Publications, Reports, and Presentations
Additional Publications
Links to other recent publications and reports are available on the Aquatic Research Projects page.
Amphibian Research
- Using digital photographs and pattern recognition to identify individual Boreal Toads (2015) Note: the paper available here is the revision submitted to the journal, not the version of record. If you are interested in the version of record, please contact Kevin Thompson (kevin.thompson@state.co.us) for a reprint.
- Gape Width: An Alternative to Snout-Vent Length for Characterizing Anuran Size (December 2009)
- Detecting Batrachochytrium dendrobatidis in the Wild When Amphibians Are Absent (2009)
- Boreal Toad Reports
Bibliography of Publications, Reports, and Presentations
- 2022 - 2023
- 2021 - 2022
- 2020 - 2021
- 2019 - 2020
- 2018 - 2019
- 2017 - 2018
- 2016 - 2017
- 2015 - 2016
- Aquatic Video and Audio Presentations
Colorado Coldwater Stream Ecology Investigations
- Colorado Coldwater Stream Ecology Investigations (August 2021) – Job Progress Report
- Colorado Coldwater Stream Ecology Investigations (August 2020) – Job Progress Report
Colorado River Aquatic Resources Investigations
- Colorado River Aquatic Resource Investigations (August 2019) - Job Progress Report
- Colorado River Aquatic Resource Investigations (October 2018) - Job Progress Report
- Colorado River Aquatic Resource Investigations (August 2017) - Job Progress Report
- Evaluation of an Electric Fish Barrier on the South Canal, an Irrigation Ditch on the Lower Gunnison River, Colorado
- Colorado River Aquatic Resources Investigations (August 2016) - Job Progress Report
- Colorado River Aquatic Resources Investigations (August 2015) - Job Progress Report
- Colorado River Aquatic Resources Investigations (August 2014) - Job Progress Report (9.5 MB)
- Colorado River Aquatic Resources Investigations (August 2013) - Job Progress Report
- Colorado River Aquatic Resources Investigations (August 2012) - Job Progress Report
- Colorado River Aquatic Resources Investigations (June 2011) - Job Progress Report
Coldwater Lakes and Reservoir Ecology
- Colorado Coldwater Stream Ecology Investigations (August 2023) – Job Progress Report
- Colorado Coldwater Stream Ecology Investigations (August 2022) – Job Progress Report
- Colorado Coldwater Stream Ecology Investigations (August 2021) – Job Progress Report
- Colorado Coldwater Stream Ecology Investigations (August 2020) – Job Progress Report
- Lake and Reservoir Research (2023) – Annual Report
- Coldwater Lake and Reservoir (2022) - Annual Report
- Coldwater Lake and Reservoir (2021) - Annual Report
- Coldwater Lake and Reservoir (2020) - Annual Report
- Summer Profundal Index Netting (SPIN) (2018)
- Trophic Compression of Lake Food Webs Under Hydrologic Disturbance (2018)
- Coldwater Lake and Reservoir Research Projects (May 2018) - Annual Report
- Energy Density and Dry Matter Content in Fish (2017)
- Lake and Reservoir Food Web Ecology (September 2014) - Job Progress Report
- Management for Coexistence of Kokanee and Trophy Lake Trout in a Montane Reservoir (2014)
- Lake and Reservoir Food Web Ecology (2013) - Annual Report
- Lake and Reservoir Food Web Ecology (2012) - Annual Report
- Hydroclimate Mediates Effects of a Keystone Species in a Coldwater Reservoir (2012)
Johnson, Brett M., Martinez, Patrick J. Lake and Reservoir Management, 28:1, 70-83 - SONAR Survey Report (2012) - Progress Report
- Coldwater Reservoir Ecology (2010) - Progress Report
- A Compendium of Crustacean Zooplankton and Mysid Diluviana Collections From Selected Colorado Reservoirs and Lakes (January 2010) (20MB)
Martinez, Patrick J., Gross, Michael D., Vigil, Estevan M. - Western Lake Trout Woes (September 2009)
