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Four species of fish and one species of shrimp have been
collected from Dammam - Qatif Coast, Arabian Gulf, SA during
winter and summer 2012. The highest concentrations of
physical and chemical characteristics in water and sediment
were obtained at sites 5, 6 and 7 as a result of waste water
drainage. The average concentration of heavy metals (Cu, Zn,
Pb, Cd and As) in sediment (0.33, 0.42, 0.25, 0.16 and
0.031ppm) were higher than that recorded in water (0.23,
0.35, 0.0.12, 0.09 and 0.017 ppm), respectively during
summer. Sites 6 and 7 showed the highest values of heavy
metals, while sites 1, 2 and 3 recorded the lowest
concentrations. Rhbdosargus haffara and Penaeus semisulcatus
recorded the highest concentrations of Cu, Pb, Cd and As
(3.07, 0.92, 0.79 and 0.59), (2.66, 0.77, 0.65 and 1.67) ppm
wet weight, respectively at site 7. Arsenic values in
Penaeus semisulcatus increased at sites 5, 6 and 7. The
bioaccumulation factor of heavy metals by fish and shrimp
were duplicated 50-208 folds referring to water and sediment
values.
Keywords:
water, sediment,
fish, prawn, heavy metals, Arabian Gulf.
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