BIOTIC Species Information for Pisidia longicornis
Researched byLizzie Tyler Data supplied byUniversity of Sheffield
Refereed byThis information is not refereed.
Taxonomy
Scientific namePisidia longicornis Common nameLong clawed porcelain crab
MCS CodeS1482 Recent SynonymsPorcellana longicornis
PhylumCrustacea Subphylum
Superclass ClassEumalacostraca
SubclassEucarida OrderDecapoda
SuborderPleocyemata FamilyPorcellanidae
GenusPisidia Specieslongicornis
Subspecies   
Additional Information
Taxonomy References Ingle, 1997, Howson & Picton, 1997, Crothers & Crothers, 1988,
General Biology
Growth formArticulate
 Feeding methodPassive suspension feeder
Active suspension feeder
Mobility/MovementSwimmer
Crawler
 Environmental positionEpifaunal
Typical food typesNo text entered HabitFree living
BioturbatorNot relevant FlexibilityNone (< 10 degrees)
FragilityFragile SizeSmall(1-2cm)
HeightInsufficient information Growth RateInsufficient information
Adult dispersal potential100-1000m DependencyIndependent
SociabilitySolitary
Toxic/Poisonous?No
General Biology Additional InformationPisidia longicornis is the most numerically abundant decapod crustacean in sublittoral areas. It occurs in densities of up to 640 /m² (Robinson & Tully, 2000a). Smaldon (1972) suggests that it "may survive to breed for a second or third season" suggesting a life span of up to three years.
Biology References Ingle, 1997, Smaldon, 1972, Robinson & Tully, 2000, Hayward & Ryland, 1990, Julie Bremner, unpub data,
Distribution and Habitat
Distribution in Britain & IrelandPresent all around Britain and Ireland.
Global distributionPresent in the north-east Atlantic from Norway to Angola, west Africa and the whole of the Mediterranean.
Biogeographic rangeNot researched Depth range0 - 100 m
MigratoryNon-migratory / Resident   
Distribution Additional InformationNo text entered
Substratum preferencesLarge to very large boulders
Small boulders
 Physiographic preferencesOpen coast
Strait / sound
Sealoch
Ria / Voe
Biological zoneMid Eulittoral
Lower Eulittoral
Sublittoral Fringe
Upper Infralittoral
Lower Infralittoral
Upper Circalittoral
Lower Circalittoral
 Wave exposureExposed
Moderately Exposed
Sheltered
Very Sheltered
Tidal stream strength/Water flowVery Strong (>6 kn)
Strong (3-6 kn)
Moderately Strong (1-3 kn)
 SalinityFull (30-40 psu)
Habitat Preferences Additional Information
Distribution References Ingle, 1997, Hayward & Ryland, 1990, Julie Bremner, unpub data,
Reproduction/Life History
Reproductive typeGonochoristic
 Developmental mechanismPlanktotrophic
Reproductive SeasonMarch to August Reproductive LocationInsufficient information
Reproductive frequencyAnnual episodic Regeneration potential No
Life span3-5 years Age at reproductive maturity
Generation timeInsufficient information Fecundity
Egg/propagule size Fertilization typeInsufficient information
Larvae/Juveniles
Larval/Juvenile dispersal potential>10km Larval settlement periodInsufficient information
Duration of larval stage1-2 months   
Reproduction Preferences Additional InformationIngle (1997) indicates that eggs are present from March to August in southern England and from February to September in the Mediterranean.
Reproduction References Ingle, 1997, Smaldon, 1972, Robinson & Tully, 2000, Robinson & Tully, 2000b, Julie Bremner, unpub data,
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