Record Display for the EPA National Library Catalog


Main Title Toxicant-Induced Mortality in Models of 'Daphnia' Populations.
Author Hallam, T. G. ; Lassiter, R. R. ; Li, J. ; McKinney., W. ;
CORP Author Environmental Research Lab., Athens, GA. Office of Research and Development. ;Tennessee Univ., Knoxville. Dept. of Mathematics.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/152;
Stock Number PB91-109900
Additional Subjects Mathematical models ; Mortality ; Daphnia ; Toxicology ; Chemical compounds ; Population(Statistics) ; Chemical properties ; Exposure ; Reprints ; Toxic substances ; Water pollution effects(Animals) ; Population dynamics ; Aquatic ecosystems ; Risk assessment ; Biological effects
Library Call Number Additional Info Location Last
NTIS  PB91-109900 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
A method to determine the mortality effects of a hydrophobic chemical on a population is proposed. The ecotoxicological protocol is based on individual organism response and is derived from the static theory of 'survival of the fattest.' This study, focusing on effects of mortality and the effects of toxicant stress on population succession, examines the static assessment survival of the fattest in a dynamic population model. A premise in this approach is that risk assessment should not be based solely on chemical properties of the toxicant and that the biology of the exposed organisms is an important factor in the determination of effects.