BIOTIC

BIOTIC Species Information for Ceramium virgatum
All Taxonomy Biology Distribution Reproduction

Researched by	Dr Keith Hiscock and Paolo Pizzolla	Data supplied by	MarLIN
Refereed by	Dr Fabio Rindi
Distribution and Habitat
Distribution in Britain & Ireland	Found on most suitable shores around Britain and Ireland.
Global distribution	Maggs & Hommersand (1993) note that the 'Ceramium rubrum complex' is widely distributed in the North Atlantic but the distribution of component species requires reassessment.
Biogeographic range	Not researched	Depth range
Migratory	Non-migratory / Resident
Distribution Additional Information	Ceramium virgatum may be particularly abundant in the summer. It thrives in rockpools and occurs in still water situations where dilution with freshwater is likely to occur.

Substratum preferences	Cobbles Pebbles Gravel / shingle Algae Artificial (e.g. metal/wood/concrete) Rockpools	Physiographic preferences	Open coast Strait / sound Sealoch Ria / Voe Estuary Enclosed coast / Embayment Strait / sound
Biological zone	Mid Eulittoral Lower Eulittoral Sublittoral Fringe Upper Infralittoral	Wave exposure	Extremely Exposed Very Exposed Exposed Moderately Exposed Sheltered Very Sheltered Extremely Sheltered
Tidal stream strength/Water flow	Weak (<1 kn) Very Weak (negligible)	Salinity	Variable (18-40 psu) Full (30-40 psu)
Habitat Preferences Additional Information
Distribution References	Dickinson, 1963, Fish & Fish, 1996, Maggs & Hommersand, 1993, Whelan & Cullinane, 1985, NBN, 2002, Hardy & Guiry, 2003, Hardy & Guiry, 2003,