000 02111nam  2200301za 4500
0019.847889
003CaOODSP
00520221107153538
007cr |||||||||||
008171128s1985    onca|||fo    f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn-on
0861 |aEn13-5/85-37E-PDF
1001 |aCharlton, Murray N.
24510|aLake Erie oxygen revisited |h[electronic resource] / |cby Murray N. Charlton.
260 |aBurlington, Ont. : |bAquatic Ecology Division, National Water Research Institute, Canada Centre for Inland Waters, |c[1985].
300 |a31, [5] p. : |bill.
4901 |aNWRI contribution ; |v85-37
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"The problem of predicting the future hypolimnion oxygen regime in Lake Erie from past records is re-assessed. Instead of comparing oxygen depletion rates, the data were manipulated to reveal comparable concentrations at the end of August each year. By removing confusion caused by variable concentrations at the beginning of stratification, the expected change of 0-2 mg/L from the 1950s to present was revealed. The oxygen regime of the east basin has changed little if at all; the year to year variability being as large as possible trends in concentration. A water sampling device used in the earliest samplings was found to produce incorrect samples under certain conditions thereby lessening confidence in the early data. The trajectory of oxygen concentration after stratification is independent of epilimnion productivity. It is proposed that oxygen depletion depends on average trophic conditions preceeding each stratified season"--Abstract.
69207|2gccst|aWater quality
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 85-37|w(CaOODSP)9.844121
85640|qPDF|s2.39 MB|uhttps://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-37-eng.pdf