Biodiversity & Conservation

Rhodothamniella floridula in upper littoral fringe soft rock caves

LR.LR.Ov.RhoCv

LR.RhoCv

Image Kathryn Birch - Rhodothamniella floridula in upper littoral fringe soft rock caves.
Image copyright information

Distribution map

LR.LR.Ov.RhoCv recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

  • EC_Habitats
  • UK_BAP
  • OSPAR

Recorded distribution in Britain and Ireland

Recorded in chalk caves from the Isle of Thanet, Kent (Tittley, 1985) and North Landing, Humberside (George et al., 1988).

Habitat preferences

Temperature range preferences - No information found

Water clarity preferences - High clarity / Low turbidity
Medium clarity / Medium turbidity
Low clarity / High turbidity

Limiting Nutrients - Nitrogen (nitrates)

Other preferences - No text entered

Additional information

The chalk at North Landing is harder than on the Isle of Thanet and flint intrusions are present, enabling the growth of Hildenbrandia rubra. The distribution of this biotope is limited to suitable environmental conditions on suitable rock surfaces (e.g. chalk caves) many of which have been affected by the construction of sea defences resulting in loss of this biotope in parts of the UK (Marine Task Force, 1993).

This review can be cited as follows:

Riley, K. 2007. Rhodothamniella floridula in upper littoral fringe soft rock caves. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 25/05/2013]. Available from: <http://www.marlin.ac.uk/habitatpreferences.php?habitatid=39&code=1997>