FAQ
Frequently Asked Questions
What are cyanobacteria?
Cyanobacteria are photosynthetic microbes capable of producing oxygen. They live in lakes, rivers, and on submerged surfaces, but they are also common in soils. Some species form benthic mats, while others live suspended in the water column.
Why are they so relevant for life on Earth?
They played a crucial role in Earth's history by producing the oxygen required for animal and plant life. They are also the origin of the chloroplast in plants.
What is the difference between planktonic and benthic cyanobacteria?
Planktonic cyanobacteria: suspended in the water, responsible for green or blue green blooms. Benthic cyanobacteria: form mats on stones, rocks, plants, or sediments.
How to recognize a cyanobacterial bloom?
Green, blue green or reddish water coloration. Floating green scums or mats accumulating along shorelines. Dark brown or blackish mats covering stones.
Are all cyanobacteria toxic?
No. Most do not produce toxins, but some species can generate harmful cyanotoxins.
What is a cyanotoxin?
Cyanotoxins are dangerous molecules produced by certain cyanobacteria. The most common forms affect the nervous system (neurotoxins) or the liver (hepatotoxins).
What are the risks for pet animals?
Dogs are particularly at risk. Ingesting toxic benthic mats can lead to paralysis, respiratory failure, or sudden liver damage.
What shall I do if I suspect a toxic bloom?
Do not touch mats or scums. Keep pets away. Report the situation to local authorities or CyanoCommunity coordinators.
What is the Cyano Community project?
It is a citizen science project bringing together citizens, cantonal authorities, and researchers to better monitor and understand cyanobacterial proliferations in Switzerland.
Who can participate to the project?
Anyone interested: citizens, walkers, fishers, or cantonal services. No prior expertise is needed.
How does it work for the participants?
Participants receive training on visual identification of cyanobacteria, safety guidelines, and sampling procedures.
What happens with the data collected in CyanoCommunity?
All collected data are shared with researchers and authorities to track blooms, identify risk areas, and improve prevention.
Why is the participation of the public important for the project?
Benthic cyanobacteria are often discreet and hard to monitor. Citizen involvement expands geographic coverage and improves early detection.
Should floating mats be handled with care?
Yes, they may contain toxins. It is recommended not to handle them and to avoid direct contact.
How can I contribute?
By sharing observations, raising awareness, or attending the training sessions organized by the project.