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Trace Element Contamination in Tissues of Four Bird Species from the Rift Valley Region, Ethiopia

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Title: Trace Element Contamination in Tissues of Four Bird Species from the Rift Valley Region, Ethiopia
Authors: Yohannes, Yared Beyene Browse this author
Ikenaka, Yoshinori Browse this author →KAKEN DB
Nakayama, Shouta M. M. Browse this author →KAKEN DB
Mizukawa, Hazuki Browse this author →KAKEN DB
Ishizuka, Mayumi Browse this author →KAKEN DB
Keywords: Bird
Trace element
Ecological risk assessment
Ethiopian rift valley
Issue Date: Feb-2017
Publisher: Springer
Journal Title: Bulletin of environmental contamination and toxicology
Volume: 98
Issue: 2
Start Page: 172
End Page: 177
Publisher DOI: 10.1007/s00128-016-2011-4
PMID: 28035427
Abstract: Concentrations of ten trace elements (Hg, As, Cd, Pb, Co, Cr, Cu, Ni, Se and Zn) were determined in different tissues (liver, kidney, muscle, heart and brain) of African sacred ibis (Threskiornis aethiopicus), Hamerkop (Scopus umbretta), marabou stork (Leptoptilos crumeniferus) and great white pelican (Pelecanus onocrotalus) inhabiting the Ethiopian Rift Valley region. There were differences in trace element patterns among the bird species. Significantly (p < 0.05) higher concentrations of Cd (5.53 A mu g/g dw +/- 2.94) in kidney and Hg (0.75 A mu g/g ww +/- 0.30) in liver were observed in the great white pelican compared to the other species, and liver concentrations of these two elements showed positive correlations with trophic level. Concentrations of toxic elements (As, Cd, Pb and Hg) in liver were below their respective toxicological thresholds, indicating that the data may provide baseline information for future studies.
Rights: The final publication is available at Springer via
Type: article (author version)
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 石塚 真由美

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