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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 >
Heavy Metal Accumulation in Lake Sediments, Fish (Oreochromis niloticus and Serranochromis thumbergi), and Crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia
| Title: | Heavy Metal Accumulation in Lake Sediments, Fish (Oreochromis niloticus and Serranochromis thumbergi), and Crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia |
| Authors: | Nakayama, Shouta M. M. Browse this author →KAKEN DB | | Ikenaka, Yoshinori Browse this author →KAKEN DB | | Muzandu, Kaampwe Browse this author | | Choongo, Kennedy Browse this author | | Oroszlany, Balazs Browse this author | | Teraoka, Hiroki Browse this author | | Mizuno, Naoharu Browse this author | | Ishizuka, Mayumi Browse this author →KAKEN DB |
| Keywords: | heavy metals | | copper | | Zambia | | Oreochromis niloticus | | Serranochromis thumbergi | | Cherax quadricarinatus | | sediment |
| Issue Date: | Aug-2010 |
| Publisher: | Springer |
| Journal Title: | Archives of Environmental Contamination and Toxicology |
| Volume: | 59 |
| Issue: | 2 |
| Start Page: | 291 |
| End Page: | 300 |
| Publisher DOI: | 10.1007/s00244-010-9483-8 |
| PMID: | 20162262 |
| Abstract: | We measured the level of heavy metal accumulation in lake sediments, herbivorous (Oreochromis niloticus) and carnivorous (Serranochromis thumbergi) fish, and crayfish (Cherax quadricarinatus) from Lake Itezhi-tezhi (ITT) and Lake Kariba. We used atomic absorption spectrophotometry to quantify the levels of seven heavy metals (Cr, Co, Cu, Zn, Cd, Pb, and Ni). The sediment and the herbivorous fish O. niloticus accumulated a very high concentration of Cu in Lake ITT, most likely due to the discharge of Cu waste from a mining area 450 km upstream. The aquatic species we sampled in Lake Kariba had higher concentrations of Cr, Ni, and Pb relative to those in Lake ITT. This is most likely due to anthropogenic activities, such as the use of leaded petrol and antifouling agents in marine paints. Interestingly, we observed a negative correlation between the coefficient of condition (K) and Ni concentration in the crayfish hepatopancreas. Both O. niloticus and the crayfish had much higher biota-sediment accumulation factors (BSAF) for Cu, Zn, and Cd relative to Cr, Co, Pb, and Ni. The rank of BSAF values for O. niloticus (Cu > Cd > Zn) and C. quadricarinatus (Zn > Cd > Cu) differed from the expected ranks based on the general order of affinity of metals (Cd >> Zn > Cu). |
| Rights: | The original publication is available at http://www.springerlink.com |
| Relation: | http://www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/43285 |
| 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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