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      <marc:subfield code="a">Rao, S. S. </marc:subfield>
      <marc:subfield code="q">(Salem S.), </marc:subfield>
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      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Microbiological studies of lakes receiving acidic deposition / </marc:subfield>
      <marc:subfield code="c">by S.S. Rao and B.K. Burnison.</marc:subfield>
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      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"The goal of this article is to explore the nature and extent of the effects of acidic deposition on lake bacteria in some Ontario lakes and the use of these populations from lake sediments as indicators of acid stress. An emphasis is placed on those parameters which correlate with the diminished capacity for degrading organic materials. The philosophy and ideas that form the basis for our studies here in Ontario may be applicable to developing studies on lakes receiving acidic deposition in Western Canada"--Introduction, page 2.</marc:subfield>
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      <marc:subfield code="a">Bacteria--Effect of acid precipitation on--Ontario</marc:subfield>
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      <marc:subfield code="a">Lake sediments--Ontario</marc:subfield>
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      <marc:subfield code="a">Lake acidification--Ontario</marc:subfield>
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      <marc:subfield code="a">Burnison, B. K., </marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/En13-5-86-98-eng.pdf</marc:subfield>
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