BIOTIC Species Information for Glycymeris 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 | Glycymeris spp. | Common name | A bivalve mollusc | ||||||||||||
| MCS Code | W1687 | Recent Synonyms | |||||||||||||
| Phylum | Mollusca | Subphylum | |||||||||||||
| Superclass | Class | Pelecypoda | |||||||||||||
| Subclass | Order | Arcoida | |||||||||||||
| Suborder | Family | Glycymerididae | |||||||||||||
| Genus | Glycymeris | 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 | Phyoplankton | 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 around the Shetland Islands, the Orkneys, the south and west coasts of Britain, Northern Ireland and Blacksod Bay, Ireland. | ||||||||||||||
| Global distribution | Found in north-west Europe from Norway to the Mediterranean and south to western Africa. | ||||||||||||||
| Biogeographic range | Temperate to warm temperate. | Depth range | 10 to 100 m. | ||||||||||||
| Migratory | Non-migratory / Resident | ||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Muddy sandy gravel Gravelley sand Mixed |
Physiographic preferences | |||||||||||||
| Biological zone | Upper Infralittoral Lower Infralittoral Upper Circalittoral Lower Circalittoral Circalittoral Offshore Bathybenthic (Bathyal) |
Wave exposure | |||||||||||||
| Tidal stream strength/Water flow | Salinity | Full (30-40 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 | Continuous | Reproductive Location | As adult | ||||||||||||
| Reproductive frequency | Regeneration potential | No | |||||||||||||
| Life span | 21-50 years | Age at reproductive maturity | See additional information | ||||||||||||
| Generation time | Not researched | Fecundity | Insufficient information | ||||||||||||
| Egg/propagule size | 100 µm diameter | Fertilization type | External | ||||||||||||
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| Reproduction Preferences Additional Information | Age at maturity varies from 4 years in Brest to 12-13 years in the Isle of Man. Settlement can occur at any time but successful recruitment is very occasional. | ||||||||||||||
| Reproduction References | Fish & Fish, 1996, | ||||||||||||||
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