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D51 10.5885/45600CE-C0960664FE8F4038 Published
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Fossil diatom abundance in a lake sediment core, Bylot Island, Nunavut, Canada

Reinhard Pienitz1,3,Frédéric Bouchard2,3, Vincent Boucher1,3
1Département de géographie, Université Laval
2Géosciences Paris Sud (GEOPS), Université Paris Saclay,
3Centre d'études nordiques (CEN)

Abstract

This dataset presents all the fossil diatom species identified in a 109 cm-long lake sediment core from a thermokarst lake in Bylot Island, Nunavut, Canada. The core was collected in June 2015 at « Gull Lake » (also named BYL-66 in other publications) from the still-present ice cover with a 7 cm-diameter percussion corer (Aquatic Research Instruments). Slides were prepared at the Aquatic Paleoecology Laboratory of CEN for 60 samples; each cm for the upper 12 cm of the core, and then each 2 cm towards core bottom. For each sample, about 400 diatom valves were counted along transects using a light microscope at a 1000x magnification.

Data citation

Pienitz, R.,Bouchard, F., Boucher, V. 2020. Fossil diatom abundance in a lake sediment core, Bylot Island, Nunavut, Canada, v. 1.0. Nordicana D51, doi: 10.5885/45600CE-C0960664FE8F4038.

Location map

Key references

  • Bouchard, F., R. Pienitz, J. D. Ortiz, P. Francus & I. Laurion, 2013. Palaeolimnological conditions inferred from fossil diatom assemblages and derivative spectral properties of sediments in thermokarst ponds of subarctic Quebec, Canada. Boreas, 42: 575-595.
    DOI: 10.1111/bor.12000
  • Bouchard, F., Fortier, D., Paquette, M., Boucher, V., Pienitz, R., Laurion, I. Thermokarst lake development in syngenetic ice-wedge polygon terrain in the Eastern Canadian Arctic (Bylot Island, Nunavut). The Cryosphere Discussions.
    DOI: 10.5194/tc-2019-248

Contributors

Fortier, Daniel Département de géographie, Université de Montréal & Centre d'études nordiques (CEN) Laurion, Isabelle Centre Eau Terre Environnement, Institut national de la recherche scientifique (INRS-ETE) & Centre d'études nordiques (CEN)

Acknowledgements

Audrey Veillette (U. Montréal), Vilmantas Preskienis (INRS-ETE) and Maxime Tremblay (UQTR) collected the sediment core in the field. Vincent Boucher (U. Laval) conducted diatom species counts in the laboratory.

Version history

You can request an older version by contacting nordicana@cen.ulaval.ca

Measurement sites

Site Latitude Longitude Altitude (m)
Site BYL-66 (Gull Lake) 73.154773 -79.968448 More info

Supplementary material

Download

Data available for download are in ZIP format. Please properly cite the data when using it.

GullLake_Diatoms_Data.txt Get file
File: ds_000594382.zip Size: 19.36 KB
Sites
Site BYL-66 (Gull Lake)
Data
Name of diatom species 06/2015 – 06/2015