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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine >
Peer-reviewed Journal Articles, etc >
Organochlorine pesticides and heavy metals in fish from Lake Awassa, Ethiopia : Insights from stable isotope analysis
| Title: | Organochlorine pesticides and heavy metals in fish from Lake Awassa, Ethiopia : Insights from stable isotope analysis |
| Authors: | Yohannes, Yared Beyene Browse this author | | Ikenaka, Yoshinori Browse this author →KAKEN DB | | Nakayama, Shouta M. M. Browse this author →KAKEN DB | | Saengtienchai, Aksorn Browse this author | | Watanabe, Kensuke Browse this author | | Ishizuka, Mayumi Browse this author →KAKEN DB |
| Keywords: | Bioaccumulation | | OCPs | | Heavy metal | | Fish | | Lake Awassa |
| Issue Date: | May-2013 |
| Publisher: | Elsevier |
| Journal Title: | Chemosphere |
| Volume: | 91 |
| Issue: | 6 |
| Start Page: | 857 |
| End Page: | 863 |
| Publisher DOI: | 10.1016/j.chemosphere.2013.01.047 |
| PMID: | 23422170 |
| Abstract: | 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. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/52915 |
| 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)
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Submitter: 石塚 真由美
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