BIOTIC Species Information for Gobius cobitis
Click here to view the MarLIN Key Information Review for Gobius cobitis
Researched byKaren Riley Data supplied byMarLIN
Refereed byProf. Robert Patzner
General Biology
Growth formPisciform
Feeding methodOmnivore
Mobility/MovementSwimmer
Environmental positionDemersal
Typical food typesCrustaceans, polychaetes, small fishes, insects and large amounts of green algae. HabitFree living
Bioturbator FlexibilityHigh (>45 degrees)
FragilityIntermediate SizeMedium-large(21-50cm)
Height Growth RateInsufficient information
Adult dispersal potentialNo information found DependencyIndependent
SociabilitySolitary
Toxic/Poisonous?No
General Biology Additional InformationThe feeding habits of Gobius cobitis vary with the size of the animal. Young fish, which measure about 8-9 cm, feed on smaller food items such as copepods, ostracods and small amphipods (Gibson, 1970). As the individual grows it will feed on larger food items until its diet consists of large amounts of green algae, Ulva spp., smaller amounts of crustaceans such as amphipods, crabs, prawns, amphipods, isopods and extremely small amounts of polychaetes and small fishes, particularly juveniles of the blenny, Blennius pholis (Potts & Swaby, 1992). Its longevity is approximately 10 years and the maximum total length reported was 23-27 cm (Potts & Swaby, 1992; Hayward et al., 1996). No difference in longevity has been noticed between sexes (Gibson, 1970).
Biology References Potts & Swaby, 1992, Gibson, 1970, Hayward et al., 1996,
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