Concept
Low energy littoral rock
| URI | http://vocab.nerc.ac.uk/collection/C35/current/A1_3/1/ | |
|---|---|---|
| Within Vocab | European Nature Information System Level 3 Habitats | |
| Alternative Labels | ||
| Definition | Sheltered to extremely sheltered rocky shores with very weak to weak tidal streams are typically characterised by a dense cover of fucoid seaweeds which form distinct zones (the wrack [Pelvetia canaliculata] on the upper shore through to the wrack [Fucus serratus] on the lower shore). Where salinity is reduced (such as at the head of a sea loch or where streams run across the shore) [Fucus ceranoides] may occur. Fucoids also occur on less stable, mixed substrata (cobbles and pebbles on sediment) although in lower abundance and with fewer associated epifaunal species; beds of mussels [Mytilus edulis] are also common. In summer months, dense blankets of ephemeral green and red seaweeds can dominate these mixed shores. Two biological subtypes have been described: Dense blankets of fucoid seaweeds dominating sheltered, fully marine littoral rocky shores (A1.31) and fucoids dominating variable salinity rocky shores (A1.32). | |
| Date | 2010-02-18T14:46:17 | |
| Identifier | SDN:C35::A1_3 | |
| Note | accepted | |
| Is Version Of | A1_3 | |
| version | 1 | |
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