Changes in dietary bioaccumulation of tributyltin chloride (TBTCl) in red sea bream (Pagrus major) with the concentration in feed

被引：11
|
作者：
Ikeda, K [1 ]
Yamada, H [1 ]
机构：
[1] Natl Res Inst Fisheries & Environm Inland Sea, Fisheries Res Agcy, Hiroshima 7390452, Japan
来源：
WATER RESEARCH | 2003年 / 37卷 / 07期
关键词：
bioaccumulation; TBTCl; red sea bream; biomagnification factor; assimilation efficiency;
D O I：
10.1016/S0043-1354(02)00521-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The effect of the concentration of tributyltin (TBT) in feed on the dietary bioaccumulation of tributyltin chloride (TBTCl) was studied in an 8-week uptake experiment and a 4-week elimination experiment using red sea bream (Pagrus major). The biomagnification factor (BMF) and the assimilation efficiency (AE) decreased from 0.30 to 0.15 and from 13% to 5.9%, respectively, as the TBT concentration in feed increased from 1.3 to 20 mug/g. The elimination rate constant (k(2)) was independent of the TBT concentration in the fish. Laboratory measurements of the BMF and AE of TBTCl underestimate actual field values if highly contaminated feed is used. Judging from the BMF and AE, the risk of the bioaccumulation of TBTCl through the food chain might be smaller than that of polychlorinated biphenyls. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1497 / 1504
页数：8
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