| Main Title |
Effects of Acute Radiation on Reproductive Success of the Polychaete Worm 'Neanthes arenaceodentata'. |
| Author |
Harrison, F. L. ;
Anderson, S. L. ;
|
| CORP Author |
Lawrence Livermore National Lab., CA. Environmental Sciences Div.;Office of Radiation Programs, Washington, DC. |
| Publisher |
Dec 88 |
| Year Published |
1988 |
| Report Number |
EPA/520/1-88/003; |
| Stock Number |
PB89-162085 |
| Additional Subjects |
Worms ;
Gamma rays ;
Radiation effects ;
Fertility ;
Tables(Data) ;
Embryos ;
Marine biology ;
Annelida ;
Invertebrates ;
Reproduction(Biology) ;
Radioecology ;
Dose-response relationships ;
Neanthes arenaceodentata
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-162085 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
58p |
| Abstract |
Laboratory populations of the polychaete worm Neanthes arenaceodentata were exposed to acute doses of external gamma radiation to determine effects on reproduction. Groups of mated pairs received either no radiation (controls) or 0.5, 1.0, 2.0, 5.0 10 or 50 Gy. The doses were delivered at the time when oocytes were visible in the females and at a rate of 5 Gy/min. The broods from the mated pairs were sacrificed before hatching occurred, and information was obtained on brood size, on the number of normal and abnormal embryos, and the number of embryos that were living, dying, and dead. An important effect of acute irradiation was increased mortality of the embryos. Except for those mated pairs that received 10 or 50 Gy, there was no evidence for gamete loss or for reduced fertilization success; the number of embryos in the brood did not decrease with increased dosage. The results on embryo abnormality and mortality indicate that lethal mutations were most likely induced in the germ cells and that these affected survival of the early life stages. |
| Supplementary Notes |
Sponsored by Office of Radiation Programs, Washington, DC. |
| NTIS Title Notes |
Final rept.. |
| Category Codes |
57V; 57F; 57Z; 47D |
| NTIS Prices |
PC A04 |
| Primary Description |
200/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
911828044 |
| Origin |
NTIS |
| Type |
CAT |
