Cooperative Fish and Wildlife Research Units Program: Montana Fishery
Education, Research and Technical Assistance for Managing Our Natural Resources

Montana Fishery Staff Member


Dr. Christopher Guy

Christopher Guy

Assistant Unit Leader
Phone: (406) 994 - 3491
Email: cguy@montana.edu
Personal website

Education

  • Ph D South Dakota State University 1993

Biography

Most of my research falls within the broad mission of ecology of fishery and aquatic resources. A major, consistent research theme has been on native fish assemblage restoration, a prominent ecological and societal issue in Rocky Mountain and Great Plains ecosystems.

Teaching Interest

Fisheries Science, Fisheries Techniques

Research Interest

Fish ecology, fishery stock assessment, fishery management regulations and tools, native and non-native species interactions

Research Publications Publication Date
Wuellner, M. R., and C. S. Guy. 2008. Status assessment of burbot in Montana: importance of a standardized sampling protocol. Intermountain Journal of Sciences 14:61-77. 2010-01-31
Wuellner, M. R., R. G. Bramblett, C. S. Guy, A. V. Zale, D. R. Roberts, and J. Johnson. 2013. Reach and catchment-scale characteristics are relatively uninfluential in explaining the occurrence of stream fish species. Journal of Fish Biology 82:1497-1513. 2013-05-31
Williams, J. R., C. S. Guy, T. M. Koel, P. Bigelow. 2020. Targeting aggregations of telemetered lake trout to increase gillnetting suppression efficacy. North American Journal of Fisheries Management 40:225-231. 2020-01-31
Tripe, J. A., and C. S. Guy. 1999. Spatial and temporal variation in habitat and fish community characteristics in a Kansas Flint Hills stream. Ecology of Freshwater Fish. 1999-11-30
Thomas, N. A., C. S. Guy, T. M. Koel, and A. V. Zale. 2019. In-situ evaluation of benthic suffocation methods for suppression of invasive Lake Trout embryos in Yellowstone Lake. North American Journal of Fisheries Management 39:104-111. 2019-01-31
Tennant, L. B., R. E. Gresswell, C. S. Guy, and M. H. Meeuwig. 2015. Spawning and rearing behavior of bull trout in a headwater lake ecosystem. Environmental Biology of Fishes DOI 10.1007/s10641-015-0461-x. 2015-11-30
Talbott, M. J., J. P. Van Eenennaam, J. Linares-Casenave, S. I. Doroshov, C. S. Guy, P. Struffenegger, M. A. H. Webb. 2011. Investigating the use of plasma testosterone and estradiol-17β to detect ovarian follicular atresia in farmed white sturgeon, Acipenser transmontanus. Aquaculture 315:283-289. 2011-04-30
Syslo, J. M., T. O. Brenden, C. S. Guy, T. M. Koel, P. E. Bigelow, P. D. Doepke, J. L. Arnold, and B. E. Ertel. 2020. Could ecological release buffer suppression efforts for non-native lake trout (Salvelinus namaycush) in Yellowstone Lake, Yellowstone National Park? Canadian Journal of Fisheries and Aquatic Sciences 77:1010-1025. 2020-06-30
Syslo, J. M., C. S. Guy, and T. M. Koel. 2016. Feeding ecology of native and nonnative salmonids during the expansion of a nonnative apex predator in Yellowstone Lake, Yellowstone National Park. Transactions of the American Fisheries Society 145:476-492 2016-05-31
Syslo, J. M., C. S. Guy, and B. S. Cox. 2013. Comparison of harvest scenarios for the cost-effective suppression of lake trout in Swan Lake, Montana. North American Journal of Fisheries Management. 2013-09-30
Syslo, J. M., C. S. Guy, P. E. Bigelow, P. D. Doepke, B. D. Ertel, and T. M. Koel. 2011. Response of non-native lake trout (Salvelinus namaycush) to 15 years of harvest in Yellowstone Lake, Yellowstone National Park. Canadian Journal of Fisheries and Aquatic Sciences 68:2132-2145. 2012-03-31
Strakosh, T. R., K. B. Gido, and C. S. Guy. 2009. Effects of American water willow establishment on age-0 largemouth bass Micropterus salmoides in Kansas reservoirs. Transactions of the American Fisheries Society. 2009-02-28
Strakosh, T. R., J. L. Eitzmann, K. B. Gido, and C. S. Guy. 2005. The response of water willow, Justicia americana, to different inundation and desiccation regimes. North American Journal of Fisheries Management 25:1476-1485. 2005-11-30
Schultz, R. D., C. S. Guy, and D. A. Robinson. 2002. Recruitment of white bass in Kansas reservoirs: relations to reservoir hydrology and gizzard shad. North American Journal of Fisheries Management 22:671-676. 2002-05-31
Schrank, S. J., and C. S. Guy. 2002. Age, growth, and gonadal characteristics of adult bighead carp Hypophthalmichthys nobilis in the lower Missouri River. Environmental Biology of Fishes. 2002-09-30
Schrank, S. J., P. J. Braaten, and C. S. Guy. 2001. Spatiotemporal variation in density of larval bighead carp in the lower Missouri River. Transactions of the American Fisheries Society 130:809-814. 2001-08-31
