00000nam 2200000zi 4500 9.951292 CaOODSP 20250522105600 m o d f cr bn||||||||| 250522t19951995abcbd ob f000 0 eng d 0662235592 print CaOODSP eng rda CaOODSP n-cn-ab n-cn-bc R71-49/3-56E-PDF R71-49/3-56E Scrimgeour, Garry J, author. Long-term trends in ecosystem health : quantitative analysis of river benthic invertebrate communities, Peace and Athabasca Rivers / prepared for the Northern River Basins Study under project 2616-C1 by Garry J. Scrimgeour and Patricia A. Chambers, Joseph M. Culp, Kevin J. Cash and Mark S. Ouellette. Edmonton, Alberta : Northern River Basins Study, 1995. ©1995 1 online resource (xv, 107 pages, 70 unnumbered pages) : charts, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Northern River Basins Study project report, 1192-3571 ; no. 56 Digitized edition from print [produced by Environment and Climate Change Canada]. "June 1995." Includes bibliographical references (pages 98-105). "The aim of this report is to assess trends in benthic macroinvertebrate community structure in the Peace-Athabasca Rivers. This work forms part of a larger project whose objective is to develop a data base that can be used to assess the cumulative effects of development on the aquatic resources of the Peace-Athabasca River systems. The specific objectives of this report were: (1) to describe and compile existing long-term data sets for the Peace, Athabasca and Slave Rivers, (2) to the extent possible, review benthic sampling procedures used to produce each data set and the sampling deficiencies associated with them, and (3) where appropriate, perform quantitative statistical analyses on the data set to determine whether patterns in benthic community structure are consistent with those predicted impacts from point-source inputs"--Report summary. Issued also in print format. Aquatic invertebrates Alberta Athabasca River. Aquatic invertebrates Peace River (B.C. and Alta.) Aquatic ecology Alberta. Freshwater ecology Alberta. Invertébrés aquatiques Alberta Athabasca, Rivière. Invertébrés aquatiques Paix, Rivière de la (C.-B. et Alb.) Écologie des eaux Alberta. Écologie d'eau douce Alberta. Northern River Basins Study (Canada)‏, issuing body. Long-term trends in ecosystem health : (CaOODSP)9.612379 Northern River Basins Study project report ; no. 56. (CaOODSP)9.883506 PDF 6342 KB https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-56-eng.pdf