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Global Change Master Directory (GCMD)
Microbial Community Assembly in Coastal Waters of the Western Antarctic Peninsula
Entry ID: USAP-1141993

Abstract: The Western Antarctic Peninsula (WAP) has experienced unprecedented warming and shifts in sea ice cover over the past fifty years. How these changes impact marine microbial communities, and subsequently how these shifts in the biota may affect the carbon cycle in surface waters is unknown. This work will examine how these ecosystem-level changes affect microbial community structure and function. This research will use modern metagenomic and transcriptomic approaches to test the hypothesis that the introduction of organic matter from spring phytoplankton blooms drives turnover in microbial communities. This research will characterize patterns in bacterial and archaeal succession during the transition from the austral winter at two long-term monitoring sites: Palmer Station in the north and Rothera Station in the south. This project will also include microcosm incubations to directly assess the effects of additions of organic carbon and melted sea ice on microbial community structure and function. The results of this work will provide a broader understanding of the roles of both rare and abundant microorganisms in carbon cycling within the WAP region, and how these communities may shift in structure and function in response to climate change. Results will be widely disseminated through publications as well as through presentations at national and international meetings. The research will provide training opportunities for both graduate and undergraduate students and will enhance international collaborations with the British Antarctic Survey.

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Description: NSF Award Abstract #1141993

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Description: Seasonal Succession of Bacterial Communities in Coastal Waters of the Western Antarctic Peninsula

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Description: GenBank Sequence Read Archive (SRA) original data submitted.

Geographic Coverage
 N: -70.0 S: -79.0  E: -53.0  W: -60.0

Data Set Citation
Version: Not provided

Temporal Coverage
Start Date: 2012-09-01
Stop Date: 2015-08-31

Location Keywords
CONTINENT > ANTARCTICA > West Antarctic Peninsula

Science Keywords

NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]

Data Set Progress

Data Center
United States Antarctic Program Data Center    [Information]
Data Center URL:

Data Center Personnel
Email: info at
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA

Email: at
Contact Address:
University of Maine - Darling Marine Center
City: Walpole
Province or State: ME
Postal Code: 04573
Country: US

Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2018-11-12