Published July 2008 | Version v1
Journal article Metadata-only

Influence of salinity on uptake rate and bioaccumulation of /sup 137/Cs in the oyster crassostrea glomerata

Creators

  • 1. Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan). Isotope Application Div.
  • 2. University of Karachi (Pakistan). Dept. of Excellence in Marine Life
  • 3. Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan). Health Physics Div.

Description

This paper describes results of experiment on bioaccumulation and uptake rate of radiocesium /sup 137/Cs from dissolved phase in the flesh of the Oysters (Crassostrea glomerata) collected off Karachi coast. A radiotracer experiment was conducted under laboratory conditions to determine the uptake rate and bioaccumulation of /sup 137/Cs from dissolved phase in the flesh of the Oyster. Oysters (size: 6-7 cm) were subjected to radiocesium activity of 24 Kilobecquerel per liter (kBq L/sup -1/) under three salinity Ievels (25, 30 and 35 ppt). The uptake of /sup 137/Cs was monitored for a period of seven days. The results showed that bioaccumulation and uptake of /sup 137/Cs in oysters were considerably dependent of salinity levels. Higher bioaccumulation factors and uptake rates were found at low salinity levels. (author)

Additional details

Publishing Information

Journal Title
Nucleus (Islamabad)
Journal Volume
45
Journal Issue
3-4
Journal Page Range
p. 119-124
ISSN
0029-5698

INIS

Country of Publication
Pakistan
Country of Input or Organization
Pakistan
INIS RN
40022860
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Descriptors DEI
BIOLOGICAL ACCUMULATION; CESIUM 137; HEAVY METALS; OYSTERS; RADIOECOLOGICAL CONCENTRATION; SALINITY; UPTAKE
Descriptors DEC
ANIMALS; AQUATIC ORGANISMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; ECOLOGICAL CONCENTRATION; ELEMENTS; INTERMEDIATE MASS NUCLEI; INVERTEBRATES; ISOTOPES; METALS; MOLLUSCS; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES