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. 2020 Jun 15;65(10):2460–2484. doi: 10.1002/lno.11464

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© 2020 The Authors. Limnology and Oceanography published by Wiley Periodicals, Inc. on behalf of Association for the Sciences of Limnology and Oceanography.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Particular organic carbon (POC) to chlorophyll ratios for the epilimnion and deep chlorophyll maximum (DCM) by lake, based on POC and extracted chlorophyll concentrations at master stations (Fig. 1) from 2000 to 2014. Boxes show the first and third quartiles with the median (line), whiskers extend to most extreme data point within 1.5 times the interquartile range from the box, and dots show outliers. Sample size is noted for samples from the epilimnion and DCM (in parentheses). Letters indicate significantly different groups based on pairwise comparisons after a significant Kruskal–Wallis test (Giraudoux 2018).