| Summary: | The
concentrations of iron, copper, zinc, chromium, arsenic, cadmium and lead were
determined by inductively coupled plasma mass spectrometer (ICP-MS) in the
muscle, gill, brain and liver tissues of lessepsian fish species sampled from
Taşucu region located on the south of Turkish coastal waters in the
Mediterranean Sea for all seasons. While iron showed the highest levels,
cadmium showed the lowest levels in the examined tissues of all fish species (Pelates quadrilineatus, Upeneus moluccensis, Nemipterus randalli, Saurida lessepsianus). Metal levels
showed tissue-dependent changes in the species studied. Cadmium was detected
only in the liver tissue in all fish, in addition to a few other tissues (U. moluccensis’s brain tissues in summer
season and P. quadrilineatus’s gill
tissues in winter season). The maximum accumulation of Fe except for N. randalli and S. lessepsianus was detected in liver tissue. The maximum
accumulation of Cu in all species was detected in liver tissue. The maximum
accumulation of Zn except for S.
lessepsianus was also detected in liver tissue. The highest accumulations
of As and Cr in other fish species except for N. randalli were also detected in liver tissue. Except for As
accumulation in N. randalli, the
least accumulation for metals in all species was determined in muscle tissue.
According to the seasons, there was no statistically significant relation
between metal accumulations. Metal concentrations in edible parts of fish
species were 17.26-108.22 µg g-1 dw for iron, 0.54-3.65
µg g-1 dw for copper, 11.50-31.17 µg g-1 dw for
zinc, 0.32-1.09 µg g-1 dw for chromium, 4.32-69.44 µg g-1
dw for arsenic, below limit (not detectable) for cadmium, N.D.-1.12 µg g-1
dw for lead. In this study, for all metals except arsenic
there is no health risk through an exposure of consumption of certain fish.
Additionally, the results obtained for the elements in analyzed fish species
were within acceptable limits for human consumption.
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