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| 01864cam 2200349za 4500 |
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| 001 | 9.849772 |
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| 003 | CaOODSP |
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| 005 | 20221107154010 |
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| 007 | cr ||||||||||| |
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| 008 | 180110s1986 onca|||fob f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aEn13-5/86-138E-PDF |
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| 100 | 1 |aKnowles, R. |q(Roger) |
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| 245 | 10|aNitrification, a significant cause of oxygen depletion under winter ice |h[electronic resource] / |cby Roger Knowles and David R.S. Lean. |
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| 260 | |aBurlington, Ont. : |bNational Water Research Institute, |c[1986]. |
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| 300 | |a23, [4] p. : |bill. |
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| 490 | 1 |aNWRI contribution series ; |vno. 86-138 |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references: p. 14-17. |
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| 520 | 0 |a"Changes in concentrations of oxygen and the various nitrogenous forms in Lake St. George from 1976 to 1964 showed that nitrification (conversion of ammonium to nitrite and nitrate) caused an average of 71% of the winter oxygen depletion.This represents the most significant biological processes in the winter months. In fact, it is 30 X greater than plant photosynthesis. Bottle bioassays for nitrification were evaluated to determine how well they would predict rates measured in the lake itself"--Management perspective. |
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| 546 | |aIncludes abstract and management perspective in French. |
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| 692 | 07|2gccst|aWater quality |
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| 692 | 07|2gccst|aLakes |
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| 692 | 07|2gccst|aEcology |
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| 700 | 1 |aLean, David R. S. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aNational Water Research Institute (Canada) |
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| 830 | #0|aNWRI contribution ;|vno. 86-138|w(CaOODSP)9.844121 |
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| 856 | 40|qPDF|s1.68 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-138-eng.pdf |
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