Table 1.
Origin of water samples
| Lake | Country | Latitude (°N) | Longitude (°E) | Surface area (km2) | Maximum depth (m) | Number of samples | Sampling period | Pigmentation of Planktothrix* | Abundance of Planktothrix† | Trophy |
|---|---|---|---|---|---|---|---|---|---|---|
| Intensively sampled lakes | ||||||||||
| Frederiksborg Slotssø | DK | 55°56′ | 12°18′ | 0.2 | 9 | 14 | Jul 03–Sep 04 | Green | A | Eutrophic |
| Irrsee | AT | 47°55′ | 13°18′ | 3.5 | 32 | 20 | Apr 03–Dec 04 | Red | A | Mesotrophic |
| Mondsee | AT | 47°49′ | 13°22′ | 13.8 | 68.3 | 27 | Apr 03 –Dec 04 | Red | A | Mesotrophic |
| Wannsee | DE | 52°25′ | 13°10′ | 2.7 | 10 | 27 | Jun 99–Oct 00 Aug 03–Dec 03 | Green | A | Eutrophic |
| Occasionally sampled lakes | ||||||||||
| Joppe | NL | 52°02′ | 04°50′ | 0.9 | 42 | 12 | Jul 03–Aug 05 | Green | R | Eutrophic |
| Klinkenberger Plas | NL | 52°04′ | 05°02′ | 0.3 | 35 | 4 | May 04–Aug 04 | Red/green | A | Eutrophic |
| Offensee | AT | 47°45′ | 13°50′ | 0.6 | 38 | 4 | Jul 03 Jul 04 | Red | A | Mesotrophic |
| Schwarzensee | AT | 47°45′ | 13°30′ | 0.5 | 54 | 6 | Apr 03–Oct 04 | Red | R | Oligotrophic |
| Slotermeer | NL | 52°09′ | 05°63′ | 12.4 | 6 | 3 | May 04–Oct 04 | Green | A | Eutrophic |
| Steinsfjorden | NO | 60°05′ | 10°19′ | 13.9 | 24 | 8 | Jun 03–Aug 04 | Red/green | A | Mesotrophic |
| Tjeukemeer | NL | 52°05′ | 05°50′ | 20 | 5 | 3 | May 04–Oct 04 | Green | A | Eutrophic |
| Wolfgangsee | AT | 47°45′ | 13°25′ | 12.8 | 113 | 5 | Jun 03–Nov 04 | Red | R | Oligotrophic |
| Wörthersee | AT | 46°37′ | 14°07′ | 19.4 | 85.2 | 4 | Aug 03–Nov 04 | Red | D | Mesotrophic |
| Zegerplas | NL | 52°13′ | 04°67′ | 0.7 | 34 | 7 | Jun 03–Aug 05 | Green | R | Eutrophic |
| Lakes sampled once | ||||||||||
| Albufera Lagoon | ES | 39°20′ | 0°21′W | 21 | 3 | 1 | Aug 04 | Green | A | Eutrophic |
| Hallwilersee | CH | 47°17′ | 08°12′ | 10 | 48 | 1 | Sep 04 | Red | D | Mesotrophic |
| Havel (Potsdam) | DE | 52°45′ | 12°10′ | - | 4 | 1 | Sep 04 | Green | A | Eutrophic |
| Lago Maggiore | IT | 45°28′ | 08°40′ | 212 | 372 | 1 | Sep 04 | Red | A | Mesotrophic |
| Miedwie | PL | 53°17′ | 14°54′ | 35.5 | 44 | 1 | Sep 04 | Red | A | Mesotrophic |
| Pozillo, Sicily | IT | 37°39′ | 14°35′ | 7.7 | 55 | 1 | Jan 06 | Red | D | Eutrophic |
| Prizzi, Sicily | IT | 37°43′ | 13°24′ | 1.3 | 44 | 1 | Feb 06 | Red | D | Eutrophic |
| Sapanca | TR | 40°69′ | 30°27′ | 46.8 | 55 | 1 | Sep 04 | Red | A | Mesotrophic |
| Talsperre Weida | DE | 50°42′ | 11°58′ | 0.9 | 22.5 | 1 | Sep 04 | Red | A | Mesotrophic |
*
Samples were grouped according to the visual inspection in the microscope: (1) red-pigmented; (2) green-pigmented; (3) red/green-pigmented.
†
A, abundant (<50%); R, rare (<10%); D, dominant (>50% in numbers according to the inspection in the microscope).