BIOTIC Species Information for Grania spp.
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| Researched by | Sean Lindsley-Leake | Data supplied by | MarLIN | ||||||||||||
| Refereed by | This information is not refereed | ||||||||||||||
| Taxonomy | |||||||||||||||
| Scientific name | Grania spp. | Common name | An oligochaete worm | ||||||||||||
| MCS Code | P1524 | Recent Synonyms | |||||||||||||
| Phylum | Annelida | Subphylum | |||||||||||||
| Superclass | Class | Oligochaeta | |||||||||||||
| Subclass | Order | Haplotaxida | |||||||||||||
| Suborder | Tubificina | Family | Enchytraeidae | ||||||||||||
| Genus | Grania | Species | |||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | Locke & Coates, 1998, | ||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Feeding method | ||||||||||||||
| Mobility/Movement | Burrower |
Environmental position | |||||||||||||
| Typical food types | Habit | Free living | |||||||||||||
| Bioturbator | Flexibility | High (>45 degrees) | |||||||||||||
| Fragility | Intermediate | Size | Very small(<1cm) | ||||||||||||
| Height | not relevant | Growth Rate | |||||||||||||
| Adult dispersal potential | Dependency | ||||||||||||||
| Sociability | Solitary | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Coates & Erseus, 1985, Locke & Coates, 1998, Barnes et al., 2001, | ||||||||||||||
| Distribution and Habitat | |||||||||||||||
| Distribution in Britain & Ireland | |||||||||||||||
| Global distribution | |||||||||||||||
| Biogeographic range | Depth range | ||||||||||||||
| Migratory | |||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Physiographic preferences | ||||||||||||||
| Biological zone | Wave exposure | ||||||||||||||
| Tidal stream strength/Water flow | Salinity | ||||||||||||||
| Habitat Preferences Additional Information | |||||||||||||||
| Distribution References | |||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Permanent hermaphrodite Fission |
Developmental mechanism | Insufficient information Schizotomous |
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| Reproductive Season | Insufficient information | Reproductive Location | As adult | ||||||||||||
| Reproductive frequency | Insufficient information | Regeneration potential | Yes | ||||||||||||
| Life span | Insufficient information | Age at reproductive maturity | Insufficient information | ||||||||||||
| Generation time | Insufficient information | Fecundity | 6-11 | ||||||||||||
| Egg/propagule size | 5-25 µm | Fertilization type | Internal | ||||||||||||
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| Reproduction Preferences Additional Information | simultaneous hermaphrodites, some occasional schyzogenesis (reproduction by spontaneous fission) in some forms. | ||||||||||||||
| Reproduction References | Coates & Erseus, 1985, Rota & Erseus, 2003, Locke & Coates, 1998, | ||||||||||||||
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