NSF award 2536128 · University of California-Davis

Metabolic Adaptations of Benthic Diatoms to Seasonal Light and Dissolved Oxygen Variations in Lake Fryxell, McMurdo Dry Valleys, Antarctica

Final report due

29 December 2027

in 437 days · The award ends on 31 August 2027.

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Decide about an extension3 May 2027in 197 days
award ending 2027-08-31 · Research.gov
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Extension request17 Jul 2027in 272 days
award ending 2027-08-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Aug 2027in 307 days
award ending 2027-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2027in 437 days
award ending 2027-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2027in 437 days
award ending 2027-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2027in 437 days
award ending 2027-08-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 August 2027.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2027.

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Award card

Award number: 2536128
Period of support: 1 Sep 2026 – 31 Aug 2027
Amount: $189,046
Awardee: University of California-Davis, Davis, CA
Program: ANT Organisms & Ecosystems
Directorate: GEO

Abstract

In the McMurdo Dry Valleys, Antarctica, the permanently ice-covered lakes are unusual aquatic environments, home to unique communities of microbes, including photosynthetic diatoms. Diatoms are abundant in the microbial mats that grow on the floors of some of these lakes. In Lake Fryxell specific diatom species and their abundances vary with depth in the lake. The deepest ones get almost no light, even in summer,…

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