Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Species Composition of Fish Communities in Northern Wisconsin Lakes: Relation to pH.
Author Hendrey, G. R. ; Wiener, J. G. ; Rago, P. J. ; Eilers., J. M. ;
CORP Author National Fisheries Research Center, La Crosse, WI.;Environmental Research Lab.-Duluth, MN.
Publisher 1989
Year Published 1989
Report Number EPA-R-809412; EPA/600/D-89/259;
Stock Number PB90-132457
Additional Subjects Acidification ; Freshwater fishes ; Lakes ; Wisconsin ; Precipitation(Meteorology) ; Losses ; Populations ; Mortality ; pH ; Rainfall ; Watersheds ; Water analysis ; Calcite ; Saturation ; Ecosystems
Library Call Number Additional Info Location Last
NTIS  PB90-132457 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/15/1990
Collation 18p
Recent investigations of surface water and precipitation chemistry have aroused considerable concern about the potential effects of acidic precipitation on aquatic ecosystems in the north-central United States. The mean weighted pH of precipitation at two monitoring stations in north-central Wisconsin during 1980 was 4.45 and 4.63 (7), or about 10-14 times more acidic than 'normal' rainfall, which has a theoretical pH of 5.6 (8). Many watersheds in northern Wisconsin have acid soils with low buffering capacity (9). Consequently, the water of most lakes in these watersheds is very soft and slightly acidic. Analyses of 275 northern Wisconsin lakes by Eilers et al. (10) during 1979 indicated that 36% of the lakes were susceptible and an additional 50% were potentially susceptible to acidification from acid precipitation.