BIOTIC Species Information for Thracia 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 | Thracia spp. | Common name | A bivalve mollusc | ||||||||||||
MCS Code | W2227 | Recent Synonyms | |||||||||||||
Phylum | Mollusca | Subphylum | |||||||||||||
Superclass | Class | Pelecypoda | |||||||||||||
Subclass | Order | Pholadomyoida | |||||||||||||
Suborder | Family | Thraciidae | |||||||||||||
Genus | Thracia | Species | |||||||||||||
Subspecies | |||||||||||||||
Additional Information | |||||||||||||||
Taxonomy References | Howson & Picton, 1997, | ||||||||||||||
General Biology | |||||||||||||||
Growth form | Bivalved |
Feeding method | Active suspension feeder |
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Mobility/Movement | Burrower |
Environmental position | Infaunal |
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Typical food types | Phytoplankton, detritus. | Habit | Free living | ||||||||||||
Bioturbator | Flexibility | None (< 10 degrees) | |||||||||||||
Fragility | Intermediate | Size | Small-medium(3-10cm) | ||||||||||||
Height | Growth Rate | Not researched | |||||||||||||
Adult dispersal potential | Not researched | Dependency | Independent | ||||||||||||
Sociability | Solitary | ||||||||||||||
Toxic/Poisonous? | No | ||||||||||||||
General Biology Additional Information | |||||||||||||||
Biology References | Tebble, 1976, | ||||||||||||||
Distribution and Habitat | |||||||||||||||
Distribution in Britain & Ireland | Found on all British and Irish coasts. | ||||||||||||||
Global distribution | Found in western Europe from Norway to the Mediterranean. | ||||||||||||||
Biogeographic range | Temperate. | Depth range | 2 - 50 m. | ||||||||||||
Migratory | Non-migratory / Resident | ||||||||||||||
Distribution Additional Information | |||||||||||||||
Substratum preferences | Coarse clean sand Fine clean sand Muddy sand Gravelley sand |
Physiographic preferences | |||||||||||||
Biological zone | Sublittoral Fringe Upper Infralittoral Lower Infralittoral Upper Circalittoral Lower Circalittoral |
Wave exposure | |||||||||||||
Tidal stream strength/Water flow | Salinity | Full (30-40 psu) Variable (18-40 psu) |
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Habitat Preferences Additional Information | |||||||||||||||
Distribution References | Tebble, 1976, MBA, 1957, | ||||||||||||||
Reproduction/Life History | |||||||||||||||
Reproductive type | Permanent hermaphrodite |
Developmental mechanism | Planktotrophic |
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Reproductive Season | June to September | 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 | Insufficient information | ||||||||||||
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Reproduction Preferences Additional Information | |||||||||||||||
Reproduction References | MBA, 1957, |