Record Display for the EPA National Library Catalog


Main Title Water Chemistry and Fish Community Responses to Episodic Stream Acidification in Pennsylvania, USA.
Author Carline, R. F. ; DeWalle, D. R. ; Sharpe, W. E. ; Dempsey, B. A. ; Gagen, C. J. ;
CORP Author Pennsylvania Cooperative Fish and Wildlife Research Unit, University Park. ;Pennsylvania State Univ., University Park.;Corvallis Environmental Research Lab., OR.
Publisher 1992
Year Published 1992
Report Number EPA-R-814566-01-2; EPA/600/J-93/459;
Stock Number PB94-113024
Additional Subjects Water chemistry ; Acidification ; Fresh water fishes ; Storm runoff ; pH ; Streams ; Aluminum ; Acidity ; Environmental factors ; Pennsylvania ; Reprints ; Acid episodes ; Biological response
Library Call Number Additional Info Location Last
NTIS  PB94-113024 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
Five streams were studied on the Northern Appalachian Plateau of Pennsylvania from October 1988 through June 1989 to determine chemical changes that occur during episodic storm run-off and the responses of fish to these events. These second-order streams flowed through undisturbed, wooded, sandstone bedrock catchments with surface areas ranging from 500 to 1000 hectares. Median pH of precipitations was about 4.2, and among streams it ranged from 5.0 to 6.2. During storm events, pH declined by as much as 1.2 units and peak concentrations of total monomeric Al ranged from <0.01 to 0.75 mg/l. Mortality of brook trout and sculpins in in situ bioassays ranged from 0 to about 80% among streams during acidic episodes and was positively related to concentrations of total dissolved Al. (Copyright (c) 1992 Elsevier Science Publishers.)