Technical Reports

Walker, J.D. and J. Kann (2022). Spatial and Temporal Nutrient Loading Dynamics in the Sprague River Basin, OR, Water Years 2002–2020. Technical Report prepared for the Klamath Tribes Natural Resources Department. 96p. + appendices.

Walker, J.D., and J. Kann (2022). Water and Nutrient Balances of Upper Klamath Lake, Water Years 1992–2018. Technical Report prepared for the Klamath Tribes Natural Resources Department, Chiloquin, OR. 80 pp + Appendices.

Genzoli, L and J. Kann. 2021. Spatial and temporal patterns of benthic cyanobacteria proliferations and anatoxin in the Klamath River Watershed, Summer 2021. Prepared by Aquatic Ecosystem Sciences LLC for the Karuk Tribe Water Quality Program. 14 p. + Appendices. December 2021.

Walker, J.D. and J. Kann (2020). Inflow/outflow phosphorus loading dynamics in Upper Klamath Lake, Oregon. Technical Report Prepared for U.S Fish and Wildlife Service, Klamath Falls Fish and Wildlife Office. November 2020. 46 p.

Kann, J. 2020. Nutrient loading and concentration dynamics in the Sevenmile Creek system - 2019. Prepared by Aquatic Ecosystem Sciences, Ashland, Oregon. Prepared for the Klamath Tribes Natural Resources Department, Chiloquin, Oregon. 35 p.

Genzoli, L and J. Kann. 2020. Extent and Distribution of Anatoxin-a in the Klamath River: A Review of Toxin Monitoring and Benthic Cyanobacteria Observations. Prepared by Aquatic Ecosystem Sciences LLC for the Klamath Tribal Water Quality Consortium 24 p. + Appendices. April 2020.

Kann. J. 2019. Upper Klamath Lake 2018 Data Summary Report. Technical Memorandum prepared by Aquatic Ecosystem Sciences LLC for the Klamath Tribes Natural Resources Department, Chiloquin OR. 75 p.

Kann. J. 2019. Upper Klamath Lake Tributary Loading: 2018 Data Summary Report. Technical Memorandum prepared by Aquatic Ecosystem Sciences LLC for the Klamath Tribes Natural Resources Department, Chiloquin OR.43 p.

Kann J. and L. Novitsky. 2019. WISE Pre-Project Effectiveness Monitoring Baseline Water Quality Summary Report – Year 3. August 2015 – December 2018. Prepared for Rogue River Watershed Council. 72. p.

Genzoli, L and J. Kann. 2019. Klamath River benthic cyanobacteria toxin results. Technical Memorandum prepared for Klamath Tribal Water Quality Consortium. 10 p.

Nielsen, J. M., Kann, J., and Brett M. T. 2018. Combined analyses of long-term (1990-2015) water quality and plankton dynamics of Upper Klamath Lake (Phase II). Prepared by Aquatic Ecosystem Sciences LLC and University of Washington for the Klamath Tribes Natural Resources Department. 107p.

Genzoli, L and J. Kann. 2017. Toxigenic Cyanobacterial Trends in the Middle Klamath River, 2005-2016. Prepared by Aquatic Ecosystem Sciences LLC for the Karuk Tribe Department of Natural Resources. 50 p. + appendices.

Genzoli L. and J. Kann. 2016. Evaluation of phycocyanin probes as a monitoring tool for toxigenic cyanobacteria in the Klamath River below Iron Gate Dam. Prepared by Aquatic Ecosystem Sciences LLC for the Klamath Tribal Water Quality Consortium. 35 p. + appendices.

Walker, J. D., J. Kann, and W.W. Walker. 2015. Spatial and temporal nutrient loading dynamics in the Sprague River Basin, Oregon. Prepared by Aquatic Ecosystem Sciences, J. D. Walker, and W. W. Walker for the Klamath Tribes Natural Resources Department. 73p. + appendices.

Kann, J., J.E. Asarian, A. St. Amand. 2015. Initial Analysis of 1990-2013 Phytoplankton and Zooplankton Data for Upper Klamath Lake (Phase I). Prepared by Aquatic Ecosystem Sciences LLC. for the Klamath Tribes Natural Resources Department. 100p. + appendices.

Genzoli, L., R.O. Hall, J.E. Asarian, and J. Kann. 2015. Variation and Environmental Association of Ecosystem Metabolism in the Lower Klamath River: 2007-2014. Prepared by the University of Wyoming, Riverbend Sciences, and Aquatic Ecosystem Sciences LLC. for the Klamath Tribal Water Quality Consortium. 44p. + appendices.

