BIOTIC Species Information for Pilumnus spp.
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| Researched by | Dr Paul Somerfield & Prof. Richard Warwick | Data supplied by | PML | ||||||||||||
| Refereed by | This information is not refereed | ||||||||||||||
| Taxonomy | |||||||||||||||
| Scientific name | Pilumnus spp. | Common name | A hairy crab | ||||||||||||
| MCS Code | S1614 | Recent Synonyms | |||||||||||||
| Phylum | Crustacea | Subphylum | |||||||||||||
| Superclass | Class | Eumalacostraca | |||||||||||||
| Subclass | Eucarida | Order | Decapoda | ||||||||||||
| Suborder | Pleocyemata | Family | Pilumnus | ||||||||||||
| Genus | Pilumnus | Species | |||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | Howson & Picton, 1997, | ||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Articulate |
Feeding method | Omnivore Scavenger |
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| Mobility/Movement | Crawler |
Environmental position | Epibenthic |
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| Typical food types | Insufficient information | Habit | Free living | ||||||||||||
| Bioturbator | Flexibility | Low (10-45 degrees) | |||||||||||||
| Fragility | Fragile | Size | Small(1-2cm) | ||||||||||||
| Height | Growth Rate | Not researched | |||||||||||||
| Adult dispersal potential | Not researched | Dependency | Independent | ||||||||||||
| Sociability | Solitary | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Fish & Fish, 1996, | ||||||||||||||
| Distribution and Habitat | |||||||||||||||
| Distribution in Britain & Ireland | Found on most British coasts but is more frequent in the south and west. | ||||||||||||||
| Global distribution | Found in north-west Europe from Norway to northern France and in the Mediterranean off the east coasts of Greece. | ||||||||||||||
| Biogeographic range | Temperate to warm temperate. | Depth range | LWNT to 70 m. | ||||||||||||
| Migratory | Non-migratory / Resident | ||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Bedrock Small boulders Cobbles Pebbles Under boulders |
Physiographic preferences | |||||||||||||
| Biological zone | Upper Infralittoral Lower Infralittoral Upper Circalittoral Lower Circalittoral Circalittoral Offshore |
Wave exposure | |||||||||||||
| Tidal stream strength/Water flow | Salinity | Full (30-40 psu) |
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| Habitat Preferences Additional Information | |||||||||||||||
| Distribution References | Fish & Fish, 1996, | ||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Permanent hermaphrodite |
Developmental mechanism | Planktotrophic |
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| Reproductive Season | April to August | Reproductive Location | As adult | ||||||||||||
| Reproductive frequency | Regeneration potential | No | |||||||||||||
| Life span | Insufficient information | Age at reproductive maturity | Insufficient information | ||||||||||||
| Generation time | Not researched | Fecundity | Insufficient information | ||||||||||||
| Egg/propagule size | Insufficient information | Fertilization type | Internal | ||||||||||||
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| Reproduction Preferences Additional Information | |||||||||||||||
| Reproduction References | Fish & Fish, 1996, | ||||||||||||||
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