Effects of ionizing radiation on aquatic organisms and ecosystems
Description
A panel of experts in November 1971 specifically considered the effects of ionizing radiation on aquatic organisms and ecosystems and formulated detailed suggestions for research in the area. A further panel meeting took place in April 1974. The results of the work are presented in this report which is divided into 3 chapters in the first chapter the concentrations of natural and artificial radionuclides in aquatic environments and the radiation dose rates received by aquatic organisms are discussed. In particular, simple dosimetry models for phytoplankton, zooplankton, mollusca, crustacea and fish are presented which permit the estimation of the dose rates from incorporated radionuclides and from radionuclides in the external environment. In the second chapter the somatic and genetic effects of ionizing radiation on aquatic organisms are reviewed. Somatic effects are discussed separately as effects due to short-term (acute) exposure to near-lethal doses of radiation. Great attention is paid to the effects due to long-term (chronic) exposure at lower doses rates. Consideration is given to behaviour, repair mechanisms and metabolic stimulation after exposure, and also the influence of environmental factors on radiation effects. In the third chapter the potential effects of low-level irradiation on aquatic populations are considered. First, the possible consequences of somatic effects on egg and larval mortality, stock-recruitment, fecundity and ecosystem stability are discussed. Subsequently, the assessment of genetic effects as they relate to population genetics and increased mutation rates are considered
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Additional details
Publishing Information
- Publisher
- IAEA.
- Imprint Place
- Vienna
- ISBN
- 92-0-125076-2
- Imprint Pagination
- 131 p.
- Journal Issue
- no. 172
- Journal Series
- Technical reports series.
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 7278755
- Subject category
- S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Quality check status
- Yes
- Descriptors DEI
- AQUATIC ECOSYSTEMS; CONTAMINATION; CRUSTACEANS; DOSE RATES; DOSIMETRY; FALLOUT; FISHES; FRESH WATER; INTERNAL IRRADIATION; MATHEMATICAL MODELS; MOLLUSCS; NATURAL RADIOACTIVITY; PLANKTON; RADIOACTIVE WASTES; RADIOECOLOGICAL CONCENTRATION; RADIOISOTOPES; SEAWATER; TABLES;
- Descriptors DEC
- ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; ECOLOGICAL CONCENTRATION; ECOSYSTEMS; HYDROGEN COMPOUNDS; INFORMATION; INVERTEBRATES; IRRADIATION; ISOTOPES; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVITY; VERTEBRATES; WASTES; WATER;