Schrank, S. J., C. S. Guy, and J. F. Fairchild. 2003. Competitive interactions between age-0 bighead carp and paddlefish. Transactions of the American Fisheries Society 132:1222-1228. 2003-11-30
Schrank, S. J., C. S. Guy, M. R. Whiles, and B. L. Brock. 2001. Influence of instream and landscape-level factors on the distribution of Topeka shiners Notropis topeka in Kansas streams. Copeia 2001 (2)413-421. 2001-06-30
Scholl, E. A., W. F. Cross, C. V. Baxter, and C. S. Guy. 2020. Uncovering process domains in large rivers: Patterns and potential drivers of benthic substrate heterogeneity in two North American riverscapes. Geomorphology. https://doi.org/10.1016/j.geomorph.2020.107524 2020-12-31
Schoenebeck, C. W., T. R. Strakosh, and C. S. Guy. 2005. Effect of block nets and time of day on backpack electrofishing catches in Kansas reservoirs. North American Journal of Fisheries Management 25:604-608. 2005-05-31
Russell, R. E., D. A. Schmetterling, C. S. Guy, B. B. Shepard, R. McFarland, and D. Skaar. 2012. Evaluating a fish monitoring protocol using state-space hierarchical models. Open Fish Science Journal 5:1-8. 2012-03-31
Richards, R. R., C. S. Guy, M .A. H. Webb, W. M. Gardner, and C. B. Jensen. 2014. Spawning related migration of shovelnose sturgeon in the Missouri River above Fort Peck Reservoir, Montana. Journal of Applied Ichthyology 30:1-13. 2014-01-31
Quist, M. C., and C. S. Guy. 2001. Growth and mortality of prairie stream fishes and relations with instream habitat. Ecology of Freshwater Fish 10:88-96. 2001-01-31
Quist, M. C., and C. S. Guy. 1999. Variation in population characteristics of shovelnose sturgeon in the Kansas River. The Prairie Naturalist. 1999-11-30
Quist, M. C., R. J. Bernot, C. S. Guy, and J. L. Stephen. 2001. Seasonal variation in population characteristics of gizzard shad. Journal of Freshwater Ecology 16(4): 641-646. 2001-12-31
Quist, M. C., P. A. Fay, C. S. Guy, A. K. Knapp, and B. N. Rubenstein. 2003. The influence of disturbance from military training activities on terrestrial-aquatic linkages in a tallgrass prairie ecosystem. Ecological Applications 13:432-442. 2003-04-30
Quist, M. C., K. R. Pember, C. S. Guy, and J. L. Stephen. 2004. Variation in larval fish communities: implications for management and sampling designs in reservoir systems. Fisheries Management and Ecology 11:107-116. 2004-04-30
Quist, M. C., J. L. Stephen, C. S. Guy, and R. D. Schultz. 2004. Age structure and mortality of walleyes in Kansas reservoirs: applications for establishing realistic management objectives. North American Journal of Fisheries Management. 2004-08-31
Quist, M. C., C. S. Guy, and R. J. Bernot. 2004. Anti-behavior of larval walleyes and saugeyes. Transactions of the Kansas Academy of Science: 69-76. 2004-01-31
Quist, M. C., C. S. Guy, and J. L. Stephen. 2003. Recruitment dynamics of walleyes in Kansas reservoirs: generalities with natural systems and effects of a centrarchid predator. Canadian Journal of Fisheries and Aquatic Sciences 60:1-10 2003-07-31
Quist, M. C., C. S. Guy, and J. L. Stephen. 2001. The effect of light shock on short-term survival of walleye fry. Transactions of the Kansas Academy of Science 104:3-4. 2001-11-30
Quist, M. C., C. S. Guy, R. J. Bernot, and J. L. Stephen. 2004. Factors influencing growth and survival of larval walleye in Glen Elder Reservoir, Kansas. Fisheries Research 67:215-225. 2004-04-30
Quist, M. C., C. S. Guy, R. J. Bernot, and J. L. Stephen. 2002. Seasonal variation in condition, growth, and food habits of walleyes in a Great Plains reservoir and simulated effects of an altered thermal regime. Journal of Fish Biology 61:1329-1344. 2003-05-31
Quist, M. C., C. S. Guy, R. J. Bernot, and J. L. Stephen. 2002. Efficiency of removing food items from walleyes using acrylic tubes. Journal of Freshwater Ecology 17:179-184. 2002-06-30
Quist, M. C., C. S. Guy, R. J. Bernot, and J. L. Stephen. 2002. Ecology of larval white bass in a large Kansas reservoir. North American Journal of Fisheries Management 22:637-642. 2002-05-31
Quist, M. C., C. S. Guy, R. D. Schultz, and J. L. Stephen. 2003. Latitudinal comparisons of walleye growth in North America and factors influencing growth of walleyes in Kansas reservoirs. North American Journal of Fisheries Management 23:677-692. 2003-08-31
Quist, M. C., C. S. Guy, M. A. Pegg, P. J. Braaten, C. L. Pierce, and V. H. Travnichek. 2002. Potential influence of harvest on shovelnose sturgeon populations in the Missouri River system: A case for pro-active management. North American Journal of Fisheries Management 22:537-549. 2002-05-31
Proboszcz, S. L., and C. S. Guy. 2006. Use of habitat enhancement structures by spotted bass in natural and experimental streams. The Prairie Naturalist 38:223-238. 2007-04-30
