Trisopterus luscus

Researched By	Morvan Barnes	Data Supplied By	MarLIN
Refereed by	This information is not refereed
Taxonomy
Scientific name	Trisopterus luscus	Common name	Pouting
MCS Code	ZG143	Recent Synonyms
Phylum	Chordata	Subphylum	Vertebrata
Superclass	Gnathostomata	Class	Osteichthyes
Subclass	Teleostei	Order	Gadiformes
Suborder		Family	Gadidae
Genus	Trisopterus	Species	luscus
Subspecies
Additional Information
Taxonomy References	Dipper, 2001, Muus & Dahlstrom, 1974, Howson & Picton, 1997, Hayward & Ryland, 1995b, Whitehead et al., 1986
General Biology
Growth form	Pisciform	Feeding method	Predator, Scavenger
Mobility/Movement	Swimmer	Environmental position	Demersal
Typical food types	Crustaceans as well as small fish, molluscs 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	1.5-2 cm / month
Adult dispersal potential	>10km	Dependency	Independent
Sociability	Gregarious
Toxic/Poisonous?	No
Additional Information
Biology References	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 Iceland to southern Spain and Greece.
Biogeographic range	Cold temperate to warm temperate.	Depth range	From 30 m to 100 m depth.
Migratory	Seasonal (reproduction)
Distribution Additional Information
Substratum preferences	Sandy mud, Muddy sand, Bedrock	Physiographic preferences	Open coast, Offshore seabed, Estuary
Biological zone	Upper Circalittoral, Lower Circalittoral, Circalittoral Offshore, Bathybenthic (Bathyal)	Wave exposure
Tidal stream strength/Water flow		Salinity	Variable (18-40 psu)
Habitat Additional Information
Distribution References	Dipper, 2001, Muus & Dahlstrom, 1974, Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Cohen et al., 1990, Franca et al., 2004
Reproduction/Life History
Reproductive type	Gonochoristic	Developmental mechanism	Oviparous
Reproductive Season	December to March	Reproductive Location	Water column
Reproductive frequency	Annual episodic	Regeneration potential	No
Life span	3-5 years	Age at reproductive maturity	1-2 years
Generation time	Not researched	Fecundity	probably 1,000 to 20,000
Egg/propagule size	0.9-1.2 mm	Fertilization type	External
Larvae/Juveniles Larval/Juvenile dispersal potential Insufficient information Larval settlement period Not relevant Duration of larval stage Not relevant
Additional Information
Reproduction References	Munk & Nielsen, 2005, Cohen et al., 1990, Franca et al., 2004