| Main Title |
Comparative Responses of Speckled Dace and Cutthroat Trout to Air-Supersaturated Water. |
| Author |
Nebeker, Alan V. ;
Hauck, A. Kent ;
Baker, Faye D. ;
Weitz, Stephen L. ;
|
| CORP Author |
National Heart, Lung, and Blood Inst., Bethesda, MD. |
| Year Published |
1981 |
| Report Number |
EPA-600/J-80-351; |
| Stock Number |
PB82-128307 |
| Additional Subjects |
Supersaturation ;
Air ;
Fishes ;
Water pollution ;
Lethal dosage ;
Concentration(Composition) ;
Responses ;
Comparison ;
Reprints ;
Rhinichtys asculus ;
Salmo clarki ;
Water pollution effects(Animals) ;
Dace
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB82-128307 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
Speckled dace (Rhinichtys asculus) are more tolerant of air-supersaturated water than adult or juvenile cutthroat trout (Salmo clarki). Speckled dace were tested in concentrations from 110 to 142% saturation and had a 96-hour median lethal concentration (LC50) of 140%, a 7-day LC50 of 137% and 2-week LC50's of 129 and 131% saturation. The estimated mean threshold concentration, based on time to 50% death (TM50), was 123% saturation. The speckled dace also exhibited consistent external signs of gas bubble disease. Cutthroat trout were tested from 111 to 130% saturation and had 96-hour LC50's of 119 and 120% (adults) and 119 and 119% (juveniles) saturation. Estimated mean threshold concentrations (from TM50 values) were 117% (adults) and 114% (juveniles) saturation. Signs of gas bubble disease exhibited by the cutthroat trout were similar to those seen with other salmonids examined in earlier studies. |
