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The effects of elevated metals on benthic community metabolism in a rocky mountain stream

Citation

Hill, Brian H, Lazorchak, James M, McCormick, Frank H, and Willingham, W Thomas, The effects of elevated metals on benthic community metabolism in a rocky mountain stream: .

Summary

The effects of elevated metals (dissolved Zn, Mn and/or Fe) in a Rocky Mountain stream were assessed using measures of primary productivity, community respiration and water-column toxicity. Primary productivity was measured as rates of O2 evolution from natural substrates incubated in situ in closed chambers. Oxygen depletion within these chambers, when incubated in the dark, provided estimates of periphyton community respiration. Sediment community respiration on fine-grained sediments, collected and composited along each stream study reach, was measured on-site by incubating these sediments in closed chambers and measuring O2 depletion. Toxicity was measured as percent mortality of Ceriodaphnia dubia during 48 h acute tests. Gross [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 07:58:02 MDT 2012

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Title Citation The effects of elevated metals on benthic community metabolism in a rocky mountain stream

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