BIOTIC Species Information for Patella ulyssiponensis
Researched byKen Neal & Marie Skewes Data supplied byMarLIN
Refereed byThis information is not refereed.
General Biology
Growth formConical
Feeding methodHerbivore
Environmental positionEpibenthic
Typical food typesEpilithic algae and biofilms. HabitFree living
BioturbatorNot relevant FlexibilityNone (< 10 degrees)
FragilityRobust SizeSmall-medium(3-10cm)
HeightInsufficient information Growth Rate5 - 7 mm/year
Adult dispersal potentialNone DependencyIndependent
General Biology Additional InformationOn rocky shores of wave exposure grade 1 (Ballantine scale: Ballantine, 1964), Patella ulyssiponensis occurs at densities of 1000 m² but individuals are small (Thompson, 1979). On less wave exposed shores density is lower but individuals are larger.

Patella ulyssiponensis is parasitised by Cercaria patellae, a trematode platyhelminth, which have infection levels of 5-10% in adults and can cause damage of the digestive gland. Gymnophallid metacercariae infect between the mantle and the shell and have an infection level of approximately 5%. The gut of Patella ulyssiponensis is sometimes infected by larval cyclophyllidean tapeworms (Kinne, 1980).

Biology References Thompson, 1979, Kinne, 1980, Delaney et al., 1998,
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