Pegg, M. A., K. Pope, and C. S. Guy. 1999. Evaluation of current professional certification use. Fisheries. 1999-11-30
Olson, N. W., C. S. Guy, and K. D. Koupal. 2007. Interactions among hybrid striped bass, white bass, and walleye in a polymictic Great Plans reservoir. North American Journal of Fisheries Management 27:268-278. 2007-02-28
Oldenburg, E. W., C. S. Guy, E. S. Cureton, M. A. H. Webb, and W. M. Gardner. 2011. Effects of acclimation on poststocking dispersal and physiological condition of age-1 pallid sturgeon. Journal of Applied Ichthyology 27:436-443. 2011-04-30
Neumann, R. M., C. S. Guy, and D. W. Willis. 2012. Length, weight, and associated indices. Pages 637-676 in A.V. Zale, D. L. Parrish, and T. M. Sutton, editors. Fisheries techniques, 3rd edition. American Fisheries Society, Bethesda, Maryland. 2012-12-31
Mullen, J. A., R. G. Bramblett, C. S. Guy, A. V. Zale, and D. W. Roberts. 2011. Determinants of fish assemblage structure in northwestern Great Plains streams. Transactions of the American Fisheries Society 140:271-281. | Abstract 2011-04-30
Mullen, J. A., R. G. Bramblett, C. S. Guy, and A. V. Zale. 2011. Determinants of fish assemblage structure in northwestern Great Plains streams. Transactions of the American Fisheries Society 140:271-281. 2011-07-31
Meeuwig, M. H., C. S. Guy, and W. A. Fredenberg. 2008. Influence of landscape characteristics on fish species richness among lakes of Glacier National Park, Montana. Intermountain Journal of Sciences 14:1-16. 2008-11-30
Meeuwig, M. H., C. S. Guy, and W. A. Fredenberg. 2011. Use of cover habitat by bull trout, Salvelinus confluentus, and lake trout, Salvelinus namaycush, in a laboratory environment. Environmental Biology of Fishes 90:367-378. 2011-06-30
Meeuwig, M. H., C. S. Guy, and W. A. Fredenberg. 2011. Trophic relationships between a native and nonnative predator in a system of natural lakes. Ecology of Freshwater Fish 20:no. doi:10.111/j.1600-0633.2011.00498.x. 2011-05-31
Meeuwig, M. H., C. S. Guy, S. T. Kalinowski, and W. A. Fredenberg. 2010. Landscape influences on genetic differentiation among bull trout populations in a stream-lake network. Molecular Ecology 19:3620-3633. (INVITED) 2010-08-31
McGarvey, L. M., L. J. Halvorson, J. E. Ilgen, C. S. Guy, J. G. McLellan, and M. A. H. Webb. 2020. Gametogenesis and assessment of non-lethal tools to assign sex and reproductive condition in Burbot Lota lota. Transactions of the American Fisheries Society 149:225-240. 2020-02-28
Lewandoski, S. A., C. S. Guy, A. V. Zale, P. C. Gerrity, J. W. Deromdei, K. M. Johnson, D. L. Skates. 2017. Empirical estimation of recreational exploitation of burbot, Lota lota, in the Wind River drainage of Wyoming using a multistate capture-recapture model. Fisheries Management and Ecology 24:298-307. 2017-05-31
Koel, T. M., N. A. Thomas, C. S. Guy, P. D. Doepke, D. J. MacDonald, A. S. Poole, W. M. Sealey, and A. V. Zale. 2020. Organic pellet decomposition induces mortality of lake trout embryos in Yellowstone Lake. Transactions of the American Fisheries Society 149:57-70. 2020-01-31
Koel, T. M., J. L. Arnold, P. E. Bigelow, T. O. Brenden, J. D. Davis, C. R. Detjens, P. D. Doepke, B. D. Ertel, H. C. Glassic, R. E. Gresswell, C. S. Guy, D. J. MacDonald, M. E. Ruhl, T. J. Stuth, D. P. Sweet, J. M. Syslo, N. A. Thomas, L. M. Tronstad, P. J. White, and A. V. Zale. 2020. Yellowstone Lake ecosystem restoration: a case study for invasive fish management. Fishes. . https://doi.org/10.1111/jai.14067 2020-06-30
Kalinowski, S. T., C. C. Muhlfeld, C. S. Guy, and B. S. Cox. 2010. Founding population size of an aquatic invasive species. Conservation Genetics (Online First). 2010-02-28
Horton, T. B., and C. S. Guy. 2002. Habitat use and movement patterns of spotted bass in a Kansas stream. Black Bass: Ecology, Conservation, and Management. American Fisheries Society, Bethesda 2002-12-31
Horton, T. B., J. S. Tillma, and C. S. Guy. 2000. Vulnerability of spotted bass to angling in Kansas streams. Journal of Freshwater Ecology 15:7-11. 2000-03-31
Horton, T. B., C. S. Guy, and J. Pontius. 2004. Influence of tracking-interval on estimations of movement and habitat use. North American Journal of Fisheries Management 24:690-696. 2004-05-31
Holmquist, L. M., C. S. Guy, M. A. H. Webb, and A. Tews. 2019. First maturity and spawning periodicity of hatchery-origin pallid sturgeon in the upper Missouri River above Fort Peck Reservoir, Montana. Journal of Applied Ichthyology 35: 138-148. 2019-02-28
Holmquist, L. M., C. S. Guy, A. Tews, D. J. Trimpe, and M. A. H. Webb. 2019. Reproductive ecology and movement of pallid sturgeon in the upper Missouri River, Montana. Journal of Applied Ichthyology 35:1069-1083 2019-08-31
