Finnish Environment Institute | Suomen ympäristökeskus | Finlands miljöcentral

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Summary reviews

Summary of algal bloom monitoring 2017: Plenty of cyanobacteria in sea areas during July-August, but fewer observations of cyanobacteria than usual in lakes 2017-08-31
The algal situation in early summer was calm and cyanobacteria started to become more abundant only in July. In sea areas, cyanobacteria occurred abundantly especially in the northern Baltic proper and the western Gulf of Finland, but winds and cool seawater prevented the formation of conspicuous surface accumulations. In lakes, on average fewer observations of cyanobacteria than usual were made, with the exception of early July and late August.
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Incidence of cyanobacteria started early this summer, but towards the end of summer abundant cyanobacteria occurrences halted 2016-09-01
Cyanobacteria started to increase in abundance early this summer, but during late summer less cyanobacteria surface blooms were observed than normally. In the Finnish southwestern open sea areas cyanobacteria were abundant throughout the summer, but mixed in the water column, and long-lasting surface blooms did not develop. In lakes, cyanobacteria were abundant only occasionally during the summer, but in August exceptionally little cyanobacteria was observed.
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