OLS : Record


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
Subjects Worms; Gamma rays; Radiation effects; Fertility; Tables(Data); Embryos; Marine biology; Annelida; Invertebrates; Reproduction(Biology); Radioecology; Dose-response relationships; Neanthes arenaceodentata
Library   Call Number Additional Info Location Date Modified
NTIS PB89-162085 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1989
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
Control Number 911828044
Cataloging Source NTIS/MT
Origin NTIS
Type CAT