Hansen, M. J., C. S. Guy, P. Budy, and T. E. McMahon. 2019. Trout as native and non-native species: a management paradox. Pages 645-684 in J. L. Kershner, J. E. Williams, R. E. Gresswell, and J. Lobón-Cerviá. Trout and char of the world. American Fisheries Society, Bethesda, Maryland. 2019-09-30
Guy, C.S., H. B. Treanor, K. M. Kappenman, E. A. Scholl, J. E. Ilgen, and M. A. H. Webb. 2015. Broadening the regulated-river management paradigm: a case history of the forgotten dead zone hindering pallid sturgeon recovery. Fisheries 40:6-14. 2015-01-31
Guy, C. S., and M. L. Brown, editors. 2007. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Maryland. 2007-09-30
Guy, C. S., R. M. Neumann, and D. W. Willis. 2006. New terminology for proportional stock density (PSD) and relative stock density (RSD): proportional size structure (PSS). Fisheries 31(2):86-87 2006-02-28
Guy, C. S., R. M. Neumann, D. W. Willis, and R. O. Anderson. 2007. Proportional size distribution: a further refinement of population size structure index terminology. Fisheries 32(7): 348. 2007-07-31
Guy, C. S., R. D. Schultz, and M. A. Colvin. 2002. Ecology and management of white bass Morone chrysops. North American Journal of Fisheries Management 22:606-608. 2002-05-31
Guy, C. S., R. A. Schultz, and C. A. Cox. 2002. Variation in gonad development, growth, and condition of white bass in Fall River Reservoir, Kansas. North American Journal of Fisheries Management 22:643-651. 2002-05-31
Guy, C. S., P. J. Braaten, D. P. Herzog, J. Pitlo, and R. S. Rogers. 2009. Warmwater rivers. Pages 59-84 in S. Bonar, W. Hubert, and D. Willis, editors. Standard sampling methods for sampling North American freshwater fishes. American Fisheries Society, Bethesda, Maryland. 2009-08-31
Guy, C. S., McMahon, T. E., W. A. Fredenberg, C. J. Smith, D. W. Garfield, and B. S. Cox. 2011. Diet overlap of top-level predators in recent sympatry: bull trout and non-native lake trout in Swan Lake, Montana. Journal of Fish and Wildlife Management 2:183-189. 2011-11-30
Guy, C. S., E. W. Oldenburg, and P. C. Gerrity. 2009. Conditional capture probability for Scaphirhynchus spp. in drifting-trammel nets. North American Journal of Fisheries Management 29:817-822. 2009-05-31
Guy, C. S. 2011. Review of: Biology, management, and conservation of lampreys in North America. The Quarterly Review of Biology 86:62. 2011-05-31
Goodman, B. J., C. S. Guy, S. L. Camp, W. M. Gardner, K. M. Kappenman, and M. A. H. Webb. 2012. Shovelnose sturgeon spawning in relation to varying discharge treatments in a Missouri River tributary. River Research and Applications DOI:10.1002/rra.2587. 2012-07-31
Goeckler, J. M., M. C. Quist, J. A. Reinke, and C. S. Guy. 2003. Population characteristics and evidence of natural reproduction of blue catfish in Milford Reservoir, Kansas. Transactions of the Kansas Academy of Sciences 106:149-154 2003-11-30
Glassic, H. C., K. C. Heim, and C. S. Guy. 2019. Creating figures in R that meet the AFS style guide: standardization and supporting script. Fisheries 44:539-544. 2019-11-30
Glassic, H. C., C. S. Guy, J. J. Rotella, C. J. Nagel, D. A. Schmetterling and S. R. Dalbey. 2020. Fort Peck paddlefish population survival and abundance in the Missouri River. Journal of Applied Ichthyology 36:559-567. https://doi.org/10.1111/jai.14067 2020-06-30
Gido, K. B., C. S. Guy, T. R. Strakosh, R. J. Bernot, K. Mitchell, and M. Shaw. 2002. Long-term changes in the fish assemblages of the Big Blue River basin 40 years after the construction of Tuttle Creek Reservoir. Kansas Academy of Sciences 105:193-208. 2002-12-31
Gerrity, P. C., C. S. Guy, and W. M. Gardner. 2008. Habitat use of juvenile pallid sturgeon and shovelnose sturgeon with implications for water-level management in a downstream reservoir. North American Journal of Fisheries Management 28:832-843. 2008-06-30
Gerrity, P. C., C. S. Guy, and W. M. Gardner. 2006. Juvenile pallid sturgeon are piscivorous: a call for conserving native cyprinids. Transactions of the American Fisheries Society 135:604-609. 2006-05-31
Gates, K., C. Guy, A. Zale, and T. Horton. 2009. Angler awareness of aquatic nuisance species and potential transport mechanisms. Fisheries Management and Ecology 16:448-456. 2009-11-30
Gates, K. K., C. S. Guy, A. V. Zale, and T. B. Horton. 2009. Angler awareness of aquatic nuisance species and potential transport mechanisms. Fisheries Management and Ecology. 2009-10-31
Gates, K. K., C. Guy, A. V. Zale, and T. B. Horton. 2008. Adherence of Myxobolus cerebralis myxospores to waders: implications for disease dissemination. North American Journal of Fisheries Managaement 28:1453-1458. 2008-10-31
