Abstract
A survey of the distribution of cyanobacterial blooms in the southern part of Belgium, in Luxembourg as well as in bordering northeastern France was carried out for 4 years (1997, 1999-2001). In the 64 cyanobacterial bloom samples collected, Microcystis as well as Planktothrix were the most frequently encountered dominant bloom formers, followed by Anabaena, Woronichinia, and Aphanizomenon. The relative frequency of (co-)dominant genera was highly correlated to the geology of the catchments. Microcystins were found in 53% of the analysed blooms and their presence was mainly assigned to Microcystis dominance. The highest microcystin concentration of 2231 μg g-1 seston DW was recorded in a sample dominated by Woronichinia naegeliana. Among the 6 investigated microcystin variants, MC-LR was the most frequently detected whereas MC-LY was never revealed.
Original language | English |
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Pages (from-to) | 99-117 |
Number of pages | 19 |
Journal | Hydrobiologia |
Volume | 551 |
Issue number | 1 |
DOIs | |
Publication status | Published - Nov 2005 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Belgium
- Blooms
- Cyanobacteria
- Ecology
- Luxembourg
- Microcystins