Biokinetic behavior of Tc in the red abalone, Haliotis rufescens: a reassessment. [/sup 95m/Tc]
The biokinetic behavior of /sup 95m/Tc in the red abalone, Haliotis rufescens, is reviewed in light of recent experiments on other molluscs. Additional experimentation has confirmed that, when uptake is directly from labeled seawater, abalone exhibit concentration factors in excess of 100. Bivalve molluscs under the same experimental conditions have concentration factors that do not exceed 2. However, uptake and loss kinetics cannot be described by a single compartment model as had been previously advanced. Assimilation of /sup 95m/Tc by the abalone following a single feeding of labeled macroalga, Nereocystis pyrifera, is high (approx. 45%) and loss kinetics are similar to those observed following direct uptake from seawater.
- Research Organization:
- Oregon State Univ., Newport (USA). Marine Science Center
- DOE Contract Number:
- AT06-79EV10251
- OSTI ID:
- 6251496
- Report Number(s):
- DOE/EV/10251-4; ON: DE81030324
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BIOLOGICAL ACCUMULATION
CLEARANCE
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
EXCRETION
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INTAKE
INTERMEDIATE MASS NUCLEI
INVERTEBRATES
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MOLLUSCS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
RADIOISOTOPES
RADIONUCLIDE KINETICS
SEAWATER
SINGLE INTAKE
TECHNETIUM 95
TECHNETIUM ISOTOPES
UPTAKE
WATER