Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Acute Toxicity of Ammonia to Fathead Minnows.
Author Thurston, R. V. ; Russo, R. C. ; Phillips, G. R. ;
CORP Author Montana State Univ., Bozeman. Fisheries Bioassay Lab.;Environmental Research Lab.-Duluth, MN.
Year Published 1983
Report Number EPA-R-803950; EPA-600/J-83-154;
Stock Number PB84-172451
Additional Subjects Toxicity ; Minnows ; Water pollution ; Ammonia ; Concentration(Composition) ; Mortality ; Dissolved gases ; Oxygen ; Tests ; Size determination ; Correlation ; Sources ; Reprints ; Pimephales promelas
Library Call Number Additional Info Location Last
NTIS  PB84-172451 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 10p
The acute toxicity of ammonia to fathead minnows Pimephales promelas was measured in 35, 96-hour, flow-through tests. The fish were from both wild and hatchery-reared stocks, and ranged in size from 0.1 to 2.3 g. The 96-hour median lethal concentrations (LC50) ranged from 0.75 to 3.4 mg/l un-ionized ammonia (34 to 108 mg/l total ammonia-nitrogen). The toxicity of ammonia decreased as temperature increased over the range 12 to 22 C. There was no significant relationship between ammonia toxicity and dissolved oxygen concentration, over the range of the latter from 3 to 9 mg/l. Toxicity was not related to the size or the source of test fish. (Copyright (c) American Fisheries Society 1983.)