BIOTIC

BIOTIC Species Information for Rhodothamniella floridula
All Taxonomy Biology Distribution Reproduction

Researched by	Karen Riley	Data supplied by	MarLIN
Refereed by	This information is not refereed.
Distribution and Habitat
Distribution in Britain & Ireland	Rhodothamniella floridula occurs on the coast of Scotland, the north east, south and south west coasts of England and in Wales and Northern Ireland.
Global distribution	Occurs in northwest Europe
Biogeographic range	Not researched	Depth range	Littoral to 5m
Migratory	Non-migratory / Resident
Distribution Additional Information	Rhodothamniella floridula has been found on substrata other than sandy rock. For example, in St. Andrews Bay, Rhodothamniella floridula (as Rhodochorton spp.) occurred in tufts on %Halidrys siliquosa% (a brown seaweed) and in pools where %Fabricia sabella% (a polychaete worm) was common (Laverack & Blackler, 1974). In Co. Kerry, Ireland Rhodothamniella floridula (as Audouinella floridula) was also found growing on peat masses, where it binds the peat and sand together (Murphy, 1981).

Substratum preferences	Bedrock Large to very large boulders Small boulders Rockpools	Physiographic preferences	Open coast Enclosed coast / Embayment Strait / sound
Biological zone	Upper Littoral Fringe Lower Littoral Fringe Upper Eulittoral	Wave exposure	Moderately Exposed Sheltered Very Sheltered
Tidal stream strength/Water flow	Moderately Strong (1-3 kn) Weak (<1 kn)	Salinity	Full (30-40 psu)
Habitat Preferences Additional Information
Distribution References	Murphy, 1981, Hayward et al., 1996, Connor et al., 1997(b), Dickinson, 1963, Dixon & Irvine, 1977, Laverack & Blackler, 1974, Hardy & Guiry, 2003,