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Table 1 Origin of field samples analyzed by the TaqMan Genotyping Assay (SNP) for allelic discrimination of the mcyT gene both as a remainder of the mcy gene cluster (nontoxic strains) and as part of the mcy gene cluster (toxic strains) [4, 12].

From: Stability of toxin gene proportion in red-pigmented populations of the cyanobacterium Planktothrix during 29 years of re-oligotrophication of Lake Zürich

Lake

Country

Number of samples

Lake area

(km2)

Zmean

(m)

Zmax

(m)

Sampling period

Red-pigmented populationsa

     

Lake Zürich

CH

51

68

52

136

1977-2008

Irrsee

AT

4

3.5

15

32

Sep-Dec 2003

Mondsee

AT

22

16

36

68

Apr 2003-Dec 2004

Green-pigmented populations

     

Albufera Lagoon

ES

1

21

1

3

Aug 2004

Frederiksborg Slotssø

DK

8

0.2

3

9

Jul-Oct 2003

Havel (Potsdam)

DE

1

-

3

4

Sep 2004

Slotermeer

NL

1

12.4

1.2

6

May 2004

Tjeukemeer

NL

1

20

2

5

Oct 2004

Zeegerplas

NL

3

0.7

18

34

Aug, Sep and Oct 2004

Wannsee

DE

6

2.7

6

9

Feb-Mar and May-Aug 2000

Mixed-pigmented populations

     

Klinkenberger Plas

NL

3

0.3

-

30

May, Jul and Aug 2004

Steinsfjorden

NO

6

13.9

10

24

Jul-Sep 2003, Jul 2004

  1. aPigmentation type was determined by visual inspection in the microscope. AT: Austria; CH: Switzerland; DE: Germany; DK: Denmark; ES: Spain; NL: Netherlands; NO: Norway.