Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Toxicity of Ammonia to Early Life Stages of the Green Sunfish (Lepomis cyanellus).
Author McCormick, J. H. ; Broderius, S. J. ; Fiandt, J. T. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1984
Report Number EPA/600/J-84/155;
Stock Number PB85-148385
Additional Subjects Ammonia ; Toxicity ; Fresh water fishes ; Exposure ; Nitrogen organic compounds ; Concentration(Composition) ; pH ; Embryos ; Growth ; Reprints ; Lepomis cyanellus ; Green sunfish
Library Call Number Additional Info Location Last
NTIS  PB85-148385 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 18p
Toxicity of ammonia to early life stages of green sunfish Lepomis cyanellus was studied. One chronic and four acute exposure studies were conducted. During the chronic study green sunfish were exposed to a series of ammonia concentrations from the blastula stage through 40 days post-hatching. During the acute studies, juvenile green sunfish were exposed at four pH levels, 6.6, 7.2, 7.7 and 8.7, to derive 3-, 6-, 12-, 24-, 48-, 72-, and 96-h LC50 and EC50 concentrations of un-ionized (NH3) and total ammonia (NH3(-N). Pre-hatching embryological stages were found to be the most resistant stages studied.