Response of Phytoplankton Communities to Acidification and Recovery in Killarney Park and the Experimental Lakes Area, Ontario

Bibliographic Data

ID10887105
AuthorsDavid L Findlay (Fisheries and Oceans Canada, corresponding author)
Year2003
Volume32
Issue3
Pages190-195
Publication date2003-05-01
Open AccessNo
TypeARTICLE
VenueAMBIO (JOURNAL)
Journal identifiersISSN: 0044-7447 • E-ISSN: 1654-7209
PublisherRoyal Swedish Academy of Sciences (PUBLISHER • SE)
DOI10.1579/0044-7447-32.3.190
PMID12839194
OpenAlexW2176660394
LanguageEN
Citations received6
References cited2

It has been widely speculated that controls of SO2 emissions would stimulate recovery of acidified freshwater lakes in Canada, the United States and Europe. Phytoplankton communities from 22 lakes near Killarney Park Ontario, covering a pH range from 4.5-7.7, were studied from 1998-2000 and compared to data from experimentally acidified (pH decreased 6.7 to 4.5) and recovered (pH increased to 6.0) Lake 302 South at the Experimental Lakes Area (ELA), northwestern Ontario to assess recovery from acidification. Based on historical data, pH levels have rebounded to above 6.0 in several lakes in the Killarney area that were previously acidified to pH 5.0-5.5. Phytoplankton biomass was not correlated to pH, but there was a highly significant relationship between species richness and pH. Recovery trajectories were observed in a subset of 6 lakes, combining species diversity data from the present study with historical data. Correspondence analysis indicated that several of the lakes that experienced increased pH have shifted towards phytoplankton assemblages typical of circumneutral environments

Archaeology · Biology · Geography · National park · Nutrient · Phytoplankton · Aquatic Ecosystems and Phytoplankton Dynamics · Aquatic Invertebrate Ecology and Behavior · Ecology · Environmental Science · Environmental Toxicology and Ecotoxicology · Geology · Oceanography

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