BIOTIC Species Information for Trisopterus minutus
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| Researched by | Morvan Barnes | Data supplied by | MarLIN | ||||||||||||
| Refereed by | This information is not refereed | ||||||||||||||
| Taxonomy | |||||||||||||||
| Scientific name | Trisopterus minutus | Common name | Poor Cod | ||||||||||||
| MCS Code | ZG144 | Recent Synonyms | |||||||||||||
| Phylum | Chordata | Subphylum | Vertebrata | ||||||||||||
| Superclass | Gnathostomata | Class | Osteichthyes | ||||||||||||
| Subclass | Teleostei | Order | Gadiformes | ||||||||||||
| Suborder | Family | Gadidae | |||||||||||||
| Genus | Trisopterus | Species | minutus | ||||||||||||
| Subspecies | |||||||||||||||
| Additional Information | |||||||||||||||
| Taxonomy References | Gibson et al., 2001, Muus & Nielson, 1999, Howson & Picton, 1997, Hayward & Ryland, 1995b, Whitehead et al., 1986, | ||||||||||||||
| General Biology | |||||||||||||||
| Growth form | Pisciform |
Feeding method | Predator Scavenger |
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| Mobility/Movement | Swimmer |
Environmental position | Demersal |
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| Typical food types | Crustaceans as well as small fish and polychaetes. | Habit | Free living | ||||||||||||
| Bioturbator | Not relevant | Flexibility | Low (10-45 degrees) | ||||||||||||
| Fragility | Intermediate | Size | Medium-large(21-50cm) | ||||||||||||
| Height | Not researched | Growth Rate | 1-1.5 cm / month | ||||||||||||
| Adult dispersal potential | >10km | Dependency | Independent | ||||||||||||
| Sociability | Gregarious | ||||||||||||||
| Toxic/Poisonous? | No | ||||||||||||||
| General Biology Additional Information | |||||||||||||||
| Biology References | Metin et al., 2008, Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Cohen et al., 1990, | ||||||||||||||
| Distribution and Habitat | |||||||||||||||
| Distribution in Britain & Ireland | Found off all British and Irish coasts although less common off north-east Britain. | ||||||||||||||
| Global distribution | Found in western Europe from Sweden and Scotland to south-east Spain and Greece. | ||||||||||||||
| Biogeographic range | Temperate to warm temperate. | Depth range | From 15 m to 200 m depth. | ||||||||||||
| Migratory | Seasonal (reproduction) | ||||||||||||||
| Distribution Additional Information | |||||||||||||||
| Substratum preferences | Bedrock Sandy mud Muddy sand |
Physiographic preferences | Open coast Offshore seabed |
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| Biological zone | Upper Infralittoral Lower Infralittoral Upper Circalittoral Lower Circalittoral Circalittoral Offshore Bathybenthic (Bathyal) |
Wave exposure | |||||||||||||
| Tidal stream strength/Water flow | Salinity | Full (30-40 psu) |
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| Habitat Preferences Additional Information | |||||||||||||||
| Distribution References | Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Cohen et al., 1990, | ||||||||||||||
| Reproduction/Life History | |||||||||||||||
| Reproductive type | Gonochoristic |
Developmental mechanism | Oviparous |
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| Reproductive Season | January to April | Reproductive Location | Water column | ||||||||||||
| Reproductive frequency | Annual episodic | Regeneration potential | No | ||||||||||||
| Life span | 3-5 years | Age at reproductive maturity | 1 year | ||||||||||||
| Generation time | Not researched | Fecundity | 1,000 to 20,000 | ||||||||||||
| Egg/propagule size | 0.9-1 mm | Fertilization type | External | ||||||||||||
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| Reproduction Preferences Additional Information | |||||||||||||||
| Reproduction References | Metin et al., 2008, Munk & Nielsen, 2005, Cohen et al., 1990, | ||||||||||||||
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