Galloway, B. T., C. C. Muhlfeld, C. S. Guy, W. F. Cross, C. C. Downs, and W. A. Fredenberg. 2016. A framework for assessing the feasibility of native fish conservation translocations: applications to threatened bull trout. North American Journal of Fisheries Management 36:754-768. 2016-07-31
Furey, K. M., H. C. Glassic, C. S. Guy, T. M. Koel, J. L. Arnold, P. D. Doepke, and P. E. Bigelow. 2020. Diets of longnose sucker in Yellowstone Lake, Yellowstone National Park, U.S.A. Journal of Freshwater Ecology. https://doi.org/10.1080/02705060.2020.1807421 2020-08-31
Fritz, K. M., J. A. Tripe, and C. S. Guy. 2002. Recovery of three fish species to flood and seasonal drying in a tallgrass prairie stream. Kansas Academy of Sciences 105:209-218. 2002-12-31
Fredenberg, C. R., C. C. Muhlfeld, C. S. Guy, V. S. D'Angelo, C. C. Downs, and J. M. Syslo. 2017. Suppression of invasive lake trout in an isolated backcountry lake in Glacier National Park. Fisheries Management and Ecology 24:33-48. 2017-01-31
Franssen, N. R., K. B. Gido, C. S. Guy, J. A. Tripe, S. J. Schrank, T. R. Strakosh, K. N. Bertrand, C. M. Franssen, K. L. Pitts, and C. P. Paukert. 2006. Effects of floods and intermittence on fish assemblages in a prairie stream. Freshwater Biology 51:2072-2086 2006-10-31
Ferguson, J. M., M. L. Taper, C. S. Guy, and J. M. Syslo. 2012. Mechanisms of coexistence between native bull trout (Salvelinus confluentus) and non-native lake trout (Salvelinus namaycush): inferences from pattern-oriented modeling. Canadian Journal of Fisheries and Aquatic Sciences 69:755-769. 2012-02-28
Dux, A. M., C. S. Guy, and W. A. Fredenberg. 2011. Spatiotemporal distribution and population characteristics of a nonnative lake trout population, with implications for suppression. North American Journal of Fisheries Management 31:187-196. 2011-07-31
Delp, J. G., J. S. Tillma, M. C. Quist, and C. S. Guy. 2000. Age and growth of four centrarchid species in southeastern Kansas streams. Journal of Freshwater Ecology 15:475-478. 2000-12-31
Cox, C. A., R. A. Schultz, and C. S. Guy. 2001. Diets of white bass in Fall River Reservoir, Kansas. Journal of Freshwater Ecology 16:429-433. 2001-06-30
Cox, B. S., C. S. Guy, W. A. Fredenberg, and L. R. Rosenthal. In review. Baseline demographics of a non-native lake trout population and inferences for suppression from sensitivity-elasticity analyses. Fisheries Management and Ecology. doi:10.1111/fme.12024. 2013-02-28
Cox, B. S., A. M. Dux, M. C. Quist, and C. S. Guy. 2012. Use of seismic air gun to reduce survival of non-native lake trout embryos: a tool for conservation? North American Journal of Fisheries Management 32:292-298. 2012-04-30
Burlingame, M. N., and C. S. Guy. 2000. Diversity among anglers in Kansas: A focus on channel catfish anglers. Catfish 2000: proceedings of the international ictalurid symposium. American Fisheries Society, Symposium 24, Bethesda, Maryland. 2000-01-31
Brown, P. J., C. S. Guy, and M. H. Meeuwig. 2017. A comparison of two mobile electrode arrays for increasing mortality of Lake Trout embryos. North American Journal of Fisheries Management 37:363-369. 2017-03-31
Brown, M. L., and C. S. Guy. 2007. Science and statistics in fisheries research. Pages 1-29 in C. S. Guy and M. L. Brown, editors. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Maryland. 2007-09-30
Braaten, P. J., and C. S. Guy. 2004. First-year growth and overwinter survival of freshwater drum in the lower channelized Missouri River. Transactions of the American Fisheries Society 133:385-398. 2004-02-28
Braaten, P. J., and C. S. Guy. 2002. Life history attributes of fishes along the latitudinal gradient of the Missouri River. Transactions of the American Fisheries Society 131:931-945. 2002-09-30
Braaten, P. J., and C. S. Guy. 1999. Relations between physicochemical factors and abundance of fishes in tributary confluences of the lower channelized Missouri River. Transactions of the American Fisheries Society. 1999-11-30
Braaten, P. J., M. R. Doeringsfeld, and C. S. Guy. 1999. Comparison of age and growth estimates for river carpsuckers using scales and dorsal fin ray sections. North American Journal of Fisheries Management 19:786-792. 1999-11-30
Boyer, J. K., C. S. Guy, M. A. H. Webb, T. B. Horton, and T. E. McMahon. 2017. Reproductive ecology, spawning behavior, and juvenile distribution of mountain whitefish in the Madison River, Montana. Transactions of the American Fisheries Society 146:939-954. 2017-07-31
Boyer, J. K., C. S. Guy, M. A. H. Webb, T. B. Horton, and T. E. McMahon. 2017. Gear comparison for sampling age-0 mountain whitefish in the Madison River, Montana. North American Journal of Fisheries Management 37:189-195. 2017-01-31
