BIOTIC Species Information for Pollachius pollachius
Researched byMorvan Barnes Data supplied byMarLIN
Refereed byThis information is not refereed
Taxonomy
Scientific namePollachius pollachius Common namePollack
MCS CodeZG135 Recent Synonyms

PhylumChordata SubphylumVertebrata
SuperclassGnathostomata ClassOsteichthyes
SubclassTeleostei OrderGadiformes
Suborder FamilyGadidae
GenusPollachius Speciespollachius
Subspecies   

Additional Information
Taxonomy References Howson & Picton, 1997, Hayward & Ryland, 1995b, Whitehead et al., 1986,
General Biology
Growth formPisciform
Feeding methodPredator
Scavenger
Mobility/MovementSwimmer
Environmental positionDemersal
Typical food typesSmall fish as well as cephalopods and benthic crustaceans. HabitFree living
BioturbatorNot relevant FlexibilityLow (10-45 degrees)
FragilityIntermediate SizeLarge(>50cm)
HeightNot researched Growth Rate0.3 kg / year
Adult dispersal potential>10km DependencyIndependent
SociabilitySolitary
Toxic/Poisonous?No
General Biology Additional Information
Biology References Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Cohen et al., 1990, Person-Le Ruyet et al., 2006,
Distribution and Habitat
Distribution in Britain & IrelandFound off all British and Irish coasts.
Global distributionFound in north-west Europe from Norway, Latvia and the Shetlands to northern Spain, in the Mediterranean off the coasts of Italy, and north-west Atlantic off the coasts of Canada.
Biogeographic rangeCold temperate to warm temperate. Depth rangeFrom 10 m to 200 m depth.
MigratorySeasonal (environment)   
Distribution Additional Information

Substratum preferencesBedrock
Physiographic preferencesOpen coast
Offshore seabed
Enclosed coast / Embayment
Biological zoneSublittoral Fringe
Upper Infralittoral
Lower Infralittoral
Upper Circalittoral
Lower Circalittoral
Circalittoral Offshore
Bathybenthic (Bathyal)
Wave exposure
Tidal stream strength/Water flow SalinityFull (30-40 psu)
Habitat Preferences Additional Information
Distribution References Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Cohen et al., 1990,
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismOviparous
Reproductive SeasonFebruary to May Reproductive LocationWater column
Reproductive frequencyAnnual episodic Regeneration potential No
Life span11-20 years Age at reproductive maturity3-5 years
Generation timeNot researched Fecundity3 million or more
Egg/propagule size1.1 - 1.2 mm Fertilization typeExternal
Larvae/Juveniles
Larval/Juvenile dispersal potential>10km Larval settlement periodNot relevant
Duration of larval stageNot relevant   
Reproduction Preferences Additional Information
Reproduction References Munk & Nielsen, 2005, Cohen et al., 1990, Suquet et al., 2005, Person-Le Ruyet et al., 2006,
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