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. 2018 Feb 24;10(2):92. doi: 10.3390/toxins10020092

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Cyanobacterial cell densities at each of the sampling locations (sites A through I are shown as panels A through I). Colors depict the six most abundant genera, and less abundant taxa are grouped as “Other”. Long-term sites A through C were sampled from January 2011 to December 2016. D, F, H and I were monitored from October 2014 to June 2016, while monitoring at E and G continued through December 2016. Vertical dashed lines separate years. Note, there are differing scales on the y-axes for A, C and E.