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vol-18EFFECTS OF J~CALITY AND TISSUE TYPE ON HEAVY METAL LEVELS OF
SOME COMMERCIAL FISHES FROM Al.EXANDRIA-EGYPl’.
K.S. GHAZALY*, M.M. El-MOFTV**, S 1. ATTIA**,
* Department of Natural Hlstory, Faculty of Education,
Alexandria University: ** De~artm~nt of Zoology, Faculty of science, Alexandria
Un1vers1ty.
* Present address: Biolog¥ Dept., Centre of Sci. & Math.
B.O.Box 1~70, Taif, Saud1 Arabia.
ABSTRACT
Concentrations of 4 metals (Cu, Cd, Pb and Hg) were
detenmined in 2 freshwater fishes (Clari. l.zer. and Tlt.,l.
nllotlce) and 2 marine water fishes (SpBI’UB …..t. and
Tll.,i. zillll>. The freshwater fishes were collected from
3 localities: Rakta Co., Abu·Qu;r Fertilizer Co., General
channel. The marine water fishes were collected from 4
localities: El-Temsah Shipping Co., Abu-Quir beach, It-Max
beach and Anfoushy beach. Water, in which ftsh•• ltve, wa.
analysed for these metals.
Metal levels in the 4 fish spec!es were affected by the
locality. Higher metal concentrations were found fn final
waste water and fishes taken from the vicinity of
industrial effluent dfscharge sites (Rakta Co., Abu-Qulr
Fertilizer Co., and El-Tem8ah Shipping Co.). Water and
fishes collected from Anfoushy beach had the lowest Metal
levels. The type of the tissue analysed showed dtfferent
levels of metal concentration. Elevated concentrations of
the test metals were noted in the gills and liver,.nd
leaser amounts were accumulated in kidneys, ileum, skeleton
and muscles. The high levels of metal input to the
localities in concern; were not reflected as high muscle
concentrations in the 4 fish species. Trace accumulations
of the test metals were found in the muscles.
