Jason Vokoun

Professor & Department Head

Department of Natural Resources & the Environment

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Titles:

Professor & Department Head

Education:

PhD 2003 University of Missouri; Fisheries and Wildlife Sciences

MS 1999 University of Missouri; Fisheries and Wildlife Sciences

BS 1996 University of Nebraska; Forestry, Fisheries, and Wildlife

Professional Experience:

2018 – Present University of Connecticut, Professor & Department Head
2010 – 2018 University of Connecticut, Associate Professor
2004 – 2010 University of Connecticut, Assistant Professor

Undergraduate Courses:

NRE 3245 Environmental Law (summer online)
NRE 3385W Fisheries Techniques
NRE 4000W Natural Resources Planning and Management (in rotation)
NRE 4335 Fisheries Management

Research Interests:

Resource selection and habitat use of aquatic species; statistical modeling of habitat use; fish movement and migration; conservation of stream ecosystems; species of special conservation concern; fisheries sampling issues dealing with sample sizes and effort.

Publications:

• Sullivan, C. J., N.H. Schumaker, and J.C. Vokoun. 2025. Warming riverscapes annually challenge the role of thermal refuges for thermoregulating salmonids. Journal of Applied Ecology, 00, 1–12. https://doi.org/10.1111/1365-2664.70146
• Manstan, S.E., C.J. Sullivan, and J.C. Vokoun. 2025. Movement and survival of stocked Brown Trout in a climate-altered fifth-order river. North American Journal of Fisheries Management DOI: 10.1093/najfmt/vqaf013
• Liberati, M.R., C.D. Rittenhouse, and J.C. Vokoun. 2024. Making decisions under demographic, management, and monitoring uncertainty with value of information. Journal of Wildlife Management DOI: 10.1002/jwmg.22582
• Sullivan, C.J., J.C. Vokoun. 2023. Disentangling effects of habitat on salmonid abundance in thermal refuges while accounting for imperfect detection. Ecosphere DOI: 10.1002/ecs2.4727
• Sullivan, C.J., C.D. Rittenhouse, and J.C. Vokoun. 2023. Camera traps reveal that terrestrial predators are pervasive at riverscape cold-water thermal refuges. Ecology and Evolution 13:e10316 DOI: 10.1002/ece3.10316
• Sullivan, C.J., J.C. Vokoun, and C.R. Perkins. 2023. Spatiotemporal changes in largemouth bass mercury concentrations from Connecticut waterbodies, 1995-2021. Environmental Monitoring and Assessment 195:780 DOI: 10.1007/s10661-023-11405-4
• Sullivan, C.J., J.C. Vokoun, A.M. Helton, M.A. Briggs, and B.L. Kurylyk. 2021. An ecohydrological typology for thermal refuges in streams and rivers. Ecohydrology DOI: 10.1002/eco.2295
• Kasper, J.M., J. Brust, A. Caskenette, J. McNamee, J.C. Vokoun, E.T. Schultz. 2020. Using harvest slot limits to promote stock recovery and broaden age structure in marine recreational fisheries: a case study. North American Journal of Fisheries Management 40: 1451-1471 DOI: 10.1002/nafm.10511
• Nathan, L.R., Y. Kanno, B.H. Letcher, A.B. Welsh, A.R. Whitely, and J.C. Vokoun. 2020. Evaluation of genetic structuring within GIS-dervired Brook Trout management units. Transactions of the American Fisheries Society 149:681-694 DOI: 10.100/tafs.10260
• Liberati, M.R., C.D. Rittenhouse, and J.C. Vokoun. 2020. Subdivision for conservation? Landscape and Urban Planning 195: 103723 DOI: 10.1016/j.landurbplan.2019.103723
• Pregler, K.C., N. Hagstrom, E.T. Schultz, J.C. Vokoun. 2019. Landscape factors predict local extirpation in an imperiled minnow species, bridle shiner (Notropis bifrenatus). Aquatic Conservation: Marine and Freshwater Ecosystems 29:1227-1237 DOI: 10.1002/aqc.3123
• Liberati, M.R., C.D. Rittenhouse, and J.C. Vokoun. 2019. Addressing ecological, economic, and social tradeoffs of refuge expansion in constrained landscapes. Landscape Ecology 34:627-647 DOI: 10.1007/s10980-019-00798-8
• Nathan, L.R., A.B. Welsh, and J.C. Vokoun. 2019. Watershed-level brook trout genetic structuring: evaluation and application of riverscape genetics models. Freshwater Biology 64:405-420. DOI: 10.1111/fwb.13230
• Hessenauer, J.-M., J.C. Vokoun, J. Davis, R. Jacobs, and E. O’Donnell. 2018. Size Structure Suppression and Obsolete Length Regulations in Recreational Fisheries Dominated by Catch-and-Release. Fisheries Research 200:33-42. DOI: 10.1016/j.fishres.2017.12.007
• Nathan, L., *A.A. Smith, A.B. Welsh, and J. Vokoun. 2018. Are culvert assessment scores an indicator of Brook Trout Salvelinus fontinalis population fragmentation? Ecological Indicators 84:208-217. DOI: 10.1016/j.ecolind.2017.08.033
• Click for additional manuscripts