BIOTIC Species Information for Gastrosaccus 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 | Gastrosaccus spp. | Common name | An opossum shrimp | ||||||||||||
| MCS Code | S40 | Recent Synonyms | |||||||||||||
| Phylum | Crustacea | Subphylum | |||||||||||||
| Superclass | Class | Eumalacostraca | |||||||||||||
| Subclass | Peracarida | Order | Mysidacea | ||||||||||||
| Suborder | Mysida | Family | Mysidae | ||||||||||||
| Genus | Gastrosaccus | Species | |||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | Howson & Picton, 1997, | ||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Articulate |
Feeding method | Active suspension feeder Sub-surface deposit feeder |
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| Mobility/Movement | Swimmer Crawler Burrower |
Environmental position | Epibenthic Pelagic Infaunal |
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| Typical food types | Detritus, small crustacean invertebrates and diatoms | Habit | Free living | ||||||||||||
| Bioturbator | Flexibility | Low (10-45 degrees) | |||||||||||||
| Fragility | Intermediate | Size | Small(1-2cm) | ||||||||||||
| Height | Growth Rate | Not researched | |||||||||||||
| Adult dispersal potential | Not researched | Dependency | Independent | ||||||||||||
| Sociability | Gregarious | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Fish & Fish, 1996, MBA, 1957, | ||||||||||||||
| Distribution and Habitat | |||||||||||||||
| Distribution in Britain & Ireland | Found at various locations around the British Isles from northern Scotland to the Isles of Scilly. Possibly under recorded from the coasts of Ireland. | ||||||||||||||
| Global distribution | Found in north-west Europe from Denmark and Scotland to northern France, possibly under recorded from other worldwide locations. | ||||||||||||||
| Biogeographic range | Temperate. | Depth range | Not researched | ||||||||||||
| Migratory | Non-migratory / Resident | ||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Water column (pelagic) Coarse clean sand Fine clean sand |
Physiographic preferences | |||||||||||||
| Biological zone | Insufficient information |
Wave exposure | |||||||||||||
| Tidal stream strength/Water flow | Salinity | ||||||||||||||
| Habitat Preferences Additional Information | |||||||||||||||
| Distribution References | |||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Permanent hermaphrodite |
Developmental mechanism | Ovoviviparous |
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| Reproductive Season | March to October | Reproductive Location | Water column | ||||||||||||
| Reproductive frequency | Regeneration potential | No | |||||||||||||
| Life span | 1 year | Age at reproductive maturity | <1 year | ||||||||||||
| Generation time | Not researched | Fecundity | 9-40 | ||||||||||||
| Egg/propagule size | 700 µm | Fertilization type | Internal | ||||||||||||
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| Reproduction Preferences Additional Information | |||||||||||||||
| Reproduction References | Fish & Fish, 1996, | ||||||||||||||
BIOTIC - Biological Traits Information Catalogue
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