| Main Title |
Effects of Methoxychlor on Aquatic Biota. |
| Author |
Mern, James W. ;
Eisel, Paul J. ;
|
| CORP Author |
Institute for Fisheries Research, Ann Arbor, Mich. |
| Year Published |
1973 |
| Report Number |
EPA-18050-DLO; 04553,; R3-73-046 |
| Stock Number |
PB-228 643 |
| Additional Subjects |
Methoxychlor ;
Pesticides ;
Aquatic animals ;
Toxic tolerances ;
Toxicity ;
Animal physiology ;
Reproduction(Biology) ;
Minnows ;
Perch ;
Crustaces ;
Fishes ;
Gammarus pseudolimnaeus ;
Orconectes virilis ;
Pimephales promelas ;
Perca flavescens ;
Water pollution effects(Animals)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-228 643 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
66p |
| Abstract |
Continuous-flow bioassays yielded 96-hour TL50 values for invertebrates ranging from 0.61 micrograms/liter for Gammarus pseudolimnaeus to 7.05 micrograms/liter for Orconectes virilis. Fathead minnows (Pimephales promelas) and yellow perch (Perca flavescens) had 96-hour TL50 values of 8.63 and 2.22 micrograms/liter respectively. Hatching of fathead minnow eggs was inhibited at all levels of exposure tested between 1.0 and 0.125 micrograms/liter. There was no spawing at 2 micrograms/liter. Growth of yellow perch was retarded at all levels tested between 5.0 and 0.625 micrograms/liter. All perch died at 10 micrograms/liter during the growth study. Perch which had been subjected to long-term exposure to 5 micrograms/liter of methoxychlor had an abnormally high oxygen demand when held in a respirometer with a water velocity of 0.6 foot per second. |
