BIOTIC Species Information for Gammaropsis spp.
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| Researched by | Sean Lindsley-Leake | Data supplied by | MarLIN | ||||||||||||
| Refereed by | This information is not refereed | ||||||||||||||
| Taxonomy | |||||||||||||||
| Scientific name | Gammaropsis spp. | Common name | An amphipod | ||||||||||||
| MCS Code | S538 | Recent Synonyms | |||||||||||||
| Phylum | Crustacea | Subphylum | |||||||||||||
| Superclass | Class | Eumalacostraca | |||||||||||||
| Subclass | Peracarida | Order | Amphipoda | ||||||||||||
| Suborder | Corophiidea | Family | Photidae | ||||||||||||
| Genus | Gammaropsis | Species | |||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | |||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Feeding method | ||||||||||||||
| Mobility/Movement | Crawler |
Environmental position | |||||||||||||
| Typical food types | Habit | Free living | |||||||||||||
| Bioturbator | Flexibility | High (>45 degrees) | |||||||||||||
| Fragility | Intermediate | Size | Small(1-2cm) | ||||||||||||
| Height | Growth Rate | ||||||||||||||
| Adult dispersal potential | Dependency | Independent | |||||||||||||
| Sociability | Insufficient information | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Powell & Moore, 1991, | ||||||||||||||
| 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 | Powell & Moore, 1991, | ||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Gonochoristic |
Developmental mechanism | Viviparous (Parental Care) Oviparous |
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| Reproductive Season | March to October | Reproductive Location | As adult | ||||||||||||
| Reproductive frequency | Annual episodic | Regeneration potential | No | ||||||||||||
| Life span | 1 year | Age at reproductive maturity | See additional information | ||||||||||||
| Generation time | <1 year | Fecundity | 4 - 36 eggs over 2 broods | ||||||||||||
| Egg/propagule size | 0.23mm | Fertilization type | Internal | ||||||||||||
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| Reproduction Preferences Additional Information | Sexual maturity is reached after 8 moults (around 4mm). Fecundity is dependant on female size and season.Semi annual life cycle means that two generations are possible, differing embryo sizes are produced at different times of the year. Large embryos, and fewer of them, are produced over winter; with small embryos, and more of them, produced over the summer. The number of embryos found in june ~20, found feb-june/july-oct~10 . | ||||||||||||||
| Reproduction References | Powell & Moore, 1991, Powell, 1992, Steele et al., 1986, Jeong et al., 2009, Steele et al., 1986, Powell, 1992, | ||||||||||||||
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