| Main Title |
Experimental Ponds for Evaluating Bioassay Predictions. |
| Author |
deNoyelles, F. ;
Kettle, W. D. ;
|
| CORP Author |
Kansas Univ., Lawrence.;Corvallis Environmental Research Lab., OR. |
| Year Published |
1985 |
| Report Number |
EPA/600/D-87/100; |
| Stock Number |
PB87-176749 |
| Additional Subjects |
Bioassay ;
Ponds ;
Phytoplankton ;
Herbicides ;
Accuracy ;
Stress(Physiology) ;
Chlorine organic compounds ;
Nitrogen heterocyclic compounds ;
Exposure ;
Reprints ;
Atrazine
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB87-176749 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
Experimental pond studies were used to demonstrate a means of assessing the accuracy of laboratory and in situ bioassays predicting the effects of chemical stress on phytoplankton. A short-term batch bioassay using changing carbon uptake in photosynthesis predicted an immediate (first 24h) effect of the herbicide atrazine on the phytoplankton communities in experimental ponds. After addition of atrazine to the ponds, the same decreases in carbon uptake were observed, but the appearance of resistant species that soon occurred could not be predicted with the short-term exposure used in such a bioassay. From another experimental pond study a longer-term continuous flow bioassay using changing species composition predicted an effect of increased nutrient and altered pH conditions over a 20-day exposure. |
| Supplementary Notes |
Pub. in Special Technical Testing Publication 865, p91-103 1985. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Experimental Ponds for Evaluating Bioassay Predictions. |
| PUB Date Free Form |
c1985 |
| Category Codes |
57C; 57P; 57H |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
718320929 |
| Origin |
NTIS |
| Type |
CAT |
