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
Cladostephus spongiosus (Hudson) C.Agardh, 1817 s.s. - Hairy Sand Weed (Brown seaweed images)
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Hairy Sand Weed
Cladostephus spongiosus
- thallus with 1.0mm division rule / scale 1

Hairy Sand Weed
Cladostephus spongiosus
- frond habit 1

Hairy Sand Weed
Cladostephus spongiosus
- base and shoot 1

Hairy Sand Weed
Cladostephus spongiosus
- thallus 1

Hairy Sand Weed
Cladostephus spongiosus
- frond tip in sample container 1

Hairy Sand Weed
Cladostephus spongiosus
- thallus in sample container 1

Hairy Sand Weed
Cladostephus spongiosus
- habitat / location 1

The specimen above was found in a small scrape sample of Coral Weed, Corallina officinalis, taken from the lowershore at Skilly, Newlyn, Cornwall, 26.04.21.

Hairy Sand Weed
Cladostephus spongiosus
- tip / not verticillate 1

Hairy Sand Weed
Cladostephus spongiosus
- tip / not verticillate 2

Hairy Sand Weed
Cladostephus spongiosus
- with epiphytes 1

The specimen above was found south of the slipway in the south-west corner of Newlyn Harbour, Newlyn, Cornwall, 25.01.15.

Please note - Cladostephus spongiosus has recently been divided into two species in the NE Atlantic, Cladostephus spongiosus and Cladostephus hirsutus.

Ref: Svenja Heesch, Fabio Rindi, Michael D. Guiry & Wendy A. Nelson (2020):
Molecular phylogeny and taxonomic reassessment of the genus Cladostephus (Sphacelariales, Phaeophyceae), European Journal of Phycology.
DOI: 10.1080/09670262.2020
.1740947

In general terms Cladostephus spongiosus is a smaller species 4-10cm high with 2-20 upright axes and Cladostephus hirsutus is up to 25cm high with 5-100 upright axes.

AlgaeBase

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

Cladostephus spongiosus hairy sand weed Brown Seaweed 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.