<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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      <marc:subfield code="a">Archibald, C. P., </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 user's guide to Fournier's catch-at-age model / </marc:subfield>
      <marc:subfield code="c">by Chris P. Archibald, David Fournier, and B.M. Leaman.</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, Fisheries Research Branch, Pacific Biological Station, </marc:subfield>
      <marc:subfield code="c">February 1983.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©1983</marc:subfield>
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      <marc:subfield code="a">1 online resource ([iii], 81 pages) : </marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Canadian manuscript report of fisheries and aquatic sciences, </marc:subfield>
      <marc:subfield code="x">0706-6473 ; </marc:subfield>
      <marc:subfield code="v">1688</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 (page 30).</marc:subfield>
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      <marc:subfield code="a">"A user's guide to the operation of a new catch-at-age model developed by D. Fournier (Fournier and Archibald 1982) is presented. A  detailed example using simulated data is described in stepwise fashion. The guide allows users to examine the influence of various parameters in the reconstruction of stock histories as well as to include additional information such as estimates of ageing errors, stock-recruit relations, or errors in input data. The influences of these elements are demonstrated through comparison of the model estimates of abundance at age with the known, simulated data. Computer code for the model is not included"--Abstract, page [iii].</marc:subfield>
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      <marc:subfield code="a">Includes abstracts in English and French.</marc:subfield>
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      <marc:subfield code="a">Fish populations</marc:subfield>
      <marc:subfield code="x">Mathematical models.</marc:subfield>
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      <marc:subfield code="a">Poissons</marc:subfield>
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      <marc:subfield code="x">Modèles mathématiques.</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="b">Pacific Biological Station, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Canadian manuscript report of fisheries and aquatic sciences ;</marc:subfield>
      <marc:subfield code="v">1688.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.505211</marc:subfield>
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    <marc:datafield tag="856" ind1="4" ind2="0">
      <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_2026/mpo-dfo/fs97-4/Fs97-4-1688-eng.pdf</marc:subfield>
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