Martinez, P. J., Bigelow, P. E., Deleray, M A., Fredenberg, W. A., Hansen, B. S., Horner, N. J., Lehr, S. K., Schneidervin, R. W., Tolentino, S. A., and A. E. Viola. 2009. Western Lake Trout Woes. Fisheries 34(9), 424-442. - Coldwater Reservoir Ecology (2009) - Progress Report
- Elemental signatures in otoliths of hatchery rainbow trout (Oncorhynchus mykiss): distinctiveness and utility for detecting origins and movement (2009)
- Coldwater Reservoir Ecology (2008) - Progress Report
- Forensic Applications of Otolith Microchemistry For Tracking Sources of Illegally Stocked Whirling Disease Positive Trout (2007) - Final Report
- Coldwater Reservoir Ecology (2007) - Progress Report
- Coldwater Reservoir Ecology (2006) - Progress Report
- Modeling Target Strength Distributions to Improve Hydroacoustic Estimation of Lake Trout Population Size (2006)
- Do Predators Influence the Distribution of Age-0 Kokanee in a Colorado Reservoir? (2004)
- Tracking Trophic Interactions in Coldwater Reservoirs Using Naturally Occurring Stable Isotopes (2002)
- Trophic Economics of Lake Trout Management in Reservoirs of Differing Productivity (2000)
- Postrelease Hooking Mortality of Rainbow Trout Caught on Scented Artificial Baits (1996)
- Selecting Harvest Regulations for Recreational Fisheries: Opportunities for Research/ Management Cooperation (1995)
- Some Factors Affecting a Hatchery-Sustained Kokanee Population in a Fluctuating Colorado Reservoir (1995)
- Interactions of Zooplankton, Mysis relicta, and Kokanees in Lake Granby, Colorado(1991)
- Proposed Biological Management of Mysis relicta in Colorado Lakes and Reservoirs (1989)
Cutthroat Trout
- Cutthroat Trout Studies (2020) - Progress Report
Data Management
- Statewide Fisheries Assessments and Surveys (August 2020) - Progress Report
- Aquatic Data Analysis (March 2020) - Progress Report
- Statewide Fisheries Assessments and Surveys (August 2019) - Progress Report
- Aquatic Data Analysis (August 2019) - Job Progress Report
- Statewide Fisheries Assessments and Surveys (September 2018) - Progress Report
- Aquatic Data Analysis (August 2018) - Progress Report
- Statewide Fisheries Assessments and Surveys (September 2017) - Progress Report
- Aquatic Data Analysis (August 2017) - Progress Report
- Aquatic Data Analysis (August 2016) - Progress Report
- Aquatic Data Analysis (August 2015) - Progress Report
- Aquatic Data Analysis (August 2014) - Progress Report
- Aquatic Data Analysis (August 2013) - Progress Report
- Aquatic Data Analysis (August 2012) - Progress Report
- Aquatic Database (June 2011) - Progress Report
- Aquatic Data Analysis (May 2010) - Progress Report
- Aquatic Data Analysis (June 2009) - Progress Report
- Aquatic Data Analysis (July 2008) - Progress Report
- Aquatic Data Analysis (June 2007) - Progress Report
- Aquatic Data Analysis (May 2006) - Progress Report
Eastern Plains Native Fish
- Eastern Plains (2021) - Progress Report
- Eastern Plains (2020) - Progress Report
Fish of the Upper Colorado River Basin
- Cyprinid Fish Larvae and Early Juveniles of the Upper Colorado River Basin: Morphological Descriptions, Comparisons and Computer-Interactive Key (May 2016) (31MB)
- Catostomid fish larvae and early juveniles of the Upper Colorado River Basin – morphological descriptions, comparisons, and computer-interactive key (September 2004)
Fish Telemetry
- Fish Telemetry - Chapter 14 (2007) - Analysis of movement and habitat use from telemetry data
Rogers, K. B. and G. C. White. 2007. Analysis of movement and habitat use from telemetry data. Pages 625-676 in M. Brown and C. Guy, editors. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Maryland.
