| Main Title |
Effects of Atrazine on Periphyton Communities in Controlled Laboratory Ecosystems. |
| Author |
Hamala, J. A. ;
Kollig, H. P. ;
|
| CORP Author |
Technology Applications, Inc., Athens, GA.;Environmental Research Lab., Athens, GA. |
| Year Published |
1985 |
| Report Number |
EPA-68-03-2926; EPA/600/J-85/235; |
| Stock Number |
PB86-131976 |
| Additional Subjects |
Herbicides ;
Water pollution ;
Agricultural products ;
Algae ;
Farm crops ;
Ecosystems ;
Experimental design ;
Nutrients ;
Nitrogen organic compounds ;
Reprints ;
Path of pollutants ;
Water pollution effects(Plants) ;
Aatrex ;
Microcosms ;
Triazine/chloro-ethylamino-isopropylamino
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB86-131976 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
20p |
| Abstract |
An aquatic microcosm study was designed to evaluate the direct and indirect effects of a 14 day, 100 micrograms atrazine/L exposure on periphyton community functional and structural parameters and to determine the recovery rates of these parameters after removing the atrazine input. Direct and indirect effects were evidenced by an immediate and continual decrease in net productivity and by significantly reduced algal densities, decreased diversity, altered species composition, and reduced biomass accumulation. There were substantial differences in community recovery rates with net productivity returning to control value within 16 days while little recovery in community structural parameters occurred within the 21-day time period examined. (Copyright (c) 1985 Pergamon Press Ltd.) |
