Total and Methylmercury in Soft Tissues of White-Tailed Eagle (Haliaeetus albicilla) and Osprey (Pandion haliaetus) Collected in Poland
| Autor: | Halina Budis, Javier B. Melgarejo, Jerzy Golas, Natalia Lanocha, Anna Okonska, Elżbieta Kalisińska, Jerzy Górecki, Izabella Rzad |
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| Rok vydání: | 2014 |
| Předmět: |
Eagle
Biomagnification Geography Planning and Development Zoology chemistry.chemical_element Biology chemistry.chemical_compound Accumulation Dry weight Report biology.animal Animals Environmental Chemistry Piscivorous birds Organic and inorganic mercury Methylmercury Falconiformes Ecology Haliaeetus albicilla General Medicine Methylmercury Compounds Mercury (element) chemistry Tissue differences Bioaccumulation White-tailed eagle Poland Water Pollutants Chemical |
| Zdroj: | Ambio |
| ISSN: | 1654-7209 0044-7447 |
| DOI: | 10.1007/s13280-014-0533-8 |
| Popis: | Mercury (Hg) contamination in piscivorous birds, especially methylmercury (MeHg), has been drawing much attention worldwide in regard to its bioaccumulation and biomagnification in food chains. In this study on Hg in the soft tissues of white-tailed eagles (n = 22) and ospreys (n = 2) from Poland, total Hg (THg) range was 0.15–47.6 while MeHg range was 0.11–8.05 mg kg−1 dry weight. In both species, median THg and MeHg concentrations were lower in the muscle and brain than in the liver and kidney. Median nephric residues were just under 3 and 5 mgTHg kg−1 or 0.9 and 3.7 mgMeHg kg−1 for white-tailed eagle and osprey, respectively. In Norwegian data from the 1970s and in our results, MeHg in the muscle of white-tailed eagle was ~60 % THg (%MeHg = MeHg/THg × 100), lower than in other piscivorous birds. A clear similarity in THg tissue levels was found between Polish and German populations of white-tailed eagles. |
| Databáze: | OpenAIRE |
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