In the original article, there was an error. Some contributions were incorrectly acknowledged.
A correction has been made to Acknowledgements:
Chad Wittkop and Sergei Katsev helped to collect water samples. We acknowledge the W. M. Keck Metabolomics Research Laboratory (Office of Biotechnology, Iowa State University) for providing analytical instrumentation and we thank Lucas Showman for his assistance and support. Tracey Stewart at the Roy J. Carver High Resolution Microscopy Facility at Iowa State University facilitated TEM sample preparation and imaging. Šišóka Dúta and Alexander Hall assisted with developing the species epithets. The Minneapolis Parks and Recreation Board supplied permits to work at Brownie Lake. This manuscript was originally part of a dissertation accepted by Iowa State University and edited for publication.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
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