Algal Colonization under Four Experimentally-Controlled Current Regimes in High Mountain Stream

N. LeRoy Poff, Neal J. Voelz, J. V. Ward, R. E. Lee

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    Algal colonization and assemblage development were examined on unglazed ceramic tiles in flow-through troughs over a 42-d period (summer 1987) in the regulated upper Colorado River (?2400 m a.s.l.). The unusually constant discharge of the stream, coupled with the trough design, allowed the establishment and maintenance of four controlled current regimes that differed with respect to range of free-stream velocity and associated near-substratum hydraulic conditions: 1) depositional (free-stream current velocity
    Original languageEnglish
    Pages (from-to)303-318
    Number of pages16
    JournalJournal of the North American Benthological Society
    Issue number4
    Publication statusPublished - 1 Dec 1990


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