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    <marc:controlfield tag="008">190204s1987    oncab   o    f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">eng</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">En13-5/87-71E-PDF</marc:subfield>
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      <marc:subfield code="a">Painter, Scott, </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">Investigation into the disappearance of Eurasian water milfoil in the Kawartha Lakes / </marc:subfield>
      <marc:subfield code="c">D.S. Painter and K.J. McCabe.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
      <marc:subfield code="b">Lakes Research Branch, National Water Research Institute, Canada Centre for Inland Waters, </marc:subfield>
      <marc:subfield code="c">1987.</marc:subfield>
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    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (111 pages) : </marc:subfield>
      <marc:subfield code="b">maps, graphs.</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">87-71</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Cover title.</marc:subfield>
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      <marc:subfield code="a">"Branch control no. ECD-166B."</marc:subfield>
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      <marc:subfield code="a">"March 5, 1987."</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"This manuscript has been submitted to NWRI publication and the contents are subject to change. This copy is to provide information prior to publication."</marc:subfield>
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      <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.</marc:subfield>
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    <marc:datafield tag="520" ind1="3" ind2=" ">
      <marc:subfield code="a">"Eurasian watermilfoil, a nuisance aquatic plant, rapidly disappeared from three Kawartha Lakes for no apparent reason. The role of sediment in the growth and disappearance of milfoil was examined in Buckhorn, Chemung, and Scugog, three Kawartha Lakes, and Opinicon, a Rideau Lake"--Abstract.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes a management perspective in French.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="a">McCabe, K. J., </marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada). </marc:subfield>
      <marc:subfield code="b">Lakes Research Branch.</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-71-eng.pdf</marc:subfield>
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