Ceramium shuttleworthianum is a small marine red alga.
| Ceramium shuttleworthianum | |
|---|---|
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Scientific classification 
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| Clade: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Ceramiaceae |
| Genus: | Ceramium |
| Species: | C. shuttleworthianum
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| Binomial name | |
| Ceramium shuttleworthianum (Kützing) Silva
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| Synonyms | |
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Description
editCeramium shuttleworthianum is a small alga fundamentally monosiphonous[1] with densely interwoven branches. The cylindrical branches are incompletely corticate. Spines are formed in whorls on the cortical bands near the apices of the branches which are inrolled near the tips. The spines have a multicellular base merging with the cortical bands cells and are 2 to 3 cells long.[2] Only 3 other species in the British Isles have spines which help in identification: Ceramium echionotum, Ceramium ciliatum, Ceramium gaditanum. on the rocks, mussels and in rock pools in the littoral.[2]
Habitat
editGenerally growing in the littoral zone and is common on exposed shores on barnacles and on mussel Mytilus[3][4] and limpets.[5]
Distribution
editCommon around Great Britain, Isle of Man and Ireland. Recorded from the Atlantic coast of Europe[2] and Iceland.[6]
Reproduction
editThe gametophytes are dioecious. Spermatangia are produced as are cystocarps and tetrasporangia.
Conservation status
editIn Iceland, Ceramium shuttleworthianum has the conservation status of a vulnerable species (VU).[6]
References
edit- ^ Jones, W.E. 1962 A key to the genera of British seaweeds. Field Studies Vol.1 No. 4, pp. 1 - 32
- ^ a b c Maggs, C.A. and Hommersand, M.H. 1993. Seaweeds of the British Isles Volume 1 Rhodophyta Part 3 Ceramiales Natural History Museum, London ISBN 0-11-310045-0
- ^ Lewis, J.R. 1964 The Ecology of Rocky Shores. The English Universities Press Ltd
- ^ Morton, O. 1994. Marine Algae of Northern Ireland. Ulster Museum. ISBN 0-900761-28-8
- ^ Bunker,F.StP., Maggs, C.A., Brodie, J.A. and Bunker, A.R. 2017, Seaweeds of Britain and Ireland. Second Edition. Wild Nature Press, Plymouth. ISBN 978-0995567337.
- ^ a b Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). Válisti 1: Plöntur. (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands.