Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Dr. Thomas Kwak

Research Publications

  • Engman, A.C., J.R. Fischer, T.J. Kwak, and M.J. Walter. 2017. Diurnal feeding behavior of the American Eel Anguilla rostrata. Food Webs 13: 27-29.
  • Buczek, S.B., W.G. Cope, R.A. McLaughlin, and T.J. Kwak. 2017. Acute toxicity of polyacrylamide flocculants to early life stages of freshwater mussels. Environmental Toxicology and Chemistry 36: 2715-2721.
  • Myers, B.E., Lynch, A.J., Bunnell, D.B., Chu, C., Falke, J.A., Kovach, R.P., Krabbenhoft, T.J., Kwak, T.J., and C.P. Paukert. 2017. Global synthesis of the projected and documented effects of climate change on inland fishes. Reviews in Fish Biology and Fisheries 27:339–361.DOI 10.1007/s11160-017-9476-z
  • Lee Pow, C.S.D., K. Tilahun, K. Creech, J.M. Law, W.G. Cope, T.J. Kwak, J.A. Rice, D.D. Aday, and S.W. Kullman. 2017. Windows of susceptibility and consequences of early life exposures to 17β–estradiol on medaka (Oryzias latipes) reproductive success. Environmental Science and Technology 51: 5296-5305.
  • Ivasauskas, T.J., W.N. Xiong, A.C. Engman, J.R. Fischer, T.J. Kwak, and K.R. Rundle. 2017. Relationships among catch, angler satisfaction, and fish assemblage characteristics of an urban small impoundment fishery. Journal of the Southeastern Association of Fish and Wildlife Agencies 4: 31-38.
  • Pandolfo, T.J., T.J. Kwak, W.G. Cope, R.J. Heise, R.B. Nichols, and K. Pacifici. 2017. Declining occurrence and low colonization probability in freshwater mussel assemblages: a dynamic occurrence modeling approach. Freshwater Mollusk Biology and Conservation 20: 13-19.
  • Lee Pow, C., J.M. Law, T.J. Kwak, W.G. Cope, J.A. Rice, S.W. Kullman, D.D. Aday. 2017. Endocrine active contaminants in aquatic systems and intersex in common sport fishes. Environmental Toxicology and Chemistry 36: 959-968.
  • Pandolfo, T.J., T.J. Kwak, and W.G. Cope. 2016. Microhabitat suitability and niche breadth of common and imperiled Atlantic Slope freshwater mussels. Freshwater Mollusk Biology and Conservation 19: 27-50.
  • Pandolfo, T.J., T.J. Kwak, W.G. Cope, R.J. Heise, R.B. Nichols, and K. Pacifici. 2016. Species traits and catchment-scale habitat factors influence the occurrence of freshwater mussel populations and assemblages. Freshwater Biology 61: 1671-1684.
  • Lynch, A. J., and 10 coauthors. 2016. Climate change effects on North American inland fish populations, assemblages, and aquatic communities. Fisheries 346-361.
  • Kwak, T.J., A.C. Engman, J.R. Fischer, and C.G. Lilyestrom. 2016. Drivers of Caribbean freshwater ecosystems and fisheries. Pages 219-232 in W.W. Taylor, D.M. Bartley, C.I. Goddard, N.J. Leonard, and R. Welcomme, editors. Freshwater, fish and the future: proceedings of the global cross-sectoral conference. Food and Agriculture Organization of the United Nations, Rome; Michigan State University, East Lansing; and American Fisheries Society, Bethesda, Maryland.
  • Favrot, S.D. and T.J. Kwak. 2016. Efficiency of two-way weirs and prepositioned electrofishing for sampling potamodromous fish migrations. North American Journal of Fisheries Management 36: 167-182.
  • Smith, W.E. and T.J. Kwak. 2015. Tropical insular fish assemblages are resilient to flood disturbance. Ecosphere 6: article 279. (16 journal pages + supplemental material.) http://dx.doi.org/10.1890/ES15-00224.1
  • Drew, C.A., T.J. Kwak, W.G. Cope, and T. Augspurger. 2015. Hierarchical landscape models for endemic unionid mussels: building strategic habitat conservation tools for mussel recovery in the South Atlantic Landscape Conservation Cooperative. Final Report Submitted to U.S. Fish and Wildlife Service, South Atlantic Landscape Conservation Cooperative, Raleigh, North Carolina.
  • Fisk, J.M. II, T.J. Kwak, and R.J. Heise. 2015. Effects of regulated river flows on habitat suitability for the robust redhorse. Transactions of the American Fisheries Society 144: 792-806.
  • Sackett, D.K., C. Lee Pow, M.J. Rubino, D.D. Aday, W.G. Cope, S. Kullman, J.A. Rice, T.J. Kwak, and M. Law. 2015. Sources of endocrine-disrupting compounds in North Carolina waterways: a geographic information systems approach. Environmental Toxicology and Chemistry 34: 437-445.
  • DeRolph, C.R., S.A.C. Nelson, T.J. Kwak, and E.F. Hain. 2015. Predicting fine-scale distributions of peripheral aquatic species in headwater streams. Ecology and Evolution 5: 152-163.
  • Weaver, D.M., T.J. Kwak, and K.H. Pollock. 2014. Sampling characteristics and calibration of snorkel counts to estimate stream fish populations. North American Journal of Fisheries Management 34:1159-1166.
  • Archambault, J.M., W.G. Cope, and T.J. Kwak. 2014. Influence of sediment presence on freshwater mussel thermal tolerance. Freshwater Science 33: 56-65.
  • Smith, W.E. and T.J. Kwak. 2014. Otolith microchemistry of tropical diadromous fishes: spatial and migratory dynamics. Journal of Fish Biology 84: 913-928.
  • Smith, W.E. and T.J. Kwak. 2014. A capture-recapture model of amphidromous fish dispersal. Journal of Fish Biology 84: 897-912.
  • Fisk, J.M. II, T.J. Kwak, and R.J. Heise. 2014. Modelling riverine habitat for robust redhorse: assessment for reintroduction of an imperilled species. Fisheries Management and Ecology 21: 57-67.
  • Archambault, J.M., W.G. Cope, and T.J. Kwak. 2014. Survival and behaviour of juvenile unionid mussels exposed to thermal stress and dewatering in the presence of a sediment temperature gradient. Freshwater Biology 59: 601-613.
  • Garner, A.B., T.J. Kwak, K.L. Manuel, and D.H. Barwick. 2014. High-density grass carp stocking effects on a reservoir invasive plant and water quality. Journal of Aquatic Plant Management 51: 27-33.
  • Weaver, D.M. and T.J. Kwak. 2013. Assessing effects of stocked trout on nongame fish assemblages in southern Appalachian Mountain streams. Transactions of the American Fisheries Society 142: 1495-1507.
  • Heise, R.J., W.G. Cope, T.J. Kwak, and C.B. Eads. 2013. Short-term effects of small dam removal on a freshwater mussel assemblage. Walkerana: Journal of the Freshwater Mollusk Conservation Society 16: 41-52.
  • Archambault, J.M., W.G. Cope, and T.J. Kwak. 2013. Burrowing, byssus, and biomarkers: behavioral and physiological indicators of sublethal thermal stress in freshwater mussels (Unionidae). Marine and Freshwater Behaviour and Physiology 46: 229-250.
  • Kwak, T.J. W.G. Cope, J.D. Bales, T.J. Newton, J.A. Daraio, T.J. Pandolfo, J.M. Archambault, A.M. Ganser, R.J. Heise, and B.N. Karns. 2013. Modeling the response of imperiled freshwater mussels to anthropogenically induced changes in water temperature, habitat, and flow in streams of the southeastern and central United States. Final Report to U.S. Geological Survey, National Climate Change and Wildlife Science Center, Reston, Virginia.
  • Fisk, J.M. II, T.J. Kwak, R.J. Heise, and F.W. Sessions. 2013. Redd dewatering effects on hatching and larval survival of the robust redhorse. River Research and Applications 29: 574-581.
  • Cooney, P.B. and T.J. Kwak. 2013. Spatial extent and dynamics of dam impacts on tropical island freshwater fish assemblages. BioScience 63: 176-190.
  • Kwak, T.J., W.E. Smith, E.N. Buttermore, P.B. Cooney, and W.G. Cope. 2013. Fishery population and habitat assessment in Puerto Rico streams: phase 2 final report. Federal Aid in Sport Fish Restoration Project F-50 Final Report, Submitted to Marine Resources Division, Puerto Rico Department of Natural and Environmental Resources, San Juan.
