Reports

Richards, D. C. 2023a. Utah Lake, a vastly underutilized resource. Part 1: Filamentous green algae, the Green Solution. Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard UT.

Richards, D.C., et al. 2023b. Utah Lake Limnocorral Ecological Study. Progress Report 2022. Chapter 2: Ecological Investigation. Ver. 1.2. To Timpanogos Special Service District and Jacobs Engineering. OreoHelix Ecological, Vineyard UT.

Meyers, L., T. Miller, and D. C. Richards. 2023. Utah Lake Restoration. Determining the future of Utah Lake. Technical Pamphlet. Wasatch Front Water Quality Council, Salt Lake City, UT and OreoHelix Ecological, Vineyard UT.

Richards, D.C. 2022a. The health and integrity of Utah Lake 2022: A brief ecological evaluation. Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard UT.

Richards, D.C. 2022b. Development of a Mass Balance Foodweb Model for Utah Lake. Proof-of-Concept. Draft using preliminary data. Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022c. “Midges and Worms, Midges and Worms” Life in Eternal Darkness: Utah Lake Water Quality Rates ‘Very Poor’ based on a Widely used Biotic Index. Technical Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022d. Gremlins vs. Billion Dollar Low Hanging Fruit. Utah Lake Phosphorus Realities. Technical Opinion. Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022e. Utah Lake fish assemblage life history. Prerequisite for food web models. Draft report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022f. Chlorophyll a trends in Utah Lake from 1989 to 2019. Technical Memo to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022g. Cyanobacteria trends in Utah Lake from 1995 – 2018. Technical Memo to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022h. Plankton biomass, diets, production-biomass ratios, and ecotrophic efficiency estimates for Utah Lake foodweb model development: Is it raining algae on the benthos in the summer? Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022i. The Use of USEPA Recovery Potential and Screening as it Relates to the Restoration of Utah Lake. Technical Memo to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022j. Conductivity Optima and Tolerance Values for Cyanobacteria Taxa Found in Utah Lake. Technical Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022k. Screen Effects on TP in AD samplers. Technical Memo to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2022l. Utah Lake phosphorous cycle: Biota as temporary storage sinks. Draft using preliminary foodweb data and a brief literature review. Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D. C. and T. Miller. 2022a. Supplemental carp control method for Utah Lake. Proof-of-Concept Study. Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, David, C. and Blake Wellard. 2022b. Macrophyte Restoration Utah Lake: A Success Story. Technical Memo. Prepared by OreoHelix Ecological for the Timpanogos Special Sewer District, April 19, 2022.

Richards, David C., Marshall, Brett, Rushforth, Sam, Rushforth, Sarah, and Blake Wellard. 2021. TSSD Limnocorral Ecological Study: Progress Report 2021. Prepared by OreoHelix Ecological for the Timpanogos Special Sewer District, December 31, 2021.

Richards, D.C. 2021. Seasonal patterns of phytoplankton assemblage densities and functional traits in Utah Lake: A foodweb model prerequisite. Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard, UT.

Richards, D.C. and T. G. Miller 2021. Chironomid Larvae: Under Appreciated but Essential Arbiters of Nutrient Mobilization and Cyanobacterial Bloom Dynamics in Utah Lake. Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard, UT.

Richards, D.C. 2020. Nutrient Atmospheric Deposition on Utah Lake and Great Salt Lake Locations 2020, including Effects of Sampler Type: Statistical Analyses and Results. Report to Wasatch Front Water Quality Council, Salt Lake City. OreoHelix Ecological, Vineyard, UT.

Richards, D. C. and T. Miller. 2019a. Utah Lake Research 2017-2018: Progress Report: Continued analysis of Utah Lake’s unique foodweb with a focus on the role of nutrients, phytoplankton, zooplankton, and benthic invertebrates on cyanoHABs. Chapter 1: Phytoplankton Assemblages. Submitted to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D. C. and T. Miller. 2019b. A Provisional Multi-Metric Index of Biological Integrity (MIBI) to Assess Water Quality in Utah Lake centered on Regulatory Directives. Draft Technical Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard, UT.

Richards, D. C. and T. Miller. 2019c. Apparent extinction of native mussels in Lower Mill Creek and Mid-Jordan River, Utah. Western North American Naturalist. 79(1): 72-84.

Richards, D.C. 2019d. Zooplankton assemblages in highly regulated Utah Lake: 2015-2018gress Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2019e. Spatial and Temporal Variability of Zooplankton Body Lengths in Utah Lake. Technical Memo to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. 2019f. Spatial and Temporal Variability in Zooplankton Assemblages in Utah Lake 2015 to 2019. Progress Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT.

Richards, D.C. et al. 2019g. Factors Effecting the Ecological Health and Integrity of Utah Lake with a Focus on the Relationships between Water Column Regulators, Benthic Ecosystem Engineers, and CyanoHABs. Progress Report 2020. Version 2.3. Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Ecological, Vineyard, UT.

Richards, D. C. 2018. Relationships between Phytoplankton Richness and Diversity, Zooplankton Abundance, and cyanoHAB Dominance in Utah Lake, 2016. Technical Report to Wasatch Front Water Quality Council, Salt Lake City, UT. OreoHelix Consulting. 67pp.

Richards, D. C. 2017a. Native Unionoida Surveys, Distribution, and Metapopulation Dynamics in the Jordan River-Utah Lake Drainage, UT. Report to Wasatch Front Water Quality Council. Salt Lake City, UT. OreoHelix Consulting, Vineyard, UT. Version 1.5 May, 26, 2017.

Richards, D. C. and T. Miller. 2017b. A preliminary analysis of Utah Lake’s unique foodweb with a focus on the role of nutrients, phytoplankton, zooplankton, and benthic invertebrates on HABs. Utah Lake Research 2016. Progress Report. Wasatch Front Water Quality Council, Salt Lake City, UT.