00000nam 2200000zi 4500 9.870527 CaOODSP 20241203113647 m o d f cr bn||||||||| 190325s1990 oncb ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-on En13-5/90-71E-PDF Dutka, B. J., author. Use of bioassays to evaluate Thames River water and sediment quality / by B.J. Dutka [and six others]. Burlington, Ontario : Rivers Research Branch, National Water Research Institute, Canada Centre for Inland Waters, 1990. 1 online resource (4 unnumbered pages, 22 pages, 9 unnumbered pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 90-71 Imperfect copy: the cover is wanting. "RRB 90-34." "March 1990." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "In trying to establish the extent and degree of impact of point and non-point source contaminants on riverine systems, it is important to know the implications of the data obtained from various sampling points in a riverine system. Spatial variability between water and/or sediment samples collected in close approximation at the same sites was assessed by the battery of tests approach. In these samples there appeared to be no consistent relationship between sediment structure, microbial population and toxicant concentrations. Furthermore the ATP-TOX System and Mutatox tests were the most responsive tests in all types of samples. Since sediments with their bound contaminants may be an important factor in this data interpretation, different methods for releasing and concentrating the sediment bound contaminants were evaluated. The results and implications of these results are described"--Abstract. Includes abstract and management perspective in French. gccst Rivers gccst Water quality gccst Sediments gccst Bioassay Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. NWRI contribution ; 90-71. (CaOODSP)9.844121 PDF 2.12 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-71-eng.pdf