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Structure And Functional Potential Of Microbial Communities In Subglacial Lake Whillans And At The Ross Ice Shelf Grounding Zone, West Antarctica, Amanda Marie Achberger Jan 2016

Structure And Functional Potential Of Microbial Communities In Subglacial Lake Whillans And At The Ross Ice Shelf Grounding Zone, West Antarctica, Amanda Marie Achberger

LSU Doctoral Dissertations

The abundance of liquid water found beneath the Antarctic Ice Sheet (AIS) is thought to provide a suitable habitat for microbial life. However, the thick ice sheet has posed a significant obstacle to accessing this isolated system and as a consequence, little data exists to infer ecosystem processes occurring beneath ice sheets. To address this deficit, data generated through 16S rRNA (genes and molecules) and metagenomic sequencing was used to evaluate the diversity and potential metabolic function of communities inhabiting Subglacial Lake Whillans (SLW) and the ocean basin into which it discharges (Whillans Ice Stream grounding zone; WIS-GZ). The analysis …