INFLUENCE OF pH ON UPTAKE AND BIOACCUMULATION OF RADIOCESIUM ( 137Cs) IN THE GREEN MUSSELS PERNA VIRIDIS
Abstract
Radiotracer experiment was conducted to assess the influence of pH on uptake rate and bioaccumulation of 137Cs from dissolved phase in soft parts of green mussels (Perna viridis) collected from Karachi Coast, under controlled laboratory condition. Green mussels of size 5–7 cm were subjected to radiocesium activity of 24 KBq L-1 under three pH levels i.e., 7.5, 8 and 8.5. The uptake of 137Cs was monitored for a period of seven days. The results showed that uptake and bioaccumulation of 137Cs in mussels was dependent on pH levels. Higher bioaccumulation factors and uptake rates were found at pH 8.References
S.E. Sidall. Bull. Mar. Sci. 30 (1980) 858.
Z.G. Huang, S.Y. Lee, P.M.S. Mak, The
distribution and population structure of Perna
viridis (Bivalvia: Mytilacea) in Hong Kong. In
Morton BS, Dudgeon D, eds, Proceedings,
nd International Workshop on the
Malacofauna of Hong Kong and South
China, 1983. Hong Kong University Press,
Hong Kong, People’s Republic of China
(1985) p. 465.
H. Al-Mafda, M.A.R. Abdel-Moati and F.H. AlGimaly, Bull. Environ. Contam. Toxicol. 60
(1998) 245.
H.M. Chan, Asian Mar. Biol. 5 (1988) 89.
T. Prakash and K.S.J. Rao, Fresenius
Environ. Bull. 2 (1993) 509.
D. Cossa, Marine Environ. Res. 26 (1988)
D. Broman, L. Lindqvist and L. Lundbergh,
Environ. Pollut. 74 (1991) 227.
V. Andersen, A. Maage and P.J.
Johannessen, Bull. Environ. Contam.
Toxicol. 57 (1996) 589.
P. Szefer, A.A. Ali, A.A. Ba-Haroon, A.A.
Rajeh, J. Geldon and M. Nabrzyski, Environ.
Pollut. 106 (1999) 299.
E.D. Goldberg, Mar. Pollut. Bull. 6 (1975)
P. Calow, Heavy metals. In: Handbook of
Ecotoxicology, Vol. 2. Oxford Blackwell
Scientific Publications, London, (1994) 79.
B. Beliaeff, T.P. O’Connor, D.K. Daskalakif
and P.J. Smith, Am. Chem. Soc. 31 (1997)
G.G. Polikarpov, Reinhold. (1966) 314.
G. R Helz, S. A. Sinex, G. H. Setlock and A.
Y. Cantillo, Final Report to U.S.
Environmental Protection Agency, Grant No.
R805954, Univ. of Maryland, College Park,
Md. (1982) 202.
D. J. Rowan and J. B. Rasmussen, Can. J.
Fish Aquat. Sci. 51 (1994) 2388.
R.M. Qureshi, A. Mashiatullah, N.Yaqoob, P.
Akhtar, F. Chaghtai, A. Jabbar and M.
Warnau, Environ. Bioindi. 2 (2007) 1.
A. Mashiatullah, R.M. Qureshi, S. Khan, J.
Abid, F. Chughtai, P. Akhtar, A. Jabbar and
T. Javed, The Nucleus 45, Nos. 3-4 (2008)
S.N. Luoma, Sci. Total Environ. 28 (1983) 1.
A.V. Aarset and T. Aunaas, Mar. Biol. 107
(1990) 9.
J.D. Gray, T.L. King and R.L. Colura, The
Progressive Fish Culturist 53 (1991) 81.
W.P. Paulij, R.H. Bogaards and J.M.
Denuce, Mar. Biol. 107 (1990) 17.
P.G.C. Campbell, Metal speciation and
aquatic systems. New York: John Wiley &
Sons Ltd. (1995) 45.
M.H. Depledge and P.S. Rainbow, Comp.
Biochem. Physiol. 97C (1990) 1.
R. Blust, E. Kochelbert and M. Baillieul, Mar.
Ecol. Prog. Ser. 84 (1992) 245.
P. Bjerregaard and M.H. Depledge, Mar.
Biol. 119 (1994) 385.
P.S. Rainbow, Mar. Pollut. Bull. 31 (1995)
