BIOTIC Species Information for Hydrobia ulvae
Researched byLizzie Tyler Data supplied byUniversity of Sheffield
Refereed byThis information is not refereed.
General Biology
Growth formTurbinate
Feeding methodSurface deposit feeder
Sub-surface deposit feeder
Environmental positionEpifaunal
Typical food typesDetritus, periphytic microalgae. HabitFree living
BioturbatorNot relevant FlexibilityLow (10-45 degrees)
FragilityRobust SizeVery small(<1cm)
HeightInsufficient information Growth RateInsufficient information
Adult dispersal potential100-1000m DependencyIndependent
General Biology Additional InformationThe males can be distinguished by a visible penis. Frequently found in very high densities - has been recorded up to 300,000 per square metre. Growth rate varies with time of year and with degree of parasite infestation. Parasite infestation is believed to cause increased growth rates, gigantism and altered morphology in this species. Parasitised snails may reach up to 9mm in height. Parasitism also affects behaviour, slowing locomotion and reducing burrowing activity. The feeding method of Hydrobia ulvae can also be classified as 'microbrowser'.
Biology References Graham, 1988, Fretter & Graham, 1994, Clay, 1960, Sola, 1996, Huxham et al., 1995, Jensen & Mouritsen, 1992, Hayward & Ryland, 1990, Julie Bremner, unpub data,
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