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RECORD NUMBER: 397 OF 635

OLS Field Name OLS Field Data
Main Title Microbiotic Ecoassay for Environmental Pollutants.
Author Gunne, H. B. ; Cole, R. A. ;
CORP Author Massachusetts Univ., Amherst. Water Resources Research Center.
Year Published 1972
Report Number Completion-72-5; OWRR-A-047-MASS; 04208,; A-047-MASS(2)
Stock Number PB-206 691
Additional Subjects ( Water pollution ; Ecology) ; ( Ecology ; Bioassay) ; Biomass ; Food chains ; Indicator species ; Aquatic animals ; Aquatic plants ; Insecticides ; Chemical compounds ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-206 691 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 20p
Abstract A technique is developed which offers both insights of field study and experimental control of the laboratory to measure at all trophic levels simultaneously the ecosystem response to biologically or chemically induced stress. Methods used by past investigators included model studies and studies of individual species as indices of environmental quality. Model studies fail to mirror dynamics in the natural habitat while studies of individual species provide only limited insight into population dynamics of the intact ecosystem. These methods make adaptation and extrapolation to field conditions extremely tendentious. This report describes observations of exogeneous chemical stress and the response of various aquatic plants and fish to various stresses. The initial stress tested relates to organophosphate insecticide, Diazinon, known for high selectivity for soil micoorganisms. Though the results of this study are preliminary and fragmentary, statistical analysis indicates a potential for computer simulated ecoassay. The novel use of an entire biota as a bioassay system rather than the classical resort to 'universal indicator species' is significant.
NTIS Title Notes Completion rept..
PUB Date Free Form 1972,
Category Codes 6P; 57H
NTIS Prices PC A02/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326525586
Origin NTIS
Type CAT