Technical Reports: Research & Monitoring

Bonytail

Bestgen, K.R., R.C. Schelly, R.R. Staffeldt, M.J. Breen, D.E. Snyder & M.T. Jones. 2017. First Reproduction by Stocked Bonytail in the Upper Colorado River Basin. North American Journal of Fisheries Management, 37:2, 445-455, DOI: 10.1080/02755947.2017.1280571.

Colorado pikeminnow

Elverud, D.S., D. B. Osmundson, and G. C. White. 2020. Population structure, abundance and recruitment of Colorado pikeminnow of the upper Colorado River, 1991–2015. Final Report. U. S. Fish and Wildlife Service, Grand Junction, Colorado.

Miller, Phillip S. 2018. Population Viability Analysis for the Colorado Pikeminnow (Ptychocheilus lucius) An Assessment of Current Threats to Species Recovery and Evaluation of Management Alternatives. Final Report of the IUCN SSC Conservation Planning Specialist Group to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

SUPPLEMENTAL INFORMATION

Bestgen, K.R., C.D. Walford, G.C. White, J.A. Hawkins, M.T. Jones, P.A. Webber, M. Breen, J.A. Skorupski Jr., J. Howard, K. Creighton, J. Logan, K. Battige, and F.B. Wright. 2018. Population Status and Trends of Colorado pikeminnow in the Green River Sub-Basin, Utah and Colorado, 2000-2013. Final Report of the Larval Fish Laboratory, Colorado State University to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Osmundson, D.B., and G.C. White. 2014. Population Structure, Abundance and Recruitment of Colorado Pikeminnow of the Upper Colorado River, 1991-2010. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Breen, M.J., M. Swasey, P. Badame, K. Creighton. 2011. Upper Colorado River basin young-of-year Colorado pikeminnow (Ptychocheilus lucius) monitoring: Summary report 1986-2009. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Bestgen, K.R., J.A. Hawkins, G.C. White, C.D. Walford, P. Badame, and L. Monroe. 2010. Population status of Colorado pikeminnow in the Green River Basin, Utah and Colorado, 2006-2008. Final Report of the Larval Fish Laboratory, Colorado State University to the Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Osmundson, D.B., and G.C. White. 2009. Population status and trends of Colorado pikeminnow of the upper Colorado River, 1991-2005. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Kitcheyan, D.C., and M. Montagne. 2005. Movement, Migration, and Habitat Use by Colorado Pikeminnow, (Ptychocheilus lucius) in a Regulated River Below Flaming Gorge Dam, Utah. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Upper Colorado River Endangered Fish Recovery Program. 2006. Evaluation of Population Estimates for Colorado Pikeminnow and Humpback Chub in the Upper Colorado River Basin. Final Report of Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Bestgen, K.R., J. A. Hawkins, G. C. White, K. Chrisopherson, M. Hudson, M. H. Fuller, D. C. Kitcheyan, R. Brunson, P. Badame, G. B. Haines, J. Jackson, C. D. Walford, T. A. Sorensen, and T. B. Williams. 2005. Population Status of Colorado Pikeminnow in the Green River Basin, Utah and Colorado. Final Report of Colorado State University Larval Fish Laboratory to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Osmundson, D.B. 2002. Population dynamics of Colorado pikeminnow in the upper Colorado River. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Humpback chub

Francis, T.A., K.R. Bestgen, and G.C. White.  2022.  Population status of humpback chub, Gila cypha, and catch indices and population structure of sympatric roundtail chub, Gila robusta, in Black Rocks, Colorado River, Colorado, 1998-2017.  Larval Fish Laboratory Contribution 222.  Final Report from the U.S. Fish and Wildlife Service to the Upper Colorado River Endangered Fish Recovery Program, Project Number 131.  Grand Junction, Colorado.

Caldwell, J. 2021. Humpback Chub Gila cypha Monitoring in Desolation and Gray Canyons of the Green River, Utah, 2018-2019. Project 129 U.S. Bureau of Reclamation. Utah Division of Wildlife 1165 S. Hwy 191 Suite 4 Moab, UT

Hines, B. A., K. R. Bestgen, and G. C. White. 2020. Abundance estimates for humpback chub (Gila cypha) and roundtail chub (Gila robusta) in Westwater Canyon, Colorado River, Utah 2016–2017. Final Report, Project 132. Upper Colorado River Endangered Fish Recovery Program, Lakewood, Colorado. Larval Fish Laboratory Contribution 219, Colorado State University, Fort Collins, CO.

Howard, J. and J. Caldwell. 2018. Population Estimates for Humpback Chub (Gila cypha) in Desolation and Gray Canyons, Green River, Utah 2001-2015. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Francis, T.A., K.R. Bestgen and G.C. White. 2016. Population Status of Humpback Chub, Gila cypha, and Catch Indices and Population Structure of Sympatric Roundtail Chub, Gila Robusta, in Black Rocks, Colorado River, Colorado, 1998-2012. Larval Fish Laboratory Contribution 199. Final Report to the Upper Colorado River Endangered Fish Recovery Program Project Number 131. Grand Junction, Colorado.

