Dr. Brett Johnson's Fisheries Ecology Lab at CSU

Food Web Dynamics in Colorado's Coldwater Reservoirs
Scientific Papers and Progress Reports

Johnson, B.M., R. Arlinghaus, and P.J. Martinez. 2009. Are we doing all we can to stem the tide of illegal fish stocking? Fisheries 34(8): 389-394.

Johnson, B.M., A. Abeyta, K. Bentley, M. Brandt, M. Burton, J. Charles, C. Cross, J. Fike, A. Graham, W. Hibbs, M. Kuti, J. Mangels, T. Martyn, W. Pate, J. Restad, R. Santistevan, R. Schmidt, and K. Stockton. 2009. Rifle Gap Reservoir fishery investigation. Final Report, Colorado State University, Fort Collins, CO.

Johnson, B.M., J. Butteris, C. M. Clapp, S. D. Cossey, C. C. Deguelle, M. J. Dodrill, R. E. Dritz, D. A. Falconi, R. T. Fortier, T. L. Goodin, A. G. Hansen, E. A. Heinzmann, D. A. Herasimtschuk, A. R. Koch, L. J. Marsh, M. M. McGree, K. M. Miller, S. R. Murdoch, D. T. Norcross, A. L. Nowakowski, E. C. Smith, S. G. Stiffler, Z. A. Sutphin, A. L. Thompson, D. W. Tuttle, and L. J. Young. 2009. Effects of an anticipated illegal introduction of walleye into Blue Mesa Reservoir, Colorado. Final Report, Colorado State University, Fort Collins, CO.

Crockett, H. J., B. M. Johnson, P. J. Martinez, and D. Brauch. 2006. Modeling Target Strength Distributions to Improve Hydroacoustic Estimation of Lake Trout Population Size. Transactions of the American Fisheries Society 135:1095–1108.

Johnson, B.M., J. Butteris, and M. Dodrill. 2006. Ecosystem Monitoring during Horsetooth Reservoir Refilling.  Final Report, U.S. Bureau of Reclamation, Eastern Colorado Area Office, Loveland, Colorado.

Johnson, B.M. and M.L. Koski. 2005. Reservoir and food web dynamics at Blue Mesa Reservoir, Colorado, 1993-2002. Final report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 186 pages.

Nydick, K. R., B. M. Moraska Lafrancois, J. S. Baron, and B. M. Johnson. 2004. Nitrogen regulation of algal biomass, productivity, and composition in small mountain lakes, Snowy Range, Wyoming, USA. Canadian Journal of Fisheries and Aquatic Sciences 61:1256-1268.

Lafrancois, B. Moraska, K. R. Nydick, B. M. Johnson, and J. S. Baron. 2004. Cumulative effects of nutrients and pH on the plankton of two mountain lakes. Canadian Journal of Fisheries and Aquatic Sciences 61:1153-1165.

Hardiman, J. M., B. M. Johnson, and P. J. Martinez. 2004. Do predators influence distribution of young-of-year kokanee in a Colorado reservoir? Transactions of the American Fisheries Society 133:1366-1378.

Johnson, B.M., M. Anderson, L. Saito, P. Weiss, M. Andre and D. Fontane. 2004. Effects of climate and dam operations on reservoir thermal structure. Journal of Water Resources Planning and Management 130: 112-122.

Nydick, K. R., B. M. Moraska, J. S. Baron, and B. M. Johnson. 2003. Lake-specific responses to elevated atmospheric nitrogen deposition in the Colorado Rocky Mountains, USA. Hydrobiologia 510:103-114.

Koski, M. L., B. M. Johnson, and T. Stecklein. 2003. Effects of light on size selectivity of kokanee (Oncorhynchus nerka) feeding on Daphnia. Journal of Fish Biology 62:1456-1461.

Koski, M. and B. M. Johnson. 2002. Functional response of kokanee (Oncorhynchus nerka) feeding on Daphnia under a range of light intensities. Canadian Journal of Fisheries and Aquatic Sciences 59(4): 707-716.

Johnson, B. M., P. J. Martinez, and J. D. Stockwell. 2002. Tracking trophic interactions in coldwater reservoirs using naturally occurring stable isotopes. Transactions of the American Fisheries Society 131:1-13.

Saito, L., B. M. Johnson, J. M. Bartholow, and D. G. Fontane. 2001. Interdisciplinary modelling to assess ecosystem effects of reservoir operations. Integrated Water Resources Management Symposium Proceedings, IAHS Publication No. 272, International Association of Hydrological Sciences, Oxford.

Saito, L., B. M. Johnson, J. Bartholow, and R. B. Hanna. 2001. Assessing ecosystem effects of reservoir operations using food web-energy transfer and water quality models. Ecosystems 4:105-125.

Johnson, B. M. and P.J. Martinez.  2000.  Trophic economics of lake trout management in Reservoirs of Differing Productivity. North American Journal of Fisheries Management 20:115-131.

Johnson, B. M. and J. P. Goettl, Jr.  1999.  Food Web Changes Over 14 Years Following a Rainbow Smelt Introduction in a Colorado Reservoir. North American Journal of Fisheries Management 19:629-642.

