00000nam 2200000zi 4500 9.872419 CaOODSP 20241203113648 m o d f cr ||||||||||| 190502s2005 oncbd #ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-on En13-5/05-326E-PDF Milani, D. W., author. Biological effects of mercury-contaminated sediment in northern Thunder Bay, Lake Superior / D. Milani and L.C. Grapentine. Burlington, Ontario : Environment Canada, National Water Research Institute, Aquatic Ecosystem Impacts Research Branch, [2005] 1 online resource (xi, 79 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 05-326 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "There are elevated levels of mercury in sediments of northern Thunder Bay (inner harbour), Lake Superior. To assess impacts on invertebrate communities, sediment toxicity, and the bioavailability of this mercury and its potential for effects on fish and wildlife through biomagnification, a study was conducted involving (a) comparisons of benthic invertebrate communities and laboratory toxicological response to those established for Great Lakes reference sites, (b) comparisons of total and methyl mercury concentration in sediment and resident benthic invertebrates from Thunder Bay to those from Lake Superior reference sites, (c) analyses of the relationships of total and methyl mercury concentrations in invertebrates to those in sediment, and (d) predictions of methyl mercury concentrations in representative consumers of benthic invertebrates and their predators using screening-level trophic transfer models"--Abstract, page i. Includes abstract in English and French. gccst Sediments gccst Mercury gccst Lakes Grapentine, Lee C. (Lee Curtis), 1961- author. Canada. Environment Canada. National Water Research Institute (Canada). Aquatic Ecosystem Impacts Research Branch. NWRI contribution ; 05-326. (CaOODSP)9.844121 PDF 4.39 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-05-326-eng.pdf