Fisheries Methods
- Incorporating GPS and mobile radio frequency identification to detect PIT tagged fish and evaluate habitat utilization in streams (2017)
- Raft and Floating Radio Frequency Identification (RFID) Antenna Systems for Detecting and Estimating Abundance of PIT-tagged Fish in Rivers (2014)
- Addressing Depletion Failure and Estimating Gear Efficiency Using Back-calculation of Capture Probabilities (2013)
- Otolith Weight as a Predictor of Age in Kokanee Salmon from Four Colorado Reservoirs (2012)
Hydroacoustics
- Lake and Reservoir Hydroacoustic Assessments Report (April 2021) - Annual Report
Invasive Species
- Efficacy of commercially available quaternary ammonium compounds for controlling New Zealand mudsnails, Potamopyrgus antipodarum (2016)
- Quaternary Ammonia Compound Disinfection Protocols (April 2022)
- Application of Household Disinfectants to Control New Zealand Mudsnails (August 2008)
Mercury Studies
- Effects of Prey Assemblage on Mercury Bioaccumulation in Piscivorous Sport Fish (2015)
- The Influence of External Subsidies on Diet, Growth and Concentrations of Freshwater Sport Fish (2012)
- Relative Influence of Prey Mercury Concentration, Prey Energy Density and Predator Sex on Sport Fish Mercury Concentrations (2012)
- Manipulation of Growth to Reduce Sport Fish Mercury Concentrations on a Whole-Lake Scale (2012)
Salmonid Culture Studies
Salmonid Disease Investigation
- Dual resistance to Flavobacterium psychrophilum and Myxobolus cerebralis in rainbow trout (Oncorhynchus mykiss, Walbaum) (2022)
- Evidence for the use of mucus swabs to detect Renibacterium salmoninarum in brook trout (2021)
- Efficacy of Erymicin 200 injections for reducing Renibacterium salmoninarum and controlling vertical transmission in an inland rainbow trout brood stock (2020)
- Survival of whirling-disease-resistant rainbow trout fry in the wild - A comparison of two strains (2018)
- Brown trout removal effects on short-term survival and movement of Myxobolus cerebralis-resistant rainbow trout (2015)
- Survival and Reproduction of Myxobolus cerebralis-Resistant Rainbow Trout Introduced to the Colorado River and Increased Resistance of Age-0 Progeny (2014)
- Prevalence and intensity of the parasiticcopepod on kokanee salmon in a Colorado reservoir (2014)
- Genetic Basis of Differences in Myxospore Count between Whirling Disease-Resistant and Susceptible Strains of Rainbow Trout (2012)
- The Effects of Myxobolus cerebralis on the Physiological Performance of Whirling Disease Resistant and SusceptibleStrains of Rainbow Trout (2011)
- Salmonid Disease Investigation (July 2011) - Final Progress Report
- Salmonid Disease Investigation (June 2010) - Job Progress Report
- Salmonid Disease Investigation (June 2009) - Job Progress Report
- Resistant Rainbow Trout in Colorado: Current Status and Uses (2009) - Research Summary
- Salmonid Disease Investigation (July 2008) - Job Progress Report
- Salmonid Disease Investigation (June 2007) - Job Progress Report
Sport Fish Studies
- Habitat associations of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta fry (2021)
- Sport Fish Research Studies (2021) - Progress Report
- Sport Fish Research Studies (2020) - Progress Report
- Colorado Hatchery Feed Experiments (2019)
- Sport Fish Research Studies (2019) - Progress Report
- Sport Fish Research Studies (2018) - Progress Report
- Sport Fish Research Studies (2017) - Progress Report
- Critical dissolved oxygen tolerances of whirling disease-resistant rainbow trout (2016)
- Sport Fish Research Studies (2016) - Progress Report
- The effect of a single prerelease exposure to conspecific alarm cue on poststocking survival in three strains of rainbow trout (Oncorhynchus mykiss) (2016)
- Sport Fish Research Studies (2015) Progress Report
- Behavioral responses of a highly domesticated, predator naïve rainbow trout to chemical cues of predation (2015)
- Optimizing time of initiation for triploid walleye production using pressure shock treatment (2015)
- Optimizing Triploid Walleye Production in Colorado (2015)
- Sport Fish Research Studies (2014) - Progress Report
- Tiger Muskellunge Predation Upon Stock Sport Fish Intended for Recreational Fishing (2014)
- Sport Fish Research Studies (2013) - Progress Report
- Sport Fish Research Studies (2012) - Progress Report
- An Experimental Approach to Determine Esocid Preference in Replicated Pond Systems (2012)
Stream Habitat Investigations
- Stream Habitat Investigations and Assistance (2021) - Progress Report
- Multispecies fish passage evaluation at a rock-ramp fishway in a Colorado transition zone stream (2020)
