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Eutrophication of lakes cannot be controlled by reducing nitrogen input: Results of a 37-year whole-ecosystem experiment
Lake 227, a small lake in the Precambrian Shield at the Experimental Lakes Area (ELA), has been fertilized for 37 years with constant annual inputs of phosphorus and decreasing inputs of nitrogen toExpand
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Effects of lake size, water clarity, and climatic variability on mixing depths in Canadian Shield lakes
The depth of the summer mixed layer (E d ) of 21 Canadian Shield lakes in northwestern Ontario was examined in relation to lake size (surface area, A 0 ) and water clarity (extinction coefficient, KExpand
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Climatic influences on algal populations of boreal forest lakes in the Experimental Lakes Area
We examined long-term phytoplankton data records for four oligotrophic boreal lakes situated in the Experimental Lakes Area (ELA), western Ontario, for responses to climatic change. ELA experienced aExpand
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Effects of Lake Size on Phytoplankton Nutrient Status
Phytoplankton nutrient status measurements (C/P, C/N, C/chlorophyll, N/P, alkaline phosphatase activity, and N debt) were measured for 6 yr in seven remote Canadian Shield lakes. Lakes Nipigon andExpand
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Divergent impacts of experimental lake-level drawdown on planktonic and benthic plant communities in a boreal forest lake
Water-surface elevation in lake 226 (L226) of the Experimental Lakes Area in northwestern Ontario, Canada, was lowered experimentally by 2-3 m during each of three successive winters, and increasedExpand
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Long-term changes in climate, streamflow, and nutrient budgets for first-order catchments at the Experimental Lakes Area (Ontario, Canada)
We analyzed 36 years of records for climate, hydrology, and the chemistry of precipitation and runoff from the Lake 239 (Rawson Lake) catchment at the Experimental Lakes Area (Ontario, Canada). NoExpand
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Responses of phytoplankton and epilithon during acidification and early recovery of a lake
1. Lake 302S in the Experimental Lakes Area of Canada was acidified from pH 6.7 (1981) to 5.1 (1986). The pH was further reduced to 4.5 in 1987 and held at that level until 1991. From 1992 to 1995,Expand
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Aquaculture impacts on the algal and bacterial communities in a small boreal forest lake.
A whole-lake experiment to examine the impacts of aquaculture on a freshwater ecosystem was conducted at the Experimental Lakes Area in northwestern Ontario, Canada. From 2003 to 2006, a 10 tonneExpand
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Effects on phytoplankton of nutrients added in conjunction with acidification
1. The effects of nitric acidification on phytoplankton were studied in a small, eperimentally manipulated, oligotrophic lake (L302N) in the Eperimental Lakes Area of Canada. The focus was alteredExpand
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Dynamics of a Boreal Lake Ecosystem during a Long-Term Manipulation of Top Predators
We assessed the long-term (16 years) effects of introducing piscivores (northern pike) into a small, boreal lake (Lake 221, Experimental Lakes Area) containing abundant populations of twoExpand
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