00000nam 2200000zi 4500 9.878033 CaOODSP 20241203113651 m go d f cr |n||||||||| 190815s1992 oncb #otb f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-on En13-5/92-60E-PDF Hartig, John Henry, 1952- author. Towards defining aquatic ecosystem health for the Great Lakes / J.H. Hartig and M.A. Zarull. Burlington, Ontario : Lakes Research Branch, National Water Research Institute, [1992] 1 online resource (19 pages) : map. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 92-60 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 11-14). "The Canada-U.S. Great Lakes Water Quality Agreement defines Areas of concern as geographic areas that fail to meet the general or specific objectives of the Great Lakes Water Quality Agreement where such failure has, caused or is likely to cause impairment of beneficial use or the area’s ability to support aquatic life"--Abstract. Includes abstract in French. gccst Aquatic ecosystems gccst Lakes Zarull, Michael A. (Michael Anthony) author. Canada. Environment Canada. National Water Research Institute (Canada). Lakes Research Branch. NWRI contribution ; 92-60. (CaOODSP)9.844121 PDF 2.36 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-92-60-eng.pdf