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Fig. 4

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Box plots of bacterial number (A), the rate of inorganic carbon emission (B) and sulfate reduction (C) in the bottom sediments of Lake Gulbinas in August during the transitional (Tr − 2001–2002) and urban (Ur1–2007 and Ur2–2014–2015) periods. Asterisks indicate significant differences in microbial parameters between study periods, urban and transition (Tukey HSD test, p ≤ 0.05).

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