Espejo Winfred, Chiang Gustavo, Kitamura Daiki, Kashiwada Shosaku, O'Driscoll Nelson J, Celis José E
Soils and Natural Resources Department, Facultad de Agronomía, Universidad de Concepción, Av. Vicente Méndez 595, Chillán, Chile.
Sustainability Research Centre-Ecology & Biodiversity Department, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile.
Mar Pollut Bull. 2023 Feb;187:114575. doi: 10.1016/j.marpolbul.2023.114575. Epub 2023 Jan 12.
Penguins are sentinel species for marine pollution, but their role as potential biovectors of REEs or TEs to ecosystems has been poorly studied. The present study analyzed (ICP-MS) feathers of young and adult Gentoo penguins from Fildes Bay, for 63 elements (including 15 REEs). Most of the REEs were present at very low levels, ranging from 0.002 (Lu) to 0.452 (Sm) μg g d.w., several orders of magnitude lower than TEs. The content of TEs varied widely, with Al, Fe, Zn, Sr, Ba, Ti and Mn as the seven having the highest concentrations in the feathers of both age groups. The results show that P. papua deposits REEs and TEs through the feathers on the penguin rockery, whose potential actual impacts and long-term fate in remote regions need deeper research. This work presents essential baseline data that will be useful for further studies on Antarctic penguins.
企鹅是海洋污染的指示物种，但它们作为稀土元素（REEs）或痕量元素（TEs）向生态系统传播的潜在生物载体的作用尚未得到充分研究。本研究利用电感耦合等离子体质谱法（ICP-MS）分析了来自菲尔德斯湾的幼年和成年巴布亚企鹅的羽毛中的63种元素（包括15种稀土元素）。大多数稀土元素的含量极低，范围从0.002（镥）到0.452（钐）微克/克干重，比痕量元素低几个数量级。痕量元素的含量差异很大，铝、铁、锌、锶、钡、钛和锰是两个年龄组羽毛中浓度最高的七种元素。结果表明，巴布亚企鹅通过羽毛将稀土元素和痕量元素沉积在企鹅假山石上，其在偏远地区的潜在实际影响和长期归宿需要更深入的研究。这项工作提供了重要的基线数据，将有助于对南极企鹅的进一步研究。