Boyd, J. W., C. S. Guy, T. B. Horton, and S. A. Leathe. 2010. Effects of catch-and-release angling on salmonids at elevated water temperatures. North American Journal of Fisheries Management 30:898-907. 2010-09-30
Bister, T. J., D. W. Willis, M. L. Brown, S. M. Jordan, R. M. Neumann, M. C. Quist, and C. S. Guy. 2000. Proposed standard weight (Ws) equations and standard length categories for 18 warmwater nongame and riverine fish species. North American Journal of Fisheries Management 20:570-574. 2000-05-31
Bertrand, K. N., K. B. Gido, and C. S. Guy. 2006. An evaluation of single-pass versus multiple-pass backpack electrofishing to estimate trends in species abundance and richenss in prairie streams. Transactions of the Kansas Academy of Science 109:131-138. 2006-07-31
Bernot, R. J., W. K. Dodds, M. C. Quist, and C. S. Guy. 2006. Temperature and kairomone induced life history plasticity in coexisting Daphnia. Aquatic Ecology 40:361-372. 2006-12-31
Bernot, R. J., W. K. Dodds, M. C. Quist, and C. S. Guy. 2004. Spatial and temporal variability of zooplankton in a Great Plains reservoir. Hydrobiologia 525:101-112. 2004-08-31
Bernot, R. J., W. K. Dodds, M. C. Quist, and C. S. Guy. 2004. Larval fish-induced phenotypic plasticity of coexisting Daphnia: an enclosure experiment. Freshwater Biology 49:87-97. 2004-01-31
Bellgraph, B. J., C. S. Guy, W. M. Gardner, and S. A. Leathe. 2008. Competition potential between saugers and walleyes in nonnative sympatry. Transactions of the American Fisheries Society 137:790-800. 2008-04-30
Project Completion Date
Evaluations of Methods to Introduce Mortality in Lake Trout Embryos 2018-01-31
Reproductive readiness and behavioral ecology of wild hatchery-reared pallid sturgeon in the Missouri River above Fort Peck Reservoir, Montana 2017-06-30
Evaluation of juvenile bull trout outmigration in Thompson Falls Reservoir 2016-12-31
Electroshocking to Induce Mortality of Lake Trout Embryos in Yellowstone Lake 2015-06-30
Annual Evaluation and Development of Benchmarks for Lake Trout Suppression in Yelowstone Lake 2018-06-01
Assessment of Carbon Dioxide to Enhance Winter Kill in Natural Rearing Ponds used for Fish Production in the Northcentral Region 2013-12-31
Spawning Characteristics and Early Life History of Mountain Whitefish in the Madison River, Montana 2015-06-30
Density of Pallid Sturgeon and Food Web Dynamics in the Missouri River 2017-12-31
Environmental and endogenous factors affecting egg quality and caviar yield in farmed sturgeon 2017-07-31
Diet and temperature effects on growth of pallid and shovelnose sturgeon 2014-09-30
Use of Mobile Electrofishing to Induce Mortality in Lake Trout Embryos 2014-06-30
Exploitation, Abundance and Large-Scale Movements of Burbot in the Upper Wind River Drainage 2014-06-30
Spawning of Pallid Sturgeon and Shovelnose Sturgeon in an Artificial Stream 2014-07-31
Determining Ripeness in White Sturgeon Females to Maximize Yield and Quality of Caviar 2017-03-31
Effects of the Reservoir Headwater Environment on Survival and Behavior of Larval Sturgeon 2011-10-30
Upper Missouri River Basin Pallid Sturgeon Study 2011-09-30
Lake Trout Suppression in Yellowstone Lake: Developing Benchmarks for Harvest and Sampling Design to Measure Efficacy. 2014-06-30
Feasiblity Assessment for Translocation of Imperiled Bull Trout Populations in Glacier National Park. 2012-12-31
Quantify and prioritize lake trout spawning habitat for suppression 2023-12-31
Spawning Characteristics and an Assessment of Juvenile Sampling Methods and Habitat for Mountain Whitefish in the Green River, Wyoming 2022-06-30
Using Carcass and Carcass-Analog Material to Increase Lake T... 2021-12-31
Quantifying Brown Trout and Lake Trout predation on Burbot and Mountain Whitefish 2023-06-30
Enhancing survival and condition of first feeding larval pallid sturgeon through diet 2022-12-31
Preliminary analysis of paddlefish data from the Missouri River above Ft. Peck Reservoir with a focus on population abundance and survival 2019-06-30
Bull Trout Emigration Study 2021-12-31
Quantifying spawning locations and habitat use by adult lake trout in Swan Lake, Montana 2022-10-31
Spawning readiness, spawning location(s), and habitat use of pallid sturgeon in the Missouri River above Fort Peck Reservoir, Montana 2020-06-30
Reproductive indices of hatchery-origin white sturgeon in the lower Columbia River, Canada 2020-06-30
Lake Roosevelt burbot maturation study 2019-01-31
Lake trout population modeling and annual assessment of suppression netting 2021-08-31
Mobile tracking of lake trout on Yellowsttone Lake 2019-08-31
Enhancing native fisheries through the USFWS Propagation Program in Region 6 2017-09-30
Buffalo Bill Reservoir walleye suppression 2018-06-30
Name Degree Program Status Completion Date
Siemiantkowski, Michael Master's Active None
