Biogeosciences
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Articles | Volume 23, issue 21
Articles | Volume 23, issue 21
https://doi.org/10.5194/bg-23-8259-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-23-8259-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 21
Research article
 | 
13 Nov 2026
Research article |  | 13 Nov 2026

Morphological and phylogenic variability of red snow algae in snowpacks along a glacial valley in Alaska

Masato Ono, Kino Kobayashi, Takumi Suzuki, Ryohei Abe, Suzunosuke Usuba, Jun Uetake, and Nozomu Takeuchi

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Short summary
We studied red snow in Alaska to learn why these blooms vary in their microscopic life. By examining snow using microscopes and genetic analysis, we found that the ground beneath, either glacier ice or soil, dictates which algae grow. Algae on ice were mostly round, while those on soil were larger and had diverse shapes. Factors like snow depth mattered more than nutrients. This proves the underlying surface acts as a reservoir for life, shaping how red snow develops.
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