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Rainbow trout growth data and growth covariate data from Glen Canyon, Colorado River, Arizona, 2012-2021 These data are the primary data used to model rainbow trout growth in Glen Canyon. Fish growth data were collected from nighttime boat electrofishing field campaigns conducted five to six times per year in April, July, September, and January, from April 2012 through November 2021 for a total of 9798 observations of mark-recapture-based growth. Sampling was conducted in a five km reach in the lower portion of the Glen Canyon tailwater (3.7-8.9 km upstream of Lees Ferry, AZ). Two nights of sampling occurred on each trip, with the central 2-3 km of the reach sampled on both nights. After capture, fish were kept in aerated 40-L buckets and transported to a central processing location. Groups of 10-15 fish were anesthetized... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geography, All tags... Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), Upper Colorado River, Water Resources, Wildlife Biology, animal tracking, biomass, biota, controlled flooding, data release, droughts, electrofishing, experimental flow, field inventory and monitoring, field sampling, fish, fish growth, fish weight, fork length, hydropeaking, inlandWaters, mark-recapture, phosphorus, rainbow trout, river reaches, streamflow, tailwater, water quality, water temperature, Fewer tags Gross primary production estimates and associated light, sediment, and water quality data from the Colorado River below Glen Canyon Dam These data were compiled to model the effects of flow regime and bed grain size distributions on rates of gross primary production (GPP) in the Colorado River below Glen Canyon Dam, AZ, USA. The objectives of our study were to quantify daily and weekly scale effects of an experimental flow regime on GPP in the Colorado River. The experimental flow was conducted at Glen Canyon Dam from May-August in 2018, 2019, and 2020 and contrasted steady-low flows on weekend days with business-as-usual hydropeaking flows during weekdays. This data release only contains data through 2019. These data represent daily-scale estimates of GPP, discharge, turbidity, water depth, and canyon shading for eleven reaches on the Colorado... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geochemistry, All tags... Geography, Glen Canyon, Glen Canyon Dam, Grand Canyon, Grand Canyon National Park, Hydrology, Information Sciences, Limnology, Marble Canyon, Sedimentology, USGS Science Data Catalog (SDC), USGS gage, Water Quality, Water Resources, bed grain size distributions, canyon shading, data release, discharge, dissolved gases, environment, experimental flow regime, field inventory and monitoring, flow regime, gas transfer, grain-size analysis, gross primary production, hydropeaking flows, inlandWaters, light attenuation, northern Arizona, sediment transport, stream discharge, stream-gage measurement, streamflow, surface water quality, turbidity, water depth, water quality, water resources, water sampling, water-quality data, weekly mean discharge, weekly mean gamma, Fewer tags