Age-Dependent Accumulation of Heavy Metals in Baikal Seal (Phoca sibirica) from the Lake Baikal

被引：0

作者：

I. Watanabe

S. Tanabe

M. Amano

N. Miyazaki

E. A. Petrov

R. Tatsukawa

机构：

[1] Department of Environment Conservation,

[2] Ehime University,undefined

[3] Tarumi 3-5-7,undefined

[4] Matsuyama 790-8566,undefined

[5] Japan ,undefined

[6] Otsuchi Marine Research Center,undefined

[7] Ocean Research Institute,undefined

[8] The University of Tokyo,undefined

[9] Akahama,undefined

[10] Otsuchi-cho,undefined

[11] Iwate 028-1102,undefined

[12] Japan ,undefined

[13] Limnological Institute of the Siberian Division,undefined

[14] Ulan-Batorskaya 3,undefined

[15] Irkutsk 664033,undefined

[16] Russia ,undefined

来源：

Archives of Environmental Contamination and Toxicology | 1998年 / 35卷

关键词：

Marine Mammal; Minke Whale; Harp Seal; Striped Dolphin; Antarctic Minke Whale;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Concentrations of Fe, Mn, Zn, Cu, Cd, and Hg were determined in the liver, kidney, and muscle of 60 Baikal seals collected from Lake Baikal in 1992 to investigate age-dependent accumulation. Among essential elements, Fe concentrations in the muscle, liver, and kidney increased with age, suggesting development of diving ability. The concentrations of Mn, Zn, and Cu decreased with age, especially at immature stages. Toxic elements such as Hg and Cd decreased in adult males and thus the male-female difference was clearly observed in their concentrations, which differed from patterns usually found in marine mammals. Such accumulation patterns were due to difference in the feeding rates between males and females under low exposure to Hg and Cd. In addition, a greater excretion of Hg than that of Cd through molting and parturition was estimated.

引用

页码：518 / 526

页数：8

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