MarLIN

information on the biology of species and the ecology of habitats found around the coasts and seas of the British Isles

A kelp (Laminaria ochroleuca)

Distribution data supplied by the Ocean Biogeographic Information System (OBIS). To interrogate UK data visit the NBN Atlas.

Summary

Description

Laminaria ochroleuca is a yellow-brown digitate kelp up to about 1.5 m in length. It has a distinct yellow area at the junction of the stipe and the blade which is a key distinguishing feature. Laminaria ochroleuca also has a rigid round stem (or stipe) that is clean of any attached growths (epiphytes). The blade is broad and flattened, dividing into numerous strap like digits.

Recorded distribution in Britain and Ireland

An isolated recording in the Shetland Islands but otherwise found on the coast of south west England including Lundy, the Isles of Scilly, south Devon and Cornwall.

Global distribution

NE Atlantic, Mediterranean, SE Atlantic

Habitat

The species is found on rocks from the low water spring tide level to the shallow subtidal. In some locations Laminaria ochroleuca may be found in deeper water. For example, in the Isles of Scilly a park of Laminaria ochroleuca is found deeper than Laminaria hyperborea at a depth of about 25 m. The species may occur as mono-specific stands or as mixed stands with other Laminaria species.

Depth range

-

Identifying features

  • Bright yellow patch at base of blade.
  • Similar in appearance to Laminaria hyperborea but with a rigid round epiphyte free stipe.

Additional information

None

Listed by

- none -

Further information sources

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Bibliography

  1. BMLSS (British Marine Life Study Society), 2002. Jellyfish page [On-line] http://ourworld.compuserve.com/homepages/BMLSS/Moonjell.htm, 2002-07-02

  2. Guiry, M.D. & Nic Dhonncha, E., 2002. AlgaeBase. World Wide Web electronic publication http://www.algaebase.org,

  3. Hardy, F.G. & Guiry, M.D., 2003. A check-list and atlas of the seaweeds of Britain and Ireland. London: British Phycological Society

  4. Howson, C.M. & Picton, B.E., 1997. The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]

  5. JNCC (Joint Nature Conservation Committee), 1999. Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line] http://www.jncc.gov.uk/mermaid

  6. National Biodiversity Network (NBN) Atlas website. Available from: http://www.nbnatlas.org.  Accessed 01 April 2017

  7. Norton, T.A. (ed.), 1985. Provisional Atlas of the Marine Algae of Britain and Ireland. Huntingdon: Biological Records Centre, Institute of Terrestrial Ecology.

Citation

This review can be cited as:

Smirthwaite, J. 2007. Laminaria ochroleuca A kelp. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. Available from: http://www.marlin.ac.uk/species/detail/1838

Last Updated: 03/07/2007