SEASONAL VARIATION OF HEAVY METAL CONCENTRATIONS IN GLOSSOGOBIUS GIURIS FROM THE SUNDARBANS MANGROVE SWAMPS OF BANGLADESH

Md. Rezaul  Haque; Md. Jasim Uddin  Ahmad; Md. Didarul Alam  Chowdhury; Md. Mujibor  Rahman

doi:10.53808/KUS.2006.7.1.0539-L

Authors

Md. Rezaul Haque Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Md. Jasim Uddin Ahmad Department of Chemistry, Jahangirnagar University, Savar 1342, Bangladesh
Md. Didarul Alam Chowdhury Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Ganakbari, Savar, Bangladesh
Md. Mujibor Rahman Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2006.7.1.0539-L

Keywords:

Heavy metal, Glossogobius giuris, bioaccumulation, Sundarbans, Mangrove forest, Bangladesh

Abstract

The concentration of Cu, Zn, Fe, Pb, Cd, Cr and Ni were determined in Glossogobius giuris, a bottom feeder Gobi fish, from the rivers and estuaries of the Sundarbans mangrove forest in the South West coastal region of Bangladesh. The concentration of Cu, Zn, Fe, Pb, Cd, Cr and Ni was found to vary seasonally from 0.523-5.64, 5.17-23.2, 12.68-119.79, 0.139-4.94, 0.023-0.279, 0.086-2.83 and 0.58-5.3 µg g^-1 the dried fish muscle respectively. Fe was the most abundant metal found in the muscle, while cadmium was present at a lower level. The concentrations of all the metals studied were below the permitted levels recommended for human consumption except the Ni. The causes of higher Ni values have been discussed.

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