Microbial Mat Communities along an Oxygen Gradient in a Perennially Ice-Covered Antarctic Lake

• Published in: Applied and Environmental Microbiology
• Main Authors: Jungblut, Anne D., Hawes, Ian, Mackey, Tyler J., Krusor, Megan, Doran, Peter T., Sumner, Dawn Y., Eisen, Jonathan A., Hillman, Colin, Goroncy, Alexander K.
• Other Authors: Stams, A. J., NSF, NASA
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Society for Microbiology 2016
• Subjects: Antarctic; Fryxell; Lake Fryxell; McMurdo Dry Valleys; Antarc*; Antarctica
• Online Access: http://dx.doi.org/10.1128/aem.02699-15; https://journals.asm.org/doi/pdf/10.1128/AEM.02699-15

ABSTRACT Lake Fryxell is a perennially ice-covered lake in the McMurdo Dry Valleys, Antarctica, with a sharp oxycline in a water column that is density stabilized by a gradient in salt concentration. Dissolved oxygen falls from 20 mg liter −1 to undetectable over one vertical meter from 8.9- to 9.9-...