BIOTIC

BIOTIC Species Information for Ascidiella scabra
All Taxonomy Biology Distribution Reproduction

Researched by	Dr Keith Hiscock	Data supplied by	MarLIN
Refereed by	This information is not refereed.
Distribution and Habitat
Distribution in Britain & Ireland	Present all around Britain and Ireland.
Global distribution	Present from the Faeroe Islands and Trondheimfjord in the north, occurring in the Kattegat and extending into the Mediterranean.
Biogeographic range	Not researched	Depth range	+2 - 300 m
Migratory	Non-migratory / Resident
Distribution Additional Information

Substratum preferences	Artificial (e.g. metal/wood/concrete) Bedrock Large to very large boulders Small boulders Cobbles Algae Under boulders Biogenic reef	Physiographic preferences	Open coast Offshore seabed Strait / sound Sealoch Ria / Voe Estuary Enclosed coast / Embayment
Biological zone	Sublittoral Fringe Upper Infralittoral Lower Infralittoral Upper Circalittoral Lower Circalittoral	Wave exposure	Moderately Exposed Sheltered Very Sheltered Extremely Sheltered
Tidal stream strength/Water flow	Strong (3-6 kn) Moderately Strong (1-3 kn) Weak (<1 kn)	Salinity	Full (30-40 psu) Variable (18-40 psu)
Habitat Preferences Additional Information
Distribution References	Lindsay & Thompson, 1930, Millar, 1970, NBN, 2002,