№

Water source/ sample type/data

Taxa of Cyanoprokaryota found

Biomass

[mg/l]

Microcystins

[µg/l for WSs; µg/g d.w. for “biomasses” from NSs]

N [mg/l]

P [mg/l]

N/P

1

Lake Momin Brod

Site of recreational and conservational importance

WS

19/08/2012

Microcystis aeruginosa

M. wesenbergii

[+Aphanocapsa cf. delicatissima; Chroococcus cf. aphanocapsoides;

Merismopedia glauca;

M. tenuissima;

cf. Planktolyngbya sp.]

0.2

0.6

LR - 1

YR - 0.3

LR + YR/LR = 1.3/1 = 1.3

n.a.

n.a.

n.a.

NS

19/08/2012

n.a.

n.a.

LR - 23

YR - 4

LR + YR/LR = 27/23 = 1.17

n.a.

n.a.

n.a.

WS

21/10/2013

Microcystis aeruginosa

M. wesenbergii

Merismopedia tenuissima

cf. Planktolyngbya sp.

3.5

0.2

0.001

0.01

RR- 0.4

YR- 0.4

LR- 1 RR + YR + LR/LR = 1.8/1 = 1.8

5.32

0.07

76

2

Reservoir Stoudena

Drinking water reservoir for the town Pernik

WS

31/07/2012

[unidentified picoplankton]

<0.001

n.d.

2.31

0.07

33

WS18/09/2012

Dolichospermum viquerii

[+unidentified picoplankton]

8.8

n.d.

2.57

0.05

51

WS

12/08/2013

0

0

n.d.

4.67

0.04

117

WS14/10/2013

Microcystis sp.

[unidentified filamentous species (<1 μm]

LR -0.1

6.35

0.05

127

NS14/10/2013

n.a.

n.a.

RR - 2

YR- 0.8

LR- 8.1 l

RR + YR + LR/LR = 10.9/8.1 = 1.35

-

-

-

WS02/10/2014

[Microcystis sp.;

unidentified filamentous species (<1 μm]

n.d.

6.53

0.03

218

3

Reservoir Pchelina

Reservoir for sport, fishing and recreation

WS31/07/2012

Microcystis sp.

cf. Pseudanabaena catenata

akinetes

[Woronichinia fusca]

0.1

0.1

0.1

n.d.

3.45

0.07

49

NS31/07/2012

n.a.

n.a.

trace

-

-

-

WS18/09/2012

cf. Anabaena sp. st.

[Planktothrix sp.;

unidentified picoplankton]

10.4

n.d.

4.21

0.07

60

NS18/09/2012

n.a.

n.a.

trace

WS12/08/2013

0

0

n.d.

4.20

0.09

47

NS12/08/2013

n.a.

n.a.

n.d.

-

-

-