Department of Animal Science, Facultad de Ciencias Veterinarias, Universidad de Concepción, Av. Vicente Méndez 595, Chillán, Chile.
Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, 10154 Turin, Italy.
Sci Total Environ. 2024 Apr 1;919:170923. doi: 10.1016/j.scitotenv.2024.170923. Epub 2024 Feb 12.
Antarctica is the most remote and coldest regions of the planet, but the presence of REEs there has received little attention. This study assessed REE-contents in the feathers of adult gentoo penguins from Ardley Island, Kopaitic Island and Base O'Higgins. Field work was accomplished during 2011 (austral summer), and determination of elements was performed with ICP-MS. In general, REE-levels showed descending relations as follows: Ce > La > Y > Nd > Sc > Pr > Gd > Sm > Dy >Er > Yb > Eu > Ho > Tb > Tm > Lu. The data showed an increase of the levels of REEs from the lower part of the feather to the tip. This finding seems to be spatially dependent, but geochemical, anthropogenic conditions, feeding habits, sex, or even health status of birds should also be considered. It is a subject that requires deeper attention in future studies.
南极洲是地球上最偏远和最寒冷的地区，但那里的稀土元素含量却很少受到关注。本研究评估了来自阿德雷岛、科帕提岛和奥希金斯基地的成年巴布亚企鹅羽毛中的稀土元素含量。野外工作于 2011 年（澳大利亚夏季）完成，并用 ICP-MS 进行了元素测定。一般来说，稀土元素水平表现出如下的下降关系：Ce > La > Y > Nd > Sc > Pr > Gd > Sm > Dy > Er > Yb > Eu > Ho > Tb > Tm > Lu。数据显示，从羽毛的下部到尖端，稀土元素的水平增加。这一发现似乎与空间有关，但也应考虑地球化学、人为条件、饮食习惯、性别，甚至鸟类的健康状况。这是一个需要在未来研究中进一步关注的问题。