Lewis, Madeline Master's Active None
Cox, Tanner Master's Active None
Glassic, Hayley PhD Active None
Scholl, Eric PhD Active None
Presentations Presentation Date
Williams, J., C. Guy, T. Koel, and P. Bigelow. 2018. Finding Lake Trout Aggregations in Yellowstone Lake to Improve Suppression Efficacy. Montana Chapter of the American Fisheries Society. 2018-01-29
Williams, J., C. Guy, T. Koel, and P. Bigelow. 2018. Identifying non-native lake trout spawning locations in Yellowstone Lake to improve suppression efficacy. Western Division of the American Fisheries Society. PLATFORM. 2018-05-24
Thomas, N., C. Guy, T. Koel, and A. Zale. 2017. Evaluation of suppression methods targeting non-native lake trout embryos in Yellowstone Lake. Annual Meeting of the Western Division of the American Fisheries Society, Missoula, Montana, 22-25 May 2017. 2017-05-23
Thomas, N., C. Guy, T. Koel, A. Zale, A. Poole. 2018. Evaluation of suppression methods targeting non-native lake trout embryos in Yellowstone Lake. Montana Chapter of the American Fisheries Society. 2018-01-30
Thomas, N. A., T. M. Koel, C. S. Guy, P. D. Doepke, D. J. MacDonald, A. S. Poole, W. M. Sealey, and A. V. Zale. 2020. Integrated pest management: from experimental evaluation to implementation of Lake Trout embryo suppression in Yellowstone Lake. Annual Meeting of the Montana Chapter of the American Fisheries Society, Kalispell, Montana, 25-28 February 2020. 2020-02-26
Syslo, J. M., J. H. Powell, C. S. Guy, J. L. Arnold, and T. M. Koe. 2013. Evaluation of sampling designs for detecting change relevant to management objectives in Yellowstone Lake, Yellowstone National Park. 46th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2013-02-06
McGarvey, L. M., C. S. Guy, J. G. McLellan, and M. A. H. Webb. 2018. The assessment of ultrasound and plasma sex steroid concentrations to assign sex and stage of maturity in wild Burbot. Montana Chapter of the American Fisheries Society. 2018-01-30
McCullough, A., C. S. Guy, T. Horton. 2016. Factors influencing abundance of Arctic grayling in the Bighole River. Montana Chapter of the American Fisheries Society. 2016-02-18
Maskill, P. A. H., J. A. Crossman, C. S. Guy, L. J. Halvorson, and M. A. H. Webb. 2017. Determining sex and stage of maturity of hatchery origin white sturgeon in the lower Columbia River, Canada. American Fisheries Society Meeting. 2017-08-15
Maskill, P. A. C., J. A. Crossman, C. S. Guy, L. J. Halvorson, and M. A. H. Webb. 2018. Determining sex and stage of maturity of hatchery origin white sturgeon in the lower Columbia River, Canada. Montana Chapter of the American Fisheries Society. 2018-01-30
Lewandoski, S., and C. Guy, J. Deromedi, P. Gerrity, and K. Johnson. 2014. Exploitation and population dynamics of burbot in the upper Wind River drainage. 2014 Annual Meeting of the Colorado-Wyoming Chapter of the American Fisheries Society. PLATFORM 2014-03-10
Leathe, S., A. Tews, and C. S. Guy. 2014. Evolution of a strategy to monitor minnow abundance in the middle Missouri River. 47th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2014-02-13
Kaus, D., C. S. Guy, J. Burckhardt, and T. Neebling. 2018. Feasibility of non-native walleye population suppression in Buffalo Bill Reservoir, Wyoming. Montana Chapter of the American Fisheries Society. 2018-01-29
Holmquist, L. M., M. A. H. Webb, and C. S. Guy. 2015. Do Reproductively Active Hatchery-Reared and Released Pallid Sturgeon Behave like Reproductively Active Wild Pallid Sturgeon? 2105 North American Sturgeon and Paddlefish Society Meeting. 2015-10-21
Holmquist, L. M., M. A. H. Webb, C. S. Guy. 2016. Reproductive Ecology of Hatchery-Reared and Wild Pallid Sturgeon in the upper Missouri River. Montana Chapter of the American Fisheries Society 2016-02-18
Guy, C. S., H. B. Treanor, K. M. Kappenman, E. A. Scholl, J. E. Ilgen, and M. A. H. Webb. 2014. River-reservoir transition zone is an ecological sink for pallid sturgeon. 2014 Upper Basin Pallid Sturgeon Recovery Team meeting. PLATFORM 2014-03-10
Guy, C. S., H. B. Treanor, K. M. Kappenman, E. A. Scholl, J. E. Ilgen, and M. A. H. Webb. 2014. Forgotten dead zone hinders pallid sturgeon recovery. 47th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2014-02-13
Guy, C. S., H. B. Treanor, K. M. Kappenman, E. A. Scholl, J. E. Ilgen, and M. A. H. Webb. 2014. Forgotten dead zone hinders pallid sturgeon recovery. 2014 Missouri River Natural Resources Conference and BiOp forum. PLATFORM 2014-03-20
Glassic, H, C. Guy, J. Rotella, C. Nagel, D. Schmetterling. 2019. Survival and abundance of paddlefish in the Missouri River above Ft. Peck Reservoir. 149th Annual Meeting of the American Fisheries Society. 2019-10-02
