000	02158cam  2200349za 4500
001	9.849773
003	CaOODSP
005	20221107154010
007	cr |||||||||||
008	180110s1986    onca|||fob   f000 0 eng d
040	|aCaOODSP|beng
043	|an-cn-on
086	1 |aEn13-5/86-139E-PDF
100	1 |aCharlton, Murray N.
245	10|aCommentary on the possible effects of phosphorus loading reductions on oxygen depletion in Lake Simcoe |h[electronic resource] / |cby M.N. Charlton & L.L. Janus.
246	37|aLake Simcoe oxygen
260	|aBurlington, Ont. : |bNational Water Research Institute, |c1986.
300	|a1 v. (various pagings) : |bill.
490	1 |aNWRI contribution ; |vno. 86-139
500	|a"July 11, 1986".
500	|aDigitized edition from print [produced by Environment and Climate Change Canada].
504	|aIncludes bibliographical references.
520	0 |a"As in many other lakes, eutrophication has been a concern in Lake Simcoe for some time. Due to the diversity of nutrient sources, control of large portions of total phosphorus loadings is difficult. Nevertheless, significant loading reductions have occurred and further reductions are proposed. The fishery in Lake Simcoe is apparently impacted by eutrophication through the oxygen depletion process which occurs in the cold bottom water during summer. Under current conditions, the cold water fish are restricted to a narrow band of water which is the only suitable habitat existing by the end of summer. Thus, although surface water quality is important, there is interest in whether further phosphorus controls will ameliorate oxygen depletion and thereby allow greater utilization of the aquatic habitat by the fish"--Introd.
692	07|2gccst|aWater quality
692	07|2gccst|aLakes
692	07|2gccst|aEcology
700	1 |aJanus, Lorraine L.
710	1 |aCanada. |bEnvironment Canada.
710	2 |aNational Water Research Institute (Canada)
830	#0|aNWRI contribution ;|vno. 86-139|w(CaOODSP)9.844121
856	40|qPDF|s1.71 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-139-eng.pdf