  • Mosher, S, W.G. Cope, F.X. Weber, D. Shea, and T.J. Kwak. 2012. Effects of lead on Na+,K+-ATPase and hemolymph ion concentrations in the freshwater mussel Elliptio complanata. Environmental Toxicology 27: 268-276.
  • Kwak, T.J. 2012. Fisheries indicators, freshwater. Pages 130-135 in D. Fogel, S. Fredericks, L. Harrington, and I. Spellerberg, editors. Measurements, indicators, and research methods for sustainability. Encyclopedia of sustainability, volume 6. Berkshire Publishing, Great Barrington, Massachusetts.
  • Pandolfo, T.J., T.J. Kwak, and W.G. Cope. 2012. Thermal tolerances of freshwater mussels and their host fishes: species interactions in a changing climate. Walkerana: the Journal of the Freshwater Mollusk Conservation Society 15: 69-82.
  • Mosher, S., W.G. Cope, F.X. Weber, T.J. Kwak, and D. Shea. 2012. Assessing accumulation and sublethal effects of lead in a unionid mussel. Walkerana: the Journal of the Freshwater Mollusk Conservation Society 15: 60-68.
  • Wallace, B.C., D.M. Weaver, and T.J. Kwak. 2011. Efficiency of baited hoop nets for sampling catfish in southeastern U.S. small impoundments. Pages 581-588 in P.H. Michaletz and V.H. Travnichek, editors. Conservation, ecology, and management of catfish: the second international symposium. American Fisheries Society Symposium 77, Bethesda, Maryland.
  • Kwak, T.J., M.T. Porath, P.H. Michaletz, and V.H. Travnichek. 2011. Catfish science: status and trends in the 21st century. Pages 755-780 in P.H. Michaletz and V.H. Travnichek, editors. Conservation, ecology, and management of catfish: the second international symposium. American Fisheries Society Symposium 77, Bethesda, Maryland.
  • Baumann, J.R. and T.J. Kwak. 2011. Trophic relations of introduced flathead catfish in an Atlantic river. Transactions of the American Fisheries Society 140: 1120-1134.
  • Quinn, J.W. and T.J. Kwak. 2011. Movement and survival of brown trout and rainbow trout in an Ozark tailwater river. North American Journal of Fisheries Management 31: 299-304.
  • Cope, W.G., F.M. Holliman, T.J. Kwak, N.C. Oakley, P.R. Lazaro, D. Shea, T. Augspurger, J.M. Law, J.P. Henne, and K.M. Ware. 2011. Assessing water quality suitability for shortnose sturgeon in the Roanoke River, North Carolina, USA with an in situ bioassay approach. Journal of Applied Ichthyology 27: 1-12.
  • Kwak, T.J. and M.C. Freeman. 2010. Assessment and management of ecological integrity. Pages 353-394 in W.A. Hubert and M.C. Quist, editors. Inland fisheries management in North America, third edition. American Fisheries Society, Bethesda, Maryland.
  • Cooney, P.B. and T.J. Kwak. 2010. Development of standard weight equations for Caribbean and Gulf of Mexico amphidromous fishes. North American Journal of Fisheries Management 30: 1203-1209.
  • 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
  • Midway, S.R., D.D. Aday, T.J. Kwak, and K. Gross. 2010. Cover preference of the Carolina madtom (Noturus furiosus), an imperiled, endemic southeastern stream fish. Journal of Freshwater Ecology 25: 151-154.
  • Midway, S.R., T.J. Kwak, and D.D. Aday. 2010. Habitat suitability of the Carolina madtom, an imperiled, endemic stream fish. Transactions of the American Fisheries Society 139: 325-338.
  • Hewitt, A.H., T.J. Kwak, W.G. Cope, and K.H. Pollock. 2009. Population density and instream habitat suitability of the endangered Cape Fear shiner. Transactions of the American Fisheries Society 138: 1439-1457.
