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      <marc:subfield code="a">Barnucz, J., </marc:subfield>
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      <marc:subfield code="a">Targeted sampling for northern madtom (Noturus stigmosus) in the Thames River, Ontario, 2022 / </marc:subfield>
      <marc:subfield code="c">by Jason Barnucz, Carly J. White, Robin C. Gáspárdy, Julia E. Colm, D. Andrew R. Drake.</marc:subfield>
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      <marc:subfield code="a">Burlington, ON : </marc:subfield>
      <marc:subfield code="b">Fisheries and Oceans Canada, Ontario and Prairie Region, Great Lakes Laboratory for Fisheries and Aquatic Sciences, </marc:subfield>
      <marc:subfield code="c">2026.</marc:subfield>
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      <marc:subfield code="c">©2026</marc:subfield>
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      <marc:subfield code="a">Canadian data report of fisheries and aquatic sciences, </marc:subfield>
      <marc:subfield code="x">1488-5395 ; </marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 5).</marc:subfield>
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      <marc:subfield code="a">"Northern Madtom (Noturus stigmosus), a species listed as Endangered under Canada's Species at Risk Act, exhibits a limited geographic distribution in southwestern Ontario, with extant populations in the Detroit River, St. Clair River, Thames River, and Lake St. Clair. In 2022, Fisheries and Oceans Canada conducted targeted sampling for Northern Madtom in the Thames River as part of ongoing research to better understand the distribution of the species in Canada. Repeat-pass trawling was used to re-sample historical detection locations in a 20 km stretch between Dutton-Dunwich and Big Bend conservation areas"--Abstract, page vii.</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">Northern madtom</marc:subfield>
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      <marc:subfield code="z">Thames River.</marc:subfield>
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      <marc:subfield code="a">Fish surveys</marc:subfield>
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      <marc:subfield code="z">Thames River.</marc:subfield>
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      <marc:subfield code="a">Inventaires ichtyologiques</marc:subfield>
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      <marc:subfield code="z">Thames, Rivière.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">Great Lakes Laboratory for Fisheries and Aquatic Sciences, </marc:subfield>
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      <marc:subfield code="a">Canadian data report of fisheries and aquatic sciences,</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-13/Fs97-13-1450-eng.pdf</marc:subfield>
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