MarLIN

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

A green seaweed (Ulva linza)

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

Summary

Description

Ulva linza is a large, ribbon-like species of green seaweed that may reach up to 30 cm in length. The thalli are unbranched and often have a frilled margin. The thalli taper into a distinct stipe below and are highly compressed. The width of the thallus is greater in the middle than at the base and may reach 5 cm in width. Ulva linza is bright light to dark green in colouration.

Recorded distribution in Britain and Ireland

Found throught the coasts of the British Isles and Ireland.

Global distribution

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Habitat

Ulva linza is a littoral and sublittoral species usually found on rocks or in rock pools, usually marine but occassionally found under brackish conditions.

Depth range

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Identifying features

  • Thalli up to 30 cm in length, 5 cm in width.
  • Unbranched thalli with a frilled margin.
  • Thallus width greatest in the middle.
  • Bright green spring colouration.
  • Central cavity walls are closely adpressed, free only at the margins and the base.

Additional information

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Listed by

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Further information sources

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Bibliography

  1. Burrows, E.M., 1991. Seaweeds of the British Isles. Volume 2. Chlorophyta. London: British Museum (Natural History).

  2. Dickinson, C.I., 1963. British seaweeds. London & Frome: Butler & Tanner Ltd.

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

  6. OBIS,  2017. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2017-11-19

Citation

This review can be cited as:

Barnes, M.K.S. 2008. Ulva linza A green seaweed. 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/137

Last Updated: 22/05/2008