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, |