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Title: Stygofauna enhance prokaryotic transport in groundwater ecosystems

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep32738· OSTI ID:1378369
 [1];  [1];  [1];  [2];  [1];  [3];  [1];  [1]
  1. Flinders Univ., Adelaide, SA (Australia)
  2. Flinders Univ., Adelaide, SA (Australia); Arcadia Univ., Glenside, PA (United States)
  3. Flinders Univ., Adelaide, SA (Australia); South Australian Museum, Adelaide, SA (Australia)

More than 97% of the world’s freshwater reserves are found in aquifers, making groundwater one of the most important resources on the planet. Prokaryotic communities in groundwater underpin the turnover of energy and matter while also maintaining groundwater purity. Thus, knowledge of microbial transport in the subsurface is crucial for maintaining groundwater health. Here, we describe for the first time the importance of stygofauna as vectors for prokaryotes. The “hitch-hiking” prokaryotes associated with stygofauna may be up to 5 orders of magnitude higher in abundance and transported up to 34× faster than bulk groundwater flow. We also demonstrate that prokaryotic diversity associated with stygofauna may be higher than that of the surrounding groundwater. Stygofauna are a newly recognized prokaryotic niche in groundwater ecosystems that have the potential to transport remediating, water purifying and pathogenic prokaryotes. Furthermore, stygofauna may influence ecosystem dynamics and health at a microbial level, and at a larger scale could be a new source of prokaryotic diversity in groundwater ecosystems.

Research Organization:
Arcadia Univ., Glenside, PA (United States). Dept. of Chemistry and Physics
Sponsoring Organization:
USDOE
OSTI ID:
1378369
Journal Information:
Scientific Reports, Vol. 6, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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