A goose barnacle (Pollicipes pollicipes)

10-06-2008

Map accurate at time of writing. Visit NBN or OBIS to view current distribution

Researched byMorvan Barnes Refereed byAdmin
Authority(Gmelin, 1790)
Other common names- SynonymsPollicipes cornucopia (Gmelin, 1790), Mitella pollicipes (Gmelin, 1790)

Summary

Description

Pedunculate, goose or goose-neck barnacles have a flexible, muscular stalk, known as the peduncle, which supports the main body known as the capitulum. In Pollicipes pollicipes the capitulum is triangular in nature and white-grey in colour. A number of plates of different sizes protect the capitulum, increasing to over 100 in number with age. The plates may reach up to 0.5 mm in length. Six pairs of thin, feather-like cirri can be seen to arise from within the mantle cavity and are used for feeding. The peduncle may reach over 10 cm in length and is strongly attached to the substratum despite repeated battering in exposed conditions.

Recorded distribution in Britain and Ireland

Although found predominantly further south, Pollicipes pollicipes does extend its geographical range as far north as the south-west British Isles and possibly south-west Ireland.

Global distribution

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Habitat

Pollicipes pollicipes can be found in groups attached to rocks on exposed rocky shores and cliffs. They have also been known to occur on the hulls of wrecked ships, various wooden structures and driftwood.

Depth range

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Identifying features

  • Flexible muscular stalk (peduncle) firmly attached to the substratum.
  • Body (capitulum) covered in many white-grey plates of different sizes.
  • Adult peduncles may reach over 10 cm in length.

Additional information

Pollicipes pollicipes may be host to other juveniles of the species, or even adults of other barnacles, which may settle on the peduncle or capitulum of the adult Pollicipes pollicipes.

Listed by

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Further information sources

Search on:

NBN WoRMS

Bibliography

  1. Barnes, M., 1996. Pedunculate cirripedes of the genus Pollicipes. Oceanography and Marine Biology, 34, 303-394
  2. Hayward, P.J. & Ryland, J.S. (ed.) 1995b. Handbook of the marine fauna of North-West Europe. Oxford: Oxford University Press.
  3. Howson, C.M. & Picton, B.E. (ed.), 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.]
  4. OBIS, 2008. Ocean Biogeographic Information System (OBIS). http://www.iobis.org, 2008-10-31
  5. Southward, A.J., 2008. Barnacles. Shrewsbury, Field Studies Council
  6. WoRMS 2007. The World Register of Marine Species (WoRMS). http://www.marinespecies.org, 2008-10-31

Citation

This review can be cited as:

Barnes, M.K.S. 2008. Pollicipes pollicipes A goose barnacle. 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/43

Last Updated: 10/06/2008