| Main Title |
Automated Device (AGARS) for Studying Avoidance of Pollutant Gradients by Aquatic Organisms. |
| Author |
Cripe, C. R. ;
|
| CORP Author |
University of West Florida, Pensacola. Dept. of Biology.;Environmental Research Lab., Gulf Breeze, FL. |
| Year Published |
1978 |
| Report Number |
EPA-R-804458; EPA/600/J-79/003; |
| Stock Number |
PB-294 863 |
| Additional Subjects |
Marine fishes ;
Aquatic animals ;
Water pollution ;
Toxicity ;
Chlorine ;
Avoidance responses ;
Animal behavior ;
Monitoring ;
Exposure ;
Concentration(Composition) ;
Near infrared radiation ;
Bioassay ;
Canada ;
Water analysis ;
Chemical analysis ;
Laboratory equipment ;
Reprints ;
Aquatic gradient avoidance response system ;
Water pollution detection ;
GAARS system
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-294 863 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
Most apparatus designed to detect avoidance of pollutants by aquatic organisms require visual observations of test organisms in steep pollutant gradients. GAARS (Aquatic Gradient Avoidance Response System) was developed to eliminate these limitations. This system allows animals to choose between one uncontaminated zone and three increasingly toxic zones in a gradient trough that is monitored for extended time periods by infrared light sources, sensors, and a microprocessor. Data are accumulated hourly and processed by a paper tape reader/calculator/plotter system that records the time test animals remain in each zone and compares behavior before and during test exposures. Initial tests indicate that pinfish (Lagodon rhomboides) tested in the apparatus will avoid chlorine-produced oxidants at concentrations of 0.02-0.04 mg/L. |
| Supplementary Notes |
Pub. in Jnl. of the Fisheries Research Board of Canada, v36 n1 p11-16 1979. |
| NTIS Title Notes |
Final rept.. |
| Title Annotations |
Reprint: An Automated Device (AGARS) for Studying Avoidance of Pollutant Gradients by Aquatic Organisms. |
| PUB Date Free Form |
5 Apr 78 |
| Category Codes |
8A; 6T; 13B; 14B; 47D; 57Y; 68D; 99A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323760578 |
| Origin |
NTIS |
| Type |
CAT |
