BIOTIC Species Information for Labrus bergylta
Researched byMorvan Barnes Data supplied byMarLIN
Refereed byThis information is not refereed
Scientific nameLabrus bergylta Common nameBallan wrasse
MCS CodeZG399 Recent Synonyms

PhylumChordata SubphylumVertebrata
SuperclassGnathostomata ClassOsteichthyes
SubclassTeleostei OrderPerciformes
Suborder FamilyLabridae
GenusLabrus Speciesbergylta

Additional Information
Taxonomy References FishBase, 2000, Muus & Dahlstrom, 1974, Howson & Picton, 1997, Hayward & Ryland, 1995b, Whitehead et al., 1986,
General Biology
Growth formPisciform
Feeding methodPredator
Environmental positionDemersal
Typical food typesPredominantly benthic crustaceans and molluscs. HabitFree living
BioturbatorNot relevant FlexibilityLow (10-45 degrees)
FragilityIntermediate SizeMedium-large(21-50cm)
HeightNot researched Growth Rate4-7 cm / year (K=0.11)
Adult dispersal potential>10km DependencyIndependent
General Biology Additional Information
Biology References Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969, Darwall et al., 2006, Dipper et al., 1977, Artuz, 2005,
Distribution and Habitat
Distribution in Britain & IrelandFound off all British and Irish coasts although less common in the southern North Sea
Global distributionFound in north-west Europe from Poland and Scotland to northern Spain. Possibly recorded from Madeira, the Azores, the Canary Islands as well as the Mediterranean and Adriatic.
Biogeographic rangeTemperate. Depth rangeFrom 10 m to 30 m depth.
MigratoryNon-migratory / Resident   
Distribution Additional Information

Substratum preferencesBedrock
Physiographic preferencesOpen coast
Offshore seabed
Biological zoneSublittoral Fringe
Upper Infralittoral
Lower Infralittoral
Upper Circalittoral
Lower Circalittoral
Wave exposure
Tidal stream strength/Water flow SalinityFull (30-40 psu)
Habitat Preferences Additional Information
Distribution References NBN, 2002, FishBase, 2000, Picton & Costello, 1998, Muus & Dahlstrom, 1974, Hayward & Ryland, 1995b, Whitehead et al., 1986, Wheeler, 1969,
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismOviparous
Reproductive SeasonJune to July Reproductive LocationWater column
Reproductive frequencyAnnual episodic Regeneration potential No
Life span21-100 years Age at reproductive maturity6-10 years
Generation timeNot researched Fecundityprobably about 1,000
Egg/propagule size0.7-1.1 mm Fertilization typeExternal
Larval/Juvenile dispersal potentialInsufficient information Larval settlement periodNot relevant
Duration of larval stageNot relevant   
Reproduction Preferences Additional InformationAll are born female and change sex when 4-14 years of age.
Reproduction References Munk & Nielsen, 2005, Darwall et al., 2006, Artuz, 2005b, Fives, 1976,
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