BIOTIC Species Information for Botryllus schlosseri
Click here to view the MarLIN Key Information Review for Botryllus schlosseri
Researched byLizzie Tyler Data supplied byUniversity of Sheffield
Refereed byThis information is not refereed.
Distribution and Habitat
Distribution in Britain & IrelandFound all around Britain and Ireland
Global distributionPresent from the Faeroe Islands and west and south Norway to the Mediterranean including the Adriatic and Black Seas. Also present in the western Atlantic from Maine to New Jersey and in Florida.
Biogeographic rangeNot researched Depth range
MigratoryNon-migratory / Resident   
Distribution Additional InformationPopulations in the western Atlantic may have arrived on shipping and it is likely that, as a fast-growing fouling organism, Botryllus schlosseri may spread readily to other parts of the world.

Substratum preferencesBedrock
Cobbles
Large to very large boulders
Small boulders
Physiographic preferencesOpen coast
Strait / sound
Sealoch
Ria / Voe
Biological zoneLower Eulittoral
Sublittoral Fringe
Upper Infralittoral
Lower Infralittoral
Upper Circalittoral
Wave exposureModerately Exposed
Very Exposed
Exposed
Sheltered
Very Sheltered
Tidal stream strength/Water flowVery Strong (>6 kn)
Strong (3-6 kn)
Moderately Strong (1-3 kn)
Weak (<1 kn)
Very Weak (negligible)
SalinityFull (30-40 psu)
Variable (18-40 psu)
Habitat Preferences Additional Information
Distribution References Berril, 1950, Hayward & Ryland, 1990,
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