Concept
Sponges, bryozoans and ascidians on deeply overhanging lower shore bedrock
| URI | http://vocab.nerc.ac.uk/collection/M24/current/LROVSBYAS/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 97.06 | |
| Alternative Labels | LR.Ov.SByAs | |
| Definition | Overhanging, and shaded vertical, bedrock on the lower shore, which is not subject to appreciable wave-surge, is characterised by turfs of bryozoans (Umbonula littoralis and Scrupocellaria spp.), sponges (Grantia compressa, Halichondria panicea and Hymeniacidon perleve) and colonial ascidians (Botryllus schlosseri and Botrylloides leachi). The overhanging rock frequently supports the barnacles Balanus crenatus and Balanus perforatus (sometimes at high densities), and the calcareous-tubed polychaetes Spirorbis spp. and Pomatoceros triqueter. Some overhangs have a high abundance of the ascidian Dendrodoa grossularia. | |
| Date | 2019-11-26T11:41:44 | |
| Identifier | SDN:M24::LROVSBYAS | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
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