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Bioaccumulation of rare earth elements in juvenile arctic char (Salvelinus alpinus) under field experimental conditions


Norregaard, RD and Kaarsholm, H and Bach, L and Nowak, B and Geertz-Hansen, O and Sondergaard, J and Sonne, C, Bioaccumulation of rare earth elements in juvenile arctic char (Salvelinus alpinus) under field experimental conditions, Science of The Total Environment, 688 pp. 529-535. ISSN 0048-9697 (2019) [Refereed Article]

Copyright Statement

2019 Elsevier B.V. All rights reserved

DOI: doi:10.1016/j.scitotenv.2019.06.180


Few ecotoxicological studies exist on the accumulation and effects of rare earth elements (REEs) in fish, particularly on Arctic species. In southwest Greenland, there are currently several advanced exploration REE mining projects. The aim of this study was to investigate accumulation of REEs in native fish species. Juvenile arctic chars, Salvelinus alpinus, were pulse-exposed to cerium (Ce), lanthanum (La) and yttrium (Y) using an in-situ flow-through system over a period of 15 days. Results showed that the arctic char accumulated most REEs in the gills > liver > muscle. We also demonstrated the ability of the arctic char to rapidly excrete the REEs throughout the experiment, where levels of post exposure accumulation also declined throughout the period. These results demonstrate the importance of further studies on accumulation of REE in the arctic char native to the site of future mining operations. Long-term exposure will most likely result in accumulation of REEs in arctic char, and the effects and accumulation patterns of this should be explored further.

Item Details

Item Type:Refereed Article
Keywords:rare earth elements, in situ experiment, Arctic char, cerium, lanthanum, yttrium
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fish pests and diseases
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Mineral exploration
Objective Field:Mineral exploration not elsewhere classified
UTAS Author:Nowak, B (Professor Barbara Nowak)
ID Code:136587
Year Published:2019
Web of Science® Times Cited:2
Deposited By:Fisheries and Aquaculture
Deposited On:2020-01-10
Last Modified:2020-04-30

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