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      <marc:subfield code="a">Battle, Helen I., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">The effect of extreme physical factors on the early embryonic development of Asterias vulgaris. </marc:subfield>
      <marc:subfield code="p">Report 1925 - 26 / </marc:subfield>
      <marc:subfield code="c">Helen I. Battle.</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>
      <marc:subfield code="v">no. 88</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Department of Fisheries and Oceans].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 17).</marc:subfield>
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      <marc:subfield code="a">"During the early part of July 1925, a brief study of the effect of extreme temperatures and salinities on the early embryonic development of Asterias vulgaris was made at the Atlantic Biological Station, St. Andrews, N.B."--Page 1.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Fisheries Research Board of Canada. </marc:subfield>
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    <marc:datafield tag="610" ind1="2" ind2="6">
      <marc:subfield code="a">Office des recherches sur les pêcheries du Canada. </marc:subfield>
      <marc:subfield code="b">Station biologique (St. Andrews, N.-B.)</marc:subfield>
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      <marc:subfield code="a">Asterias vulgaris</marc:subfield>
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      <marc:subfield code="a">Asterias vulgaris</marc:subfield>
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      <marc:subfield code="x">Effect of temperature on.</marc:subfield>
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      <marc:subfield code="a">Asterias vulgaris</marc:subfield>
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      <marc:subfield code="a">Asterias vulgaris</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Asterias vulgaris</marc:subfield>
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      <marc:subfield code="x">Effets de la température sur.</marc:subfield>
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      <marc:subfield code="a">Asterias vulgaris</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. 88.</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/Fs52-3-88-eng.pdf</marc:subfield>
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