00000nam 2200000zi 4500 9.874399 CaOODSP 20241203113649 m o d f cr bn||||||||| 190606s1995 onca ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc n-cn-on En13-5/95-12E-PDF Reynoldson, Trefor B., author. Studies of effects of metal mine discharges on benthic organisms / by T. Reynoldson, A. Mudroch, F. Rosa, J. Azcue. [Ottawa] : Environment Canada, Water Science and Technology Directorate = Environnement canada, Direction générale des sciences et de la technologie, eau, [1995] 1 online resource (12 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 95-12 Cover title. "Paper presented at Sudbury 95, Conference on Mining and Environment, Sudbury, Ontario, May 28th - June, 1995." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Different approaches have been used to asses environmental impact of metal mine discharges. Complete assessment of the impact of the metal mine discharges on aquatic ecosystems must include a biological component in addition to the evaluation of physical and chemical processes. Benthic invertebrates are very appropriate for evaluating the contamination of lake or stream sediments from mining activities. These organisms reside in the sediments or at the sediment/water interface; they do not move a great deal and are therefore spatially representative; their populations are relatively stable in time; their taxonomy is reasonably well established; and their responses to environmental changes have been studied extensively. Experiments with benthic invertebrates under controlled conditions are useful for studying effects of individual processes affecting the quality of the sediments. Results from different sediment toxicity bioassays accompanied by field observations on benthos in streams and lakes in the vicinity of active or abandoned are demonstrated"--Abstract. gccst Mining industry gccst Water pollution gccst Pollutants gccst Sediments gccst Toxicology Mudroch, Alena, author. Rosa, Fernando, author. Azcue, José M., 1957- author. Canada. Environment Canada. Canada. Water Science and Technology Directorate. National Water Research Institute (Canada) NWRI contribution ; 95-12. (CaOODSP)9.844121 PDF 1.72 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-95-12-eng.pdf