Fig. 1.

A. Chao1 curves to depict the genetic diversity of V. cholerae and the depth of sampling at three habitats based on the used OTU definition (sequence type). Blue line: reed-stand, black line: open water and green line: intermediate habitat. For the open water and intermediate habitat, 100 V. cholerae strains were isolated on a single day in July 2012, for the reed stand habitat, additional 173 strains from seasonal sampling (2011 + 2012) were analyzed. B. Venn diagram of the number of sequence types based on the entire dataset of samples of the lake Neusiedler See. The three circles indicate the habitats and the numbers correspond to the quantity of unique or shared sequence types. Total numbers of sequence types for each habitat are noted in brackets.