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. 2019 May 10;10:1019. doi: 10.3389/fmicb.2019.01019

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Copyright © 2019 Weisleitner, Perras, Moissl-Eichinger, Andersen and Sattler.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Sampling sites at Lake Untersee Oasis. The image was captured by the Landsat 8 satellite (download via LIMA database from United States Geographical Survey) and color bands 2, 3, 4 were applied to the high-resolution band 8. Lake Untersee is dammed in the north by the Anuchin Glacier. Black dots (cryoconite holes), blue squares (lake sediments), blue triangle (benthic microbial mats), black circles (terrestrial samples), red lines (glacier ice transect, AT1-AT2-AT3 from left to right), red circles (white ice in lake ice cover and lake ice), and a white wave symbol (pelagic samples) indicate the sampling sites. Meteorological stations are indicated by green stars. The yellow ellipse marks the campsite. Overlapping symbols indicate that the sampling site for different sample types was identical.