- Stream Habitat Investigations and Assistance (2020) - Progress Report
- Stream Habitat Investigations and Assistance (2019) - Progress Report
- Stream Habitat Investigations and Assistance (2018) - Progress Report
- Stream Habitat Investigations and Assistance (2017) - Progress Report
- Upper Arkansas River Habitat Restoration Project: 2013-2015 Monitoring Report (March 2017)
- Stream Habitat Investigations and Assistance (2016) - Progress Report
- Post-Flood Recovery Assessment & Stream Restoration Guidelines for the Colorado Front Range (April 2015)
- Stream Habitat Investigations and Assistance (2015) - Progress Report
- Effects of Whitewater Parks on Fish Passage: A Spatially Explicit Hydraulic Analysis. (Tim Stephens, 2014)
- Stream Habitat Investigations and Assistance (2014) - Progress Report (20.4 MB)
- Stream Habitat Investigations and Assistance (2013) - Progress Report (32MB)
- Modeling in a Three-dimensional World: Whitewater Park Hydraulics and their Impact on Aquatic Habitat in Colorado. (Eleanor Kolden, 2013)
- Eco-hydraulic Evaluation of Whitewater Parks as Fish Passage Barriers (Brian Fox, 2013)
- The Effects of PIT Tagging on the Swimming Performance and Survival of Three Nonsalmonid Freshwater Fishes (2012)
- Stream Habitat Investigations and Assistance (2012) - Progress Report
- Stream Habitat Investigations and Assistance (2011) - Progress Report
- Fish Barriers and Small Plains Fishes: Fishway Design Recommendations and the Impact of Existing Instream Structures (June 2007)
Myrick, Christopher A. and Ficke, Ashley D. 2007 - Stream Habitat Investigations and Assistance (2006) - Final Progress Report
Warmwater Fisheries
- Are We Doing All We Can to Stem the Tide of Illegal Fish Stocking? (August 2009) - Fisheries 34(8)
- Evaluating the Power Output of the Smith-Root GPP 5.0 Electrofisher to Promote Electrofishing Fleet Standardization (2009)
- Ranking Predatory Threats by Nonnative Fishes in the Yampa River, Colorado, Via Bioenergetics Modeling (2008)
- Stable Isotope Analysis of Centrarchid Concentration Areas (August 2007)
- Current Status and Review of Freshwater Fish Aging Procedures Used by State and Provincial Fisheries Agencies with Recommendations for Future Directions (July 2007) - Fisheries 32(7) 329-340
- Westslope Warmwater Fisheries (June 2007) - Job Progress Report
- Sources of Nonnative Centrarchids in the Upper Colorado River Revealed by Stable Isotope and Microchemical Analyses of Otoliths (2007)
- Westslope Warmwater Fisheries (August 2006) - Job Progress Report
- Stable hydrogen isotopic composition of fishes reflects that of their environment (2006)
- Colorado Nonnative Fish Stocking Regulation Evaluation (February 2004) - Final Report (9.4 MB)
- The Use of a Pattern Judgment Model to Assess Fish Habitat Suitability in Two Colorado Reservoirs (2003)
- Stable Isotope Signatures of Native and Nonnative Fishes in Upper Colorado River Backwaters and Ponds ( September 2001)
- Fish species composition before and after construction of a main stem reservoir on the White River, Colorado (1994)
- Evaluation of an Introduction of Colorado Squawfish in a Main Stem Impoundment on the White River, Colorado (December 1993)
- Fabrication of Stainless Steel Spherical Anodes for Use with Boat-Mounted Boom Electroshockers (1992)
- White River Taylor Draw Project (June 1986)
Water Pollution Studies
- Water Pollution Studies (2020) - Progress Report
- Increasing copper concentrations do not affect Myxobolus cerebralis triactinomyxon viability (2019)
- Water Pollution Studies (2019) - Progress Report
- Water Pollution Studies (2018) - Progress Report
- Water Pollution Studies (2017) - Progress Report
- Water Pollution Studies (2016) - Progress Report
- Water Pollution Studies (2015) - Progress Report
- Water Pollution Studies (2014) - Progress Report
- Water Pollution Studies (2013) - Progress Report
- Water Pollution Studies (2012) - Progress Report
- Water Pollution Studies (2011) - Progress Report
- Water Pollution Studies (2010) - Progress Report
- Water Pollution Studies (2009) - Progress Report
- Chronic Toxicity of Ammonia to Early Life Stage Rainbow Trout (March 2009)
- McGree's Thesis (Spring 2008) - Effects of 17Β-estradiol on the reproduction of adult red shiners
- Water Pollution Studies (2008) - Progress Report
- Acute Toxicity of Aqueous Copper, Cadmium, and Zinc to the Mayfly (2007)
- Toxicity of Cadmium of Early Life Stages of Brown Trout At Multiple Water Hardness (2007)
- Water Pollution Studies (2007) - Progress Report
- Water Pollution Studies (2006) - Progress Report
- Water Pollution Studies (2005) - Progress Report