Kann, J. and L. Bowater. 2014. Willow Lake Cyanobacteria and Limnological Assessment, 2011-2013. Technical Memorandum prepared for Medford Water Commission. 66p + appendics.

Asarian, J.E., Y. Pan, N.D. Gillett, and J. Kann. 2015. Periphyton Assemblages and Associated Environmental Conditions in the Klamath River 2004-2013. Prepared by Riverbend Sciences, Portland State University, and Aquatic Ecosystem Sciences LLC. for the Klamath Basin Tribal Water Quality Work Group. 48p. + appendices.

J.E. Asarian, Y. Pan, N.D. Gillett, and J. Kann. 2014. Spatial and Temporal Variation of Periphyton Assemblages in the Klamath River, 2004-2012. Prepared by Kier Associates, Portland State University, and Aquatic Ecosystem Sciences LLC. for the Klamath Basin Tribal Water Quality Work Group. 50p. + appendices.

Kann, J. 2014. Technical Memorandum: Evaluation of Cyanobacteria and Cyanobacterial toxins with reference to Selection of Water Quality Criteria for the Karuk Tribe of California. Prepared for: Karuk Tribe of California Natural Resources Department. March, 2014.

Asarian, E. and J. Kann. 2013. Synthesis of Continuous Water Quality Data for the Lower and Middle Klamath River, 2001-2011. Prepared by Kier Associates and Aquatic Ecosystem Sciences for the Klamath Basin Tribal Water Quality Work Group. 50p. + appendices.

Stillwater Sciences, Jones & Trimiew Design, Atkins, Tetra Tech, Riverbend Sciences, Aquatic Ecosystem Sciences, and NSI/Biohabitats. 2013. Water Quality Improvement Techniques for the Upper Klamath Basin: A Technical Workshop and Project Conceptual Designs. Prepared for California State Coastal Conservancy, Oakland, California.

Stillwater Sciences, Riverbend Sciences, Aquatic Ecosystem Sciences, Atkins, Tetra Tech, NSI/Biohabitats, and Jones & Trimiew Design. 2012. Klamath River pollutant reduction workshop—information packet. Revised. Prepared for California State Coastal Conservancy, Oakland, California.

Walker, W.W., J. D. Walker, and J. Kann. 2012. Evaluation of Water and Nutrient Balances for the Upper Klamath Lake Basin in Water Years 1992-2010. Technical Report to the Klamath Tribes Natural Resources Department, Chiloquin, OR. 50 pp +Appendices.

Stanford, J., W. Duffy, E. Asarian, B. Cluer, P. Detrich, L. Eberle, S. Edmondson, S. Foott, M. Hampton, J. Kann, K. Malone, and P. Moyle. 2011, Chapter 7: Conceptual Model for Restoration of the Klamath River. In: Thorsteinson, L., VanderKooi, S., and D. Walter, eds., 2011, Proceedings of the Klamath Basin Science Conference, Medford, Oregon, February 1–5, 2010: U.S. Geological Survey Open-File Report 2011-1196, 312 p.

Asarian, E. and J. Kann. 2011. Phytoplankton and Nutrient Dynamics in Iron Gate and Copco Reservoirs 2005-2010. Prepared by Kier Associates and Aquatic Ecosystem Sciences for the Klamath Basin Tribal Water Quality Work Group. 60p + appendices.

Kann, J., C. Bowman, L. Bowater, and G. Johnson. 2011. Preliminary 2010 Microcystin Bioaccumulation Results for Klamath River Salmonids (Updated 4-7-2011). Technical Memorandum prepared for Karuk Natural Resources Program (Orleans CA). 37 p

Kann, J. and L. Bowater. 2011. City of Ashland WMP and Water Conservation and Reuse Study – 2010 Reeder Reservoir Water Quality Assessment:. Technical Memorandum Prepared for Carollo Engineers and City of Ashland, Oregon, 44pp.

Jassby, A., and J. Kann. 2010. Upper Klamath Lake monitoring program: preliminary analysis of status and trends for 1990-2009. Technical Memorandum prepared by Aquatic Ecosystem Sciences LLC for the Klamath Tribes Natural Resources Department, Chiloquin OR. 55 p.

Kann, J., S. Corum, and K. Fetcho. 2010. Microcystin Bioaccumulation in Klamath River Freshwater Mussel Tissue: 2009 Results. Technical Memorandum prepared for Karuk Natural Resources Program (Orleans CA) and the Yurok Tribe Environmental Program (Klamath CA).37 p.

