An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

Cyanobacteria / Blue-green algae (Cyanobacteria images)
Marine species

Cyanophyceae (Class) > Nostocophycideae (Subclass) > Nostocales (Order) > Rivulariaceae (Family)

Calothrix sp. (Skilly, 16.08.18)
- found on Corallina officinalis, Coral Weed.

Calothrix sp. possibly C. parasitica ? (Skilly, 16.08.18)
- found on Nemalion helminthoides, Sea Noodles.

Rivularia atra Roth ex Bornet & Flahault, 1886
- A cyanobacterium

Rivularia biasolettiana Meneghini ex Bornet & Flahault, 1886 ? - A cyanobacterium
Rivularia bullata Berkeley ex Bornet & Flahault, 1886
- A cyanobacterium

Rivularia sp. - Found growing on rock in an uppershore rockpool. Skilly, nr. Newlyn, 16.08.18.

Cyanophyceae (Class) > Oscillatoriophycideae (Subclass) > Oscillatoriales (Order) >Oscillatoriaceae (Family)

Oscillatoria tenuis C.Agardh ex Gomont
- A filamentous cyanobacterium

Oscillatoria type species near
Venton Farm, Marazion. 22.08.16.

Cyanophyceae (Class) > Synechococcophycideae (Subclass) > Pseudanabaenales (Order) > Pseudanabaenaceae (Family) > Spirulinoideae (Subfamily)

Spirulina subsalsa Oerstedt ex Gomont, 1892
- A spiral cyanobacterium

Terrestrial / coastal species

Cyanophyceae (Class) > Nostocophycideae (Subclass) > Nostocales (Order) > Nostocaceae (Family)

Nostoc commune Vaucher ex.Bornet & Flahault, 1888
- Witches' Butter

Cyanobacteria to identify
Cyanobacteria from near high tide level
near river at Newlyn 27.08.18.

Marine Cyanobacterium Cyanobacteria Images UK