BIOTIC

BIOTIC Species Information for Delesseria sanguinea
All Taxonomy Biology Distribution Reproduction

Researched by	Dr Harvey Tyler-Walters	Data supplied by	MarLIN
Refereed by	Dr Joanna Jones
Distribution and Habitat
Distribution in Britain & Ireland	Recorded from all coasts of the British Isles. However, records from the east coasts are sparse, presumably due to the lack of suitable substrata.
Global distribution	Recorded from the north eastern coast of Iceland to the Russian coast near Murmansk. Its southern limit is in Sables d'Olonnes, northern France. It is also found in the Baltic.
Biogeographic range	Not researched	Depth range	Lower eulittoral to at least 30 m
Migratory	Non-migratory / Resident
Distribution Additional Information

Substratum preferences	Bedrock Large to very large boulders Small boulders Rockpools	Physiographic preferences	Strait / sound Ria / Voe Enclosed coast / Embayment
Biological zone	Lower Eulittoral Upper Infralittoral Sublittoral Fringe	Wave exposure	Extremely Exposed Very Exposed Exposed Moderately Exposed
Tidal stream strength/Water flow	Moderately Strong (1-3 kn) Weak (<1 kn)	Salinity	Variable (18-40 psu) Full (30-40 psu) Reduced (18-30 psu)
Habitat Preferences Additional Information
Distribution References	Norton, 1985, Maggs & Hommersand, 1993, Lüning, 1990, South & Tittley, 1986, Dickinson, 1963, Rietema, 1993, Kain, 1987, Molenaar & Breeman, 1997, JNCC, 1999, Picton & Costello, 1998, Hardy & Guiry, 2003,