Publication Abstract

Title
A comparison of the effects of long-term b- and g- irradiation on the reproductive performance of a marine invertebrate Ophryotrocha diadema (Polychaeta, Dorvilleidae)
Publication Abstract

A comparison of the effects of long-term b- and g- irradiation on the reproductive performance of a marine invertebrate Ophryotrocha diadema (Polychaeta, Dorvilleidae)

J.F. Knowles and L.N. Greenwood

The effects of chronic exposure to equivalent absorbed dose rates of β radiation from tritiated water, or γ radiation from an external 137CS source, on the reproductive performance of the polychaete Ophryotrocha diadema have been compared. At 7.3 mGy h-1 both β- and γ-radiation caused similar, significant reductions in numbers of larvae compared with controls. The γ -irradiated worms had significant reductions in egg production but not in survival of eggs to larvae while β-irradiated worms had significant reductions in survival of eggs to larvae but not in egg production. There was no evidence for the high radiosensitivity to β-radiation reported for some other invertebrates.

Reference:

J.F. Knowles and L.N. Greenwood, 1996. A comparison of the effects of long-term b- and g- irradiation on the reproductive performance of a marine invertebrate Ophryotrocha diadema (Polychaeta, Dorvilleidae). Journal of Environmental Radioactivity, 34(1): 1-7

Publication Internet Address of the Data
Publication Authors
J.F. Knowles* and L.N. Greenwood*
Publication Date
January 1996
Publication Reference
Journal of Environmental Radioactivity, 34(1): 1-7
Publication DOI: https://doi.org/