Specific accumulation of arsenic compounds in green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata) from Ishigaki Island, Japan

被引：28

作者：

Agusa, Tetsuro ^{[1
]}

Takagi, Kozue ^{[1
]}

Kubota, Reiji ^{[2
]}

Anan, Yasumi ^{[3
]}

Iwata, Hisato ^{[1
]}

Tanabe, Shinsuke ^{[1
]}

机构：

[1] Ehime Univ, CMES, Matsuyama, Ehime 7908577, Japan

[2] Natl Inst Hlth Sci, Div Environm Chem, Setagaya Ku, Tokyo 1588501, Japan

[3] Chiba Univ, Grad Sch Pharmaceut Sci, Chuo Ku, Chiba 2608675, Japan

来源：

ENVIRONMENTAL POLLUTION | 2008年 / 153卷 / 01期

基金：

日本学术振兴会;

关键词：

arsenic; arsenic compounds; hawksbill turtle; green turtle; muscle; size-dependent accumulation;

D O I：

10.1016/j.envpol.2007.07.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Concentrations of total arsenic (As) and individual compounds were determined in green and hawksbill turtles from Ishigaki Island, Japan. In both species, total As concentrations were highest in muscle among the tissues. Arsenobetaine was a major compound in most tissues of both turtles. High concentrations of trimethylarsine oxide were (]elected in hawksbill turtles. A significant negative correlation between standard carapace length (SCL), an indicator of age, and total As levels in green turtles was found. In contrast, the levels increased with SCL of hawksbill turtles. Shifts in feeding habitats with growth may account for such a growth-dependent accumulation of As. Although concentrations of As in marine sponges, the major food of hawksbill turtles are not high compared to those in algae eaten by green turtles, As concentrations in hawksbill turtles were higher than those in green turtles, indicating that hawksbill turtles may have a specific accumulation mechanism for As. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：127 / 136

页数：10

共 84 条

[81] METABOLISM OF ARSENOBETAINE IN MICE, RATS AND RABBITS [J].