| № | Water source/sample type | Sampling date | Taxa of Cyanoprokaryota found | Biomass (mg/l) | Microcystins |
| 1 | Stoudena | Drinking water reservoir for the town Pernik | |||
|
| water | 03/08/2011 | Unidentified picoplankton | 0.01 | n.d. |
|
| water | 28/09/2011 | Raphidiopsismediterranea | <0.001 | −LR 0.1 (µg/l) |
| 2 | Dourankoulak | Lake for sport, fishing and recreation | |||
|
| water | 29/07/2011 | Leptolyngbya foveolarum Merismopedia hyalina Merismopedia tenuissima Microcystis wesenbergii Pseudanabaena mucicola Chroococcus sp. Unidentified colonial coccal cells | 0.011 0.008 0.002 6.873 0.118 <0.001 0.001 | −RR 12.7µg/l −YR 5.5µg/l −LR 8.3µg/l (RR + YR + LR)/LR = 26.5/8.3 |
|
| biomass | 29/07/2011 |
|
| −RR 22.1 µg/gd.w. −YR-trace −LR 27.5 µg/gd.w. (RR + LR)/LR = 49.6/27.5. |
| 3 | Pchelina | Reservoir for sport, fishing and recreation | |||
|
| water | 03/08/2011 | Aphanizomenonsp. juv. Unidentified non-heterocystous filaments | 0.097 0.007 | −RR 0.5 µg/l |
|
| biomass | 03/08/2011 |
|
| −RR 11.4 µg/gd.w. |
|
| water | 28/09/2011 | Aphanizomenonsp. ster. Planktolyngbyalimnetica | 0.772 <0.001 | n.d. |
|
| biomass | 28/09/2011 |
|
| n.d. |
| 4 | Vaya | Lake for sport, fishing and recreation | |||
|
| water | 03/08/2011 | Anabaenopsiselenkinii Aphanizomenongracile Cylindrospermopsisraciborskii Oscillatoriacf. simplicissima Oscillatoriasp. Unidentifiednon- heterocystousfilaments | 2.919 8.041 9.294
<0.001 53.274 0.318 | n.d. |
|
| biomass | 03/08/2011 |
|
| n.d. |
| 5 | Bistritsa | Reservoir for sport, fishing and recreation | |||
|
| water | 03/08/2011 | Microcystiswesenbergii | <0.001 | n.d. |
|
| water | 28/09/2011 | Anabaena spp. Aphanothece spp. | 0.1 <0.001 |
|
|
| biomass | 28/09/2011 |
|
| n.d. |