A green seaweed (Blidingia minima)

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

Summary

Description

Blidingia minima consists of fine, branched or unbranched, hollow green tubes, up to 5 cm long. Groups of tubes arise from the raised centre of a small flattened disc-shaped holdfast that is attached to the rock. Plants reproduce throughout the year, reproductive spores arising from the upper layers of the tubes.

Recorded distribution in Britain and Ireland

Found all round the coast of Britain but rarely reported around the north, east and south coast of Ireland.

Global distribution

Cosmopolitan.

Habitat

Found on hard surfaces, including stones, rocks and boulders on the upper shore and in harbours and estuaries. Occasionally found free-floating in sheltered water. Blidingia minima is found in a range of salinities from almost freshwater to sea water and on exposed and sheltered shores. It may occur mixed with other species.

Depth range

-

Identifying features

  • Fine, green, tubular fronds, up to 5 cm long, branched or unbranched.
  • Attached to rock by raised centre of flattened disc-shaped holdfast.
  • Cells are arranged irregularly and are <10µm in diameter, with stellate chloroplasts.

Additional information

Blidingia minima can be confused with Ulva spp., but can be identified by its smaller, more delicate and sometimes branching tubes, the central disc attachment, its microscopic morphology and reproductive processes.

Listed by

- none -

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

  3. Hayward, P., Nelson-Smith, T. & Shields, C. 1996. Collins pocket guide. Sea shore of Britain and northern Europe. London: HarperCollins.

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

Datasets

  1. Cofnod – North Wales Environmental Information Service, 2018. Miscellaneous records held on the Cofnod database. Occurrence dataset: https://doi.org/10.15468/hcgqsi accessed via GBIF.org on 2018-09-25.

  2. Environmental Records Information Centre North East, 2018. ERIC NE Combined dataset to 2017. Occurrence dataset: http://www.ericnortheast.org.ukl accessed via NBNAtlas.org on 2018-09-38

  3. Fenwick, 2018. Aphotomarine. Occurrence dataset http://www.aphotomarine.com/index.html Accessed via NBNAtlas.org on 2018-10-01

  4. Kent Wildlife Trust, 2018. Biological survey of the intertidal chalk reefs between Folkestone Warren and Kingsdown, Kent 2009-2011. Occurrence dataset: https://www.kentwildlifetrust.org.uk/ accessed via NBNAtlas.org on 2018-10-01.

  5. Manx Biological Recording Partnership, 2017. Isle of Man wildlife records from 01/01/2000 to 13/02/2017. Occurrence dataset: https://doi.org/10.15468/mopwow accessed via GBIF.org on 2018-10-01.

  6. Manx Biological Recording Partnership, 2018. Isle of Man historical wildlife records 1995 to 1999. Occurrence dataset: https://doi.org/10.15468/lo2tge accessed via GBIF.org on 2018-10-01.

  7. Merseyside BioBank., 2018. Merseyside BioBank (unverified). Occurrence dataset: https://doi.org/10.15468/iou2ld accessed via GBIF.org on 2018-10-01.

  8. NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.

  9. OBIS (Ocean Biodiversity Information System),  2024. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2024-11-23

  10. Outer Hebrides Biological Recording, 2018. Non-vascular Plants, Outer Hebrides. Occurrence dataset: https://doi.org/10.15468/goidos accessed via GBIF.org on 2018-10-01.

  11. Royal Botanic Garden Edinburgh, 2018. Royal Botanic Garden Edinburgh Herbarium (E). Occurrence dataset: https://doi.org/10.15468/ypoair accessed via GBIF.org on 2018-10-02.

  12. South East Wales Biodiversity Records Centre, 2018. SEWBReC Algae and allied species (South East Wales). Occurrence dataset: https://doi.org/10.15468/55albd accessed via GBIF.org on 2018-10-02.

Citation

This review can be cited as:

Avant, P. 2008. Blidingia minima A green seaweed. In Tyler-Walters H. and Hiscock K. Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 23-11-2024]. Available from: https://www.marlin.ac.uk/species/detail/1679

Last Updated: 29/05/2008