BIOTIC Species Information for Echinocyamus pusillus
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| Researched by | Lizzie Tyler | Data supplied by | University of Sheffield | ||||||||||||
| Refereed by | This information is not refereed. | ||||||||||||||
| Taxonomy | |||||||||||||||
| Scientific name | Echinocyamus pusillus | Common name | Pea urchin | ||||||||||||
| MCS Code | ZB211 | Recent Synonyms | |||||||||||||
| Phylum | Echinodermata | Subphylum | Echinozoa | ||||||||||||
| Superclass | Class | Echinoidea | |||||||||||||
| Subclass | Order | Clypeasteroidea | |||||||||||||
| Suborder | Family | Fibulariidae | |||||||||||||
| Genus | Echinocyamus | Species | pusillus | ||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | Howson & Picton, 1997, | ||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Globose |
Feeding method | Surface deposit feeder Sub-surface deposit feeder |
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| Mobility/Movement | Burrower |
Environmental position | Infaunal |
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| Typical food types | Organic detritus | Habit | Free living | ||||||||||||
| Bioturbator | Flexibility | None (< 10 degrees) | |||||||||||||
| Fragility | Fragile | Size | Small(1-2cm) | ||||||||||||
| Height | 0 | Growth Rate | Not researched | ||||||||||||
| Adult dispersal potential | Not researched | Dependency | Independent | ||||||||||||
| Sociability | Solitary | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Picton, 1993, Fish & Fish, 1996, Hayward & Ryland, 1995b, Hayward & Ryland, 1990, Julie Bremner, unpub data, | ||||||||||||||
| Distribution and Habitat | |||||||||||||||
| Distribution in Britain & Ireland | Found on most British and Irish coasts although rare off south-east Britain. | ||||||||||||||
| Global distribution | Found in western Europe from Norway to the Azores and the Mediterranean and south to western Africa. | ||||||||||||||
| Biogeographic range | Temperate to warm temperate. | Depth range | 0 - 1250 m | ||||||||||||
| Migratory | Insufficient info. | ||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Coarse clean sand Gravel / shingle |
Physiographic preferences | |||||||||||||
| Biological zone | Wave exposure | ||||||||||||||
| Tidal stream strength/Water flow | Salinity | ||||||||||||||
| Habitat Preferences Additional Information | |||||||||||||||
| Distribution References | Foster-Smith, 2000, Picton, 1993, Hayward & Ryland, 1995b, Hayward & Ryland, 1990, Julie Bremner, unpub data, | ||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Gonochoristic |
Developmental mechanism | Planktotrophic |
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| Reproductive Season | Summer | Reproductive Location | As adult | ||||||||||||
| Reproductive frequency | Regeneration potential | No | |||||||||||||
| Life span | Insufficient information | Age at reproductive maturity | 1 year | ||||||||||||
| Generation time | Not researched | Fecundity | |||||||||||||
| Egg/propagule size | 224 µm diameter | Fertilization type | External | ||||||||||||
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| Reproduction Preferences Additional Information | |||||||||||||||
| Reproduction References | Fish & Fish, 1996, Thorson, 1946, Julie Bremner, unpub data, | ||||||||||||||
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