00000000nam 2200000zi 4500
0019.945815
003CaOODSP
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006m     o  d f      
007cr |n|||||||||
008241202t19961996abcdb   ob   f000 0 eng d
020 |a0662246713|q(print)
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-ab|an-cn-bc|an-cn-nt
0861 |aR71-49/4-5E-PDF|zR71-49/4-5E
1001 |aChambers, Patricia A., |eauthor.
24510|aDissolved oxygen conditions and fish requirements in the Athabasca, Peace and Slave Rivers : |bassessment of present conditions and future trends / |cby P.A. Chambers and T. Mill.
264 1|aEdmonton, Alberta : |bNorthern River Basins Study, |c1996.
264 4|c©1996
300 |a1 online resource (112 pages in various pagings) : |bcharts, maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNorthern River Basins Study synthesis report ; |vno. 5
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
500 |a"May, 1996."
504 |aIncludes bibliographical references (pages 83-91).
520 |a"This report addresses the Northern River Basins Study (NRBS) question: “What concentrations of dissolved oxygen are required seasonally to protect the various life stages of fish, and what factors control dissolved oxygen (DO) in the rivers?” Concern about DO conditions in the Northern Rivers focuses on the ice-covered period when only limited reaeration occurs to replenish any oxygen consumed by oxygen-consuming effluent, river biota and naturally occurring chemical processes. During the remainder of the year, oxygen from the air is incorporated the river water and offsets any losses of oxygen. The report synthesizes results from monitoring, research and modelling studies undertaken as part of the NRBS to characterize loading from all point sources in the Northern River basins, evaluate the impacts of oxygen consuming waste on river chemistry, develop models for predicting DO concentrations in the Athabasca River, assess the response of riverine biota to low DO levels, and investigate interactions between low DO levels and nutrients and contaminants in pulp mill effluent on benthic organisms. These findings are used to assess the state of aquatic ecosystem health, and develop scientific and management recommendations for the Northern River basin"--Summary.
530 |aIssued also in print format.
650 0|aWater|xDissolved oxygen.
650 0|aWater quality|zAlberta|zAthabasca River Watershed.
650 0|aWater quality|zPeace River Watershed (B.C. and Alta.)
650 0|aWater quality|zSlave River Watershed (Alta. and N.W.T.)
650 6|aEau|xOxygène dissous.
650 6|aEau|xQualité|zAlberta|zAthabasca, Bassin de l'.
650 6|aEau|xQualité|zPaix, Bassin de la rivière de la (C.-B. et Alb.)
650 6|aEau|xQualité|zEsclaves, Rivière des (Alb. et T.N.-O.)
7102 |aNorthern River Basins Study (Canada)‏, |eissuing body.
7760#|tDissolved oxygen conditions and fish requirements in the Athabasca, Peace and Slave rivers : |w(CaOODSP)9.613076
830#0|aNorthern River Basins Study synthesis report ;|vno. 5.|w(CaOODSP)9.883432
85640|qPDF|s3979 KB|uhttps://publications.gc.ca/collections/collection_2024/eccc/R71-49-4-5-eng.pdf