APHOTOMARINE

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.

Scroll down and rollover titles to change screen image or click on title to view image.

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium sp. 1

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium sp. 2

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium sp. 3

Parasitic red algae
Gelidiocolax margaritoides
- with 0.1mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- with 0.01mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- cross section with 0.01mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- cross section of three specimens of the parasite 1

Parasitic red algae
Gelidiocolax margaritoides
- cross sction close-up 1

Parasitic red algae
Gelidiocolax margaritoides
- tetraspores with 0.01mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- tetraspores with 0.01mm division rule 2

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host species 1

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host species 2

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host species with 1.0mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- habitat / location 1

Numerous specimens of this red parasitic algae were found on pieces of Gelidium sp. at Portreath, Cornwall, 21.04.18.

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium pulchellum 1

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium pulchellum 2

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium pulchellum 3

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium pulchellum 4

Parasitic red algae
Gelidiocolax margaritoides
- on Gelidium pulchellum 5

Parasitic red algae
Gelidiocolax margaritoides
- dorsal view with microscope 1

Parasitic red algae
Gelidiocolax margaritoides
- cross section 1

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium with parasite and
1.0mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- with 0.1mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- with 0.01mm division rule 1

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host in-situ 1

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host in-situ 2

Parasitic red algae
Gelidiocolax margaritoides
- Gelidium host in-situ 3

Parasitic red algae
Gelidiocolax margaritoides
- habitat / location 1

Parasitic red algae
Gelidiocolax margaritoides
- habitat / location 2

This small, pale, whitish algae is red algal species that is parasitic on Gelidium pulchellum, Beautiful Straggle Weed. Species found at Chimney Rocks, Penzance, Cornwall, 06.03.18. This is the first time the species has been found in the UK, it has previously been found on Gelidium in Spain, Portugal and South Africa.

Thanks go to Professor Michael Guiry for identifying this species.

AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms.

The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help

people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.

E-mail for Advice or Feedback