000 01830cam  2200337za 4500
0019.855403
003CaOODSP
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008180417s1972    oncbd  #o    f00| 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-ab
0861 |aCW69-1/13E-PDF
1001 |aDirschl, Herman J.
24510|aEvaluation of ecological effects of recent low water levels in the Peace-Athabasca Delta |h[electronic resource] / |cby Herman J. Dirschl.
260 |aOttawa : |bCanadian Wildlife Service, |cc1972.
300 |a28 p. : |bmaps, charts.
4901 |aOccasional paper ; |vno. 13
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"Concern ahout the ecological effects of the altered water regime of the Peace-Athabasca Delta, following completion of the W.A.C. Bennett Dam on the Peace River, led the Canadian Wildlife Service in 1968 to initiate an ecological study. Its objectives are to evaluate the short- and long-term effects of the altered water regime on the ecosystem and to evaluate the environmental parameters which have to be considered in designing measures which would return the delta to a desirable state. This report is a preliminary account of our study of plant succession on exposed silt surfaces"--Abstract.
546 |aIncludes abstract in French.
69207|2gccst|aRivers
69207|2gccst|aBotany
69207|2gccst|aEcology
7101 |aCanada. |bEnvironment Canada.
7102 |aCanadian Wildlife Service.
830#0|aOccasional paper (Canadian Wildlife Service)|vno. 13|w(CaOODSP)9.504780
85640|qPDF|s4.19 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/CW69-1-13-eng.pdf