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      <marc:subfield code="a">Robertson, A. D., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Preliminary report on the growth of oysters in eastern Canadian waters / </marc:subfield>
      <marc:subfield code="c">A.D. Robertson.</marc:subfield>
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      <marc:subfield code="a">[Ottawa] : </marc:subfield>
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      <marc:subfield code="a">Manuscript reports of the biological stations ; </marc:subfield>
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      <marc:subfield code="a">"This report deals with about 6480 measurements of 1080 oysters set out in various conditions as to depth, salinity, nature of bottom, height above the bottom and to test the rate of growth at various seasons of the year"--page [1].</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Huîtres</marc:subfield>
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      <marc:subfield code="a">Biological Board of Canada, </marc:subfield>
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      <marc:subfield code="a">Manuscript reports of the biological stations ;</marc:subfield>
      <marc:subfield code="v">no. 75.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.899091</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_2025/mpo-dfo/fs52-3/Fs52-3-75-eng.pdf</marc:subfield>
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