Determination of levels of some heavy metals in water and feathers of Armenian Gull (Larus armenicus) inhabiting Hazar Lake

In this study which was carried out between March 2015-March 2016 Armenian Gull (Larus armenicus) have been choosen as bio-indicator species to determine the heavy metal contamination in Hazar Lake. In accordance with this purpose, the feather samples from different parts of the bodies of adult and juvenile Armenian Gulls were collected ( APF: Adult Primary Wing Feather; ASF: Adult Secondary Wing Feather; ACF: Adult Cover Feather; JCF: Juvenile Cover Feather) and accumulation ratios and levels cadmium (Cd), lead (Pb), copper (Cu), iron (Fe), nickel (Ni), zinc (Zn), selenium (Se), manganese (Mn), crom (Cr) and arsenic (As). The highest average residue amount in juvenile cover feathers were 0.02 mg/kg Cd, 0.46 mg/kg Pb, 0.72 mg/kg Cu, 58,31 mg/kg Fe, 0.04 mg/kg Ni, 8.38 mg/kg Zn, 0.07 mg/kg Se, 1.3 mg/kg Mn, 0.005 mg/kg Cr and 0. 01 mg/kg As. Analysis of the heavy metals in Hazar Lake's water, Pb, Fe, Zn and As were determined all seasons. When we evaluated the findings heavy metal concentration of water were found decrease in sequence of; Fe>As>Zn>Ni>Cd >Cu>Cr> Pb>Mn>Se.