00000nam 2200000zi 4500 9.888845 CaOODSP 20241127082707 m o d f cr bn||||||||| 200702s1976 oncab ob f000 0 eng d CaOODSP eng rda CaOODSP nl----- x6x7 En36-522/125-1976E-PDF Dobson, H. F. H. (Hugh F. H.) author. Eutrophication status of the Great Lakes / by Hugh F.H. Dobson. Burlington, Ontario : Canada Centre for Inland Waters, 1976. 1 online resource (124 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier [Unpublished report] "First draft, April 1976." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 85-94). "Data on four eutrophication indicators, collected in the years 1966 to 1975 by the Canada Centre for Inland Waters, have been summarized. The data for offshore, near-surface waters are condensed to summertime averages for each year, to search for trends. The parameters are: Secchi transparency, chlorophyll a, particulate organic carbon, and total phosphorus. Basins examined are: Lakes Superior, Huron and Ontario and Central Lake Erie. Lake Michigan is omitted"--Abstract, page 4. Issued also in print format. Eutrophication Great Lakes (North America) Water quality Great Lakes (North America) Eutrophisation Grands Lacs (Amérique du Nord) Eau Qualité Grands Lacs (Amérique du Nord) Canada Centre for Inland Waters, issuing body. Unpublished report (Canada Centre for Inland Waters) (CaOODSP)9.881827 PDF 3.44 MB https://publications.gc.ca/collections/collection_2020/eccc/en36-522/En36-522-125-1976-eng.pdf