Biogeosciences
Biogeosciences
BG
Articles | Volume 22, issue 5
Articles | Volume 22, issue 5
https://doi.org/10.5194/bg-22-1369-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-1369-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 5
Research article
 | 
12 Mar 2025
Research article |  | 12 Mar 2025

Shifts in organic matter character and microbial assemblages from glacial headwaters to downstream reaches in the Canadian Rocky Mountains

Hayley F. Drapeau, Suzanne E. Tank, Maria A. Cavaco, Jessica A. Serbu, Vincent L. St. Louis, and Maya P. Bhatia

Supplement

https://doi.org/10.5194/bg-22-1369-2025-supplement

Data sets

Physicochemical, particulate matter, temperature, and hydrological datasets collected from climate-threatened glacial river headwaters on the eastern slopes of the Canadian Rocky Mountains (2019-2021) Jessica Serbu et al. https://doi.org/10.1594/PANGAEA.963863

Organic carbon concentration, absorbance and fluorescent characteristics, and isotopic composition of river water sourced from four glacially-fed rivers in the Canadian Rocky Mountains (2019-2021) Hayley F. Drapeau et al. https://doi.org/10.1594/PANGAEA.975984

Download
Short summary
From glacial headwaters to 100 km downstream, we found clear organic matter gradients in Canadian Rocky Mountain rivers. In contrast, microbial communities exhibited overall cohesion, indicating that species dispersal may be an over-riding control on community dynamics in these connected rivers. Identification of glacial-specific microbes suggests that glaciers seed headwater microbial assemblages; these findings show the importance of glacial waters and microbiomes in changing mountain systems.
Read more
Share
Altmetrics
Final-revised paper
Preprint