INFLUENCE OF SALINITY ON UPTAKE RATE AND BIOACCUMULATION OF 137Cs IN THE OYSTER CRASSOSTREA GLOMERATA

Authors

  • A. Mashiatullah Isotope Application Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • R. M. Qureshi Isotope Application Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • S. Khan Isotope Application Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • J. Abid Isotope Application Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • T. Javed Isotope Application Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • F. Chughtai Centre of Excellence in Marine Biology, University of Karachi, Pakistan
  • P. Akhtar Health Physic Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan
  • A. Jabbar Health Physic Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan

Abstract

This paper describes results of experiment on bioaccumulation and uptake rate of radiocesium 137Cs 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 137Cs from dissolved phase in the flesh of the Oysters. Oysters (size: 6–7 cm) were subjected to radiocesium activity of 24 Kilobecquerel per liter (kBq L-1) under three salinity levels (25, 30 and 35 ppt). The uptake of 137Cs was monitored for a period of seven days. The results showed that bioaccumulation and uptake of 137Cs in oysters were considerably dependent of salinity levels. Higher bioaccumulation factors and uptake rates were found at low salinity levels.

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Published

01-07-2020

How to Cite

[1]
A. Mashiatullah, “INFLUENCE OF SALINITY ON UPTAKE RATE AND BIOACCUMULATION OF 137Cs IN THE OYSTER CRASSOSTREA GLOMERATA”, The Nucleus, vol. 45, no. 3-4, pp. 119–124, Jul. 2020.

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