J. Phys. IV France 107 (2003) 1393
Comparative study of mercury in liver and muscle of Dall's porpoise (Phocoenoides dalli) off Sanriku coast of JapanJ. Yang1, 2, T. Kunito3, S. Tanabe3 and N. Miyazaki4
1 lnstitute of Hydrobiology, The Chinese Academy of Sciences, Wuhan, Hubei 430072, China
2 Freshwater Fisheries Research Center, The Chinese Academy of Fishery Sciences, No. 1 Qitang, Wuxi City, Jiangsu 214081, China
3 Center for Marine Environmental Studies, Ehime University, Tarumi 3-5-7, Matsuyama 790-8566, Ehime, Japan
4 Otsuchi Marine Research Center, Ocean Research Institute, University of Tokyo, Akahama 2-106-1, Otsuchi 028-1102, Iwate, Japan
Liver and muscle samples of 22 Dall's porpoises (Phocoenoides dalli ) collected off Sanriku coast of Japan were analyzed to compare the bioaccumulation of total mercury ( Hg) and organic mercury (OrgHg). Concentrations of Hg and OrgHg in the liver were significantly higher than those in the muscle. In the liver evident detoxification effect of Hg was suggested by that concentrations of Hg were usually much higher than those of OrgHg. In the muscle such effect was limited as Hg concentrations were closed to those of OrgHg.
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