BIOTIC Species Information for Pseudamussium septemradiatum
Click here to view the MarLIN Key Information Review for Pseudamussium septemradiatum
Researched byMorvan Barnes Data supplied byMarLIN
Refereed byThis information is not refereed
Taxonomy
Scientific namePseudamussium septemradiatum Common nameSeven rayed scallop
MCS CodeW1791 Recent Synonyms

PhylumMollusca Subphylum
Superclass ClassPelecypoda
Subclass OrderOstreoida
SuborderPectinina FamilyPectinidae
GenusPseudamussium Speciesseptemradiatum
Subspecies   

Additional Information
Taxonomy References Matsumoto & Hayami, 2000, North, 1951, Howson & Picton, 1997, Hayward & Ryland, 1995b,
General Biology
Growth formBivalved
Feeding methodActive suspension feeder
Surface deposit feeder
Mobility/MovementSwimmer
Temporary attachment
Environmental positionEpifaunal
Epibenthic
Typical food typesSuspended organic particles and phytoplankton HabitFree living
BioturbatorNot relevant FlexibilityNone (< 10 degrees)
FragilityIntermediate SizeSmall-medium(3-10cm)
HeightNot researched Growth RateNot Researched
Adult dispersal potentialNot researched DependencyIndependent
SociabilitySolitary
Toxic/Poisonous?No
General Biology Additional Information
Biology References North, 1951, Mohlenberg & Riisgard, 1978, Hayward & Ryland, 1995b, Tebble, 1966, Christensen, 1980,
Distribution and Habitat
Distribution in Britain & IrelandFound off the west coasts of Scotland and the coasts of Northumberland and Durham.
Global distributionFound in north-west Europe from Norway to the Shetlands and south to Spain and the Canary Isles and in the Meditteranean.
Biogeographic rangeTemperate to warm temperate. Depth rangeFrom 15 m to 300 m depth.
MigratoryNon-migratory / Resident   
Distribution Additional Information

Substratum preferencesGravel / shingle
Coarse clean sand
Fine clean sand
Muddy sand
Gravelley sand
Physiographic preferencesOpen coast
Offshore seabed
Biological zoneUpper Circalittoral
Lower Circalittoral
Circalittoral Offshore
Bathybenthic (Bathyal)
Wave exposureField unresearched
Tidal stream strength/Water flowField unresearched
SalinityFull (30-40 psu)
Habitat Preferences Additional Information
Distribution References Hayward & Ryland, 1995b, Tebble, 1966, Seaward, 1982, Christensen, 1980,
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismNot researched
Reproductive SeasonNot researched Reproductive LocationWater column
Reproductive frequencyAnnual protracted Regeneration potential No
Life span6-10 years Age at reproductive maturity1 year
Generation timeNot researched FecundityInsufficient information
Egg/propagule sizeInsufficient information Fertilization typeExternal
Larvae/Juveniles
Larval/Juvenile dispersal potentialNot researched Larval settlement periodNot researched
Duration of larval stageNot researched   
Reproduction Preferences Additional Information
Reproduction References Hayward & Ryland, 1995b, Tebble, 1966, Christensen, 1980,
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