fisheries Society 143(3):595-605. Abstract


Alley, W. M., E. J. Evenson, N. L. Barber, B. W. Bruce, K. F. Dennehy, M. C. Freeman, W. O. Freeman, J. M. Fischer, W. B. Hughes, J. G. Kennen, J. E. Kiang, K. O. Maloney, M. Musgrove, B. Ralston, S. Tessler, and Verdin J.P. 2013. Report to Congress -- Progress toward establishing a national assessment of water availability and use. Circular 1384. U.S. Geological Survey. 34 pp. Abstract

Freeman, M. C. 2013. Training the next generation of river warriors [book review]: Environmental Flows: Saving Rivers in the Third Millennium. Angela H. Arthington. University of California Press, 2012. BioScience 63(6):499-500. Abstract

Freeman, M. C., G. R. Buell, L. E. H. W. B. Hay, R. B. Jacobson, J. W. Jones, S. A. Jones, J. H. Lafontaine, K. R. Odom, J. T. Peterson, J. W. Riley, J. S. Schindler, C. Shea, and J. D. Weaver. 2013. Linking river management to species conservation using dynamic landscape scale models. River Research and Applications 29(7):906-918. Abstract


Anderson, G. B., M. C. Freeman, B. J. Freeman, C. A. Straight, M. M. Hagler, and J. T. Peterson. 2012. Dealing with uncertainty when assessing fish passage through culvert road crossings. Environmental Management 50(3):462-477. Abstract

Anderson, G. B., M. C. Freeman, M. M. Hagler, and B. J. Freeman. 2012. Occupancy modeling and estimation of the holiday darter complex within the Etowah River system. Transactions of the American Fisheries Society 141(1):34-45. Abstract


Hagler, M. M., M. C. Freeman, S. J. Wenger, B. J. Freeman, P. L. Rakes, and J. R. Shute. 2011. Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae). Canadian Journal of Fisheries and Aquatic Sciences 68(5):739-748. Abstract

Konrad, C. P., J. D. Olden, D. A. Lytle, T. S. Mellis, J. C. Schmidt, E. N. Bray, M. C. Freeman, K. B. Gido, N. P. Hemphill, M. J. Kennard, L. E. McMullen, M. C. Mims, M. Pyron, C. T. Robinson, and J. G. Williams. 2011. Large-scale flow experiments for managing river systems. BioScience 61(12):948-959. Abstract


Argentina, J. E., M. C. Freeman, and B. J. Freeman. 2010. Predictors of occurrence of the aquatic macrophyte Podostemum ceratophyllum in a southern Appalachian River. Southeastern Naturalist 9(3):465-476. Abstract

Argentina, J. E., M. C. Freeman, and B. J. Freeman. 2010. The response of stream fish to local and reach-scale variation in the occurrence of a benthic aquatic macrophyte. Freshwater Biology 55(3):643-653. Abstract

Craven, S. W., J. T. Peterson, M. C. Freeman, T. J. Kwak, and E. Irwin. 2010. Modeling the relations between flow regime components, species traits, and spawning success of fishes in warmwater streams. Environmental Management, 46(2):181-194. Abstract

Poff, N. L., B. D. Richter, A. H. Arthington, S. E. Bunn, R. J. Naiman, E. Kendy, M. Acreman, C. Apse, B. P. Bledsoe, M. C. Freeman, J. Henriksen, R. B. Jacobson, J. G. Kennen, D. W. Merritt, J. H. O'Keeffe, J. D. Olden, K. Rogers, R. E. Tharme, and A. Warner. 2010. The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards. Freshwater Biology 55(1):147-170. Abstract

Wenger, S. J., M. C. Freeman, L. A. Fowler, B. J. Freeman, and J. T. Peterson. 2010. Conservation planning for imperiled aquatic species in an urbanizing environment. Landscape and Urban Planning 97(1):11-21. Abstract


Boon, P. J. and M. C. Freeman. 2009. Methods for assessing the conservation value of rivers. Pages 142-165 in P. J. Boon and C. M. Pringle, editors. Assessing the Conservation Value of Fresh Waters: An International Perspective. Cambridge University Press, Cambridge. x, 293 pp. Abstract

Crook, K. E., C. M. Pringle, and M. C. Freeman. 2009. A method to assess longitudinal riverine connectivity in tropical streams dominated by migratory biota. Aquatic Conservation: Marine and Freshwater Ecosystems 19(6):714-723. Abstract

Norman, J. R., M. M. Hagler, M. C. Freeman, and B. J. Freeman. 2009. Application of a multistate model to estimate culvert effects on movement of small fishes. Transactions of the American Fisheries Society 138(4):826-838. Abstract


Freeman, M. C., B. J. Freeman, N. M. Burkhead, and C. A. Straight. 2008. A new species of Percina (Perciformes: Percidae) from the Apalachicola River drainage, southeastern United States. Zootaxa 1963:25-42. PDF

Anderson, E. P., C. M. Pringle, and M. C. Freeman. 2008. Quantifying the extent of river fragmentation by hydropower dams in the Sarapiqui River Basin, Costa Rica. Aquatic Conservation: Marine and Freshwater Ecosystems 18(4):408-417. Abstract

Wenger, S. J. and M. C. Freeman. 2008. Estimating species occurrence, abundance, and detection probability using zero-inflated distributions. Ecology 89(10):2953-2959. Abstract

Wenger, S. J., J. T. Peterson, M. C. Freeman, B. J. Freeman, and D. D. Homans. 2008. Stream fish occurrence in response to impervious cover, historic land use, and hydrogeomorphic factors. Canadian Journal of Fisheries and Aquatic Sciences 65(6):1250-1264. Abstract  

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Last Updated: June 2015


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