<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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    <marc:controlfield tag="006">m     o  d f      </marc:controlfield>
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    <marc:controlfield tag="008">250708s1936    onc     o    f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">CaOODSP</marc:subfield>
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      <marc:subfield code="e">rda</marc:subfield>
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      <marc:subfield code="a">Fs52-3/82GE-PDF</marc:subfield>
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      <marc:subfield code="a">Needler, Alfreda Berkeley </marc:subfield>
      <marc:subfield code="d">1903-1951 </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Sex reversal in Ostrea virginica / </marc:subfield>
      <marc:subfield code="c">author A. Berkeley Needler.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="250" ind1=" " ind2=" ">
      <marc:subfield code="a">Report for 1936.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Biological Board of Canada, </marc:subfield>
      <marc:subfield code="c">1936.</marc:subfield>
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      <marc:subfield code="a">1 online resource (9 pages).</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:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Manuscript reports of the biological stations ; </marc:subfield>
      <marc:subfield code="v">no. 82G</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Department of Fisheries and Oceans].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"The work done in 1936 was a continuation of previous studies. Records were continued of the sex of a number of marked oysters and experiments were carried on designed to show the effect of crowding on sex determination"--Page [1].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">American oyster</marc:subfield>
      <marc:subfield code="x">Development</marc:subfield>
      <marc:subfield code="x">Endocrine aspects</marc:subfield>
      <marc:subfield code="x">Research.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Intersexuality in animals</marc:subfield>
      <marc:subfield code="x">Research.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Crowding stress in animals</marc:subfield>
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    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Huître américaine</marc:subfield>
      <marc:subfield code="x">Développement</marc:subfield>
      <marc:subfield code="x">Aspect endocrinien</marc:subfield>
      <marc:subfield code="x">Recherche.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Hermaphrodisme chez les animaux</marc:subfield>
      <marc:subfield code="x">Recherche.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Stress dû à la surpopulation chez les animaux</marc:subfield>
      <marc:subfield code="x">Recherche.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">Biological Board of Canada, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="794" ind1=" " ind2=" ">
      <marc:subfield code="t">Sex reversal in Ostrea virginica / </marc:subfield>
      <marc:subfield code="b">Report for 1937</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.952999</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="795" ind1=" " ind2=" ">
      <marc:subfield code="t">Sex reversal in Ostrea virginica / </marc:subfield>
      <marc:subfield code="b">Report for 1935</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.952992</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Manuscript reports of the biological stations ;</marc:subfield>
      <marc:subfield code="v">no. 82G.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.899091</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">1.58 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs52-3/Fs52-3-82G-eng.pdf</marc:subfield>
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