00000nam 2200000zi 4500 9.951202 CaOODSP 20250520102259 m o d f cr bn||||||||| 250520t19951995abc ob f000 0 eng d 0662234391 print CaOODSP eng rda CaOODSP n-cn-ab R71-49/3-50E-PDF R71-49/3-50E Saffran, Karen Anita, 1968- author. Aquatic macroinvertebrate identifications, Athabasca River, May and September 1993 / prepared for the Northern River Basins Study under project 2327-C1 by K. Saffran, D.A. Westworth and Associates Ltd. Edmonton, Alberta : Northern River Basins Study, 1995. ©1995 1 online resource (iv, 64 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier Northern River Basins Study project report, 1192-3571 ; no. 50 Digitized edition from print [produced by Environment and Climate Change Canada]. "April 1995." Includes bibliographical references (page 22). "Seventy-five invertebrate samples (Eckman dredge) taken from depositional areas of the upper Athabasca river were processed. These samples represented eight sites of five replicates each collected in May 1993, and seven sites of five replicates each collected in September 1993. The number of aquatic invertebrates per sample ranged from 40 to 8028 individuals. Invertebrates were more abundant in the fall samples. Oligochaete worms and chironomid larvae were generally the most commonly occurring organisms"--Report summary. Issued also in print format. Aquatic invertebrates Effect of water pollution on Alberta Athabasca River. Organic water pollutants Alberta Athabasca River. Invertébrés aquatiques Effets de la pollution de l'eau sur Alberta Athabasca, Rivière. Polluants organiques de l'eau Alberta Athabasca, Rivière. Northern River Basins Study (Canada)‏, issuing body. Aquatic macroinvertebrate identifications : (CaOODSP)9.612222 Northern River Basins Study project report ; no. 50. (CaOODSP)9.883506 PDF 2464 KB https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-50-eng.pdf