Asarian, E. J. Kann, and W. Walker, 2009. Multi-year Nutrient Budget Dynamics for Iron Gate and Copco Reservoirs, California. Final Technical Report to the Karuk Tribe Department of Natural Resources, Orleans, CA. 55pp + appendices.

Kann, J. , and S. Corum 2009. Toxigenic Microcystis aeruginosa bloom dynamics and cell density/chlorophyll a relationships with microcystin toxin in the Klamath River, 2005-2008. Technical Memorandum Prepared for the Karuk Tribe Department of Natural Resources. May 2009.

Kann, J. 2009. Microcystin Bioaccumulation in Klamath River Fish and Freshwater Mussel Tissue: Preliminary 2007 Results. Technical Memorandum Prepared for the Karuk Tribe Department of Natural Resources. April 2009.

Kann, J. and J. Eilers. 2008. Reeder Reservoir (Ashland Oregon) Water Quality and Sediment Assessment, 2007. Technical Memorandum prepared for Brown and Caldwell and City of Ashland, Oregon, 45pp.

Kann, J. 2008. Microcystin Bioaccumulation in Klamath River Fish and Freshwater Mussel Tissue: Preliminary 2007 Results. Technical Memorandum Prepared for the Karuk Tribe Department of Natural Resources. April 2008.

Kann, J., and E. Asarian. 2007. Nutrient Budgets and Phytoplankton Trends in Iron Gate and Copco Reservoirs, California, May 2005 – May 2006. Final Technical Report to the State Water Resources Control Board, Sacramento, California. 81pp + appendices.

Kann, J. , and S. Corum 2007. Summary of 2006 Toxic Microcystis aeruginosa Trends in Copco and Iron Gate Reservoirs on the Klamath River, CA. Technical Memorandum Prepared for the Karuk Tribe Department of Natural Resources. June 2007.

Kann, J. and E. Asarian. 2006. Longitudinal analysis of Klamath River phytoplankton data, 2001-2004. Final Technical Report to the Yurok Tribe Environmental Program, Klamath, California.

Kann, J. and J. Eilers. 2006. Evaluation of management options for controlling toxic cyanobacteria in Laurelhurst pond, Portland, Oregon. Technical Memorandum to Portland Parks and Recreation, Portland Oregon. 13pp.

Asarian, E. and J. Kann. 2006. Klamath River Nitrogen Loading and Retention Dynamics, 1996-2004. Kier Associates Final Technical Report to the Yurok Tribe Environmental Program, Klamath, California. 56pp + appendices.

Kann, J. , and S. Corum 2006. Summary of 2005 Toxic Microcystis aeruginosa Trends in Copco and Iron Gate Reservoirs on the Klamath River, CA. Technical Memorandum Prepared for the Karuk Tribe Department of Natural Resources. March 2006.

Kann, J. 2006. Microcystis aeruginosa Occurrence in the Klamath River System of Southern Oregon and Northern California. Technical Memorandum Prepared for the Yurok Tribe Environmental and Fisheries Programs. February 2006.

Kann, J., and E. Asarian. 2005. 2002 Nutrient and Hydrologic Loading to Iron Gate and Copco Reservoirs, California. Kier Associates Final Technical Report to the Karuk Tribe Department of Natural Resources, Orleans CA, 95556. 61pp + appendices.

Kann, J., 2005. Review of Diamond Lake Toxic Algal Monitoring Program, 2001-2004. Summary report prepared for USFS Umpqua National Forest, 2900 NW Stewart Parkway, Roseburg, OR 97470.

Kann, J., 2005. Lake Selmac Toxic Algal Sampling. Summary report prepared for Josephine County Parks Department, 125 Ringuettte St., Grants Pass, Oregon, 97527.

Kann, J., C. Pryor, and G. Matthews. 2004. Water Quality Baseline Surveys In the Wood River Valley, Oregon. Vol. 5 In: Klamath Basin Rangeland Trust 2003 Pilot Project Monitoring Report. Klamath Basin Rangeland Trust, P.O. Box 4310, Medford, Oregon 97501.

Kann, J., and G. Reedy. 2004. Fish and Habitat Surveys In the Wood River Valley, Oregon. Vol. 6 In: Klamath Basin Rangeland Trust 2003 Pilot Project Monitoring Report. Klamath Basin Rangeland Trust, P.O. Box 4310, Medford, Oregon 97501.

Kann, J., C. Pryor, and G. Matthews. 2003. Water Quality Monitoring In the Wood River Valley, Oregon. In: Klamath Basin Rangeland Trust 2002 Pilot Project Monitoring Report. Klamath Basin Rangeland Trust, P.O. Box 4310, Medford, Oregon 97501.

