BIOTIC Species Information for Diplosoma listerianum
Researched byDan Bayley Data supplied byMBA
Refereed byThis information is not refereed.
Scientific nameDiplosoma listerianum Common nameA sea-squirt
MCS Code Recent Synonyms

PhylumChordata SubphylumTunicata
Superclass ClassAscidiacea
Subclass OrderEnterogona
SuborderAplousobranchia FamilyDidemnidae
GenusDiplosoma SpeciesListerianum

Additional Information
Taxonomy References Howson & Picton, 1997, Hayward & Ryland, 1995b, Gibson et al., 2001, Hayward et al., 1996, Millar, 1970, NBN, 2002, JNCC, 1999, Crothers, 1966, Bruce et al., 1963, MBA, 1957,
General Biology
Growth form Feeding methodActive suspension feeder
Mobility/Movement Environmental positionEpilithic
Typical food typesZooplankton, detritus HabitAttached
Bioturbator Flexibility
Fragility SizeVery small(<1cm)
Height Growth Rate
Adult dispersal potential Dependency
General Biology Additional Information
Biology References
Distribution and Habitat
Distribution in Britain & IrelandAll Great Britain
Global distributionMediterranean, North-western Europe, northern Norway.
Biogeographic rangeTemperate Depth rangeSublittoral - 80 m depth
Distribution Additional Information

Substratum preferences Physiographic preferences
Biological zone Wave exposure
Tidal stream strength/Water flow Salinity
Habitat Preferences Additional InformationSeagrass, algal fronds, hard substrata
Distribution References Hayward & Ryland, 1995b, Gibson et al., 2001, Hayward et al., 1996, Millar, 1970, NBN, 2002, JNCC, 1999, Crothers, 1966, Bruce et al., 1963, MBA, 1957,
Reproduction/Life History
Reproductive typeBudding
Developmental mechanism
Reproductive Season Reproductive Location
Reproductive frequencyAnnual episodic Regeneration potential No
Life span<1 year Age at reproductive maturity<1 year
Generation time<1 year Fecundity
Egg/propagule size Fertilization type
Larval/Juvenile dispersal potential Larval settlement periodApril-May, June-August, October
Duration of larval stage1 month   
Reproduction Preferences Additional InformationLife span dependant on temperature, with an optimum temperature of 15-17 °C. Temperatures greater than 25 °C cause a delay in maturation. Colony death occurs 1 month after sexual reproduction starts.
Reproduction References Brunetti et al., 1988,
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