Sunday 19 May
Sea slater (Ligia oceanica)

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Find out here.Sea slater fact file
- Description
- Biology
- Range
- Habitat
- Status
- Threats
- Conservation
- Find out more
- Glossary
- References
- Print factsheet
Sea slater description
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Class | Crustacea |
| Order | Isopoda |
| Family | Ligiidae |
| Genus | Ligia (1) |
The common sea slater is a sea-shore relative of woodlice that can grow up to 3 cm in length (3). It has a flattened, oval-shaped body that is grey to olive in colour and twice as long as it is broad. It has long antennae, seven pairs of walking legs and two projections at the tip of the abdomen, known as uropods. The black eyes are very large and obvious, and are similar to the compound eyes found in insects (4).
- Size
- Length: up to 3 cm (2)
Sea slater biology
The common sea slater is an omnivore, and emerges at night to feed on seaweed and detritus (2). Maturity has been recorded to occur by one year of age, but in most cases breeding will not begin until the sea slater is at least two years old. Breeding takes place in spring and summer. Most individuals only breed once, and have a life span of around two and a half to three years (2).
TopSea slater range
This species has a wide distribution in north-west Europe (2). In Britain, it is common on coasts with rocky substrata (4).
TopSea slater habitat
Found on rocky coasts beneath stones and in crevices on the upper shore (2).
TopSea slater status
Not threatened (2).
TopSea slater threats
This species is not threatened at present.
TopSea slater conservation
Conservation action is not required for this species (4).
TopFind out more
Ballerstedt, S., (2002) Ligia oceanica. Common sea slater. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. Available from:
http://www.marlin.ac.uk/species/Ligiaoceanica.htm
Authentication
This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact: arkive@wildscreen.org.ukTopReferences
- National Biodiversity Network Species Dictionary (January, 2004)
http://www.nhm.ac.uk/nbn - Fish, J.D. and Fish, S. (1989) A student’s guide to the seashore. Unwin Hyman Ltd, London.
- Gibson, R., Hextall, B. and Rogers, A. (2001) Photographic guide to the sea and shore life of Britain and north-west Europe. Oxford University Press, Oxford.
- Ballerstedt, S., (2002) Ligia oceanica. Common sea slater. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. (November, 2003)
http://www.marlin.ac.uk/species/Ligiaoceanica.htm
More »Related species
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This is a UK rocky shore species. Visit our habitat page to learn more.
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