Kann, J., G. Reedy, and J. Kiernan. 2003. Biological Monitoring In the Wood River Valley, Oregon. In: Klamath Basin Rangeland Trust 2002 Pilot Project Monitoring Report. Klamath Basin Rangeland Trust, P.O. Box 4310, Medford, Oregon 97501.

Eilers J., K. Vaché and J. Kann. 2002. Tenmile Lake Nutrient Study: Phase II Report. Report Submitted to Tenmile Lakes Basin Partnership – Supported by Oregon Department of Environmental Quality and City of Lakeside, Oregon.

Eilers J. and J. Kann. 2002. Diamond lake Database and Toxic Bloom Analysis, 2001. Final Report Submitted to U.S Forest Service, Umpqua National Forest, Roseburg, OR.

Eilers J. , J. Kann, J. Cornett, K. Moser, A. St. Amand, C. Gubala. 2004. Recent Paleolimnology of Upper Klamath Lake, Oregon. Final Report Submitted to U.S. Bureau of Reclamation, Klamath Falls Project Office, Klamath Falls, OR, 97603 Contract 9-FG-20-17730.

Kann, J., D. Perkins, and G.G. Scoppettone. 2000. The role of poor water quality and fish kills in the decline of endangered Lost River and shortnose suckers in Upper Klamath Lake. U.S. Geological Survey, Biological Resources Division Final Report Submitted to U.S. Bureau of Reclamation, Klamath Falls Project Office, Klamath Falls, OR, 97603 -- Contract 4-AA-29-12160. (in revision: Environmental Biology of Fishes)

Kann, J. 1999. 1998 Monitoring Program for toxic Microcystis blooms in Tenmile Lakes, Oregon. Prepared for City of Lakeside, Lakeside, OR

Kann, J., and W. W. Walker. 1999. Nutrient and Hydrologic Loading to Upper Klamath Lake, Oregon, 1991-1998. Klamath Tribes Natural Resources Department-U.S. Bureau of reclamation Cooperative Studies. U.S. Bureau of Reclamation Klamath Falls Project Office, Klamath Falls, OR 97603. 106p.

Kann, J., and D. Gilroy. 1998. Ten Mile Lakes toxic Microcystis bloom, September-November 1997. Oregon Health Division Technical Report. Environmental Services and Consultation Center for Environment and Health Systems, OHD, 800 NE Oregon St., Ste. 608, Portland, OR 97232.

Kann, J. 1997. Ecology and water quality dynamics of a shallow hypereutrophic lake dominated by cyanobacteria (blue-green algae). Chapter 1: Chlorophyll as a predictor of elevated pH in a hypereutrophic lake: estimating the probability of exceeding critical values for fish success using parametric and nonparametric models. Chapter 2: Effects of nutrients, consumers, and physical factors on phytoplankton succession and dominance in a shallow hypereutrophic lake. Ph.D. Dissertation, University of North Carolina, Chapel Hill, 1997.

Kann, J. 1997. Effect of Lake Level Management on Water Quality and Native Fish Species in Upper Klamath Lake, Oregon. Draft Klamath Tribes Research Report. 19 pp.

Campbell, S. G., W. J. Ehinger, and J. Kann. 1993. Wood River Hydrology and Water Quality Study. In: C. Campbell (ed.). Environmental Research in the Klamath Basin, Oregon - 1992 Annual Report. Bureau of Reclamation Technical Report R-93-16. pp. 9-92.

Kann, J. 1993. Limnological Trends in Agency Lake, Oregon - 1992. In: C. Campbell (ed.). Environmental Research in the Klamath Basin, Oregon - 1992 Annual Report. Bureau of Reclamation Technical Report R-93-16. pp. 91-134.

Kann, J. 1993. Agency Lake Limnology, 1990-91. In: C. Campbell (ed.). Environmental Research in the Klamath Basin, Oregon - 1991 Annual Report. Bureau of Reclamation Technical Report R-93-13. pp. 103-110.

Coleman, M., J. Kann, and G. Scoppettone. 1988. Life History and Ecological Investigations of Catostomids from the Upper Klamath Basin Oregon. U.S. Fish and Wildlife Service Annual Report. National Fisheries Research Center, Seattle WA. 113pp.

Kann, J. and C. M. Falter. 1985. Blue-green algae toxicity in Black Lake, Kootenai County, Idaho. Idaho Water Resources Research Institute. Research Technical Completion Report G903-02. NTIS PB86 157385/AS.