Contaminant and Biological Data on Landlocked Arctic Char

We set out to examine possible links between climate warming and increases in mercury concentrations ([Hg]) in landlocked Arctic char (Salvelinus alpinus) in the High Arctic. During the late 1990s to mid 2000s [Hg] remained constant or increased slightly in landlocked char in lakes on Ellesmere Island and Cornwallis Island but have declined since the mid 2000s. The datasets include 14 to 20 sampling years over the period 1989 to 2017. To investigate the influence of the catchments on Hg, Gantner et al (2010) selected coastal lakes of similar size in Arctic regions that vary in climatic conditions, to also include the influence of latitude on Hg concentrations in Arctic char. One lake, Pingualuit crater Lake in Nunavik, was selected as reference point for atmospheric deposition of Hg to a lake with minimal catchment area. Sampling of water and Arctic char is aided by local people. Chemical analyses include total mercury, methyl mercury (in water), PCBs, PBDEs, organochlorine pesticides and perfluoroalkyl substances (PFASs) as well as % lipid and stable Isotope analysis. Results for mercury in landlocked char from studies in lakes near Resolute and at other sites studied by Gantner et al. were included in the Canadian Arctic Contaminants Assessment Report on mercury which has recently been published (Chetelat et al. 2015. Mercury in freshwater ecosystems of the Canadian Arctic: Recent advances on its cycling and fate. Sci.Total Environ. 509/510: 41-66). Results for spatial and temporal trends of persistent organic pollutants in the landlocked char are discussed in Chapter 4 of the Canadian Arctic Contaminants Assessment Report On Persistent Organic Pollutants 2013. Muir, D.C.G., P. Kurt-Karakas and J. Stow (Eds) Aboriginal Affairs and Northern Development Canada. Ottawa ON pp 273-422.

Metadata Access
Creator Muir, Derek; Barst, Ben; Burke, Samantha; Cabrerizo, Ana; Gantner, Nikolaus; Hudelson, Karista; Kirk, Jane; Koeck, Guenter
Publisher Canadian Cryospheric Information Network
Contributor Polar Data Catalogue
Publication Year 2021
Rights Research programs, CCIN, or ArcticNet take no liability for the use or transmission of this data
OpenAccess true
Contact derek.muir(at); pdc(at)
Language English
Format Computer file
Discipline Environmental Research
Spatial Coverage (-107.000W, 59.500S, -71.000E, 84.000N)
Temporal Coverage Begin 1989-03-30T00:00:00Z
Temporal Coverage End 9999-12-31T00:00:00Z