Element concentrations, histology and serum biochemistry of arctic char (Salvelinus alpinus) and shorthorn sculpins (Myoxocephalus scorpius) in northwest Greenland

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  • Rasmus Dyrmose Nørregaard
  • Lis Bach
  • Ole Geertz-Hansen
  • Jacob Nabe-Nielsen
  • Barbara Nowak
  • Khattapan Jantawongsri
  • Mai Dang
  • Jens Søndergaard
  • Leifsson, Páll S.
  • Bjørn M. Jenssen
  • Tomasz M. Ciesielski
  • Augustine Arukwe
  • Christian Sonne

The increasing exploratory efforts in the Greenland mineral industry, and in particular, the proposed rare earth element (REE) mining projects, requires an urgent need to generate data on baseline REE concentrations and their potential environmental impacts. Herein, we have investigated REE concentrations in anadromous Arctic char (Salvelinus alpinus) and shorthorn sculpins (Myoxocephalus scorpius) from uncontaminated sites in Northwest Greenland, along with the relationships between the element concentrations in gills and liver, and gill histology and serum biochemical parameters. Concentrations of arsenic, silver, cadmium, cerium, chromium, copper, dysprosium, mercury, lanthanum, neodymium, lead, selenium, yttrium, and zinc in gills, liver and muscle are presented. No significant statistical correlations were observed between element concentrations in different organs and gill histology or serum biochemical parameters. However, we observed positive relationships between age and histopathology, emphasizing the importance of including age as a co-variable in histological studies of fish. Despite no element-induced effects were observed, this study is considered an important baseline study, which can be used as a reference for the assessment of impacts of potential future REE mine sites in Greenland.

OriginalsprogEngelsk
Artikelnummer112742
TidsskriftEnvironmental Research
Vol/bind208
Antal sider10
ISSN0013-9351
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
The Greenland Research Council is acknowledged for funding Rasmus D. Nørregaards PhD study, along with ‘Torben og Alice Frimodts Fond’ for providing additional funding for this study. This project was funded by financial support from The Environmental Agency for Mineral Resource Activities (project 771020), Government of Greenland and The Ministry of Environment and Food of Denmark . The project also received funding from the Arctic Research Centre, Aarhus University . Hans and Birthe Jensen at Hotel Qaanaaq are acknowledged for their invaluable contribution with accommodation and assistance in the field work – without their help this study would not have been possible. AM Plejdrup and SE Joensen at Bioscience are acknowledged for conducting the element analyses. Laboratory technician B Andersen at Department of Veterinary and Animal Sciences, University of Copenhagen is acknowledged for preparing slides for histological examination.

Funding Information:
The Greenland Research Council is acknowledged for funding Rasmus D. N?rregaards PhD study, along with ?Torben og Alice Frimodts Fond? for providing additional funding for this study. This project was funded by financial support from The Environmental Agency for Mineral Resource Activities (project 771020), Government of Greenland and The Ministry of Environment and Food of Denmark. The project also received funding from the Arctic Research Centre, Aarhus University. Hans and Birthe Jensen at Hotel Qaanaaq are acknowledged for their invaluable contribution with accommodation and assistance in the field work ? without their help this study would not have been possible. AM Plejdrup and SE Joensen at Bioscience are acknowledged for conducting the element analyses. Laboratory technician B Andersen at Department of Veterinary and Animal Sciences, University of Copenhagen is acknowledged for preparing slides for histological examination.

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© 2022 The Authors

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