Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 1
Written by Petya ZAHARIEVA, Diana KIRIN
In 2020, 30 specimens of bleak (Alburnus alburnus Linnaeus, 1758), 3 samples of water and 3 samples of sediments were collected from the Danube River (Kudelin) in the northwestern part of the Republic of Bulgaria. Samples of water and sediments, of tissues/ organs (liver, skin and muscles) of bleak were investigated for the presence of cadmium (Cd). The concentrations of Cd in the studied tissues/ organs of Alburnus alburnus decreased as follows: liver (CCd = 1.38 ± 0.55 mg.kg-1 wet weight) > skin (CCd = 0.50 ± 0.18 mg.kg-1 wet weight) > muscles (CCd = 0.09 ± 0.05 mg.kg-1 wet weight). The reported concentrations of Cd in water samples are CCd = 0.008 ± 0.006 mg.l-1, and in sediments samples CCd = 1.55 ± 2.35 mg.kg-1 dry weight.
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