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. 2017 Aug 7;8:1481. doi: 10.3389/fmicb.2017.01481

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Copyright © 2017 Terashima, Umezawa, Mori, Kojima and Fukui.

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) or licensor 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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(A) Sampling sites of Mount Asahidake. (B) Sampling site A snowfield. (C) Sampling site B snowfield. (D) Red snow surface of sampling site A snowfield. (E) Removing a core from the snow (sample red snow B2) shows coloration from the algae in the top 3 cm of the snow. (F) Melted green and red snow samples from B2 sampling. (Map generated by © Mapbox, © OpenStreetMap, modified and annotated).