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      <marc:subfield code="a">Dale, Alec R, </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Growth rate and biomass responses of periphytic algae to phosphorus enrichment in experimental flumes, Athabasca River, seasonal variation, 1993 and 1994 /  </marc:subfield>
      <marc:subfield code="c">prepared for the Northern River Basins Study under project 2613-D1 by Alec R. Dale and Patricia A. Chambers.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Edmonton, Alberta : </marc:subfield>
      <marc:subfield code="b">Northern River Basins Study, </marc:subfield>
      <marc:subfield code="c">1995.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©1995</marc:subfield>
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      <marc:subfield code="a">1 online resource (v, 43 pages) : </marc:subfield>
      <marc:subfield code="b">maps, charts.</marc:subfield>
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      <marc:subfield code="a">Northern River Basins Study project report, </marc:subfield>
      <marc:subfield code="y">1192-3571 ; </marc:subfield>
      <marc:subfield code="v">no. 68</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">"December 1995."</marc:subfield>
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    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 18-21).</marc:subfield>
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      <marc:subfield code="a">"This report presents the results of an experiment conducted in artificial streams (flumes) in which the growth rate and biomass response of periphyton (algae) was studied in relation to phosphorus (P) concentrations in the water. The goal of this study was to determine whether periphyton growth in the Athabasca River is phosphorus limited, and if the degree of phosphorus limitation varied seasonally. The experiment was designed to test periphyton growth and biomass response to a gradient of phosphorus additions during fall and early spring. The flumes were located on-site, adjacent to the Athabasca River at Hinton"--Study perspective.</marc:subfield>
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      <marc:subfield code="a">Issued also in print format.</marc:subfield>
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      <marc:subfield code="a">Algae</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca River</marc:subfield>
      <marc:subfield code="x">Growth.</marc:subfield>
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      <marc:subfield code="a">Water</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca River</marc:subfield>
      <marc:subfield code="x">Phosphorus content.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Algues</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca, Rivière</marc:subfield>
      <marc:subfield code="x">Croissance.</marc:subfield>
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      <marc:subfield code="a">Eau</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca, Rivière</marc:subfield>
      <marc:subfield code="x">Teneur en phosphore.</marc:subfield>
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      <marc:subfield code="a">Northern River Basins Study (Canada)‏, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="t">Growth rate and biomass responses of periphytic algae to phosphorus enrichment : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.612887</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Northern River Basins Study project report ;</marc:subfield>
      <marc:subfield code="v">no. 68.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.883506</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">2758 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-68-eng.pdf</marc:subfield>
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