Fecundity of a Gambusia affinis affinis population exposed to chronic environmental radiation
Journal Article
·
· Radiat. Res.; (United States)
The fecundity of Gambusia affinis affinis, the common mosquito fish, that has inhabited a lake contaminated with radioactive waste for over 100 generations, was compared with a control population. The calculated dose rate from the bottom sediments to the Gambusia population in this contaminated environment was 10.9 rads/day. A significantly larger brood size occurred in the irradiated than in the nonirradiated population, although significantly more dead embryos and abnormalities were observed in the irradiated broods. These results suggest that an increased fecundity is a means by which a natural population of organisms having a relatively short life cycle and producing a large number of progeny can adjust rapidly to an increased mortality caused by radiation. 21 references, 2 figures, 2 tables.
- Research Organization:
- Oak Ridge National Lab., TN
- OSTI ID:
- 6230460
- Journal Information:
- Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 37:1; ISSN RAREA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Aspects of fitness of a mosquitofish Gambusia affinis population exposed to chronic low-level environmental radiation
Effects of chronic low-level irradiation on Gambusia affinis. [White Oak Lake]
Response of mosquitofish (Gambusia affinis) populations to seasonally unpredictable perturbations
Journal Article
·
Thu Mar 31 23:00:00 EST 1977
· Radiat. Res.; (United States)
·
OSTI ID:7107186
Effects of chronic low-level irradiation on Gambusia affinis. [White Oak Lake]
Technical Report
·
Sun Dec 31 23:00:00 EST 1978
·
OSTI ID:5705918
Response of mosquitofish (Gambusia affinis) populations to seasonally unpredictable perturbations
Technical Report
·
Sun Jul 01 00:00:00 EDT 1990
·
OSTI ID:6507706
Related Subjects
560152* -- Radiation Effects on Animals-- Animals
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
CHRONIC EXPOSURE
CHRONIC IRRADIATION
CONTAMINATION
DATA
DOSES
EMBRYOS
EXPERIMENTAL DATA
FISHES
INFORMATION
IRRADIATION
LAKES
MATERIALS
MORTALITY
NUMERICAL DATA
POPULATION DYNAMICS
RADIATION DOSES
RADIATION EFFECTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SURFACE WATERS
VERTEBRATES
WASTES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
CHRONIC EXPOSURE
CHRONIC IRRADIATION
CONTAMINATION
DATA
DOSES
EMBRYOS
EXPERIMENTAL DATA
FISHES
INFORMATION
IRRADIATION
LAKES
MATERIALS
MORTALITY
NUMERICAL DATA
POPULATION DYNAMICS
RADIATION DOSES
RADIATION EFFECTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SURFACE WATERS
VERTEBRATES
WASTES