Articles | Volume 22, issue 15
https://doi.org/10.5194/bg-22-3821-2025
https://doi.org/10.5194/bg-22-3821-2025
Research article
 | 
07 Aug 2025
Research article |  | 07 Aug 2025

Lake anoxia, primary production, and algal community shifts in response to rapid climate changes during the Late Glacial

Stan J. Schouten, Noé R. M. M. Schmidhauser, Martin Grosjean, Andrea Lami, Petra Boltshauser-Kaltenrieder, Jacqueline F. N. van Leeuwen, Hendrik Vogel, and Petra Zahajská

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AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish subject to minor revisions (review by editor) (20 Apr 2025) by Petr Kuneš
AR by Stan Schouten on behalf of the Authors (23 Apr 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (11 May 2025) by Petr Kuneš
AR by Stan Schouten on behalf of the Authors (19 May 2025)  Author's response   Manuscript 
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Short summary
Climate warming speeds up lake eutrophication, creating “dead zones” where aquatic life suffocates due to oxygen depletion. The sediments of Amsoldingersee, a Swiss lake, revealed how climate shifts impacted the lake around 10 000–18 000 years ago. (1) Algal composition differed between both cold and warm periods. (2) Nutrient additions from dust controlled algal growth more than temperature. (3) Cold periods with ice cover led to oxygen depletion. (4) Algal communities recovered after anoxic phases.
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