Thallium in spawn, juveniles, and adult common toads (Bufo bufo) living in the vicinity of a zinc-mining complex, Poland.
Thallium in spawn, juveniles, and adult common toads (Bufo bufo) living in the vicinity of a zinc-mining complex, Poland.
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DOI：
10.1007/s10661-014-4141-7
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发表时间：
2015-01
影响因子：
3
通讯作者：
Krasnodebska-Ostrega, Beata
中科院分区：
文献类型：
--
作者：
Dmowski, Krzysztof;Rossa, Monika;Kowalska, Joanna;Krasnodebska-Ostrega, Beata
研究人员对生活在波兰布科诺锌铅冶炼厂附近的普通蟾蜍 Bufo bufo 的繁殖种群中是否存在铊进行了研究。在产卵池的底部沉积物、产下的卵、变态后的幼体以及成年个体的选定组织中测量Tl浓度。在鱼卵中检测到非常高浓度的 Tl（13.97±8.90 mg/kg d.w.）。 50% 的鱼卵样本中，含量超过 20 mgTl/kg 干重。讨论了铊从雌性到卵母细胞的母体转移问题。由于铊的大量积累，产卵分析可用作环境中该元素存在的敏感指标，并可能取代涉及杀死成年动物的更具侵入性的方法。在那些富含锌铅矿石的地区，两栖动物的卵可能是捕食者的铊污染的一个非常重要的来源。在布科诺成年蟾蜍的所有组织中，肝脏的铊积累量最高（平均 3.98 毫克/千克干重，最大值为 18.63）。对于多达 96.5% 的肝脏，浓度超过 1.0 mgTl/kg 干重。这被视为中毒迹象。
A breeding population of the common toad Bufo bufo living in the vicinity of a Zn-Pb smelting works in Bukowno, Poland was studied for the presence of thallium. Tl concentration was measured in the bottom sediments of the spawning pond, in the laid eggs, in juveniles after metamorphosis, and in the selected tissues of the adult individuals. A very high concentration of Tl was detected in the spawn (13.97 ± 8.90 mg/kg d.w.). In 50 % of the spawn samples, levels exceeded 20 mgTl/kg d.w. The issue of maternal transfer of thallium from females to oocytes is discussed. Due to a significant accumulation of thallium, spawn analysis can be used as a sensitive indicator of the presence of this element in the environment and may replace more invasive methods that involve the killing of adult animals. In those regions that are abundant in Zn-Pb ores, the spawn of amphibians may be a very important source of thallium contamination for predators. From among all tissues of the Bukowno adult toads, the livers have shown the highest accumulation of thallium (mean 3.98 mg/kg d.w. and maximum value—18.63). For as many as 96.5 % of livers, concentrations exceeded 1.0 mgTl/kg d.w. which is treated as indicative of poisoning.
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影响因子：
9.8
作者：
Bergeron, Christine M.;Hopkins, William A.;Unrine, Jason M.
通讯作者：
Unrine, Jason M.
影响因子：
8.8
作者：
Jakubowska, Monika;Pasieczna, Anna;Lukaszewski, Zenon
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Lukaszewski, Zenon
影响因子：
10.4
作者：
Hopkins WA;DuRant SE;Staub BP;Rowe CL;Jackson BP
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Jackson BP
影响因子：
6.8
作者：
Dmowski, K;Kozakiewicz, A;Kozakiewicz, M
通讯作者：
Kozakiewicz, M
影响因子：
4.2
作者：
Kazantzis, G
通讯作者：
Kazantzis, G