Clements, W. H. (William H.), authorColorado Water Resources Research Institute, publisher2007-01-032007-01-031991http://hdl.handle.net/10217/950Completion Report No. 163.15 December, 1991.This research examined fate and effects of heavy metals (Cd, Cu, Zn) in the Arkansas River, a Colorado stream receiving metals form historic mining operations. Benthic invertebrate communities were sampled at several stations located upstream and downstream form California Gulch, a U.S. EPA "Superfund" site in Leadville, CO. Impacted stations were characterized by reduced species richness, reduced abundance, and a shift in community composition from metal-sensitive taxa (e.g. Ephemeroptera) to metal-tolerant taxa (Orthocladiini chironomids and Trichoptera).reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Heavy metals -- Environmental aspectsCopper -- BioaccumulationAquatic organisms -- Effect of heavy metals onCadmium -- Environmental aspectsZinc -- Environmental aspectsArkansas RiverCalifornia Gulch (Lake County, Colo.)Text