Hines, B.A., K.R. Bestgen and G.C. White. 2016. Abundance Estimates for Humpback Chub (Gila cypha) and Roundtail Chub (Gila robusta) in Westwater Canyon, Colorado River, Utah 2011-2012. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Elverud, D. 2012. Population Estimates for Humpback Chub (Gila cypha) and Roundtail Chub (Gila robusta) in Westwater Canyon, Colorado River, Utah 2007–2008. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Badame, P. 2012. Population estimates for humpback chub (Gila cypha) in Desolation and Gray Canyons, Green River, Utah 2006-2007. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Francis, T.A., and C.W. McAda. 2011. Population size and structure of humpback chub, Gila cypha and roundtail chub, G. robusta, in Black Rocks, Colorado River, Colorado, 2007–2008. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Jackson, J. A. 2010. Population Estimate for Humpback Chub (Gila cypha) and Roundtail Chub (Gila robusta) in Westwater Canyon, Colorado River, Utah 2003-2005. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Hudson, J.M., and J.A. Jackson. 2003. Population Estimates for Humpback Chub (Gila cypha) and Roundtail Chub (Gila robusta) in Westwater Canyon, Colorado River, Utah, 1998-2000. Final Report of Utah Division of Wildlife Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Razorback sucker

Zelasko, K.A., K.R. Bestgen, and G.C. White. 2020. Estimation challenges with large-river fish: Razorback Sucker abundance and vital rates in the Green River, Utah. Final Report of Larval Fish Laboratory, Colorado State University to Upper Colorado Endangered Fish Recovery Program, Denver, Colorado.

Zelasko, K.A., K.R. Bestgen, and G.C. White. 2018. Abundance and survival rates of razorback suckers Xyrauchen texanus in the Green River, Utah, 2011-2013. Final Report of Larval Fish Laboratory, Colorado State University to Upper Colorado Endangered Fish Recovery Program, Denver, Colorado.

Bestgen, K.R., K.A. Zelasko, and G.C. White. 2012. Monitoring Reproduction, Recruitment, and population status of razorback suckers in the Upper Colorado River Basin. Final Report of Larval Fish Laboratory, Colorado State University to Upper Colorado Endangered Fish Recovery Program, Denver, Colorado.

Osmundson, D.B., and S.C. Seal. 2009. Successful Spawning by Stocked Razorback Sucker in the Gunnison and Colorado Rivers, as Evidenced by Larval Fish Collections, 2002-2007. Final Report of U.S. Fish and Wildlife Service to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Bestgen, K. R., G. B. Haines, R. Brunson, T. Chart, M. Trammell, R. T. Muth, G. Birchell, K. Christopherson, and J. M. Bundy. 2002. Status of wild razorback sucker in the Green River Basin, Utah and Colorado, determined from basinwide monitoring and other sampling programs. Final Report, Colorado River Recovery Implementation Program Project Number 22D, Denver, Colorado.

Other

Elverud, D. 2022. Monitoring Large-Bodied, Young-of-Year, and Larval Fishes of the Upper Colorado River and the Lower Gunnison River, Colorado in Response to Reoperation of the Aspinall Unit Reservoirs 2011-2016. Grand Junction Fish and Wildlife Conservation Office. Grand Junction, Colorado.

Martinez, P.J., A. L. Kolz. 2018. Recommended Electrofishing Guidelines for Upper Colorado River Basin Habitats Containing Endangered Fishes . Standard Operating Procedure for Electrofishing to the Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Snyder, D.E., S.C. Seal, J.A. Charles, and C.L. Bjork. 2016. Guide to Cyprinid Fish Larvae and Early Juveniles of the Upper Colorado River Basin with Computer-Interactive Key. Final Report of the Larval Fish Laboratory, Colorado State University to the Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Hawkins, J. 2008. Fish handling guidance for the Upper Colorado Endangered Fish Recovery Program. Report of Larval Fish Laboratory, Colorado State University to Upper Colorado Endangered Fish Recovery Program, Denver, Colorado.

Valdez, R.A., A. Widmer, K. Bestgen. 2011. Research Framework for the Upper Colorado River Basin. Final Report of SWCA Environmental Consultants and Larval Fish Laboratory, Colorado State University Resources to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

Tyus, H.M., and J.F. Saunders, III. 2001. An Evaluation of the Role of Tributary Streams for Recovery of Endangered Fishes in the Upper Colorado River Basin, with Recommendations for Future Recovery Actions. Final Report of University of Colorado at Boulder Center for Limnology to Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.

McAda, C. 1987. Interagency Standardized Monitoring Program (ISMP). Final Interagency Standardized Monitoring Program Handbook. U.S. Fish and Wildlife Service, Colorado River Fisheries Project, Grand Junction, Colorado.