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    <marc:controlfield tag="001">9.950008</marc:controlfield>
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      <marc:subfield code="a">Bowden, D. G., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="2">
      <marc:subfield code="a">A guide to the ovarian histology of Pacific cod / </marc:subfield>
      <marc:subfield code="c">by D.G. Bowden, R.P. Foucher and A.V. Tyler.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Nanaimo, British Columbia : </marc:subfield>
      <marc:subfield code="b">Department of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, </marc:subfield>
      <marc:subfield code="c">February 1990.</marc:subfield>
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      <marc:subfield code="c">©1990</marc:subfield>
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      <marc:subfield code="a">1 online resource (iii, 44 pages) : </marc:subfield>
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      <marc:subfield code="a">text</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>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Canadian technical report of fisheries and aquatic sciences, </marc:subfield>
      <marc:subfield code="x">0706-6457 ; </marc:subfield>
      <marc:subfield code="v">no. 1723</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>
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      <marc:subfield code="a">Includes bibliographical references (pages 6-7).</marc:subfield>
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      <marc:subfield code="a">"The development of the ovary of Pacific cod (Gadus macrocephalus) was examined macroscopically and by microscopic cross section. Oocyte growth and development were recorded by photomicrography for correlation with macroscopic maturity stages of the ovary. Characteristics were described for each maturity stage. A glossary of commonly encountered terms was compiled for use in future investigations of reproductive biology of fishes"--Abstract, page iii.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Includes abstracts in English and French.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Pacific cod</marc:subfield>
      <marc:subfield code="z">British Columbia</marc:subfield>
      <marc:subfield code="z">Pacific Coast</marc:subfield>
      <marc:subfield code="x">Histology.</marc:subfield>
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      <marc:subfield code="a">Ovaries</marc:subfield>
      <marc:subfield code="x">Histology.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Ovum.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Morue du Pacifique</marc:subfield>
      <marc:subfield code="z">Colombie-Britannique</marc:subfield>
      <marc:subfield code="z">Pacifique, Côte du</marc:subfield>
      <marc:subfield code="x">Histologie.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Ovaires</marc:subfield>
      <marc:subfield code="x">Histologie.</marc:subfield>
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      <marc:subfield code="a">Ovules.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Department of Fisheries and Oceans, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">Pacific Biological Station (1972- ), </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Canadian technical report of fisheries and aquatic sciences ;</marc:subfield>
      <marc:subfield code="v">no. 1723.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.504449</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">2.16 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-6/Fs97-6-1723-eng.pdf</marc:subfield>
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