CSU FISHERIES ECOLOGY LABORATORY
Dr. Brett Johnson's Students and Postdocs
Devin Olsen - MS 2014
Research to Maximize the Sport Fishery Potential at Dillon Reservoir (thesis topic TBD)
*Supported by: Denver philanthropist
Bill Pate - MS 2012
Management strategies to sustain kokanee and lake trout at Blue Mesa Reservoir
*Supported
by:
Brian Wolff
Emigration
of nonnative fishes from reservoirs in the Upper Colorado River basin
*Supported
by:
Dan Gibson-Reinemer
Forensic
applications of otolith microchemistry for tracing sources
of illegally stocked fishes
*Supported
by: Whirling
Disease Initiative, CDOW, West Denver TU
Publications: Gibson-Reinemer, D.K., B.M. Johnson, P.J. Martinez, D.L. Winkelman, A. E. Koenig, and J.D. Woodhead. 2009. Elemental signatures in otoliths of hatchery trout: distinctiveness and utility for detecting origins and movement. Canadian Journal of Fisheries and Aquatic Sciences 66:513-524.
Marci L. Koski
Effects
of multiple stressors on energetics, behavior and
predation risk of kokanee salmon
*Supported by: USDA Fellowship, BOR
Harry Crockett
Effects
of seasonal changes in reservoir structure on lake trout foraging behavior
*Supported by: BOR, CDOW, NPS
Publications: Crockett, H. J., B. M. Johnson, P. J. Martinez, and D. Brauch. 2006. Modeling target strength distributions to iImprove hydroacoustic estimation of lake trout population size. Transactions of the American Fisheries Society 135:1095–1108.
Jill Hardiman
Survival,
growth and behavioral ecology of kokanee salmon
*Supported by: BOR, NPS, CDOW
Publications: 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.
Koren Nydick
(co-advised with Dr. Jill Baron)
Effects
of Atmospheric Nitrogen Deposition on the Productivity and Chemistry
of High-Elevation Lakes in the Western U.S.
*Supported by: NPS, Canon Fellowship
Publications: 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.
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.
Brenda Moraska (Lafrancois)- PhD
2002
(co-advised with Dr. Jill Baron)
(Brenda at left)
Effects
of atmospheric nitrogen on the structure of alpine lake food webs
*Supported by: NPS
Publications: 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.
Moraska, B.M., D. M. Carlisle, K. R. Nydick, B. M. Johnson, and J. S. Baron. 2003. Environmental characteristics and benthic invertebrate assemblages in Colorado mountain lakes. Western North American Naturalist 63:137-154.
Marci L. Koski
Kokanee salmon foraging ecology
*Supported by: BOR
Publications: 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.
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.
Stephen K. Johnson
Acoustic
target strength estimates of opossum shrimp (Mysis
relicta) using a split beam echosounder
*Supported by: CDOW
Nicole K. MacRury (Vieira)
Influence of parasites and organchlorines on bioenergetics and feeding behavior of largemouth bass
*Supported
by:
Publications: MacRury,
N. K., B. D. S. Graeb, B. M. Johnson and W. H.
Clements. 2002. Comparison of dietary mercury exposure in two
sympatric top predator fishes, largemouth bass and northern pike: a
bioenergetics modeling approach. Journal of Aquatic Ecosystem Stress and Recovery
9:137-147.
MacRury, N. and B. M. Johnson. 1999. Sublethal Responses of Largemouth Bass to Parasites and Organochlorines. Environmental Toxicology and Chemistry 18:998-1006.
Michael J. Wise
Daphnia sampling efficiency and the relative influence of kokanee predation on Daphnia population dynamics
in Blue Mesa Reservoir
*Supported
by: BOR
Sue Swift-Miller
Ecology
and conservation of Rio Grande sucker (Catostomus plebeius)
*Supported by: CDOW, USFS
Publications: Swift-Miller,
S. M., B. M. Johnson, and R. T. Muth. (In Press).
Environmental factors and the diet, distribution, and abundance of Rio Grande
(Catostomus plebeius)
sucker throughout its northern range. Southwestern Naturalist.