Stockwell, J. D. and B. M. Johnson.  1999. Field evaluation of a bioenergetics-based foraging model for kokanee (Oncorhynchus nerka).  Canadian Journal of Fisheries and Aquatic Sciences 56(Suppl. 1):140-151..

Johnson, B. M., M. L.. Koksi, and M. Anderson. 1999.  Refine Modeling Tools to Forecast Effects of Dam Operations on Reservoir Food Webs.  Progress report, U.S. Bureau of Reclamation, Salt Lake City, UT, 62 pages.

Johnson, B. M. and B. Graeb.  1999.  Zooplankton Dynamics at Horsetooth and Carter Reservoirs. Big Thompson Watershed Forum, Watershed Assessment Committee, Loveland, CO.

Stockwell, J.D., K.L. Bonfantine, and B.M. Johnson. 1999. Kokanee foraging: a Daphnia in the stomach is worth two in the lake. Transactions of the American Fisheries Society 128:169-174.

Johnson, B. M. and J. D. Stockwell.  1998.  Ecological effects of reservoir operations at Blue Mesa Reservoir.  Progress report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 65 pages.

Johnson, B. M. and M. Andre.  1998.Refine Modeling Tools to Forecast Effects of Dam Operations on Reservoir Food Webs.  Progress report, U.S. Bureau of Reclamation, Salt Lake City, UT, 23 pages.

Martinez, P. J.  1998.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-242R-3, Progress Report, Fort Collins.

Johnson, B.M., J.D. Stockwell, K. Bonfantine. 1997.  Ecological effects of reservoir operations on Blue Mesa Reservoir. Progress report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 145 pages.

Martinez, P. J.  1997.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-242R-3, Progress Report, Fort Collins.

Stockwell, J. D. and B. M. Johnson. 1997.  Refinement and calibration of a bioenergetics-based foraging model for kokanee (Oncorhynchus nerka). Canadian Journal of Fisheries and Aquatic Sciences 54:2659-2676.

Goettl, J. P. Jr., and B. M. Johnson.  1996.  Forage Fish Studies.  Federal Aid Project F-240-R3,  Progress report.  Colorado Division of Wildlife, Fort Collins, Colorado, 73 pages.

Johnson, B.M., M.J. Wise, B. Herwig, R.G. Szerlong, D. Faber, and B. Byall. 1996.  Ecological effects of reservoir operations on Blue Mesa Reservoir. Progress report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 124 pages.

Martinez, P. J.  1996.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-242R-3, Progress Report, Fort Collins.

Johnson, B. M. and P. J. Martinez.  1995.  Selecting harvest regulations for recreational fisheries: opportunities for research/management cooperation.  Fisheries 20(10):22-29.

Johnson, B.M., M.J. Wise, C. J. Counard, and R.G. Szerlong.  1995.  Ecological effects of reservoir operations on Blue Mesa Reservoir. Progress report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 160 pages.

Martinez, P. J.  1995.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-242R-2, Progress Report, Fort Collins.

Martinez, P. J. and W. J. Wiltzius.  1995.  Some factors affecting a hatchery-sustained kokanee population in a fluctuating Colorado reservoir.  North American Journal of Fisheries Management 15:220-228.

Goettl, J. P. Jr., and B. M. Johnson.  1995.  Forage Fish Studies.  Federal Aid Project F-240-R2,  Progress report.  Colorado Division of Wildlife, Fort Collins, Colorado, 38 pages.

Goettl, J. P. Jr., and B. M. Johnson.  1994.  Forage Fish Studies.  Federal Aid Project F-53-R, Final report.  Colorado Division of Wildlife, Fort Collins, Colorado, 91 pages.

Johnson, B.M.  1994.  Preliminary investigations into food web dynamics in Horsetooth Reservoir, Colorado.  Progress report, Colorado Division of Wildlife, Fort Collins, Colorado.

Johnson, B.M.  1994.  Quantifying the role of lake trout in mountain reservoir food webs.  Progress report, Colorado Division of Wildlife, Fort Collins, Colorado.

Johnson, B.M.  1994.  Ecological effects of reservoir operations on Blue Mesa Reservoir. Progress report, U.S. Bureau of Reclamation, Grand Junction, Colorado, 54 pages.

Martinez, P. J.  1994.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-85, Progress Report, Fort Collins.

Martinez, P. J.  1993.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-85, Progress Report, Fort Collins.

Johnson, B. M., R. S. Stewart, S. J. Gilbert, C. Luecke, and J. F. Kitchell.  1992. Forecasting the effects of gamefish stocking and harvest regulations on the planktivore community in a eutrophic lake. North American Journal of Fisheries Management 12:797-807.

Martinez, P. J.  1992.  Coldwater Reservoir Ecology.  Colorado Division of Wildlife, Federal Aid in Sport Fish Restoration, Project F-85, Progress Report, Fort Collins.

Martinez, P. J.  and E. P. Bergersen.  1991.  Interactions of zooplankton, Mysis relicta, and kokanees in Lake Granby, Colorado.  American Fisheries Society Symposium 9:49-64.

Martinez, P. J. 1986.  Zooplankton and kokanee interactions in Lake Granby, Colorado, and management of introduced Mysis.  M. SC. Thesis.  Department of Fishery and Wildlife Biology, Colorado State University, Fort Collins, Colorado.

Field work at Rifle Gap Reservoir (photo: Willow Hibbs)