00000nam 2200000za 4500 9.848570 CaOODSP 20241203113640 cr ||||||||||| 171211s1985 onca|||fob|||f000 0 eng d CaOODSP eng eng fre n-cn--- En13-5/85-106E-PDF Esterby, S. R. Statistical methods for studying biotic responses to persistent toxic substances [electronic resource] / by S.R. Esterby. Burlington, Ont. : National Water Research Institute, Canada Centre for Inland Waters, 1985. 1 v. (various pagings) : ill. NWRI contribution ; 85-106 Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references: p. 29-34. "The applications for statistical methods are discussed in the context of the complementary roles of laboratory experiments and field studies in establishing cause and effect and explaining environmental significance. The continuity of the steps from the design of the study to the analysis of the results and the importance of the use of statistical methods in study design are emphasized. The techniques of design and methods of analysis are discussed for three types of studies, showing how the degree of control affects the statistical methods and the strength of the conclusions. Examples drawn from field studies of benthic invertebrates are used to illustrate the use of random sampling in field studies and to give some methods of statistical analysis suitable for observational studies, A review of this very broad topic was not attempted. Rather, statistical principles, of use in many types of studies, were identified and discussed"--Abstract, A-i. Includes management perspective and abstract in French. gccst Statistical analysis gccst Toxic substances gccst Aquatic ecosystems Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-106 (CaOODSP)9.844121 PDF 2.68 MB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-106-eng.pdf