Rainbow trout diet and invertebrate drift data from 2012-2015 for the Colorado River, Grand Canyon, Arizona

These data were compiled to explore the foraging ecology of Rainbow Trout (Oncorhynchus mykiss) in the Colorado River, Grand Canyon, Arizona. These data represent samples characterizing the availability of drifting invertebrate prey (hereafter, drift) and use of these invertebrate prey by rainbow trout determined by gut samples (hereafter, diets). Drift and diet sampling occurred in five distinct reaches downstream of Glen Canyon Dam (river kilometer (rkm) from the dam): (I) rkm 16.3-21.7; (II) rkm 52.8-58.3; (III) rkm 86.6-91.9; (IV) rkm 122.0-123.6; and (V) rkm 127.1-129.6. Samples were taken on 12 trips in April, July, September and January from April 2012 through January 2015. The aquatic prey base consists...

Categories: Data; Tags: Aquatic Biology, Arizona, Bayesian discrete choice model, Colorado River, Ecology, All tags... Geography, Glen Canyon Dam, Grand Canyon, Information Sciences, New Zealand mudsnail, USGS Science Data Catalog (SDC), amphipod crustacean, aquatic Diptera, aquatic biology, aquatic ecosystems, aquatic prey, aquatic worms, biota, black flies, crustaceans, diet, discrete choice models, drift, drifting invertebrate prey, ecological processes, ecology, field sampling, forage, foraging, gut samples, invertebrate drift, invertebrates, mathematical modeling, midges, predation, predator, prey, prey selection, rainbow trout, samples, sampling, worms, Fewer tags