Figures & data
Figure 1. Map of Bulgaria showing the sampling sites (modified after http://www.ginkgomaps.com and Google Maps, accessed 6 November 2019).
Table 1. Sampling sites and their environmental parameters with types of cyanotoxins found in Bulgarian waterbodies (WBs) (after [Citation26,Citation59]): WBN – name of the water body; IBW – number in the Inventory of Bulgarian Wetlands [Citation60]; SAN – site abbreviation and number; Alt – altitude; WT – water temperature (° C), SD – Secchi depth (m); TTB – total transparent to bottom; CND – conductivity (µS); TDS – total dissolved solids (µg L-1); DO – oxygen concentration (mg L-1); TP – total phosphorus (mg L-1); TN – total nitrogen (mg L-1); CT - cyanotoxins, MCs – microcystins, CYN – cylindrospermopsin, SXT – STXitoxins.
Table 2. Distribution of potential CYN-producing taxa in the studied Bulgarian waterbodies: VA – lake Vaya, MN - reservoir Mandra, PR – reservoir Poroy, DK – lake Durankulak, UZ – lake Uzungeren, SR – reservoir Sinyata Reka; d – dominance (>25% of the biomass); a – abundance (5–25% of the biomass); x – occurrence (<5% of the biomass); r - rare occurrence in single trichomes. Bright grey lines indicate the species which have been reported as CYN producers (for details see the text). Taxa are enlisted in alphabetical order.