  • Neal, J.W., C.G. Lilyestrom, and T.J. Kwak. 2009. Factors influencing tropical island freshwater resources: species, status, and management implications in Puerto Rico. Fisheries 34(11): 546-554.
  • Berkson, J., K.M. Hunt, J.C. Whitehead, D.J. Murie, T.J. Kwak, and J. Boreman. 2009. Is there a shortage of fisheries stock assessment scientists? Fisheries 34(5): 217-219.
  • Holliman, F. M., D. Davis, A. E. Bogan, T. J. Kwak, W. G. Cope, and J. F. Levine. 2008. Magnetic resonance imaging of live freshwater mussels (Unionidae). Invertebrate Biology 127: 396-402.
  • Hunt, K.M., J.C. Whitehead, D.J. Murie, and T.J. Kwak. 2008. Supply report: survey of institutions of higher learning to investigate possible shortages in the number of individuals with post-baccalaureate degrees in subjects related to fishery science. Pages 21-39 in U.S. Department of Commerce and U.S. Department of Education. The shortage in the number of individuals with post-baccalaureate degrees in subjects related to fishery science. NOAA Technical Memorandum NMFS-F/SPO-91.
  • Holliman, F. M., T. J. Kwak, W. G. Cope, and J. F. Levine. 2007. Exposure of unionid mussels to electric current: assessing risks associated with electrofishing. Transactions of the American Fisheries Society 136: 1593-1606.
  • Hayes, D. B., J. R. Bence, T. J. Kwak, and B. E. Thompson. 2007. Abundance, biomass, and production estimation. Pages 327-374 in C. S. Guy and M. L. Brown, editors. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Maryland.
  • Kwak, T. J., and J. T. Peterson. 2007. Community indices, parameters, and comparisons. Pages in 677-763 in C. S. Guy and M. L. Brown, editors. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Maryland.
  • Gustafson, L., W. Showers, T. Kwak, J. Levine, and M. Stoskopf. 2007. Temporal and spatial variability in stable isotope compositions of a freshwater mussel: implications for biomonitoring and ecological studies. Oecologia 152: 140-150.
  • Pine, W. E, III, T. J. Kwak, and J. A. Rice. 2007. Modeling management scenarios and the effects of an introduced apex predator on a coastal riverine fish community. Transactions of the American Fisheries Society 136: 105-120.
  • Kwak, T. J., and F. J. Margraf. 2006. Fisheries employment in Cooperative Research Units: where agency meets academia. Pages 109-121 in D. A. Hewitt, W. E. Pine III, and A. V. Zale, editors. The American Fisheries Society guide to fisheries employment, second edition. American Fisheries Society, Bethesda, Maryland.
  • Hewitt, A. H., W. G. Cope, T. J. Kwak, T. Augspurger, P. R. Lazaro, and D. Shea. 2006. Influence of water quality and associated contaminants on survival and growth of the endangered Cape Fear shiner (Notropis mekistocholas). Environmental Toxicology and Chemistry 25: 2288-2298.
  • Brown J. J., J. Perillo, T. J. Kwak, and R. J. Horwitz. 2005. Implications of Pylodictis olivaris (flathead catfish) introduction into the Delaware and Susquehanna drainages Northeastern Naturalist 12: 473-484.
  • Kwak, T. J., W. E. Pine, III, and D. S. Waters. 2006. Age, growth, and mortality of introduced flathead catfish in Atlantic rivers and a review of other populations. North American Journal of Fisheries Management 26: 73-87.
  • Heltsley, R. M., W. G. Cope, D. Shea, R. B. Bringolf, T. J. Kwak, and E. G. Malindzak. 2005. Assessing organic contaminants in fish: comparison of a non-lethal tissue sampling technique to mobile and stationary passive sampling devices. Environmental Science and Technology 39: 7601-7608.
  • Bringolf, R. B., T. J. Kwak, W. G. Cope, and M. S. Larimore. 2005. Salinity tolerance of flathead catfish: implications for dispersal of introduced populations. Transactions of the American Fisheries Society 134: 927-936.
