<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="001">9.903031</marc:controlfield>
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    <marc:controlfield tag="005">20221107180129</marc:controlfield>
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      <marc:subfield code="c">CaOODSP</marc:subfield>
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      <marc:subfield code="a">eng</marc:subfield>
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      <marc:subfield code="a">Boyce, F. M., </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">Summer thermal structure in the western end of Lake Ontario with reference to the coho salmon fishery / </marc:subfield>
      <marc:subfield code="c">F.M. Boyce, D.G. Robertson.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
      <marc:subfield code="b">Aquatic Physics and Systems Division, National Water Research Institute, </marc:subfield>
      <marc:subfield code="c">March 1984.</marc:subfield>
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    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (49 pages in various pagings) : </marc:subfield>
      <marc:subfield code="b">maps.</marc:subfield>
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      <marc:subfield code="b">txt</marc:subfield>
      <marc:subfield code="2">rdacontent</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
      <marc:subfield code="2">rdamedia</marc:subfield>
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    <marc:datafield tag="338" ind1=" " ind2=" ">
      <marc:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
      <marc:subfield code="2">rdacarrier</marc:subfield>
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      <marc:subfield code="a">[NWRI contribution] ; </marc:subfield>
      <marc:subfield code="v">84-21</marc:subfield>
    </marc:datafield>
    <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">Includes bibliographical references (page 8).</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"A 20-year collection of temperature profiles from the western end of Lake Ontario is used to establish the mean and the standards deviation of the depths of selected temperatures preferred by coho salmon from May through September "--Executive summary.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes executive summary in French.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Thermal pollution of rivers, lakes, etc.</marc:subfield>
      <marc:subfield code="z">Ontario, Lake (N.Y. and Ont.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Coho salmon fisheries</marc:subfield>
      <marc:subfield code="x">Effect of temperature on</marc:subfield>
      <marc:subfield code="z">Ontario, Lake (N.Y. and Ont.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Pollution thermique des cours d'eau, lacs, etc.</marc:subfield>
      <marc:subfield code="z">Ontario, Lac (N.Y. et Ont.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Saumon coho</marc:subfield>
      <marc:subfield code="x">Pêche commerciale</marc:subfield>
      <marc:subfield code="x">Effets de la température sur</marc:subfield>
      <marc:subfield code="z">Ontario, Lac (N.Y. et Ont.)</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">National Water Research Institute (Canada). </marc:subfield>
      <marc:subfield code="b">Aquatic Physics and Systems Division, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
      <marc:subfield code="v">84-21.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.844121</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">2.40 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2021/eccc/En13-5-84-21-eng.pdf</marc:subfield>
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