Learn more about cyanobacteria

Discover the little-known world of cyanobacteria and their effect on the ecosystem!

Learn more about Cyanobacteria!

What are cyanobacteria?

Cyanobacteria are micro-organisms that develop mainly in terrestrial and aquatic environments.

Two types of bacteria can be observed:

Planktonic cyanobacteria

They remain suspended in the water column because they are able to float easily thanks to intracellular gas vesicles.


Benthic cyanobacteria

They develop on the bottom of waterways by clinging to concrete blocks, pebbles, sand, various nutrients or on the surface of aquatic plants.


Also known as cyanophyceae or blue-green algae, they are photosynthetic bacteria. They need the sun to synthesize their organic molecules, like aquatic plants. Phycocyanins or chlorophyll are pigments that allow them to capture this light and thus ensure their growth.

The life cycle of the cyanobacteria?

Cyanobacterial life cycle

Where do they develop?

Cyanobacteria, like plants, need light, heat and nutrients to grow regularly. When these factors are present, we observe a proliferation mainly in summer and early fall. In some cases, we can observe early activity during spring, in very particular conditions.

On the French territory, this proliferation is mainly observed between May and October, in calm and nutrient-rich waters. As for example, in certain rivers, lakes or ponds. There are rare cases of proliferation throughout the year or more specifically in winter. But this is a case by case situation depending on the type of land and its surroundings.

What are the factors of bacterial development?

3 factors favor the strong development of the cyanobacteria which are: the tributaries, the weather and the water body itself. If all the conditions are met, then the cyanobacteria has enough elements to develop rapidly.

Cyanobacteria development factors

How to spot contaminated water?


The proliferation of cyanobacteria causes the water to turn red, green or blue depending on the species of bacteria. On the other hand, you may also notice an accumulation of "blooms" that look like water flowers or broccoli soup (Which we strongly advise you not to eat). They are often green or turquoise.


Most of the time, they proliferate in stagnant water bodies or rivers, which generates a high concentration of cyanobacteria. There is therefore a concentration of nauseating odors such as the smell of stagnant water, swamp, or even mold.

The consequences of cyanotoxins on the ecosystem

How to protect yourself against harmful effects?

When you have spotted contaminated water, you can adopt some simple gestures to protect yourself against the harmful effects.

Whether for humans or pets, do not drink or consume elements that come from contaminated water (fishing, water sports…)

If hypothetically there has been contact, it is recommended to shower and wash the equipment that has come into contact with cyanobacteria.

In general, you should prefer the marked swimming areas and limit swimming in shallow and stagnant waters where you can observe numerous algae and/or abundant foam.

How to prevent cyanobacteria proliferation?

This is precisely where our solution finds its usefulness: Predicting the evolution of cyanobacteria!

Floveo was created to facilitate the management of water bodies and rivers likely to be impacted by this cyanobacteria problem.

Our solution Floveo, thanks to the probes placed in a given aquatic environment, can analyze and send back important data to our collection station on the evolution of the surrounding ecosystem. Thanks to these data, transformed into indicators in the dashboard on the Floveo platform, you will be able to interpret the results in real time! 

Moreover, our prediction module working with an artificial intelligence, will allow you to describe the future evolution of cyanobacteria. You will be able to predict the possible problems that these bacteria may cause and take the necessary decisions as soon as possible.

One of the main advantages of this solution is to be able to describe the future evolution of the cyanobacteria, taking into account all the elements that are essential for its proliferation.