  • Gustafson, L. L., M. K. Stoskopf, A. E. Bogan, W. Showers, T. J. Kwak, S. Hanlon, and J. F. Levine. 2005. Evaluation of a nonlethal technique for hemolymph collection in Elliptio complanata, a freshwater bivalve (Mollusca: Unionidae). Diseases of Aquatic Organisms 65: 159-165.
  • Gustafson, L. L., M. K. Stoskopf, W. Showers, G. Cope, C. Eads, R. Linnehan, T. J. Kwak, B. Andersen, and J. F. Levine. 2005. Reference ranges for hemolymph chemistries from Elliptio complanata of North Carolina. Diseases of Aquatic Organisms 65: 167-176.
  • Pine, W. E, III, T. J. Kwak, D. S. Waters, and J. A. Rice. 2005. Diet selectivity of introduced flathead catfish in coastal rivers. Transactions of the American Fisheries Society 134: 901-909.
  • Radwell A. J., and T. J. Kwak. 2005. Assessing ecological integrity of Ozark rivers to determine suitability for protective status. Environmental Management 35: 799-810.
  • Barwick, R. D., T. J. Kwak, R. L. Noble, and D. H. Barwick. 2004. Fish populations associated with habitat-modified piers and natural woody debris in Piedmont Carolina reservoirs. North American Journal of Fisheries Management 24: 1120-1133.
  • Waters, D. S., T. J. Kwak, J. B. Arnott, and W. E. Pine III. 2004. Evaluation of stomach tubes and gastric lavage for sampling diets from blue catfish and flathead catfish. North American Journal of Fisheries Management 24: 258-261.
  • Pine, W. E., K. H. Pollock, J. E. Hightower, T. J. Kwak, and J. A. Rice. 2003. A review of tagging methods for estimating fish population size and components of mortality. Fisheries 28(10): 10-23.
  • Holliman, F. M., J. B. Reynolds, and T. J. Kwak. 2003. A predictive risk model for electroshock- induced mortality of the endangered Cape Fear shiner. North American Journal of Fisheries Management 23: 905-912.
  • Holliman, F. M., J. B. Reynolds, and T. J. Kwak. 2003. Electroshock-induced injury and mortality in the spotfin chub, a threatened minnow. North American Journal of Fisheries Management 23: 962-966.
  • Quinn, J. W., and T. J. Kwak. 2003. Fish assemblage changes in an Ozark river after impoundment: a long-term perspective. Transactions of the American Fisheries Society 132: 110-119.
  • Pender, D. R., and T. J. Kwak. 2002. Factors influencing brown trout reproductive success in Ozark tailwater rivers. Transactions of the American Fisheries Society 131:698-717.
  • Quinn, J. W., and T. J. Kwak. 2000. Use of rehabilitated habitat by brown trout and rainbow trout in an Ozark tailwater river. North American Journal of Fisheries Management 20: 737-751.
  • Peterson, J. T., and T. J. Kwak. 1999. Modeling the effects of land use and climate change on riverine smallmouth bass. Ecological Applications 9: 1391-1404.
 

Current Staff

Federal Staff: 4

Masters Students: 3

Phd Students: 5

Post Docs: 3

University Staff: 25

5 Year Summary

Students graduated: 28

Scientific Publications: 100

Presentations: 168

 

Contact Us

North Carolina Cooperative Fish and Wildlife Research Unit Raleigh, NC 27695-7617 Phone: (919) 515 - 2631 Fax: (919) 515 - 4454 Our University Web Site

Unit Leader

Thomas Kwak
Tom Kwak, Unit Leader, Professor<br />NC Cooperative Fish and Wildlife Research Unit

B.S., 1981, Ecology, Ethology, and Evolution, University of Illinois
M.S., 1983, Biology, University of Illinois
Ph.D., 1993, Fisheries, University of Minnesota

North Carolina Cooperative Fish and Wildlife Research Unit Cooperators

  1. North Carolina State University
  2. North Carolina Wildlife Resources Commission
  3. U.S. Fish and Wildlife Service
  4. U.S. Geological Survey
  5. Wildlife Management Institute