Glaid, J., C. S. Guy, L. B. Mabbott. 2016. Outmigration dynamics of subadult bull trout in the Thompson River drainage, Montana. Montana Chapter of the American Fisheries Society. 2016-02-18
Fredenberg, C. R., C. C. Muhlfeld, C. S. Guy, and C. C. Downs. 2013. Lake trout suppression in an isolated backcountry lake in Glacier National Park. 46th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2013-02-06
Dutton, A., C. Guy, E. Scholl, T. Cox, N. Beckman, W. Cross, J. Rotella. Guiding conservation of Pallid Sturgeon through the use of food webs. American Fisheries Society Meeting. 2017-08-15
Dutton, A., C. Guy, E. Scholl, N. Beckman, W. Cross. J. Rotella. 2016. Diet overlap of two sturgeon species in the Missouri and Yellowstone Rivers. Montana Chapter of the American Fisheries Society. 2016-02-18
Dutton, A., C. Guy, E. Scholl, N. Beckman, W. Cross. 2016. Diet overlap between pallid sturgeon and shovelnose sturgeon in the Missouri and Yellowstone rivers. 2016 Midwest Fish and Wildlife Conference. 2016-01-25
DeVries, R., and H. Schramm. 2014. Similarities and differences in 13C and 15N stable isotope ratios in two non-lethal tissue types from shovelnose sturgeon Scaphirhynchus platorynchus. Southern Division, American Fisheries Society, Charleston, South Carolina. 2014-01-25
Cox, T., C. Guy, M. Webb, and L. Holmquist. 2019. Reproductive Ecology of Hatchery-origin Pallid Sturgeon: A New Hope. 149th Annual Meeting of the American Fisheries Society. 2019-10-02
Cox, T. A. Dutton, C. Guy. 2017. Gape size of two sturgeon species in the upper Missouri River. American Fisheries Society. 2017-08-15
Cook, K., A. Zale, D. Stagliano, M. Anderson, C. Guy, L. Albertson, and C. Barnhart. 2020. Reproductive timing of Western Pearlshell mussels in Montana. Annual Meeting of the Montana Chapter of the American Fisheries Society, Kalispell, Montana, 25-28 February 2020. 2020-02-25
Cook, K., A. Zale, D. Stagliano, M. Anderson, C. Guy, L. Albertson, and C. Barnhart. 2020. Reproductive timing of Western Pearlshell mussels in Montana. 2020 Symposium of the Pacific Northwest Native Freshwater Mussel Workgroup, Vancouver, Washington, 26 March 2020. 2020-03-26
Burckhardt, J. C., T. E. Neebling, D. J. Kaus, C. F. Johnson, C. S. Guy, and B. M. Johnson. 2018. Assessing the effects and probability of suppression of an illegally introduced walleye population. Western Division of the American Fisheries Society. 2018-05-24
Brown, P., C. S. Guy, L. Rosenthal, T. Koel, and R. Gresswell. 2014. An electrode array for increasing lake trout embryo mortality. 47th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2014-02-13
Brown, P. J., M. H. Meeuwig, and C. S. Guy. 2013. Efficacy of lake trout embryo destruction using a mobile electrode array. 46th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2013-02-06
Boyer, J. K., C. S. Guy, M. A. H. Webb, and T. Horton. 2014. Behavioral ecology of mountain whitefish during spawning in the Madison River, Montana: implications for juvenile distribution. 47th Annual Meeting of the Montana Chapter, American Fisheries Society. PLATFORM 2014-02-13
Boyer, J. K., C. S. Guy, M. A. H. Webb, and T. B. Horton. 2015. Understanding an overlooked native salmonid: spawning and early-life distribution of mountain whitefish in the Madison River, Montana. 2015-11-01
Technical Publications Publication Date
Meeuwig, M. H., and C. S. Guy. 2007. Evaluation and action plan for protection of 15 threatened adfluvial populations of bull trout in Glacier National Park, Montana. Final Scientific Report, U.S. Fish Wildlife Service. 2007-08-31
Jones-Wuellner, M. R., and C. S. Guy. 2004. Status of burbot in Montana. Montana Fish, Wildlife and Parks, Helena. 2004-12-31
Guy, C. S., and M. R. Whiles. 2000. Assessment of physicochemical and landscape features influencing Topeka shiner (Notropis topeka) distribution in Kansas streams. Final Report, U.S. Geological Survey. 2000-01-31
Fredenberg, W. A., M. H. Meeuwig, and C. S. Guy. 2007. Action plan to conserve bull trout in Glacier National Park, Montana. Final report, U.S.G.S. Montana Cooperative Fishery Research Unit, Bozeman. 2008-12-31
Dux, A. M., and C. S. Guy. 2004. Evaluation of fish assemblages and habitat variables in streams bisecting the Going-to-the-Sun Road and peripheral roads in Glacier National Park. Glacier National Park, West Glacier. 2004-12-31
Doepke, P. D., T. M. Koel, C. S. Guy, A. S. Poole, N. A. Thomas, and A. V. Zale. 2017. Lake Trout suppression alternatives to gillnetting. Yellowstone Science 25(1):70-73. 2017-01-31
Cox, B. S., M. C. Quist, A. M. Dux, and C. S. Guy. 2011. Use of seismic air guns to reduce survival of salmonid eggs and embryos: a pilot study. Idaho Department of Fish and Game Report Number 11-04. 2011-11-30