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Nordicana
D129 / DOI :
10.5885/45867CE-E92D191DAAE14485
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Limnological and metabolic data of 35 lakes in the Greiner Lake watershed, Nunavut, Canada
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Paola Ayala Borda1,2,
Matthew J. Bogard3,
Milla Rautio1,2
1Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada
2Centre d’Études Nordiques, Université Laval, Québec, Canada
3University of Lethbridge, Alberta, Canada
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Abstract
Properties of Arctic lakes vary depending on the type of soil, major sources of water, size of the lake, elevation and climatic conditions among others. We studied 35 lakes of different sizes and positions (headwater, midstream and downstream lakes) across the Greiner Lake watershed (69°10'35,72" N, 104°55'54,87" W) on Victoria Island, Nunavut, in August 2018 and 2019. We show limnological and metabolic data for nutrients (total nitrogen and phosphorus), dissolved organic and inorganic carbon, dissolved organic carbon characterization (SUVA254, a320, S289, FDOM), water and dissolved oxygen isotopes (d2H-H2O, d18O-H2O, d18O-O2), light (Kd, irradiance), bacterial production, primary production, respiration, and net ecosystem production for this set of lakes. These variables help understand the current state of the lakes in this watershed that is of great importance for the local Ekaluktutiak Inuit community of Cambridge Bay.
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Ayala Borda, P., Bogard. M.J.,Rautio, M. 2024. Limnological and metabolic data of 35 lakes in the Greiner Lake watershed, Nunavut, Canada, v. 1.0 (2018-2022). Nordicana D129, doi: 10.5885/45867CE-E92D191DAAE14485.
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This research is a contribution to the projects “Functional, structural and biodiversity studies of Arctic freshwater watersheds: validating protocols for monitoring and cumulative impacts assessment” and, “Health of Arctic freshwater ecosystems, and Changing nutrients and food web health in northern lakes and rivers”, supported by the Natural Sciences and Engineering Research Council of Canada (NSERC), Polar Knowledge Canada, and ArcticNet, with logistic support from the Polar Continental Shelf Program (PCSP). P. Ayala-Borda was supported by the EcoLac NSERC-CREATE Program and Fonds de recherche du Québec – Nature et technologies (FRQNT). M. Bogard was financially supported by the Canada Research Chairs Program. We thank Pénélope Blackburn-Desbiens and Mathieu Archambault for the help in the field and lab. We thank Elise Imbeau, Gabriel Ferland and Frédéric Bouchard for their help in taking gas samples during winter and spring. Finally, we thank Juliette Lapeyre for the connectivity measurements and the satellite image processing.
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Version 1.0
(2018-2022) - Updated January 26, 2024
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