: Eutrophication is the adding of either organic or inorganic pollutants to the lake to cause decreasing dissolved oxygen levels. Whether the nutrients are organic or inorganic is significant. Organic nutrient (eg, derived from manure, etc ...
http://wiki.answers.com/Q/What_is_Eutrophication_of_a_l...
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Parts of the deepest central basin of Lake Erie still experience occasional anoxia (deficiency of oxygen) in late summer (Bertram 1993), but there is evidence that this may occur even in the absence of human-caused eutrophication (Reynoldson and Hamilton 1993).
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www.ec.gc.ca/soer-ree/English/SOER/1996Report/Doc/1-6-6...
www.ec.gc.ca/soer-ree/English/SOER/1996Report/Doc/1-6-6-4-7-1.cfm
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Eutrophication, the progress of a lake toward a eutrophic condition, is often discussed in terms ... Such changes may occur over periods of only decades and are reversible if anthropogenic nutrient loading can be controlled. In the 1960s this was a serious issue, exemplified by the hyper-eutrophic condition of Lake Erie.
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waterontheweb.org/under/lakeecology/16_trophicstatus.ht...
waterontheweb.org/under/lakeecology/16_trophicstatus.html
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Lake filling results both from production that occurs in the lake, which may increase with eutrophication, and from organic and inorganic material deposited from outside the lake, which has no relationship with lake eutrophication.
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des.nh.gov/organization/commissioner/pip/factsheets/bb/...
des.nh.gov/organization/commissioner/pip/factsheets/bb/documents/bb-3.pdf
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HUMAN CAUSES of LAKE TROPHIC STATES; As soon as people move next to a lake or into its watershed, we have the potential to accelerate the process of eutrophication. We may contribute nutrients through wastewater disposal, agricultural practices, and urban runoff from yards, golf courses, shopping centers, roads...
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plants.ifas.ufl.edu/guide/trophstate.html
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In its 1969 report to the United States and Canada, the International Joint Commission (IJC) concluded that phosphorus enrichment had accelerated the eutrophication of Lake Ontario and had resulted in a condition of advanced eutrophication in the western basin of Lake Erie.
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www.ijc.org/php/publications/html/modsum/fitzpatrick.ht...
www.ijc.org/php/publications/html/modsum/fitzpatrick.html
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Damages as Examples for Disruptions of the Balance of Ecosystems: The Eutrophication of a Lake; ... A large proportion of the newly produced oxygen enters the atmosphere, since photosynthetically active species occur mainly in the epilimnion and there only very close to the lake surface and since during summer,
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www.biologie.uni-hamburg.de/b-online/e55/55.htm
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3). Strong inflow events of up to 25.5 m3/s occur frequently after periods of low water level, for example in April ... - Except for special cases there was little parameter variation within and between the three blocks. A eutrophication model for the lake may assume well-mixed conditions within each block.
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www.iahr.org/membersonly/grazproceedings99/doc/000/000/...
www.iahr.org/membersonly/grazproceedings99/doc/000/000/445.htm
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Artificial Department Eutrophication of Zoology, AND of Lake Washington' of Washington, Seattle W. 0. rubescens has frequently been reported in abundance during the winter, although it may occur in great quantity during the summer in the hypolimnion of some lakes (e.g., Findenegg 1943, Thomas and Msrki 1949). Nevertheless,
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www.aslo.org/lo/toc/vol_1/issue_1/0047.pdf
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