| Main Title |
Relationships among Observed Metal Concentrations, Criteria, and Benthic Community Structural Responses in 15 Streams. |
| Author |
LaPoint, T. W. ;
Melancon, S. M. ;
Morris, M. K. ;
|
| CORP Author |
Environmental Monitoring Systems Lab., Las Vegas, NV. |
| Year Published |
1984 |
| Report Number |
EPA/600/J-84/287; |
| Stock Number |
PB85-198265 |
| Additional Subjects |
Metals ;
Aquatic animals ;
Toxicity ;
Stream pollution ;
Daphnia ;
Crustacea ;
Age determination ;
Populations ;
Reprints ;
Ecosystems ;
Daphnia magna ;
Pimephales promelas ;
Salmo
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB85-198265 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
13p |
| Abstract |
Water quality criteria for toxic substances published by the U.S. Environmental Protection Agency (EPA) are established to protect aquatic life and human health. An aquatic life criterion specifies the concentration of metal, pesticide, or other toxicant below which ecosystem integrity is maintained. However, most criteria are based on toxicity evidence from only a few sensitive aquatic species, such as Daphnia magna, Pimephales promelas, and Salmo spp. Single-species tests usually use organisms of uniform age and size and therefore lack the heterogeneous responses of a natural population. Other factors that affect the natural ecosystem balance are not necessarily reproduced in the laboratory, such as nutrition, physiological interaction, substrate, current, and light. |
| Supplementary Notes |
Pub. in Jnl. of the Water Pollution Control Federation, v56 n9 p1030-1038 Sep 84. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Relationships among Observed Metal Concentrations, Criteria, and Benthic Community Structural Responses in 15 Streams. |
| PUB Date Free Form |
1984 |
| Category Codes |
6C; 6T; 68D; 57Z; 57Y |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/07 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
519925421 |
| Origin |
NTIS |
| Type |
CAT |
