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      <marc:subfield code="a">McKenzie, Cynthia Hipp, </marc:subfield>
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      <marc:subfield code="a">Harmful algal events in Canadian marine ecosystems : </marc:subfield>
      <marc:subfield code="b">current status, impacts, consequences and knowledge gaps / </marc:subfield>
      <marc:subfield code="c">Cynthia H. McKenzie, Andrea Locke, Sonia Michaud, M. Angelica Peña, Stephen S. Bates, Jennifer L. Martin, Michel Poulin, Luc Comeau, Emmanuel Devred, Nicola Haigh, Kimberly Howland, Claire Moore-Gibbons, R. Ian Perry, André Rochon, Michael G. Scarratt, Michel Starr and Terri Wells.</marc:subfield>
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      <marc:subfield code="a">Ottawa ON : </marc:subfield>
      <marc:subfield code="b">Canadian Science Advisory Secretariat (CSAS), </marc:subfield>
      <marc:subfield code="c">May 2025.</marc:subfield>
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      <marc:subfield code="c">©2025</marc:subfield>
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      <marc:subfield code="a">Research document, </marc:subfield>
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      <marc:subfield code="v">2023/090</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Proliférations d'algues nuisibles dans les écosystèmes marins canadiens : état actuel, effets, conséquences et lacunes dans les connaissances.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"The objectives of this document are to: 1. review HA, HAEs and their impacts in Canada’s Atlantic, Pacific and Arctic marine waters over a 30-year period from 1987 to 2017; 2. determine areas or issues of particular or emerging concern with respect to impacts and consequences to Canadian marine ecosystems and how they may impact core DFO responsibilities; 3. identify key knowledge gaps that limit DFO’s ability to evaluate or inform management decisions regarding the impacts and consequences of these HAEs; and 4. recommend actions to address these knowledge gaps"--page 1.</marc:subfield>
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      <marc:subfield code="a">Toxic marine algae</marc:subfield>
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      <marc:subfield code="a">Algal toxins</marc:subfield>
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      <marc:subfield code="a">Algal blooms</marc:subfield>
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      <marc:subfield code="a">Red tide</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="b">National Capital Region, </marc:subfield>
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      <marc:subfield code="a">Canadian Science Advisory Secretariat, </marc:subfield>
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      <marc:subfield code="t">Proliférations d'algues nuisibles dans les écosystèmes marins canadiens : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.930929</marc:subfield>
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      <marc:subfield code="a">Research document (Canadian Science Advisory Secretariat)</marc:subfield>
      <marc:subfield code="v">2023/090.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.507396</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs70-5/Fs70-5-2023-090-eng.pdf</marc:subfield>
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