00000nam 2200000zi 4500 9.874285 CaOODSP 20241203113649 m o d f cr bn||||||||| 190605s1995 onca ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-on En13-5/95-26E-PDF Jackson, Togwell, author. Selective toxic effects of heavy metals on reproductive activities of the oligochaete tubifex in lake sediments polluted with mine tailings / by T. Jackson, T. Reynoldson, K. Zhou, N. Nguyen. Selective toxic effects of heavy metals on reproductive activities of the oligochaete Tubifex tubifex in lake sediments polluted with mine tailings [Ottawa] : Environment Canada, Water Science and Technology Directorate = Environnement canada, Direction générale des sciences et de la technologie, eau, [1995] 1 online resource (5 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier [NWRI contribution] ; 95-26 Cover title. "Expected vehicle of publication: Proceedings of 10th International Conference on Heavy Metals in the Environment (Hamburg, September, 1995)." Also prepared by: F. Rosa, A. Mudroch. Confer caption title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The paper highlights selected results and conclusions of an research project on interdisciplinary the biogeochemistry and toxic effects of various heavy metals (copper, zinc, cadmium, lead, nickel, and chromium) at different sites in Larder Lake, Ontario, a small Canadian Shield lake polluted with tailings from a gold mine. Data on solvent-extractable metal and total metal concentrations in the sediments, as well as various natural metal-binding agents in the sediments (e.g. oxyhydroxides and humic matter) and other sediment characteristics which define the sedimentary environment (e.g. pH and Eh), were compared with measurements of toxic effects of the sediments on different reproductive functions of the common benthic segmented worm, Tubifex tubifex. In addition, relevant data on fundamental properties of the metals (e.g. polarisability, ionisation potentials, and crystal field stabilisation energy) were gleaned from the literature and used in the interpretation of metal behaviour"--Management perspective. Reynoldson, Trefor B., author. Zhou, K., author. Nguyen, N., author. Rosa, Fernando, author. Mudroch, Alena, author. Canada. Environment Canada. Canada. Water Science and Technology Directorate. National Water Research Institute (Canada). Aquatic Ecosystem Restoration Branch. NWRI contribution ; 95-26. (CaOODSP)9.844121 PDF 1.08 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-95-26-eng.pdf