Title: Physical characteristics and chemical measurements of northern lakes in western Canada
Citation: Winder, Johanna; Braga, Lucas; Kuhn, McKenzie et al. (2023). Physical characteristics and chemical measurements of northern lakes in western Canada [Dataset]. Dryad. https://doi.org/10.5061/dryad.sj3tx968t
Study Site: Boreal western Canada
Purpose: Northern lakes disproportionately influence the global carbon cycle, and may do so more in the future depending on how their microbial communities respond to climate warming. Microbial communities can change because of the direct effects of climate warming on their metabolism and the indirect effects of climate warming on groundwater connectivity from thawing of surrounding permafrost, especially at lower landscape positions. Here we used shotgun metagenomics to compare the taxonomic and functional gene composition of sediment microbes in 19 peatland lakes across a 1600-km permafrost transect in boreal western Canada.
Abstract: This table contains seasonal and daily field and laboratory data for samples collected from 19 lakes in Alberta and the Northwest Territories between 2018 and 2019. General information includes lake name, permafrost region, location coordinates, size and depth. Meteorological information includes mean annual precipitation, mean annual air temperature, precipitation and pressure. Chemical measurements are the average of measurements taken over the entire 2018–19 sampling period. Daily measurements for specific conductivity (COND) are also reported. Chemical parameters measured were: water temperature, dissolved oxygen, specific conductivity, pH, dissolved organic carbon, total nitrogen, ions (Na, Mg, K, Ca, Mn, Fe, Cu, Zn, P, S, NH4, NO3 Cl, PO4, SO4), chlorophyll A. Further information regarding units and descriptions of each parameter can be found under the “Sample Information” tab in the spreadsheet.
Supplemental Information Summary: The study region encompassed the lands of the Metis, Dene Tha’, Woodland Cree, Big Stone Cree in Alberta and the lands of the Inuvialuit Settlement Region, Gwich'in Settlement Area and the Dehcho of the Northwest Territories.
Research:
Further Info: Kuhn, McKenzie A. et al. (2021), Opposing Effects of Climate and Permafrost Thaw on CH4 and CO2 Emissions From Northern Lakes, AGU Advances, Journal-article, https://doi.org/10.1029/2021av000515
Thompson, Lauren M. et al. (2023), Controls on methylmercury concentrations in lakes and streams of peatland‐rich catchments along a 1700 km permafrost gradient, Limnology and Oceanography, Journal-article, https://doi.org/10.1002/lno.12296
Status: Complete
Keywords:
meteorology,
hydrology,
dissolved organic carbon,
metals,
nitrogen,
Geographical coordinates: North: 67.48, South: 55.98 East: -115.19 West: -134.86
Bounding Temporal Extent: Start Date: 2018-05-01, End
Date: 2019-08-31
