No abstract

In the present study, the concentrations of various heavy metals including copper, nickel, lead, cadmium, iron and manganese were investigated in several organs (muscles of head, muscles of trunks, muscles of tails, liver, gills, gonads and intestine) of Tenualosa ilisha (Hamilton, 1822) which was collected from Shatt Al-Arab river during the period between February 2013 and September 2013. Heavy metal concentrations were measured by using Flame Atomic Absorption Spectrophotometer. The results of the heavy metals during study period showed that the highest concentration was 41.910 µg/g (dry weight) for iron between February and March, whereas the least concentration was 0.036 µg/g (dry weight) for lead between June and July. Also, they showed that the highest concentration was 27.470 µg/g (dry weight) for iron in liver, whereas the least concentration was 0.003 µg/g (dry weight) for lead in muscles of tails.

Concentrations of cadmium, cobalt, cupper, iron, manganese and nickel were determined in four organs (liver, gills, ovaries and muscles) of Acanthopagrus latus, which belong to family of Sparidae collected from Al- Razazah Lake. Heavy metals have been determined by means of Atomic Absorption Spectrophotometry. The fish average weight was 378 g and the average length was 215 mm. Iron showed the highest value (1029.114 μg/g dry weight), while manganese showed the lower value (60.335 μg/g dry weight). This study showed that the concentration of heavy metals distributed in the organs was as follows: liver > gills > muscles > ovaries, while the total heavy metals concentration had been distributed as follow: iron > cupper > cadmium > nickel > manganese > cobalt.

No abstract

Concentrations of cadmium, cobalt, cupper, iron, manganese and nickel were determined in four organs (liver, gills, ovaries and muscles) of Acanthopagrus latus, which collected from Iraqi marine waters during the period between November 2010 and October 2011. Heavy metals have been determined by means of Atomic Absorption Spectrophotometry. The fish average weight was 61.2 g and the average length was 144 mm. Nickel showed the highest values in liver, gills and muscles during spring (201.19, 190.00 and 148.00 μg/gm dry weight), respectively. While cobalt showed the lower value (1.12 μg/gm dry weights) in the liver and cadmium showed its lower value (1.23 μg/gm dry weights) in the gills during winter. Muscles showed constant levels of heavy metals, it showed the lower values (not detected) during winter. Ovaries showed high levels for all heavy metals during spring, but its value still instable during the other seasons. This study showed that the concentration of heavy metals distributed in the organs was as follows: liver > gills > muscles > ovaries, while the heavy metals concentration had been distributed during the seasons as follow: winter > spring > autumn > summer.