Images

Algal blooms can have different colours and appearances depending on the algal concentration in the water, and dominating species. Follow the links below to images of different algae:

Images of algae.

Cyanobacterial* bloom in the Baltic Proper

- Nodularia spumigena 1

- Nodularia spumigena 2

- Nodularia spumigena, aerial photos

- Nodularia spumigena, different surface accumulations

- Other bloom forming cyanobacteria in the Baltic Proper

Cyanobacterial bloom at the shore

Cyanobacterial bloom in lakes

Reddish-brown algal bloom

Other algal blooms

Microscope images/stereoscopic microscope images of common bloom-forming algal species

Other causes for coloured water

- Pollen accumulations

* Cyanobacteria (also called "blue-green algae") is a group of bacteria that has certain similarities with groups of phytoplankton. Due to their similarities with phytoplankton, they are popularly classified under the group of phytoplankton (microscopic algae).