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.

A-P-H-O-T-O Wildlife Stock Image Library
Calothrix sp. possibly C. parasitica on Nemalion helminthoides, Sea Noodles. (Cyanobacteria)
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Cyanobacteria
Calothrix sp., C. parasitica ?
- on piece of Nemalion
helminthoides, Sea Noodles 1

Cyanobacteria
Calothrix sp., C. parasitica ?
- on piece of Nemalion
helminthoides, Sea Noodles 2

Cyanobacteria
Calothrix sp., C. parasitica ?
- under microscope 1

Cyanobacteria
Calothrix sp., C. parasitica ?
- under microscope 2

Cyanobacteria
Calothrix sp., C. parasitica ?
- with 0.01mm division rule 1

Cyanobacteria
Calothrix sp., C. parasitica ?
- under microscope 3

Cyanobacteria
Calothrix sp., C. parasitica ?
- under microscope 4

Cyanobacteria
Calothrix sp., C. parasitica ?
- under microscope 5

Cyanobacteria
Calothrix sp., C. parasitica ?
- the Nemalion helminthoides host with numerous epiphytes 1

Cyanobacteria
Calothrix sp., C. parasitica ?
- Nemalion helminthoides 1

The species here was found on Sea Noodles / Threadweed, Nemalion helminthoides, that was found on a rock on the lowershore at Skilly, south of Newlyn, Cornwall, 16.08.18. The piece of Nemalion on which the cyanobacteria was found was covered in numerous epithytes, these included Polysiphonia, Ceramium and Myriotrichia clavaeformis.

Calothrix parasitica is reported as found in Nemalion multifidum in "A Handbook of the British Seaweeds" by Lily Newton, 1931. However, given recent advances in science and the increasing number of species of Calothrix known to science, identification to species level is probably impossible without a DNA test.

Calothrix species possibly parasitica found on Nemalion helminthoides Threadweed or Sea Noodles blue green algae cyanobacteria images
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.