Mercury exposure and risk assessment for Eurasian otters (Lutra lutra) in Denmark

Mercury exposure and risk assessment for Eurasian otters (Lutra lutra) in Denmark

Mercury (Hg) exposure may cause a wide range of adverse effects in mammals. A piscivorous apex predator, as the Eurasian otters (Lutra lutra) may accumulate and biomagnify heavy metals and pollutants. Here we investigate the Hg burden in 117 otters from Denmark to evaluate Hg concentrations and risk...

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Veröffentlicht in:Chemosphere (Oxford) 2021-06, Vol.272, p.129608, Article 129608
Hauptverfasser: Dibbern, Miriam, Elmeros, Morten, Dietz, Rune, Søndergaard, Jens, Michelsen, Anders, Sonne, Christian
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Bioaccumulation
Denmark
Ecotoxicology
Female
Heavy metals
Male
Mercury - analysis
Otters
Risk Assessment
Stable isotopes
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - toxicity
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Zusammenfassung:Mercury (Hg) exposure may cause a wide range of adverse effects in mammals. A piscivorous apex predator, as the Eurasian otters (Lutra lutra) may accumulate and biomagnify heavy metals and pollutants. Here we investigate the Hg burden in 117 otters from Denmark to evaluate Hg concentrations and risks of health effects. Mercury concentrations ranged between 0.02 and 10.1 μg/g wet weight (ww) in liver tissue and 0.30–40.0 μg/g dry weight in fur. Concentrations in liver and fur in individual otters were highly correlated (P 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2021.129608