- Zinc Toxicity to the Mottled Sculpin In High-Hardness Water (2004)
- Water Pollution Studies (2004) - Progress Report
- Water Pollution Studies (2003) - Progress Report
- Water Pollution Studies (2002) - Progress Report
- Acute and Chronic Toxicity of Zinc to the Mottled Sculpin (2001)
- Water Pollution Studies (2001) - Progress Report
- Water Pollution Studies (2000) - Progress Report
- Water Pollution Studies (1999) - Progress Report
- Identification of gas supersaturation sources in the Upper Colorado River, USA (1999)
West Slope Three Species Investigations
- Three-Species (March 2021) - 2020 Progress Report
- Species composition and hybridization among native and nonnative catostomid fishes in two streams of the Gunnison River basin, Colorado (March 2020)
- Three-Species Research Project Summary (Febuary 2020) - 2019 Progress Report
- Present Distribution of Three Colorado River Basin Native Non-game Fishes and Their Use of Tributaries (August 2019)
- Temperature – Not Flow – Predicts Native Fish Reproduction with Implications for Climate Change (January 2019)
- An Intermittent Stream Supports Extensive Spawning of Large-River Native Fishes (December 2018)
- Inconsistent reproductive isolation revealed by interactions between Catostomus fish species (November 2017)
- Short-term Passive Integrated Transponder tag retention in wild populations of Bluehead and Flannelmouth suckers (April 2017)
- Flannelmouth and Bluehead Sucker tributary use in the upper White River Drainage (June 2017)
- Three Species Investigations (May 2017) - Job Progress Report
- Movement patterns, reproduction, and potential impacts of climate change on three native fishes in the upper White River drainage, Colorado (2015)
- Three Species Investigations (March 2014) - Job Progress Report
Whirling Disease
- Fishery Management Interventions to Eliminate Myxobolus cerebralis Infections in Lower Square Top Lake (2013)
- Fishery Management Interventions to Eliminate Myxobolus cerebralis Infections in Placer Creek (2013)
- Fishery Management Interventions to Reduce Myxobolus cerebra lis Infections in Fish Ponds on the Cap K Ranch (2013)
- Evaluation of Small-scale Habitat Manipulation to Reduce the Impact of the Whirling Disease Parasite in streams (2011)
- Whirling Disease Investigations (May 2010) - Job Progress Report
- Whirling Disease Investigations (June 2009) - Job Progress Report
- Whirling Disease Investigations (July 2008) - Job Progress Report
- Whirling Disease/Habitat Interactions (July 2008) - Job Progress Report
- Whirling Disease Investigations (June 2007) - Job Progress Report
- Whirling Disease/Habitat Interactions (June 2007) - Job Progress Report
- Use of Site Occupancy Models to Estimate Prevalence of Myxobolus cerebralis Infection in Trout (2007)
- Whirling Disease Investigations (June 2006) - Job Progress Report
- Whirling Disease/Habitat Interactions (June 2006) - Job Progress Report
- Inheritance of Myxobolus cerebralis Resistance Among F1-Generation Crosses of Whirling Disease Resistant and Susceptible Rainbow Trout Strains (2006)
- Efficacy of passive sand filtration in reducing exposure of salmonids to the actinospore of Myxobolus cerebralis (December 2003)
- Using Sediment Core Samples to Examine the Spatial Distribution of Myxobolus cerebralis Actinospore Production in Windy Gap Reservoir, Colorado (2003)
- Response of rainbow trout Oncorhynchus mykiss to exposure to Myxobolus cerebralis above and below a point source of infectivity in the upper Colorado River (June 2002)
- Evaluation of Risk of High Elevation Colorado Waters to the Establishment of Myxobolus cerebralis (2002)
- Comparison of single-round polymerase chain reaction (PCR) and pepsin-trypsin digest (PTD) methods for detection of Myxobolus cerebralis (June 2001)
- Effects of Multiple Stressors on Morbidity and Mortality of Fingerling Rainbow Trout Infected with Myxobolus cerebralis (2000)
- A Simple Technique Used to Filter and Quantify the Actinospore of Myxobolus cerebralis and Determine Its Seasonal Abundance in the Colorado River (2000)
- Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River (January 1999)
- Evaluation of Chronic Gas Supersaturation on Growth, Morbidity, and Mortality of Fingerling Rainbow Trout Infected with Myxobolus cerebralis (1999)
Whitefish Investigations
New Technical Publications
2020 Colorado Angler Survey Summary Report (July 2021)
History and Outcomes of Opossum Shrimp Introductions in Colorado (August 2021)
Observations of Parasites of the Fishes of Colorado (July 2020)
Upper Arkansas River Habitat Restoration Project (March 2017)