|General Information||Taxonomy and identification||General biology||Habitat preferences and distribution||Reproduction and longevity||Sensitivity||Importance|
Image Keith Hiscock - Electra pilosa on macroalgae. Image width ca 10 cm.
Image copyright information
Electra pilosa is not listed under any importance categories.
|Researched by:||Dr Harvey Tyler-Walters||Refereed by:||Dr Peter J. Hayward|
|Phylum||Bryozoa||Sea mats, horn wrack & lace corals|
|Recorded distribution in Britain and Ireland||Common on all coasts of the British Isles, although under recorded on parts of the east coast.|
|Habitat information||Colonizes a variety of substrata in marine habitats from low water into the shallow sublittoral, particularly macroalgae such as Fucus serratus and laminarians.|
|Description||Electra pilosa may form star shaped or broad sheet colonies on the fronds of large algae (e.g. Laminaria and fucoids), small irregular patches on stones and shells, narrow tufts (independent of the substratum), or cylindrical incrustations around the fronds of small red algae (e.g. Mastocarpus stellatus). The zooids are ovate-oblong in shape, typically 0.5-0.6 by 0.25-0.35 mm. About half the front of the zooid is calcified but translucent, perforated by large pores, leaving an oval, membranous, frontal area distally, surrounded by 4-12 (often 9) spines. Spines vary in length but the median, proximal spine is always present and usually larger than the rest, although in some cases it may become well developed and longer than the zooid giving the colony a hairy appearance.|
This review can be cited as follows:
Dr Harvey Tyler-Walters 2005. Electra pilosa. A sea mat. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 19/06/2013]. Available from: <http://www.marlin.ac.uk/speciesfullreview.php?speciesID=3246>