Organochlorine pesticides and heavy metals in fish from Lake Awassa, Ethiopia : Insights from stable isotope analysis

Yohannes, Yared Beyene; Ikenaka, Yoshinori; Nakayama, Shouta M. M.; Saengtienchai, Aksorn; Watanabe, Kensuke; Ishizuka, Mayumi

Organochlorine pesticides and heavy metals in fish from Lake Awassa, Ethiopia : Insights from stable isotope analysis

Yohannes, Yared Beyene; Ikenaka, Yoshinori; Nakayama, Shouta M. M. et al.

Chemosphere, 2013, 91(6), 857-863

Permalink : https://hdl.handle.net/2115/52915

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アクセス権	open access
URI	https://hdl.handle.net/2115/52915
タイトル	Organochlorine pesticides and heavy metals in fish from Lake Awassa, Ethiopia : Insights from stable isotope analysis
著者	Yohannes, Yared Beyene ; Ikenaka, Yoshinori ; Nakayama, Shouta M. M. ; Saengtienchai, Aksorn ; Watanabe, Kensuke ; Ishizuka, Mayumi
著者名 Yohannes, Yared Beyene
e-Rad_Researcher 40543509 著者名 Ikenaka, Yoshinori
e-Rad_Researcher 90647629 著者名 Nakayama, Shouta M. M.
著者名 Saengtienchai, Aksorn
著者名 Watanabe, Kensuke
e-Rad_Researcher 50332474 著者名 Ishizuka, Mayumi
言語	英語
キーワード	Bioaccumulation
	OCPs
	Heavy metal
	Fish
	Lake Awassa
発行日	2013-05
出版者	Elsevier
収録物名	Chemosphere
巻(号)	91(6)
ページ	857-863
抄録	The levels and bioaccumulation of organochlorine pesticides (OCPs) and heavy metals were studied in muscle and liver of three fish species, with two trophic levels, from Lake Awassa, Ethiopia. DDTs were the predominant organic pollutant in all species with a maximum level of 73.28 ng g(-1) wet weight (ww). p,p'-DDE was the predominate congener and showed a significant (p <0.001) relationship with delta N-15, which indicates that DDTs could biomagnified in the food web of the lake. Generally, high levels of heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn and Hg) were found in liver samples as compared to muscles. The levels of Cd, Co, Cu, Ni, and Pb in liver samples showed negative correlation with delta N-15. They were found markedly higher in the lower trophic level fish species (p < 0.05) that indicates biodilution whereas; Zn level showed positive correlation with delta N-15. (C) 2013 Elsevier Ltd. All rights reserved.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0045-6535
関連情報	PMID 23422170
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.chemosphere.2013.01.047