Swift-Miller, S. M., B. M. Johnson, R. T. Muth, and D. Langlois. (In Press). Distribution, abundance, and habitat use of RioGrande sucker in Hot Creek, Colorado. Southwestern Naturalist.
Dr. Jesse Lepak
Management
of mercury bioaccumulation in Colorado reservoirs
*Supported by: CDOW, CDPHE
Dr. Greg Whitledge
Provenance
of nonnative centrarchids in the upper Colorado River
*Supported by: USFWS, CDOW
Publications: Whitledge, G. W., B. M. Johnson and P. J. Martinez. 2006. Stable hydrogen isotopic composition of fishes reflects that of their environment. Canadian Journal of Fisheries and Aquatic Sciences 63:1746-1751.
Whitledge, G. W., B. M. Johnson, P. J. Martinez, and A. M. Martinez. 2007. Sources of nonnative centrarchids in the upper Colorado River revealed by stable isotope and microchemical analyses of otoliths. Transactions of the American Fisheries Society 136: 1263–1275.
Dr. Laurel Saito
Effects
of climate and dam operations on reservoir thermal structure and food webs
*Supported by: USGS, BOR
Publications: Saito L, Koski M. 2006. Simulated effects of
spillway releases on thermal structure and kokanee growth in a Colorado reservoir. Journal of the American Water Resources
Association 42(3):645-658.
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.
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.
Saito, L., R.B. Hanna, J. Bartholow, and B. Johnson. 1999.
Linking hydrodynamic and ecological models at Shasta Lake. Proceedings
of the American Society of Civil Engineers Water Resources Planning and
Management Conference, Tempe, AZ
Dr. Jason Stockwell
Bioenergetics
of foraging by kokanee (Oncorhynchus
nerka)
*Supported by: BOR, CDOW
Publications: 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.
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.
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.
Recent Undergraduate Alumni
Nate Cathcart, BS Fishery Biology, 2011
Next position: Research Associate, Colorado Division of Parks and Wildlife
Will Stacy, BS, Fishery Biology 2010
Next position:
Stacy Grannum, BS 2010
Next position: CSU Veterinary Medicine School
Eric Gardunio, BS, Fishery Biology, Minor: Statistics, 2008
Next position: Crew Leader, Wyoming Game and Fish Dept.
Ben Felt, BS, Fishery Biology, 2007
Next position: MS program, Michigan State University
(No image)
Adam Thompson, BS, Fishery Biology, 2007
Next position: MS program,
Ohio State University
Scott Murdoch, BS, Fishery Biology, 2007
(No image)
Michael Dodrill,
Next position: Seasonal, CO Division of Wildife, Monte Vista, CO
Kelli Rehder,
Next position: ARCADIS U.S.,
Inc., Highlands Ranch, CO
Mario Sullivan, BS, Fishery Biology, 2005
Next position: MS, Western Kentucky University
(No image)
Brian Wolff,
Next position: Aquatic Biologist, Downtown Aquarium, Denver, CO
Randy Oplinger, BS, Fishery Biology, 2004
Next position: MS program,
University of Illinois
Alissa Gigliotti, BS, Fishery Biology, 2003
Next position: Research Associate, Colorado Cooperative Fish and Wildlife Research Unit
Josh Hobgood, BS Fishery Biology, 2001
Next position: Teacher Education Program, CSU School of Education
Tori Stecklein, BS Zoology, 2000
*Abbreviations
BOR = United States Bureau of Reclamation
CDOW = Colorado Division of Wildlife
CDPHE = Colorado Dept of Public Health and Environment
NPS = National Park Service
TU = Trout Unlimited
USDA = United States Department of Agriculture
USFWS = United States Fish and Wildlife Service
Brett Johnson's webpage
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