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Main Title State Changes of Laboratory Microecosystems in Response to Chemicals from Three Structural Groups.
Author Yount, J. D. ; Shannon, L. J. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;Minnesota Univ.-Duluth. Dept. of Biology.
Year Published 1987
Report Number EPA/600/D-87/132;
Stock Number PB87-182705
Additional Subjects Plankton ; Ecology ; Lakes ; Toxicity ; Nutrients ; Alcohols ; Minnows ; Tolerances(Physiology) ; Mortality ; Amides ; Microecosystems
Library Call Number Additional Info Location Last
NTIS  PB87-182705 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 28p
Abstract Generic mixed-flask culture microecosystems derived from small lake and pond planktonic communities were used to evaluate the effects of selected alcohols, aniline derivatives, and aromatic amides on pH and dissolved oxygen: ecosystem-level state variables which reflect energy flow and nutrient cycling processes within the systems. Using changes in these variables as indicators of effect, the relative toxicity rankings of compounds within each group were determined and compared with the toxicity rankings established by fathead minnow acute toxicity.
Supplementary Notes Supersedes PB87-116638. Prepared in cooperation with Minnesota Univ.-Duluth. Dept. of Biology.
PUB Date Free Form Apr 87
Category Codes 68D; 48G; 57H
NTIS Prices PC A03/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 720519294
Origin NTIS
Type CAT