Archaeal dominance in the mesopelagic zone of the Pacific Ocean

  title={Archaeal dominance in the mesopelagic zone of the Pacific Ocean},
  author={Markus B. Karner and Edward F. Delong and David M. Karl},
The ocean's interior is Earth's largest biome. Recently, cultivation-independent ribosomal RNA gene surveys have indicated a potential importance for archaea in the subsurface ocean. But quantitative data on the abundance of specific microbial groups in the deep sea are lacking. Here we report a year-long study of the abundance of two specific archaeal groups (pelagic euryarchaeota and pelagic crenarchaeota) in one of the ocean's largest habitats. Monthly sampling was conducted throughout the… 
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