Microbial growth under humic-free conditions in a supraglacial stream system on the Cotton Glacier, Antarctica

• Published in: Environmental Research Letters
• Main Authors: Christine M Foreman, Rose M Cory, Cindy E Morris, Michael D SanClements, Heidi J Smith, John T Lisle, Penney L Miller, Yu-Ping Chin, Diane M McKnight
• Format: Article in Journal/Newspaper
• Language: English
• Published: IOP Publishing 2013
• Subjects: dissolved organic matter (DOM); extracellular emission matrices (EEMs); ice nucleation activity; fluorescence; Environmental technology. Sanitary engineering; TD1-1066; Environmental sciences; GE1-350; Science; Q; Physics; QC1-999; Austral; Cotton Glacier; Antarc*; Antarctica
• Online Access: https://doi.org/10.1088/1748-9326/8/3/035022; https://doaj.org/article/29340164ef524f8f85ff6f7fcd705e8b

During the austral summers of 2004 and 2009, we sampled a supraglacial stream on the Cotton Glacier, Antarctica. The stream dissolved organic matter (DOM) was low (44–48 μM C) and lacked detectable humic fluorescence signatures. Analysis of the excitation emissions matrices (EEMs) indicated that ami...