00000nam 2200000za 4500 9.849773 CaOODSP 20241203113641 cr ||||||||||| 180110s1986 onca|||fob f000 0 eng d CaOODSP eng n-cn-on En13-5/86-139E-PDF Charlton, Murray N. Commentary on the possible effects of phosphorus loading reductions on oxygen depletion in Lake Simcoe [electronic resource] / by M.N. Charlton & L.L. Janus. Lake Simcoe oxygen Burlington, Ont. : National Water Research Institute, 1986. 1 v. (various pagings) : ill. NWRI contribution ; no. 86-139 "July 11, 1986". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "As in many other lakes, eutrophication has been a concern in Lake Simcoe for some time. Due to the diversity of nutrient sources, control of large portions of total phosphorus loadings is difficult. Nevertheless, significant loading reductions have occurred and further reductions are proposed. The fishery in Lake Simcoe is apparently impacted by eutrophication through the oxygen depletion process which occurs in the cold bottom water during summer. Under current conditions, the cold water fish are restricted to a narrow band of water which is the only suitable habitat existing by the end of summer. Thus, although surface water quality is important, there is interest in whether further phosphorus controls will ameliorate oxygen depletion and thereby allow greater utilization of the aquatic habitat by the fish"--Introd. gccst Water quality gccst Lakes gccst Ecology Janus, Lorraine L. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 86-139 (CaOODSP)9.844121 PDF 1.71 MB https://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-139-eng.pdf