caa a22 4500 445891378 CHVBK 20180317145617.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10750-010-0456-8 doi (NATIONALLICENCE)springer-10.1007/s10750-010-0456-8 Uptake of dissolved nickel by Elodea canadensis and epiphytes influenced by fluid flow conditions [Elektronische Daten] [Amy Hansen, Rebecca Stark, Miki Hondzo] Using a laboratory mesocosm consisting of live plants and epiphytes grown in a re-circulating flume, dissolved nickel uptake by Elodea canadensis Michaux is compared with nickel uptake by the associated epiphytic community under a range of flow conditions. A flux model was developed and applied to the measured tissue nickel concentration data and generated three parameters descriptive of nickel uptake: uptake rate, equilibrium concentration, and time to equilibrium. The relationship of these parameters to flow conditions, represented by the dimensionless variable Reynolds number, was compared between epiphytes and plants. Water flow was shown to have a stronger effect on the uptake performance of epiphytes than that of plants, implying that water-side mass transfer plays a more important role in epiphytic nickel uptake than it does in plant nickel uptake. Although nickel concentrations were much higher in the epiphyte community than in E. canadensis, more total nickel was sequestered in E. canadensis. This research indicates that fluid flow conditions alter nickel uptake by E. canadensis and the epiphytic community and that the two have different preferential flow regimes. It also suggests the promising bioremediation potential of both in moving fluids in aquatic environments. Springer Science+Business Media B.V., 2010 Heavy metal nationallicence Nickel nationallicence Velocity nationallicence Uptake nationallicence Epiphyte nationallicence Macrophyte nationallicence Hansen Amy St Anthony Falls Laboratory, Department of Civil Engineering, University of Minnesota, 2 Third Ave. SE, 55414, Minneapolis, MN, USA aut Stark Rebecca Department of Ecology, Evolution and Behavior, University of Minnesota, 100 Ecology Building, 1987 Upper Buford Circle, 55108, St. Paul, MN, USA aut Hondzo Miki St Anthony Falls Laboratory, Department of Civil Engineering, University of Minnesota, 2 Third Ave. SE, 55414, Minneapolis, MN, USA aut Hydrobiologia Springer Netherlands 658/1(2011-01-01), 127-138 0018-8158 658:1<127 2011 658 10750 https://doi.org/10.1007/s10750-010-0456-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0456-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hansen Amy St Anthony Falls Laboratory, Department of Civil Engineering, University of Minnesota, 2 Third Ave. SE, 55414, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Stark Rebecca Department of Ecology, Evolution and Behavior, University of Minnesota, 100 Ecology Building, 1987 Upper Buford Circle, 55108, St. Paul, MN, USA aut NATIONALLICENCE 700 1- Hondzo Miki St Anthony Falls Laboratory, Department of Civil Engineering, University of Minnesota, 2 Third Ave. SE, 55414, Minneapolis, MN, USA aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 658/1(2011-01-01), 127-138 0018-8158 658:1<127 2011 658 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer