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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">A scientific review of the potential environmental effects of aquaculture in aquatic ecosystems. Volume IV. / </marc:subfield>
      <marc:subfield code="h">[electronic resource]</marc:subfield>
      <marc:subfield code="c">[by] W.E. Tymchuk ... [et al.] </marc:subfield>
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      <marc:subfield code="a">Ottawa - Ontario : </marc:subfield>
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      <marc:subfield code="a">Canadian technical report of fisheries and aquatic sciences</marc:subfield>
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      <marc:subfield code="v">No. 2450-4</marc:subfield>
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      <marc:subfield code="a">On t. p. : Science Sector, Ottawa, Ontario. The catalogue number and ISSN for the print edition appear in the PDF version.</marc:subfield>
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      <marc:subfield code="a">Contents: The role of genotype and environment in phenotypic differentiation among wild and cultured salmonids / W.E. Tymchuk, R.H. Devlin and R.E. Withler. -- Cultured and wild fish disease interactions in the Canadian marine environment / A.H. McVicar ... [et al.] -- Trophic interactions between finfish aquaculture and wild marine fish / M.R.S. Johannes.</marc:subfield>
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      <marc:subfield code="a">(Résumé en français)</marc:subfield>
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      <marc:subfield code="a">14-06-Supp</marc:subfield>
      <marc:subfield code="b">2014-03-21</marc:subfield>
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      <marc:subfield code="a">Tymchuk, W. E.</marc:subfield>
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      <marc:subfield code="a">Canadian technical report of fisheries and aquatic sciences,</marc:subfield>
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      <marc:subfield code="v">No. 2450-4</marc:subfield>
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      <marc:subfield code="a">http://publications.gc.ca</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2014/mpo-dfo/Fs97-6-2450-4-eng.pdf</marc:subfield>
      <marc:subfield code="y">No. 2450-4</marc:subfield>
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