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Abstract
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Article Information:
Level of Heavy Metals in Freshwater Crab (Cardisoma guahumi) Obtained from Ahmadu Bello University Reservoir, Zaria Nigeria
D.S. Abolude, D.W. Avong and O.A. Davies
Corresponding Author: Davies Onome
Submitted: 2009 July, 27
Accepted: 2009 August, 19
Published: |
Abstract:
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The levels of Calcium (Ca), Potassium (K), Manganese (Mn), Iron (Fe), Lead (Pb), Zinc (Zn),
Bromine (Br), Arsenic (A s), Rubidium (Rb), Strontium (Sr), Vanadium (V), Niobium (Nb) and Zirconium (Zr)
in crabs Cardisoma guahumi has been evaluated. The crabs were collected in the Ahmadu Bello University
Reservoir and analysed for the above metals using Energy Dispersive X-Ray Fluorescence (EDXRF)
Technique. The data indicated variable levels of some of the metals in the crab samples. Enrichments of some
of the metals were higher than others, in some stations and on the different body components. The most
concentrated was calcium (46500±16300ppm) while the least concentration was obtained in Niobium
(29.3ppm). Correlation coefficient between the various stations and betw een the various body components
shows significant differences (P#0.05). Concentrations of some metals in Ahmadu Bello University Reservoir,
Zaria were found to be higher than the WHO recommended safe reference values. The high level of some of
the metals in the crab C. guahumi suggested that the crab can be used as bio-indicator.
Key words: Concentration, freshwater crab, heavy metals, man-made reservoir, , ,
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Cite this Reference:
D.S. Abolude, D.W. Avong and O.A. Davies, . Level of Heavy Metals in Freshwater Crab (Cardisoma guahumi) Obtained from Ahmadu Bello University Reservoir, Zaria Nigeria. International Journal of Animal and Veterinary Advances, (2): Page No: 54-58.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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