Translator Disclaimer
1 May 2003 Response of Phytoplankton Communities to Acidification and Recovery in Killarney Park and the Experimental Lakes Area, Ontario
Author Affiliations +
Abstract
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.
and David L. Findlay "Response of Phytoplankton Communities to Acidification and Recovery in Killarney Park and the Experimental Lakes Area, Ontario," AMBIO: A Journal of the Human Environment 32(3), (1 May 2003). https://doi.org/10.1579/0044-7447(2003)032[0190:ROPCTA]2.0.CO;2
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top